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| موضوع: كتاب Plant Design and Economics for Chemical Engineers الأحد 16 مايو 2021, 1:35 am | |
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أخوانى فى الله أحضرت لكم كتاب Plant Design and Economics for Chemical Engineers Fourth Edition Max S. Peters Klaus D. Timmerhaus Professors of Chemical Engineering University of Colorado
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CONTENTS Preface Prologue-The International System of Units (SI) 1 Introduction 2 Process Design Development 3 General Design Considerations 4 Computer-Aided Design 5 Cost and Asset Accounting 6 Cost Estimation 7 Interest and Investment Costs 8 Taxes and Insurance 9 Depreciation 10 Profitability, Alternative Investments, and Replacements 11 Optimum Design and Design Strategy 1 2 Materials Selection and Equipment Fabrication AB CD The Design Report Materials Transfer, Handling, and Treatment Equipment-Design and Costs Heat-Transfer Equipment-Design and Costs Mass-Transfer and Reactor Equipment-Design and Costs Statistical Analysis in Design Appendixes The International System of Units 61) Auxiliary, Utility, and Chemical Cost Data Design Problems Tables of Physical Properties and Constants Indexes Name Index 893 Subject Index SUBJECTINDEX Abbreviations, accepted, 472-473 in reports, 471 Abstract of reports, 455, 458 Accounting: asset and cost, 137-148 basic relationships in, 139 procedures for, 138-139 purpose of, 137 cost, materials, 146-148 methods for, 145-148 types of accounts for, 146-148 Accumulations accounts, 146 Acid eggs, 522 Acquisition analysis, 329-336 ACRS, 273, 276, 286-290 Acrylonitrile butadiene styrene, 436 Administrative costs, 194-196, 206-207, 211 ADR, 273-276 Agitators, cost of, 540 A h : analysis of, 53 compressed, cost of, 815 Air compressors, 523-525 cost of, 529-531, 810 Air-conditioning units, cost of, 808 Air-displacement systems, 522-523 Air lift, 522 Air pollution: abatement of, 79-84 sources of, 50 Air-suction rate for rotary vacuum filters, 551-554 Algorithm: definition of, 386-388 simplex, 388-393 Alkylation of benzene, 23-34 Alternative comparisons, 296 Alternative investment analysis, 315-329 by capitalized costs, 230-232 practical factors in, 335-336 as replacements, 329-336 Aluminum, 432,440-442 Aluminum fittings, cost of, 504-505 Aluminum pipe, cost of, 504-505 Amortization, definition of, 267~ Annuity: definition of, 226-230 for depreciation calculations, 228-229 due, 230 Appendix to reports, 455-458 Approach to design, 11-12 Area, mean, for heat transfer, 587-588 ASPEN PLUS, 127 Asset guide-line period, 273-275 Assets in accounting, 139-145 definition of, 139 types of, 140-142 Assumed liability, 262 Assumptions in design, 11 Atomic weights, table of, 891 897898 SUES.JECT INDEX Attractive nuisance, 263 Audits, project, 137-142 Automotive materials-handling equipment, cost of, 568 Average-unit-cost estimate, 191-192 Calculations in reports, sample, 462 Calorie, types of, 798n. Capacity, plant, 155-156, 349-361 Capacity exponents: for equipment, 170 for plants, 183-184, 186-187 Back-mix reactor design, 721, 728 Baffles in heat exchangers, 595, 610-612 pressure drop over, 599-602, 605-606 Bailee’s liability, 263 Balance sheet, 140-142 Barometric-leg pumps, 523 Batch operation versus continuous, 35-36 Batch-reactor design, 721-727 Battery-limit additions, definition of, 167 Berl saddles, 688-690 cost of, 710 Billion, meaning of, 789-790 Biochemical oxygen demand (BOD), 87-88 Biodegradable synthetic detergent, manufacture of, 23-34 Blenders, cost of, 556-558 Blowers, cost of, 531 BOD, 87-88 Boilers, cost of, 809 Boiling liquids, heat-transfer coefficients for, 597 Bonds, interest rate on, 248-249 Book value: definition of, 277 in replacement analysis, 332 Box-Wilson design, 766, 769 Break-even chart, 155-156 for optimum analysis, 349-350 Brick as material of construction, 434 British thermal unit (Btu), types of, 798n. Bubble-cap contactors, 650-687 caps and risers in, 652-654, 679-680 cost of, 709-713 downcomers in, 684-686 entrainment in, 683-684 liquid flow in, 683 plate efficiencies of, 661-667 plate stability for, 686 pressure drop in, 667-679 relative merits of packed and, 706-707 trays for, 652, 654-656, 681-684 velocities in, 656-661, 680 weirs in, 684-686 Buildings, cost of, 174-175, 803-805 Burning for equipment fabrication, 447 Butyl rubber, 435 CACHE, 111, 118 CAD/CAM, 110 Capital: cost of, 246-250, 297 sources of, 248 Capital costs for plants, 186-187 Capital gains taxes, 156-157 Capital investments, 157-158 cost factors in, 166-179 estimation of, 158-163, 179-193, 210 types of, 157-158 Capital ratio, 191 Capital-recovery factor, 228 Capital sink, 150-152 Capitalized costs: application of, 231-232 definition of, 230-231 equations for, 231 for profitability evaluation, 297-299, 308-309 examples of applications of, 231, 324-329 Capitalized engineering, 3 Caps in bubble-cap columns, 652-654, 679-680 Carbon as material of construction, 434 Cash flow, 150-154 Cash position, cumulative, 152-154 Cash ratio, 140-142 Cash recovery period (see Payout period) Cast-iron pipe and fittings, cost of, 509-510 Cellulose acetate butyrate, 436 Centrifugal pumps, 518-521 cost of, 526 Centrifugal separators, 560-561 Charpy values, 439 CHEMCAD, 126 Chemical Abstracts, information on, 19 Chemical Engineering Catalog, information on, 20 Chemical Engineering plant cost index, 163, 165 Chemical hazards, 60,83-84, 86 Chemical Marketing Reporter, 1 9 7 Chemical oxygen demand (COD), 87 Chemicals, cost of, 816 Chi-squared test for statistical analysis, 751-754, 758 Chlorinated polyether, 436, 443 Chlorobenzene, reactor design for production of, 718-726 Chloroprene, 435 Chutes, cost of, 569 CLADR, 273-275286-288 Class life depreciation, 270-276, 286-290SUBJECT INDEX 899 Coal, cost of, 815 Coefficients of heat transfer (see Heat-transfer coefficients) Common stock, dividend rates on, 248-249 Company policies, effect on cost by, 155 Comparison, of different processes: items to consider in, 34-36 investment, 9-11, 315-329 Compartmentalization for capital investment, 191-193 Composite account depreciation, 290 Compound interest, definition of, 217-218 (See also specific designation) Compound interest factors: definition of, 223n., 236-237 tables of, 219, 234-235, 240-246 (See also specific name) Compressibility exponent of cake for filtration, 545 Compressors, 523-525 cost of, 529-530,810 specifications for, 17 Computer-aided design, 110-134 Computer solutions for reactor design, 718-726 Condensation, heat-transfer coefficients for, 597-599 Condensers: cost of, 619-620 optimum water flow rate in, 368-371 Conduction, heat transfer by, 580-581 Confidence-interval estimation, 756-759 Confidence level, definition of, 745-746 Constants, table of, 870-871 Construction: cost of, 177-178, 803-805 materials of, 42-43, 421-446 (See also specific designation) plant, 18-19 Containers, cost of, 541 Contingencies, cost of, 209-210 Contingency factors, 178-179 Contingency test for statistical analysis, 752 Continuous cash flow: equations for, 227-228 for profitability analyses, 232-239 Continuous interest: basic equations for, 222-225 concept of, 220-222 for continuous cash flow, 227-228 for depreciation calculations, 229 examples of application of, 303-304, 310-314 for profitability analyses, 232-239 Continuous operation versus batch, 35-36 Contraction, friction due to, 484 Contractor’s fee, 178 Control, of plants, 96-98 Convection, heat transfer by, 580, 582, 597-598 Conversion factors: tables of, 870-871 SI units, 790-799 Convex set in linear programming, 382 Conveyors, cost of, 569-571 Cooling towers, cost of, 810 COPE, 128 Copper and alloys, 431, 440-442 Corrosion, 42-43 table of materials’ resistance to, 440-442 Cost accounting, 137-148 (See also Accounting) Cost estimation, 4-5, 150 examples of, for production of synthetic detergent, 23-34 information guide to, 161 (See also specific item) Cost factors in capital investment, 166-179 Cost indexes, 163-166 Cost of equipment: blenders, 556-558 blowers, 531 boilers, 809 bubble-cap contactors, 709-713 centrifugal pumps, 526 compressors, 529-530, 810 condensers, 619-620 containers, 541 conveyors, 569-571 cooling towers, 810 crushers and grinders, 562-566 crystallizers, 561 drives, 532-533 dryers, 713-716 ductwork, 808 dust collectors, 566-567 ejectors, 528 evaporators, 623 fans, 531 filters, 554-556 gates, 569. gear pumps, 527 handrails, 711 heat exchangers, 615-621 instrumentation, 172-173, 812-814 insulation, 172, 513 kettles, 731 kneaders, 559 ladders, 711 level controllers, 813 liquid level gages, 812 mixers, 558 motors, 533900 SUJ3JECl’ I N D E X Cost of equipment (Cont.) platforms, 711 pressure indicators, 814 pressure vessels, 539-542 pumps, 526-527 reactors, 730-732 reboilers, 731 reciprocating pumps, 515-518 rotary pumps, 518-521 separators, 559-561 sieve trays, 709 storage equipment, 539-542 tanks, 539-542 trays, 709 valve trays, 709 valves, 511-513 Costs (see specific designation) CPES, 128 Credits in bookkeeping, 143-144 Criminal liability, 263 Critical path method (CPM), 18, 407-408 Crushing and grinding equipment, cost of, 562-566 Crystallizers, cost of, 561 Cumulative cash position, 152-154 Current assets, 140-141 Current-average method’for materials accounting, 148 Current liabilities, 140-141 Current ratio, 140-142 Cutting for equipment fabrication, 447 Cyclic operations, optimum conditions for, 353-361 Debits in bookkeeping, 143-144 Declining-balance method for determining depreciation, 280-282 Deferred annuity, 230 Definitive estimate, 162 Deflation (see Inflation) Degeneracy in simplex algorithm, 390 Degrees of freedom, 128-129 in statistical analysis, 743 Density of water, 876 Depletion, 269 Depreciation cost, 267-269 accounts for, 290-291 application of annuities to, 229, 283-285 class-life, 270-276 definition of, 267-269 as fixed charge, 204-205, 210 methods for determination of, 278-290 rapid write-off of, 156-157 tax laws for, 280-281, 292 types of, 269-270 Depreciation reserve, 140 DESIGN II, 127 Design: approach to, 11-12 computer-aided, 110-134 detailed-estimate, 14, 17, 161-162 firm process, 14, 18 preliminary, 14, 17, 22, 160-162 example of, 22-34 strategy for, 341-413 Design project, procedure for, 14-19 development of, 2-4 Design report (see Reports) Detailed-estimate designs, 14, 17, 162 Detailed-item estimates, 179-180 Detergent, manufacture of, 23-34 Diagrams, flow (see Plow diagrams) Dichotomous search, 407 Dimensionless numbers, definitions of, 468-469 DIPPR, 117 Direct costs, 210 in capital investment, 167 Direct production costs, 197-204,210 Discount, definition of, 226 Discount factors: definition of, 223n., 236-237, 303 tables of, 219, 234-235, 240-246 (See aLr0 specific name) Discounted cash flow for profitability evaluation, 297,299,301-308 example of application of, 310-314, 324-329 Discrete single-payment compound-amount factor, 218-220 Discrete single-payment present-worth factor, 226 Discrete uniform-series compound-amount factor, 227 Discrete uniform-series present-worth factor, 228 Distillation towers: feed-tray location for, 10 optimum reflux ratio for, 371-376 specifications for, 16 (See alro Bubble-cap contactors, Packed towers, Sieve trays, and Valve trays) Distribution costs, 194, 196, 207, 211 Distribution in statistical analyses, 745-746 Dividends, tax exemptions for, 259 Documentation, 137-149,452-476 Double-entry bookkeeping, 143-144 Downcomers in tray columns, 684-686 Drives, cost of, 532-533 Dryers, cost of, 713-716SUBJECT I N D E X 901 Ductwork, cost of, 808 Dust collectors, cost of, 566-567 Dynamic programming, strategy of, 393-402 Economic lot size, 350 Effective interest, 218-222, 224, 241 Efficiency, packing, 702-706 plate, 661-667 pump, 517-518,520 Ejectors, cost of, 528 Electrical installation, cost of, 174, 807 Electricity, cost of, 815 Electromotive series of metals, 433 Emissivity of surfaces, 582-585 Energy balance, mechanical, 479-480 for reactor design, 715-716 total, 479-480 Engineering News Record cost index, 163-165 Entrainment, 683-684 Environmental protection, 75-91 regulations for, 74-78 Epoxy resins, 437-443 Equipment, fabrication of, 446-449 specifications for, 22, 36-42 tables for estimated life of, 271-275 (See also specific name) Equipment cost: capacity exponents for, 165 estimation by scaling, 169-171 (See aLFo specific name and Cost of equipment) Equities in accounting, 139 Equivalents, list of, 870-871 Erosion, 42-43 Error propagation, 770-771 Estimated variance, 743-744 Evaporators: cost of, 623 optimum operation conditions for, 355-360 Evolutionary operations (EVOP), 407, 769-770 Exact interest, 217 Excise taxes, 254 Expansion, friction due to, 484 Expensed engineering, 3 Experimental design, statistical strategy in, 766-770 Explosion hazards, 55-59 Exponents: for equipment cost versus capacity, 169-171 for unit-capacity costs, 185-187 F-test for statistical analysis, 746, 749n., 752-756,769 Fabrication: of equipment, 446-449 of stainless steel, 423-430 Factorial design, 766-769 Factors: in equipment scale-up and design, 36-39 for investment corrections, 182 Fanning equation, 481-483 Fans, cost of, 531 Fastening for equipment fabrication, 447-448 Fault-tree analysis, 69-70 Feasibility survey, factors in, 14-15 Federal environment regulations, 75-78 Feed-tray location in distillation towers, 10 Fiberglass reinforced plastics (FRP), 436-437 Fibonacci search, 407 Fifo method for materials accounting, 148 Filters: basic design equations for, 544-552 batch, cost of, 554-556 design methods for, 545-548 continuous, air-suction rate for, 551-554 cost of, 554-555 design methods for, 549-554 factors in choice of, 543 plate and frame, cost of, 556 optimum operating conditions for, 360-361 types of, 543 Financing costs, 196, 207-208, 211 Finishing in equipment fabrication, 449 Finned-tube heat-exchanger costs, 616 Fire and explosion hazards, 55-59 Firm process design, 14, 18 Fittings: cost of, 499-510 frictional effects due to, 484-486 Five-point method, 405-406 Fixed-bed reactors, 729 Fixed-capital investments, 157-158 breakdown of items in, 159-160 Fixed charges, 204, 210 Fiied-percentage method for determining depreciation, 280-283 Float-valve trays, 656 Flooding velocities: in packed towers, 697-702 in plate towers, 656-661 Flow diagrams: combined-detail, 20-21 nitric acid production, 20-22 qualitative, 20-21 quantitative, 20, 22 sodium dodecylbenzene sulfonate production, 23-34902 SUBJECT INDEX Flow diagrams (Cont.) symbols for, 889-890 Flow indicators, cost of, 813 Flow-measuring equipment, types of, 534-536 Flow-sheet symbols, 889-890 Flow-sheeting, 112 software, 125-128 ASPEN PLUS, 127 CHEMCAD, 126 COPE, 128 CPES, 128 DESIGN II, 127 FLOWIRAN, 126 HYSIM, 127 IPES, 128 PROCESS, 126 SPEED-UP, 126 FLOWTRAN, 126 Fluid transfer design, 478-498 Fluidized-bed reactors, 729 Foot, international and U.S. survey, 871n. Forecasting, 295,408-413 Formal reports, definition of, 453 Format for presentation, 36, 40-42, 453-457 Formaldehyde, production of, 6-7 Forming for equipment fabrication, 447 Fouling factors for heat transfer, 586-587 Freedom, degrees of, 128-129 in statistical analysis, 743 Frequency distribution in statistical analysis, 745-746 Friction factor, Moody plot for, 482 Friction in flow systems, 480-488 Functional-unit estimate, 191-192 Furane plastics, 436, 443 Furnaces, specifications for, 17 Future worth, factors for, 223~ Galvanic action, 432-433 Gaseous pollutants, 79-84 Gases: cost of, 815 heat capacities of, 880 thermal conductivities of, 879 viscosities of, 872-873 Gasket materials, 439, 440-442 Gates, cost of, 569 Gear pumps, cost of, 527 Geometric programming, 407 Glass as material of construction, 433-434, 440-442 Glass pipe and fittings, cost of, 505-506 Golden-section search technique, 406-407 Governmental-policies effect on costs, 155-157 Gradient, liquid, over bubble-cap trays, 672-673 Graphs in reports, 460-461 Grass-roots plant, definition of, 167 Gross-earnings costs, 194, 196-197, 208-209, 2 1 1 Guesstimation, 5 Hagen-Poiseuille law, 481~ Half-year convention, 286-290 Handling of materials, 101-102 Handrails, cost of, 711 Harmonic mean, 742 Hastelloy, 431 Haveg, 440-442 Hazards, health and safety, 47-75 HAZOPS study, 62-69 Health hazards, 47-75 Health in plant-design considerations, 47-75 Heat capacities: of gases, 880 of liquids, 881 Heat exchangers: baffles in, 595-596,599~602,605-606, 610-612 cleaning and maintenance of, 609-610 cost of, 615-621 fluid velocities in, 612 general method for design of, 642-643 length of tubes in, 607 number of tubes in, 608 optimum design of, 621, 625-642 simplified cases of, 639-642 summary of general procedure for, 634-635 pressure drop inside tubes in, 596-599, 602-605 on shell side in, 599-602, 605-606 selection of, 606-615 shell-and-tube, 580, 602-606, 609-612 specifications for, 17, 40-41, 614-615 thermal strains in, 608-609 tube data for, 886-887 tube size and pitch in, 607-608 use of steam in, 613-614 water in, 613 Heat of reaction, example calculations for, 28-29 Heat transfer: area for, mean, 587 588 by conduction, 580-581 by convection, 580, 582,597-598 mechanisms of, 580-581by radiation, 580, 582-585 rate of, for optimum cooling-water rate, 368-371 temperature-difference driving force for, mean, 588-590 theory of, 580-596 unsteady-state, 590-592 Heat-transfer coefficients: accuracy of, 592 for boiling liquids, 597 definition of, 582, 585-586 equivalent diameter and hydraulic radius for, 594-595 for film-type condensation, 597-599 for fluids in pipes and tubes, 593-595 simplified equations for, 594, 597-598 outside pipes and tubes, 595-596 for fouling, dirt, or scale, 586-587 for natural convection, 597-598 order of magnitude of, 599 overall definition of, 585-586 design values for, 600-601 for radiation, 582-585 Heat-transfer equipment (see Heat exchangers) Heat treating for equipment fabrication, 448-449 Heaters, cost of, 624 Heliarc welding, 448 HETP: definition of, 650 prediction of, 702-703, 705-706 Hoists, cost of, 572 Hold-harmless agreements, 263 Homogeneity tests for statistical analysis, 751-752 Hourly wage rates, 802 HTU, 702-705 Hydraulic efficiency of pumps, 517 Hydraulic radius: for fluid flow, 486 for heat transfer, 594-595 Hypalon, 435 HYSIM, 127 Incineration, 88-89 Income statement, 142-145 Income-tax effects: on cost of capital, 248-249 on optimum economic pipe diameter, 366-367 on profitability evaluation, 300, 324 on strategy for inflation, 409-413 (See ah Taxes) Income-tax rates, 208, 210, 255-259 Inconel, 431 Incremental investments, 315-329 Index: name, 893 subject, 897 Indexes, cost, 163-166 Indirect costs, 210 in capital investments, 160, 167 Inflation, 295 strategy for, 408-413 tax effects on, 410-413 Informal reports, definition of, 453- 454 Infringements of patents, 102 Installation costs for equipment, 171-172 Instrumentation: cost of, 172-173, 812-814 plant requirements for, 97 Insulation: cost of, 172 for pipe, 513 Insurance, 262-265 as a cost, 253, 262 cost of, 205, 210 Intalox saddles, 688, 690, 694 cost of, 710 Interest: as a cosf, 207-208, 211 definition of, 216 rate of return, 301~ types of, 216-225 (See also specific designation) International system of units @I), xiii, 778-799 advantages of, 782-785 base units for, 779-780 conversion tables for, 790-799 derived units for, 781-783 prefixes for, 786, 788-789 rules for use of, 785-790 supplementary units for, 780-781 unacceptable units for, 784 Inventions, 102 Inventory accounts, 146 Investment ratio, 191 Investment tax credit, 260 Investments: alternative, 315-329 practical factors in choosing, 335-336 as replacements, 329-335 capital (see Capital investments) comparison of, 10, 315-329 SUBJECT INDEX 903904 SUBJECT INDEX Investments (Cont.) cost of, factors affecting, 154-157 return on, acceptable, 314-315 with depreciation included in annual cash flow, 298n. discounted cash flow method for, 297-298, 301-304 incremental, 319-323 interest rate of return method for, 301n. investor’s rate of return method for, 301n. with minimum profit as an expense, 298-301 present-worth method for, 297-298, 304-308 profitability index for, 301n., 310-314 use of total and fixed-capital investment for, 298n. (See also Rate of return on investments) Investor’s rate of return, 301n. IPES, 128 Iron and steel as materials of construction, 422-424.440-442 Jet pumps, 522-523 Joint efficiencies, 538 Joule, pronunciation of, 782 Journal in accounting, 138, 144 Karbate, 440-442 Kel-F, 435 Kettles, cost of, 731 Kneaders, cost of, 559 Koroseal, 435 Labor costs, 197-202,210, 802 indexes for, 165 by location, 201 relative, 188-190 Labor requirements for plants, 197-202 Laboratory test costs, 204 Ladders, cost of, 711 Lagrange multipliers, applications of, 631 for optimum conditions, 402-403 Land, cost of, 176 Lang factors, 184 Layout, for equipment fabrication, 446 of plant, 95-96 Lead, 432 Lead pipe, cost of, 506-507 Least squares analysis, 760-764 Ledgers in accounting, 138, 144-145 Legal liability, 262-263 fessing rings, 688-690 Level controllers, cost of, 813 Liabilities; in accounting, 139 types of, 262-263 Lifo method for materials accounting, 148 Linear programming, strategy of, 376-393 Linear regression analysis, 759-764 Liquid assets, 140 Liquid flow in tray columns, 655, 683 Liquid gradient over bubble-cap trays, 672-673 Liquid-level gages, cost of, 812 Liquids: heat capacities of, 881 specific gravities of, 882 thermal conductivities of, 878 viscosities of, 874-875 Literature references in reports, 461-462 Literature surveys, 19-20 Location, plant, 91-95 Lucite, 440-442 MACRS, 273,276,286-290 Maintenance: costs for, 203, 210, 269-270 plant, 97-98 Manufacturing costs, 195-196, 210-211 Market value, definition of, 277 Marketing costs, 194, 196, 207 Marshall and Swift cost indexes, 163-164 Mass-transfer equipment, costs for, 708-716 Material balances for reactor design, 715 Materials, of construction, 42-43, 421-446 (See also specific designation) cost indexes for, 165 economics in selection of, 445-446 fabrication of, 446-449 handling of, 101-102 equipment for, cost of, 568-572 Matheson formula, 280 Matrix solution generalizations, 387n., 388n. Mean, 741-742 Mean deviation, 744 Median, 741-742 MEDLAR, 48 Metals: cost of, 422 as materials of construction, 422-433, 437-439,440~442 specific gravities of, 883 thermal conductivities of, 877 Methanol, synthesis of, 113-116 Mixers, cost of, 558 Mode, 741 Models for plant layouts, 96 Modular estimates, 191-183SUBJEm I N D E X 905 Monel, 431,440~442 Motors: cost of, 533 efficiencies of, 521 Murphree plate efficiency, 661 Name index, 893-895 Natural convection, heat-transfer coefficients for, 597-598 Nelson refinery construction cost index, 163, 165 Neoprene rubber, 435 Net present worth, method for, 297-298, 304-308 (See aho Present worth) Net realizable value, definition of, 333 Nickel and alloys, 431, 438, 440-442 Nitric acid, flow diagram for production of, 21-22 Nitrile rubber, 435 Noise control, 90-91 Nomenclature in reports, 464-470 Nominal interest, 218-222, 224, 241-244 Nonlinear regression analysis, 765 Nonmetals: as materials of construction, 433-437,440-442 thermal conductivity of, 877 Noxious gas removal, 83-84 NTU, 703 Nucerite, 434 Objective function, definition of, 376 Obsolescence, 269 Oil, cost of, 815 Operating-time effect on costs, 155-156 Operation of plants, 18-19, 96-98 Optimum conditions: accuracy and sensitivity for, 361 critical path method (CPM) for, 407-408 in cyclic operations, 353-361 dynamic programming for, 393-402 geometric programming for, 407 Lagrange multipliers for, 402-403 linear programming for, 376-393 methods of steepest ascent or descent for, 403-405 program evaluation and review technique (PERT) for, 407-408 response surface techniques for, 405-408 Optimum design: basic principles for, 6-9, 341-342 break-even chart for, 349-350 comparison of graphical and analytical methods for, 348-349 economic, 7-8 general procedures for, 343-349 of heat exchangers, 621, 625-642 operation, 8-9 practical considerations in, 343 role of incremental costs in, 343 Optimum economic pipe diameter, 343,361-368 (See also Pipe, sizing of) Optimum flow rate of cooling water in condenser, 368-371 Optimum insulation thickness, 341-342, 344-345 Optimum operating conditions for evaporators, 355-361 for filters, 360-361 tangential method for determining, 358 Optimum production rates, 349-353 Optimum reflux ratio, 371-376 Optimum temperature for oxidation of sulfur dioxide, 8-9 Order-of-magnitude estimates, 160-162 Ordinary interest, 217 Organization of reports, 454-457 Orifice meters, relationships for, 534-536 Orifices, frictional effects due to, 484-486 Overhead costs, 205-206,211 Packed towers, 687-708 allowable velocity in, 697-700 cost of components of, 708-713 flooding point in, 697-702 liquid distribution in, 691-692 loading point in, 692-694 pressure drop in, 692-697 relative merits of plate and, 706-708 Packings: characteristics of, 687-693 cost of, 710 efficiencies of, 702-706 types of, 688-690 Pall rings, 688-690 cost of, 710 Particulate removal, 81-83 Partitioning in recycle, 131-134 Pascal: definition of, 782,785 pronunciation of, 782 Passivation of steels, 430 Patents, 102 cost of, 204, 210 Payback period (see Payout period) Payoff period (see Payout period) Payout period: example of application of, 324-329 for profitability evaluation, 297-298, 309-310906 SUBJECTI- INDEX Perforated-plate towers, 651-652, 662, 681 (See aLr0 Sieve trays) Perpetuity, definition of, 230 Personal pronouns in reports, use of, 471 Personnel safety, 47-53,59-61,69-75 Phenolic resins, 436, 443 Pilot plants: definition of, 3 need of, for equipment specifications, 36-39 Pipe: cost of, 499-510 basic equations for, 363 dimensions of, table for, 888 power requirements for flow in, 479-492 safe working stresses for, 492-493 schedule number for, definition of, 493 sizing of, 495-497 optimum economic, 7-8,343,361-368, 495-497 equations for estimation of, 496-497 nomograph for, 498 velocities for, 496 strength of, 492-493 thermal expansion of, 495 water hammer in, 495 Pipe diameter: nominal, 493 optimum, 7-8,343,361-368,495-498 Pipe insulation, cost of, 513 Pipe painting, cost of, 514 Pipe roughness, equivalent, 480, 482 Piping standards, 492-494 Piping systems: cost of, 173-174,497-510 design of, 494-497 Plant: capacity of, 155-156, 349-361 construction of, 18-19 layout of, 95-96 location of, 91-95 operation of, 96-98 pilot (see Pilot plants) site selection of, 94-95 Plastics as materials of construction, 435-437, 443 Plate efficiencies for tray columns, 661-667 Plate stabilities for tray columns, 686 Platforms, cost of, 711 Plug-flow reactor design, 727-728 Point efficiencies for tray columns, 661 Poiseuille’s law, 481~ Pollution: control of, 75-91 thermal, 89-90 Polycarbonate, 436, 443 Polyethylene, 436, 443 Polypropylene, 436, 443 Polyvinyl chloride, 436, 443 Polyinyl-chloride pipes and fittings, cost of, 507-508 Porcelain, 434 Post-mortem cost accounting, 145 Power factors for plant capacity, 185-188 Power requirements: for gas compressors, 523-525 for pumping, 479-492 Practical considerations in design, 9-11 Precedence ordering in design, 383n. Predesign cost estimation, 5 Preferred stock, dividend rates on, 248-249 Preliminary designs, 14,16-18 example of, 22-34, Preliminary estimates, 160-162 Preparation of reports, 459-471 Present value: definition of, 277 method for, 304-308 (See also Present worth) Present worth: of an annuity, 228 definition of, 225-226 factors for, 223n., 236-237 method for determining depreciation, 285 method for profitability evaluation, 297-298, 304-308 example of application of, 324-329 Pressure drop: in heat exchangers, 596-606 in packed towers, 692-697 in tray columns, 667-679 Pressure indicators, cost of, 814 Pressure vessels: cost of, 539-542 design equations for, 537-538, 732 equations for wall thickness for, 450, 537-538 Prestartup costs in profitability evaluation, 310-314 Price fluctuations, 154 Probability distribution, 745-746 Process design: definition of, 2 development of, 2-4, 14-19 Process engineering, definition of, 2 Process synthesis, 112, 117-125 Product cost, estimation of, 192-209 Production costs, factors affecting, 154-157SUBJECT INDEX 907 Production-rates effect on cost, 155-156 Production schedules, for optimum rates, 350-354 break-even chart for, 349-350 Profitability: definition of, 295 factors affecting, 5-6 standards for, 296 Profitability evaluation: bases for, 291 capitalized costs for, 297-298, 308-309 discounted cash flow for, 297-298, 301-308 examples of, 310-314, 324-329 income-tax effects in, 300, 324 mathematical methods for, 297-298 comparison of, 323 payout period for, 297-298,309-310 present worth for, 297-298, 304-308 rate of return for, 298-301 Profitability index, 301n., 310-314 Program evaluation and review technique (PERT), 18, 407-408 Programming: dynamic, strategy of, 393-402 linear, strategy of, 376-393 Project audits, 137-142 Propagation of error, 770-771 Proprietorship in accounting, 139 Protruded packing, 706 Pumps: air-displacement, 515, 522-523 acid eggs, 515, 522 barometric leg, 523 centrifugal, 515,518-521 advantages and disadvantages of, 521 brake horsepower for, 520 characteristic curves for, 520-521 efficiency of, 520-521 theory for operating characteristics of, 518-521 cost of, 526-527 factors in choice of, 516 jet, 522-523 steam requirements for, 523 power requirements for, 479-492 reciprocating, 515-518 advantages and disadvantages of, 518 cost of, 525 efficiencies for, 517-518 sizing of, example for, 29-30 specifications for, 17 types of, 515 Pyrolysis, 89 Quality control, 772 Radiation, heat transfer by, 582-585 Radius, hydraulic, 486 Raschig rings, 688-690, 694, 704 cost of, 710 Rate of return on investments: acceptable, 314-315 based on discounted cash flow, 301-308 for profitability evaluation, 297-299 applications of, 317-323 with depreciation included in annual cash flow, 298n. with incremental investment, 319-323 with minimum profit as expense, 298-301 (See af!ro Investments, return on) Ratio, cash, 140-142 current, 140-142 reflux, optimum, 371-376 turnover, 190-191 Ratio factors for capital investment, 180-184 Raw materials: cost of, 197,210 cost accounting for, 146-148 Reactor design, 714-732 back-mix, 728 batch, 726-727 computer solution for, 718-726 equations for, 721-728 example calculations for, 26-30, 730-732 mechanical features of, 729-730 plug-flow, 727-728 principles of, 714-717 rate expression for, 728-729 Reactors: cost of, 730-732 specifications for, 16 types of, 721-728 Reboilers, cost of, 731 Reciprocating pumps, 515-518 cost of, 525 Recycle, 130-134 References to literature in reports, 461-462 Reflux ratio, optimum, 371-376 Refrigeration, cost of, 811, 815 Regression analysis, 759-765 Rent, cost of, 205, 210 Repairs, cost of, 203, 210, 269-270 Replacement evaluation, 329-336 Replacement value, definition of, 277 Reports: abbreviations in, 471-473 check list for, 475-476908 SUBJECT INDEX Reports (Conr.) literature references in, 461-462 organization of, 455-459 preparation of, 459-471 rhetoric for, 471-475 common errors in, 475 standard nomenclature for, 464-470 types of, 453-454 writing of, 452-476 Research, cost of, 194, 196, 207, 211 Reserve for depreciation, 140 Response surface techniques for optimum conditions, 405-407 Returns, acceptable, 314-315 related to interest, 216, 246-248 (See aL.ro Rate of return on investments) Rhetoric in report writing, 471-475 Risers in tray columns, 652-654, 680 Risk earning rate, definition of, 299 Rotameters, relationships for, 534-536 Rotary pumps, 518-521 cost of, 528-529 Royalties, cost of, 204, 210 Rubber as material of construction, 435 Safety: audits, 71-75 factors in equipment specifications, 36-40 hazards, 47-75 indexes, 70-71 in plant design considerations, 59-61, 70-75 regulations, 60-61 Safety and health, 47-75 Salvage value, definition of, 276-278 Sample calculations in reports, 462 Saran, 437, 440-442 Sawing for equipment fabrication, 447 Scale formation in evaporators, 355-360 Scaling for equipment cost estimation, 169-171 Scaling factors for heat transfer, 586-587 Scale-up for equipment specifications, 36-39 Schedule number for pipe, 493 Screen, cost of, 567 Self insurance, 264-265 Sensitivity of results for pipe sizing, 367-368 Separators, cost of, 559-561 Sequential analysis, 771-772 Series compound-amount factor, 227 Service facilities, cost of, 175-176 Service life: definition of, 270 values of, 271-276 Sewage disposal, cost of, 811-812 Shearing for equipment fabrication, 447 Shell-and-tube heat exchangers, 580, 602-606, 609-612 Shielded-arc welding, 448 SI (see International system of units) Sieve trays, 651-652, 662, 681-686 allowable velocities in, 656-661 cost of, 709 efficiency of, 661-667 pressure drop over, 667-679 Silicon rubber, 435 Silver, 432 Simple interest, 216-217 Simplex algorithm, 388-393 Simplex search, 407 Single-unit depreciation, 290-291 Singular and plural in reports, use of, 474 Sink, capital, 150-152 Sinking-fund method for determining depreciation, 283-285 Site-improvement costs, 175-176 Six-tenths-factor rule for cost estimation, 169-171 Skirt clearance, definition of, 680 Slack variable in linear programming, 377, 383-386 Slot velocities in bubble caps, 680 Social security taxes, 261 Sodium dodecylbenzene sulfonate, manufacture of, 23-34 Soil-bearing pressures, 99-100 Soldering, 448 Solid-waste disposal, 88-90 Space velocity, definition of, 728 Specific gravities: of liquids, 882 of solids, 883 Specifications, equipment, 36-42 (See also specific designation) SPEED-UP, 126 Split infinitives in report writing, use of, 475 Spread sheet, 111 Stages of plant-design project, 2-3 Stainless steel as material of construction, 423-430 classification of, 425 Stainless-steel fittings, cost of, 502-504 Stainless-steel pipe, cost of, 502 Standard cost accounting, 145 Standard deviation, 743-145 Startup: costs, 179 Static submergence, definition of, 685 Statistical analysis in design: basic concepts of, 741-746SUBJECT INDEX 909 regression analysis for, 759-765 strategy of, 766-770 tests for, 746-759 Steam: cxxt of, 815 table of properties for, 884-885 use in heat exchangers, 613-614 Steam generators, cost of, 809 Steam-jet pumps, 522-523 Steel, fittings: cost of, 499-502 as material of construction, 422-423,426-429 pipe, cost of, 499-502 standards for, 422-424 Steepest ascent or descent, method of, 403-405 Stocks, preferred and common, return on, 248-249 Stoneware, 434 Storage equipment: cost of, 539-542 design of, 536-542 Storage facilities, 100-101 Storage tanks, example of sizing of, 29-30 Straight-line method for determining depreciation, 278-279 Strategy of design, 341-413 Strategy of experimental design, 766-770 Structural design, 99-100 Study estimate, 160-162 Styrene rubber, 435 Styrene, synthesis of, 118-125, 132-134 Subject index, 897 Submerged-arc welding, 448 Subrogation rights, 263 Sulfonation of alkylbenzene, 23-25 Sulfur dioxide, optimum temperature for oxidation of, 8-9 Sum-of-the-years-digits factor with continuous cash flow, 238~ Sum-of-the-years-digits method for determining depreciation, 279, 283 Summary in reports, 455-458 Superproduction costs for optimum analysis, 351-353 Supervision, cost of, 177, 202 Supplies, cost of, 204, 210 Survey of literature, 19-20 Symbols for flow sheets, 889-890 r-test for statistical analysis, 747-751, 754 Tables in reports, 460 Tangential method for optimum conditions, 358 Tanks: cost of, 539-542 design of, 536-542 Tantalum, 432 Taxes: capital gains, 155-157, 256, 259 excise, 253-254 income, 253-254 depreciation regulation for, 260-261 (See also Depreciation cost) excess profits, 261 laws for Federal, 254-261 normal, 256, 258 state, 253 surtax, 256,258-259 local, 205, 253 property, 253-254 returns for, 261 social security, 261 Tearing in recycle, 131-134 Teflon, 435,440 Temperature-difference driving force, mean, 588-590 Temperature effects on materials of construction, 437-439 Temperature recorders, cost of, 814 Tenses in reports, 473 Testing in fabrication of equipment, 448 Thermal conductivities: of gases, 879 of liquids, 878 of metals, 877 of nonmetallic solids, 877 of water, 876 Thermal pollution, control of, 89-90 Title page for reports, 455-457 Tolerance intervals, 759 Total capital investment, 157 Towers, cost of, 707-713,810 TOXLINE, 48 Transmittal, letter of, in reports, 455, 457 Trays, cost of, 709 (See also specific type of trays) Trenches, cost of, 514 True mean, 741 True rate of return, 301n. True variance, 743 Tube cost for heat exchangers, 615 Tube size in heat exchangers, 607-608 Tubing, data table for, 886-887 Turbine pumps, 519 Turbogrid trays, 656 Turnover ratios, 190-191 Unamortized values in making replacements, 332-333 ,._ : 919 SUBJECT I N D E X Uniflex trays, 654-656 Unit cost estimates, 180 Unit-operations estimates, 191-192 Unsteady-state heat transfer, 590-592 Utilities: cost of, 202-203,710, 815 . plant requirements for, 199-200 types of, for process design, 98-99 Value, meaning of, 268 Valve trays, 651-652, 656, 681-686 allowable velocities for, 656-661 cost of, 709 efficiency of, 661-667 pressure drop over, 667, 671-673 Valves, cost of, 511-513 Variability of data, 743-745 ‘Variance, 743 in cost accounting, 145 in co$t estimates, 162 Velocities, economic, for flow: . ih pipes, 496,. 498 , In packed towers, 697-702 , in tray towers, 656-661, 680, 681 Venture worth (see Present worth) Venturi, frictional effects due to, 485 Venturi meters, relationships for, 534-536 Vintage-group accounts, 291 Viscosities: of gases, 872-873 of liquids, 874-875 of water, 876 Viton A, 435 Volumetric efficiency of pumps, 517 Waste disposal: Federal regulations for, 75-78 in plant location, 91-93 Wastewater-treatment plants, cost of, 811-812 Water: cooling, optimum flow rate of, 368-371 cost of, 815 for industrial process, 99 pollution abatement, 84-88 by biological treatment, 87 by chemical treatment, 86-88 use in heat exchangers, 613 Weirs in tray columns, 685 Welch’s approximation, 749~ Welding processes, 447-448 Wilcoxon’s tests, 747n. Wood as material of construction, 437 Working capital from balance sheet, 140 Working-capital investment, 157-158 Yard improvements, cost of, 175-176, 805
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