The standard design conditions for air conditioning systems established by the air conditioning heating and Refrigeration Institute are outside temperatures of blank inside temperatures of blank with humidity of blank percent

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1- An air conditioned space is maintained at DBT= 24 č and RH=50% .The out side condition is DBT=38 ċ with WBT= 27 c .The space has a sensible heat gain of 24 kW and latent heat gain of 6 kW. Use all out side air system and find :- a) the supply condition of the air if the relative humidity at the supply point is taken to be 90% . b) volume flow rate of supplied air. c) the total cooling load of the cooling coil. d) the chilled water volume flow rate if its temperature rise is 5.6č. ( answer : T,= 12.2 c , h, = 32.6 kJ/kg , Qeoi =95.6 kW , 4.06e-3 m'/s ) 2- The sensible heat gain of a given space is 50 kW and its latent load is 15 kW. The inside design condition is 26 c with 50% relative humidity. The space is air conditioned using all return air system Find by assuming 90% saturation for the supply air . a) the supply conditioned of the air air c) cooling coil load. b) volume flow rate of supplied

I need help to prepare to tomorrows exam. It needs to be shown on psychometric chart as well.

Dry air inlet temperature 23.9 (t1) Wet air inlet temperature 20.5 (t2) Dry air outlet temperature 24.3 (13) Wet air outlet temperature 23.1 (14) Inlet (A) Outlet (B) Set 2 Set 1 T [°C] Inlet (A) Outlet (B) (b) By using the psychrometric chart, fill up the table below for mass balance. Set 1 v[m/kg dry w[kg/kg dry air] Inlet (A) Outlet (B) 0.0183 0.017 [kg/kg dry air] 61 Set 2 T [°C] 68 24.2 20.8 25.4 24.5 aur] 0.86 v[m³/kg dry air m (c) By using the psychrometric chart, fill up the table below for energy balance. het [kJ/kg dry air] het [kJ/kg dry air [kg dry air/s] 0.0586 m [kg dry air/s] 6

าา 3.15.) In air conditioning unit, 71,000 cfm at 80'F dry bulb 60% th and standard atmospheric pressure, enter the unit. The air leaves the wait at 57°F dry bulb and 90% relative humidity. Calculate the following a.) Cooling capacity of the air conditioning unit, in Btu/h 6.) rate of water removal from the unit. (.) sensible heat load on the conditioner, in Btu/h di) latent heat load on the conditioning in Blu/h e.) The dew point of the air leaving the conditioner.

Heat transfer through the walls can be considered as steady under the assumption that the highest temperature setting for the oven, and the standard room temperature for the ambient. True or False True False

A conditioned space has a calculated heat loss at the design maximum heating day of 10,000 BTUs / Hr to maintain an interior temperature of 70 F. We will use a hydronic baseboard style convector to heat the space. The style we have chosen comes in standard lengths. At rated temperature and flow of hydronic heating fluid for each 1 foot of length the heater will add 750 BTUs /Hr to the room. What length of heater can just maintain the temperature on the worst day? For this example we are ignoring other sources of heat loss such as ventilation or drafts.

Hi please show working? Thankyou ! An air conditioner cools humid air  Temperature 1 =25 celcius Temperature 2 = 10 celcius  Relative humidity 1  = 70% Determine the final relative humidity (2) and calculate: 1) the energy removed  2) the water mass extracted from the air

1.Explain in detail what affects human comfort? 2.Explain with a schematic drawing, how to convert gas nature from gas phase to liquid. 3.You are asked to design a small space cooling system size 30x20x40 cm for the covid vaccine at a temperature of -20 degrees. System what kind of cooling do you recommend?