A small research facility in a remote polar region is maintained at a comfortabl
ID: 2100408 • Letter: A
Question
A small research facility in a remote polar region is maintained at a comfortable temperature by heaters that burn propane. The propane storage capacity of the facility is 7500 kg. If the rate of heat loss from the facility is 48 kW and the heat of combustion of propane is 52 MJ/kg, how long can the facility be continuously heated before depleting the propane? Assume that only 75 percent of the heat of combustion is utilized as useful energy.
Explanation / Answer
b
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