Q3) Three methods of supplying a 100 000 MJ workload and a 300 000 MJ heat...

Q3) Three methods of supplying a 100 000 MJ workload and a 300 000 MJ heat load to a new shopping mall are to be compared. Work in the form of electricity is available from the National grid at 5c per MJ and heat in the form of hydr-carbon fuel is available at a cost of 2 cper MJ

The three methods are,

Electricity purchased for both Heat load and work load,
Using a 25% efficient fuel burning heat engine to supply work and a fuel fired furnace to supply the heat load.
Using a 20% efficient fuel burning heat engine.to supply the work load and using heat rejected by the heat engine to supply the heat load.

Determine the most economical method of supplying the requirements of the Mall.

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Expert Solution

samet mamat answered 1 year ago

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