A summer air-conditioning shown below is required to maintain a certain room at specified conditions. The layout of the system is indicated on the next page and the specifications are listed below. System specifications: Required room temperature: 23⁰C, 50% Relative humidity Atmospheric pressure: 101 kPa Outside air conditions: 30⁰C, 80% Relative humidity Sensible heat gain: 5 kW Latent heat gain: 4 kW Temperature rise across fan: 1.5⁰C Temperature of air leaving cooler: 12⁰C Temperature of air entering room: 18⁰C
Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
A summer air-conditioning shown below is required to maintain a certain room at specified conditions. The layout of the system is indicated on the next page and the specifications are listed below.
System specifications:
Required room temperature: 23⁰C, 50% Relative humidity
Atmospheric pressure: 101 kPa
Outside air conditions: 30⁰C, 80% Relative humidity
Sensible heat gain: 5 kW
Latent heat gain: 4 kW
Temperature rise across fan: 1.5⁰C
Temperature of air leaving cooler: 12⁰C
Temperature of air entering room: 18⁰C
Apparatus dew point of cooler: 7⁰C
Draw the processes on a psychrometric chart and determine the following:
1.The ratio of mass flow rate of re-circulated air to the mass flow rate of air supplied to the room.
2.The heat removed by the cooling coil.
3.The heat supplied in the re-heating coil.
4.The cooling coil bypass factor.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 4 images
