A completely closed room with dimensions A m in the figure is heated by a hot water radiator. The heat emitted by the radiator is B kJ / h and the heating is by natural convection. Heat loss from the room was determined as C kJ / h. The temperature of the room is from D oC to E oC a) Calculate the time it will take [seconds]. b) If the temperature of the water entering the heating system is F oC return G oC, the flow rate of the hot water circulating in the system is [kg / h]. Note: Air is the Perfect gas. Room pressure (100 kPa) does not change
A completely closed room with dimensions A m in the figure is heated by a hot water radiator. The heat emitted by the radiator is B kJ / h and the heating is by natural convection. Heat loss from the room was determined as C kJ / h. The temperature of the room is from D oC to E oC a) Calculate the time it will take [seconds]. b) If the temperature of the water entering the heating system is F oC return G oC, the flow rate of the hot water circulating in the system is [kg / h]. Note: Air is the Perfect gas. Room pressure (100 kPa) does not change
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
Chapter1: Heat, Temperature, And Pressure
Section: Chapter Questions
Problem 6RQ: One British thermal unit will raise the temperature of _____ 1b of water _____F.
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A completely closed room with dimensions A m in the figure is heated by a hot water radiator. The heat emitted by the radiator is B kJ / h and the heating is by natural convection. Heat loss from the room was determined as C kJ / h. The temperature of the room is from D oC to E oC
a) Calculate the time it will take [seconds].
b) If the temperature of the water entering the heating system is F oC return G oC,
the flow rate of the hot water circulating in the system is [kg / h].
Note: Air is the Perfect gas. Room pressure (100 kPa) does not change
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