=+3-52. Under normal operating conditions a zone has a total cooling load of 120,000 Btu/hr (35 KW)

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=+3-52.

Under normal operating conditions a zone has a total cooling load of 120,000 Btu/hr (35 KW)

with a SHF of 0.8. The space is to be maintained at 74 F (23 C) db and 50% relative humidity

(RH). However, there are periods when the latent load is high and the SHF is estimated to be as low as 0.6. Assume that air enters the cooling coil at 85 F (29 C) db and 71 F (22 C) wh and the coil apparatus dew point is 48 F (9 C).

(a) Devise a system and the associated psychro-

metric processes to cover the necessary range of operation.

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Heating Ventilating And Air Conditioning Analysis And Design

ISBN: 9780471470151

6th Edition

Authors: Faye C. McQuiston, Jerald D. Parker, Jeffrey D. Spitler

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