Une thousand čim of outdoor air enters a building located in Regina, Saskatchewan, Canada. The indoor air design conditions are 72 F db and 30 % RH while the outdoor air design conditions are decided to be the 99.6% value. Assuming sea level pressure, compute the latent heat loss due to the outdoor air in Btu/hr. What will be the latent heat loss in case the building is located in Riyadh? b. Compute the lost head in feet of water for 2000 gpm of chilled water flowing through 1000 ft of 8" diameter schedule 40 commercial steel pipe.

Une thousand čim of outdoor air enters a building located in Regina, Saskatchewan, Canada. The indoor air design conditions are 72 F db and 30 % RH while the outdoor air design conditions are decided to be the 99.6% value. Assuming sea level pressure, compute the latent heat loss due to the outdoor air in Btu/hr. What will be the latent heat loss in case the building is located in Riyadh? b. Compute the lost head in feet of water for 2000 gpm of chilled water flowing through 1000 ft of 8" diameter schedule 40 commercial steel pipe.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 1RQ: The standard design conditions for air-conditioning systems established by the Air-Conditioning,...

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The standard design conditions for air-conditioning systems established by the Air-Conditioning, Heating and Refrigeration Institute (AHRI) are outside temperature _____F, inside temperature ______F, with a humidityof____%.
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Problem 3: A large room contains a volume of air of Va = 11 m3 at a temperature of Ta = 55° F. It also contains a bathtub holding a volume of water of Vw = 0.51 m3 at a temperature of Tw = 111° F. Part (a) If the density of the air at Ta is ρa = 1.25 kg/m3, calculate the mass of air in the room in kilograms. Part (b) If the density of the water at Tw is ρw = 1000 kg/m3, calculate the mass of the water in the bathtub in kilograms. Part (c) Take the room and water as an isolated system. Write an equation for the equilibrium temperature of the system T in terms of ma, Ta, mw, Tw, and the specific heat capacity of the air ca and the water cw. Part (d) Calculate the final temperature of the system in kelvin, assuming a constant specific heat for the water of cw = 4180 J/kg⋅K and a constant specific heat capacity for the air of ca = 1010 J/kg⋅K. Part (e) Calculate the change in the internal energy ΔU of the room-water system in joules.
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