Question: A combination of a heat engine driving a heat pump (see Fig. P7.86) takes waste energy at 50C as a source Qw1 to the heat

A combination of a heat engine driving a heat pump (see Fig. P7.86) takes waste energy at 50°C as a source Qw1 to the heat engine rejecting heat at 30°C. The remainder Qw2 goes into the heat pump that delivers a QH at 150°C. If the total waste energy is 5 MW find the rate of energy delivered at the high temperature.

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