A reversible heat engine receives 25,500 Btu/hr of heat from a high-temperature reservoir at 1100 R, and produces 4.2 hp of power. What is the temperature of the low-temperature reservoir.
Given: TH = 1100 R; Q?H=25,500Btu/hr; W = 4.2 hp = 10,689Btu/hr.
What will be an ideal response?
For a heat engine, n = w/QH = 0.419
As this is a reversible heat engine, n = nmax = 1 – TC/TH = 0.419
Solving for TC = 639 R
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