A 600-MW steam power plant, which is cooled by a nearby river, has a thermal efficiency of 54 percent. Determine the rate of heat transfer to the river water. Will the actual heat transfer rate be higher or lower than this value?

Following are the solution to heat transfer rate:

Work output,

Thermal efficiency,

Using the following equation, control the rate of heat supplied to the power plant:

Using the following equation, calculate the rate of heat transfer to river water:

In actuality, the rate of heat transfer to river water will be smaller than the calculated number because some heat would be lost to the surrounding.

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. Heat transfer can be higher if themal efficiency is lower.

Explanation:

The heat transfer rate to the river water is calculated by this expression:

The actual heat transfer can be higher if the steam power plant reports an thermal efficiency lower than expected.

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