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(Solved): the answer you gave me before was wrong i need a right solution for the problem A hospital operatin ...



the answer you gave me before was wrong i need a right solution for the problem
A hospital operating room air conditioning system is being designed to usc a fan and a cooling coil. To avoid recirculating b
A hospital operating room air conditioning system is being designed to usc a fan and a cooling coil. To avoid recirculating bacterin outside filtered air is used. During summer the air leaving the coil and supplied to the space is at . The summer design loads are sensible and latent. Ontdoor design conditions are and WB. a. Draw a diagram of the systero. b. Draw the operating cycle on the psychrometric chart provided. c. Identify each significant point, on the diagram and psychrometric chart, and note for each of these points its dry bulb and wet bulb temperature, d. Calculate the air supply rate. e. Calculate the capacity of the coil Btu/hr. f. Determine the humidity of the air leaving the operating room . Assume sea level conditions, and neglect the effects of duct heat transfer and fan air temperature rise.


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Solution

Given data:

Supplied air temperature (T1) = 55°F.
Relative humidity of supplied air (?) = 100%.
Sensible head load (SH) = 37500BTU
Latent Head load (LH) = 8800.
Room Temperature (T2) = 75°F.
Atmospheric pressure (Pa) = 14.7 psi.
Outside air dry bulb temperature (Tdb) = 94°F.
Outside air wet bulb temperature (Twb) = 75°F.
Specific heat of the air (Cp) = 0.241 BTU/lb-°F.

Part -1:

Consider the space diagram:


Calculate the cooling load required:


Hence the cooling load required is 46300 BTU/lb.
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