Question 1: An air cooling system is to be used to cool a storage facility. The facility is to be maintained at 10°C at all times. It is estimated that the facility is absorbing heat at a rate of 100 MJ/hr when the outside temperature is 35°C. a. Draw the system that includes the facility and a cooling unit. b. Write the energy balance for the storage facility and determine Wnet, Qn and Qout- c. Under this condition, determine the minimum power required to drive the cooling system and calculate cooling capacity (ton of refrigeration) and SEER rating. d. What is an additional information that you need in order to calculate the actual power required? Give an example of calculation.

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
Chapter50: Commercial, Packaged Rooftop, Variable Refrigerant Flow, And Variable Air Volume Systems
Section: Chapter Questions
Problem 22RQ: Variable refrigerant flow systems sense the ______and _____of the refrigerant to determine the...
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Question 1:
An air cooling system is to be used to cool a storage facility. The facility is to
be maintained at 10°C at all times. It is estimated that the facility is absorbing
heat at a rate of 100 MJ/hr when the outside temperature is 35°C.
a. Draw the system that includes the facility and a cooling unit.
b. Write the energy balance for the storage facility and determine Wnet,
Qin and Qout-
c. Under this condition, determine the minimum power required to drive
the cooling system and calculate cooling capacity (ton of refrigeration)
and SEER rating.
d. What is an additional information that you need in order to calculate the
actual power required? Give an example of calculation.
Transcribed Image Text:Question 1: An air cooling system is to be used to cool a storage facility. The facility is to be maintained at 10°C at all times. It is estimated that the facility is absorbing heat at a rate of 100 MJ/hr when the outside temperature is 35°C. a. Draw the system that includes the facility and a cooling unit. b. Write the energy balance for the storage facility and determine Wnet, Qin and Qout- c. Under this condition, determine the minimum power required to drive the cooling system and calculate cooling capacity (ton of refrigeration) and SEER rating. d. What is an additional information that you need in order to calculate the actual power required? Give an example of calculation.
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