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An experimental power plant at the Natural Energy

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 45P Chapter 20

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 45P

An experimental power plant at the Natural Energy Laboratory of Hawaii generates electricity from the temperature gradient of the ocean. The surface and deep-water temperatures are 27? c and 6? c respectively. (a) what is the maximum theoretical efficiency of this power plant? (b) If the powerplant is to produce 210 kW of power, at what rate must heat be extracted from the warm water? At what rate must heat be absorbed by the cold water? Assume the maximum theoretical efficiency. (c) The cold water that enters the plant leaves it at a temperature of 10? c. What must be the flow rate of cold water through the system? Give your answer in kg/h and in L/h.

Step-by-Step Solution:

Solution 45P Step 1 a) Equation for maximum theoretical efficiency is, = 1 - (T /T ) C H Where, T - Cmperature of the cold reservoir TH- Temperature of the hot reservoir TC 6 = 273 + 6 = 279K (Provided) T = 27 = 273 + 27 = 300K (Provided) H Therefore, maximum efficiency, = 1 - (279K /300K) = 1 - 0.93 = 0.07 or, = 7%

Step 2 of 3

Chapter 20, Problem 45P is Solved
Step 3 of 3

Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

University Physics was written by and is associated to the ISBN: 9780321675460. The full step-by-step solution to problem: 45P from chapter: 20 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. Since the solution to 45P from 20 chapter was answered, more than 455 students have viewed the full step-by-step answer. This full solution covers the following key subjects: Water, Cold, plant, must, rate. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. The answer to “An experimental power plant at the Natural Energy Laboratory of Hawaii generates electricity from the temperature gradient of the ocean. The surface and deep-water temperatures are 27? c and 6? c respectively. (a) what is the maximum theoretical efficiency of this power plant? (b) If the powerplant is to produce 210 kW of power, at what rate must heat be extracted from the warm water? At what rate must heat be absorbed by the cold water? Assume the maximum theoretical efficiency. (c) The cold water that enters the plant leaves it at a temperature of 10? c. What must be the flow rate of cold water through the system? Give your answer in kg/h and in L/h.” is broken down into a number of easy to follow steps, and 117 words. This textbook survival guide was created for the textbook: University Physics, edition: 13.

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