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Hot outside air and recirculated air from the inside of the car are mixed, pass through a filter, and are then blown by a fan through the evaporator coil where the air is cooled as the fluid inside the refrigeration system evaporates. The cooled air is then supplied to the car interior to maintain the inside temperature at the desired level, 20° The passenger compartment of the car has dimensions 2m long, 1.5m wide, and 1m high. The overall heat transfer coefficients, radial and additional heat fluxes are presented in below. Place Overall Heat Transfer Coefficient 3.66 (W/m^2)/K 6.66 (W/m^2)/K No need to calculate No need to calculate Heat Flux TO BE CALCULATED TO BE CALCULATED Windows Car Body Solar Irradiation Thermal loads per person The transmissivity of window glass to solar radiation is 0.76 and the absorptivity of the car interior is 0.3. The window glass area is 40% of the total compartment surface There is a maximum of two people in the car at any given time. Estimate the maximum air-conditioning load in kW (maximum heat transfer rate from the air in the air- conditioning evaporator heat exchanger) the air conditioning unit must provide. Please clearly state your assumptions and the reasons behind the assumptions. Heat Transfer Rate 566 W/m^2 No need to calculate TO BE CALCULATED TO BE CALCULATED TO BE CALCULATED 366 W

Hot outside air and recirculated air from the inside of the car are mixed, pass through a filter, and are then blown by a fan through the evaporator coil where the air is cooled as the fluid inside the refrigeration system evaporates. The cooled air is then supplied to the car interior to maintain the inside temperature at the desired level, 20° The passenger compartment of the car has dimensions 2m long, 1.5m wide, and 1m high. The overall heat transfer coefficients, radial and additional heat fluxes are presented in below. Place Overall Heat Transfer Coefficient 3.66 (W/m^2)/K 6.66 (W/m^2)/K No need to calculate No need to calculate Heat Flux TO BE CALCULATED TO BE CALCULATED Windows Car Body Solar Irradiation Thermal loads per person The transmissivity of window glass to solar radiation is 0.76 and the absorptivity of the car interior is 0.3. The window glass area is 40% of the total compartment surface There is a maximum of two people in the car at any given time. Estimate the maximum air-conditioning load in kW (maximum heat transfer rate from the air in the air- conditioning evaporator heat exchanger) the air conditioning unit must provide. Please clearly state your assumptions and the reasons behind the assumptions. Heat Transfer Rate 566 W/m^2 No need to calculate TO BE CALCULATED TO BE CALCULATED TO BE CALCULATED 366 W

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter6: Forced Convection Over Exterior Surfaces
Section: Chapter Questions
Problem 6.53P
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Hot outside air and recirculated air from the inside of the car are mixed, pass through a filter, and are then blown by a fan through the evaporator coil where the air is cooled as the fluid inside the refrigeration system evaporates. The cooled air is then supplied to the car interior to maintain the inside temperature at the desired level, 20⁰ The passenger compartment of the car has dimensions 2m long, 1.5m wide, and 1m high. The overall heat transfer coefficients, radial and additional heat fluxes are presented in below. Place Windows Overall Heat Transfer Coefficient 3.66 (W/m^2)/K 6.66 (W/m^2)/K No need to calculate No need to calculate Heat Flux TO BE CALCULATED TO BE CALCULATED Heat Transfer Rate Car Body Solar Irradiation Thermal loads per person The transmissivity of window glass to solar radiation is 0.76 and the absorptivity of the car interior is 0.3. The window glass area is 40% of the total compartment surface There is a maximum of two people in the car at any given time. Estimate the maximum air-conditioning load in kW (maximum heat transfer rate from the air in the air- conditioning evaporator heat exchanger) the air conditioning unit must provide. Please clearly state your assumptions and the reasons behind the assumptions. 566 W/m^2 No need to calculate TO BE CALCULATED TO BE CALCULATED TO BE CALCULATED 366 W
Transcribed Image Text:Hot outside air and recirculated air from the inside of the car are mixed, pass through a filter, and are then blown by a fan through the evaporator coil where the air is cooled as the fluid inside the refrigeration system evaporates. The cooled air is then supplied to the car interior to maintain the inside temperature at the desired level, 20⁰ The passenger compartment of the car has dimensions 2m long, 1.5m wide, and 1m high. The overall heat transfer coefficients, radial and additional heat fluxes are presented in below. Place Windows Overall Heat Transfer Coefficient 3.66 (W/m^2)/K 6.66 (W/m^2)/K No need to calculate No need to calculate Heat Flux TO BE CALCULATED TO BE CALCULATED Heat Transfer Rate Car Body Solar Irradiation Thermal loads per person The transmissivity of window glass to solar radiation is 0.76 and the absorptivity of the car interior is 0.3. The window glass area is 40% of the total compartment surface There is a maximum of two people in the car at any given time. Estimate the maximum air-conditioning load in kW (maximum heat transfer rate from the air in the air- conditioning evaporator heat exchanger) the air conditioning unit must provide. Please clearly state your assumptions and the reasons behind the assumptions. 566 W/m^2 No need to calculate TO BE CALCULATED TO BE CALCULATED TO BE CALCULATED 366 W
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