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A power plant uses 365 GJ/hr of energy from a boiler and extracts 18 GJ/hr as work from a turbine and rejects the remaining energy to a large cold resevoir of air (the atmosphere). What is the rate of heat rejection to the atmosphere for this plant? Give your answer in GJ/hr

Respuesta :

Answer:

The rate of heat rejection will be 347 GJ/hr

Explanation:

We have given that power plant uses energy of 365 GJ/hr

So energy uses [tex]Q_B=365GJ/hr[/tex]

Work done from turbine [tex]W_T=18GJ/hr[/tex]

We have to find the rate of heat rejection to the atmosphere [tex]Q_C[/tex]

We know that [tex]Q_B=W_T+Q_C[/tex]

[tex]365=18+Q_C[/tex]

[tex]Q_C=347GJ/hr[/tex]

So the rate of heat rejection will be 347 GJ/hr

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