Two reversible heat engines operate in series between a source at 527 and a sink at 17C.
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Question:
Two reversible heat engines operate in series between a source at 527℃ and a sink at 17°C. If the engines have equal efficiencies and the first rejects 400 kJ to the second. Calculate:
(i) The temperature at which heat is supplied to the second engine; (ii) The heat taken from the source; (iii) The work done by each engine. Assume that each engine operates on the Carnot cycle.
Try to estimate the exergy value of 1kJ sunlight at the earth's surface temperature of 300K. It is known that sunlight comes from the surface of the sun with a temperature of 5700K.
Related Book For
South-Western Federal Taxation 2020 Comprehensive
ISBN: 9780357109144
43rd Edition
Authors: David M. Maloney, William A. Raabe, James C. Young, Annette Nellen, William H. Hoffman
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