Question

Prob. 20 (12 Points) A heat engine receives heat from a geothermal water at a rate of 20 kJ/s and rejects heat to the surroundings. The temperature of geothermal water and surroundings are 110°C and 25°C, respectively. a) Calculate the maximum efficiency of the heat engine, b) Calculate the maximum power output of the heat engine. c) Calculate the minimum heat rejection rate of the heat engine, d) Can the efficiency of the heat engine be %23?

Name: prob 20 12 points a heat engine receives heat from a geothermal water at a rate of 20 kjs and rejects heat to the surroundings the temperature of geothermal water and surroundings are 110c a 83562
Uploaded: 2021-11-02T16:47:51-08:00
Duration: 4 min
Channel: Rubeena Zulfiqar
Description: prob 20 12 points a heat engine receives heat from a geothermal water at a rate of 20 kjs and rejects heat to the surroundings the temperature of geothermal water and surroundings are 110c a 83562

          Prob. 20 (12 Points)
A heat engine receives heat from a geothermal water at a rate of 20 kJ/s and rejects heat to the surroundings. The temperature of geothermal water and surroundings are 110°C and 25°C, respectively.
a) Calculate the maximum efficiency of the heat engine,
b) Calculate the maximum power output of the heat engine.
c) Calculate the minimum heat rejection rate of the heat engine,
d) Can the efficiency of the heat engine be %23?

prob 20 12 points a heat engine receives heat from a geothermal water at a rate of 20 kjs and rejects heat to the surroundings the temperature of geothermal water and surroundings are 110c a 83562

Added by Kathleen C.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Rubeena Zulfiqar

11/02/2021

Step 1

In this problem, $T_h = 110^\circ C + 273.15 = 383.15 K$ and $T_c = 25^\circ C + 273.15 = 298.15 K$. Show more…

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Prob. 20 (12 Points) A heat engine receives heat from a geothermal water at a rate of 20 kJ/s and rejects heat to the surroundings. The temperature of geothermal water and surroundings are 110°C and 25°C, respectively. a) Calculate the maximum efficiency of the heat engine, b) Calculate the maximum power output of the heat engine. c) Calculate the minimum heat rejection rate of the heat engine, d) Can the efficiency of the heat engine be %23?