Can you use a heat pump to provide the temperature difference to run a heat engine?
Yes, a heat engine runs on heat.
Yes, a heat pump moves heat.
No, heat is not created.
No, the heat supplied does not create a large enough temperature difference.

No,we cannot use  heat pump to provide the temperature difference to run a heat engine.

Explanation:

In a heat pump energy is transferred from the heat source to the heat sink whereas in the heat engine energy is transferred from a higher temperature level to a lower  temperature level called sink.In a heat engine the heat energy is converted into mechanical energy

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