#2 Use 4 decimal places in everything. THERMODYNAMICS SHOW COMPLETE SOLUTION

The combustion of Marks* fuel, diesel, reaches 750C, while waste heat is discharged out to the environment at 50C. He then hooked up a generator and a heat pump to the heat engine to see how much electricity it was producing. Assume that he will use the heat pump to heat his room to 25C while the outside temperature is 5C. Heat is lost at a rate of 85,000 kJ/hr in Marks* rooms. Furthermore, the heat pump receives 25% of the heat engine's power output. How much diesel (in kg) must be burnt by the heat engine to keep the temperature in Marks* room constant? Assume the heating value of the Carnot heat engine and heat pump is 22,000 BTU/1b.