   Chapter 12, Problem 45P

Chapter
Section
Textbook Problem

A certain nuclear power plant has an electrical power output of 435 MW. The rate at which energy must be supplied to the plant is 1 420 MW. (a) What is the thermal efficiency of the power plant? (b) At what rate is thermal energy expelled by the plant?

(a)

To determine
The thermal efficiency of the power plant.

Explanation

Given Info:

The electrical power output of nuclear power plant is 435MW .

The energy supplied to the plant is 1420MW .

Consider the nuclear power plant as a heat engine,

Formula to calculate the thermal efficiency is,

e=W|Qh|

• W is the electrical power output of nuclear power plant
• |Qh| is the energy supplied to the plant

Substitute 435

(b)

To determine
the rate at which the thermal energy is expelled from the plant.

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