Download Air Conditioning Engineering, Fifth Edition by W. P. Jones PDF

By W. P. Jones

Designed for college students engineers, the 5th version of this vintage textual content bargains with basic technology and layout ideas of air con engineering platforms. W P Jones is an said professional within the box, and he makes use of his adventure as a lecturer to provide the fabric in a logical and available demeanour, continually introducing new innovations with using labored examples. This re-creation has been absolutely up-to-date take into consideration the most recent advancements in criteria, laws and expertise. The e-book contains fresh learn on construction strength administration structures and the newest refrigerants. every one bankruptcy comprises many examples, workouts and additional examining allowing the reader to extend their wisdom via extra examine. ?·Keep updated with the most recent criteria and technology?·Put concept into perform with examples and routines plus info for extra reading?·New version comprises contemporary study on development power administration platforms and the most recent refrigerants

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4) tc It is much less true to assume that they can also be written, without sensible error, in terms of wet-bulb temperature, since the scale of wet-bulb values on the psychrometric chart is not at all linear. The assumption is, however, sometimes made for convenience, provided the values involved are not very far apart and that some inaccuracy can be tolerated in the answer. 92 for practical coil selection in the UK. In hot, humid climates more heat transfer surface is necessary and higher contact factors are common.

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. 11. C. Bull, Design and use of the new IHVE psychrometric chart, JIHVE, October 1964, 32, 268.

The percentage saturation, of course, increases. It might be thought that the increase of humidity would be such that the 'off' state, represented by the point B, would lie on the saturation curve. This is not so for the very good reason that no air washer or cooler coil is a hundred per cent efficient. It is unusual to speak of the efficiency of a cooler coil. Instead, the alternative terms, contact factor and by-pass factor, are used. 4) tc It is much less true to assume that they can also be written, without sensible error, in terms of wet-bulb temperature, since the scale of wet-bulb values on the psychrometric chart is not at all linear.

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