By W. P. Jones
Designed for college students engineers, the 5th variation of this vintage textual content bargains with primary technology and layout ideas of air con engineering structures. W P Jones is an stated specialist within the box, and he makes use of his event as a lecturer to provide the fabric in a logical and available demeanour, constantly introducing new options with using labored examples. This new version has been absolutely up to date take into consideration the most recent advancements in criteria, laws and know-how. The ebook contains contemporary learn on development strength administration platforms and the newest refrigerants. every one bankruptcy comprises many examples, routines and extra interpreting permitting the reader to extend their wisdom via extra study. ?·Keep up to date with the newest criteria and technology?·Put concept into perform with examples and routines plus details for additional reading?·New version contains fresh learn on construction strength administration structures and the most recent refrigerants
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Extra info for Air Conditioning Engineering, Fifth Edition
Gratch, Low-pressure properties of water from -160 to 212F. Trans. ASHVE, 1946, 52, 95-122. 7. P. G. Lawrence, New psychrometric data for air, National College for Heating, Ventilating, Refrigeration and Fan Engineering, Technical Memorandum No. 11. 8. B. H. Cole, Engineering Thermodynamics, Edward Arnold (Publishers) Ltd, 1961. 9. G. Wyllie and T. Lalas, The WMO Psychrometer, Tech. Paper, CSIRO, Division of Applied Physics, Australia, 1981. 10. NACA, Standard atmosphere~tables and data for altitudes to 65,000 feet, NACA Report 1235: 66, Washington DC, 1955.
93 kJ kg -1. 4. 7 kPa barometric pressure. Use CIBSE tables where necessary to determine saturation vapour pressure. (b) Calculate its enthalpy. 69 kJ per kg dry air. 5. (a) Distinguish between saturation vapour pressure and the vapour pressure of moist air at an unsaturated state. (b) Illustrate relative humidity by means of a p - V diagram for steam. (c) What happens if air at an unsaturated state is cooled to a temperature below its dew point? 5~ wet-bulb (sling). You may use the CIBSE tables of psychrometric data only to determine saturation vapour pressures.
This term is in use for both coils and washers but, in the case of cooler coils alone, tc is also sometimes termed the mean coil surface temperature. The justification for this latter terminology is offered in chapter 10. For purposes of carrying out air conditioning calculations, it is sufficient to know the B A A ~ Airflow v 'On' state Cooler @ J 7" 'Off' state "- 7 Air l coil B =" Airflow t washer ..... ha hc~ l hb I I" C " I I t~ tb t~ I t~ I Fig. 4 Cooling and dehumidification by a cooler coil or an air washer.
Air Conditioning Engineering, Fifth Edition by W. P. Jones