Document m70pVbY6KEMKQJ248qmXG5Rk

, Chapter 41 Air Duct Design. New tables givjBgyu^friar equivalents of rectangular ducts' are based^ upon formulas developed ^ latest*ASHVB research. The treatment of losses occurring in systems has been enlarged and includes a detailed discussion of losses due to area changes. Under the subject of sizing ducts, three methods are outlined and examples are included. ' Chapter 46--Industrial Exhaust Systems.' Numerous revisions in fundamental design data have been added to keep this chapter in agreement with the latest knowledge on the subject. '; ^ [Chapter 7--Drying Systems. New illustrations of dryers and new diagrams of drying operations are included in' the rewritten and enlarged chapter. Problems in drying have been amplified. An example is given in the solution of a typical drying problem and the . selection of a belt-type of. dryer. Chapter 48--Transportation Air. Conditioning. This chapter has been rewritten in order to present current practice , in design and control of heating, cooling and air conditioning systems in modem railway passenger cars, street cars, trolley coaches, passenger buses and aircraft. Special requirements for various types of planes are discussed. < Chapter 52--Codes and Standards.- - The record of codes and standards applicable to heat- ing, ventilating and air conditioning has been reviewed, and references to the latest editions * of the codes have been brought up to date. In addition, a reference column indicates where, the codes may be obtained, and a list of addresses of the sponsoring organizations hhs been added. * . The cross index of the Technical Data Section has been enlarged to facilitate reference to the technical text. .The high standard established by The Guide has been made possihle by the contributions of many members, organizations and individual authorities in the past, as well as those who have devoted considerable time and effort to the improvement of the present edition. It is a pleasure to acknowledge this valuable service of the following contributors to the 27th edition: D. K. Adams C. M. Ashley H. S. Bean Merrill Bernard ' ' A. D. Brandt W. G. Bbombacher S. D. Browne L. F. Collins O. C. Davidson H. E. Degler R. S. Dill E.: F. Do Bois M. R. Eastin K. H. Flint A. A. Giannini N. A. Hall H. B. Hedges W. E. Heibel F. K. Hick W. O. Huebner E. F. Hyde W. C. Jacobs R. C. Jordan J. M. Kane A. J. Keating J. S. Locke J. W. Miller . R. A. Miller M. M-. Montgomery H. B. Nottage H. N. OSTBORG B. P. Postman F. J. Reed R. W. Roose F. B. Rowley H. J. Ryan B. R. Small L. A. Stevens J. P. Stewart R. P. Warren W. E. Zieber - The reader's attention is directed to the Catalog Data Section which provides concise' information on the up-to-date products of 249 manufacturers. A cross index of manufactured products facilitates the finding of sources of supply for equipment needed in heating, ventilat ing and air conditioning installations. The 1949 edition of The Guide is presented with the hope, that-the many improvements incorporated will make this volume increasingly valuable to the manufacturer, student, teacher and practicing engineer. A. B. Algren R. L. Byers R. P. Cook GUIDE PUBLICATION COMMITTEE R. C. Cross, Chairman Nathaniel Glickman W. M. Wallace, II B. H. Jennings W. N. Witheridge H. R. Ltmbacber Cyril Tasker, Ex-officio Carl H. Funk, Technical Secretary i' ,1 .{ r ii CONTENTS Title Page...................................................................................... Preface......................................................................................... Code of Ethics for Engineers.............................................. Index to Technical Data....................................................... SECTION I. . PRINCIPLES Chapter 1. Terminology............................................................................................. 2. Abbreviations and Symbols....... ......... .......................... ~....................... 3. Thermodynamics............ 4. Fluid Flow.................................... ........................................................... 5. Fundamentals of Heat Transfer........................ .................................... 6. Heat Transmission Coefficients of. Building Materials.......................-. 7. Performance pf Air Heating and Cooling. Coils. S. Air Leakage...................................... ............... ............... ^........... . 9. Natural Ventilation............ ^ ...... -- . ' - ......... ............. 10. Air Contaminants................ .................. ..................................... 11. Instruments and Measurements.................. 1 11 3 ` 75 101 115 .151 161 1 179 193 SECTION II. HUMAN REACTION TO ATMOSPHERIC ENVIRONMENT Chapter 12. Physiological Principles.;.. 213 13. Air Conditioning in the Prevention and Treatment of Disease.......... 233 SECTION III. HEATING AND COOLING LOADS : Chapter 14. Heating Load........................................................................................... ^49 15. Cooling Load........................ .................................. ....'........................ : 271 SECTION IV. ' Chapter 16. 17. 18. 19. 20. COMBUSTION AND CONSUMPTION. OF FUELS Fuels and Combustion.'. .......................................... `: 825 Automatic Fuel Burning Equipment.!....................... 349 Heating Boilers, Furnaces, Space Heaters............................................ 373 Chimneys and Draft Calculations................v*. ... ........... .............. 399 Estimating Fuel Consumption for Space Heating... :......................... 417 SECTION V. HEATING SYSTEMS AND EQUIPMENT Chapter 21. Gravity Warm Air Systems....... ........ .... ............................................... 22. Mechanical Warm Air Systems.............. ................................ :............ 23. Steam Heating Systems and Piping............ ................ .. 24. Hot Water Heating Systems and Piping............................................... 25. Radiators, Convectors, Coils.................................................................. 26. Unit Heaters, Unit Ventilators, Unit Humidifiers..:.......................... 27. Pipe, Fittings, Welding....................... ............................................ 28. Pipe Insulation.......................................................... .......................... 29. District Heating.......... ........ ..................... ........................................ 30. Electric Heating........................... _............................. ......................... 31. Panel Heating and Radiant Heating.. ............ .......... ............... 32. Fans............................................................... ....................... ............... S3. Air Cleaning Devices. . ..................... ................................................... 34. Automatic Control........................... .............................. ........................ 35. Motors and Motor Controls............................... .................................... 433 443 461 503 521 545 561 579 595 607 615 631 647 663 677 SECTION VI. AIR CONDITIONING Chapter,36. " Unit Air Conditioners, Unit Air Coolers....... ................. * $7. Spray Apparatus................. . ` .............. .................. 38. Dehumidification by Sorbent Materials........ ............... 39. Refrigeration..................... ............................................................. 40. Air Distribution................................. ........................... ............ 41. Air Duct Design......................... ................................................... 42. Sound Control....................... ...........................:.............................. 43. Central Systems for Air Conditioning....... ....................... 44. Owning and Operating Costs........................................................ 697 709 735 745 783 807 837 857 878 SECTION VII. SPECIAL APPLICATIONS Chapter 45. Industrial Air Conditioning............. .......................................... 46. Industrial Exhaust Systems.................... ................................... 47. Drying Systems........... .. ........................................................ 48. Transportation Air Conditioning.*......... 1............................ 49. Marine Heating, Ventilation, Air Conditioning... ----- 50. Water Services.......................................................................... ; 51. Corrosion and Water Formed Deposits, Causes and Prevention 885 895 909 927 937 947 965 SECTION Vni INSTALLATION AND TESTING CODES Chapter 52. Codes and Standards................................................. Catalog Data Section........................................................................ Index to Advertisers........................................... ....................... Index to Modern Equipment.......................................................... Manufacturers' Catalog Data................... '........................... .... 987 .... *993 .... 995 iooi 1025-1384 /*