- C The Proposed Heat Pump System Is Powered By Electricity And Produces 5 5 Mw Of Thermal Power The Facility S Cop Co 1 (284.82 KiB) Viewed 41 times
(c) The proposed heat pump system is powered by electricity and produces 5.5 MW of thermal power. The facility s COP (Coefficient of Performance), which is an expression of the relationship between the energy of the heat pumps output and input, is 4. which means that if the input to the heat pump is 1 kWh of electricity, the output will be 4 kWh of heat A COP of 4 is a relatively high value for a heat pump, and can be achieved here because in this case, 3-4 heat pumps are linked together. The price of the heat supplied to the district heating network is 337 Tah/MWh The price of the electricity that drives the heat pump is 1.10 Tah/kWh The company works in three shifts, seven days a week. year-round, but the heat pump system is only expected to be in operation for 360 days a year. The investment in the heat pump itself is 12 million Tsh. In addition, connection to pipelines, a transformer, a building for the transformer and design work cost 3 million Tsh The lifetime of the investment is assumed to be 15 years and a discount rate is 8% per annum is used. The largest expense in the operating costs is the cost of electricity to operate the heat pump. In addition, maintenance, etc will cost 2 million Tsh per year. Calculate the annual operating expenses [4 Marks] Transcribe all deposits and withdrawals to a constant annuity over the life of the investments [3 Marks] 3 3 3 (iv) Calculate the investment's present value, based on your answer to Question 2 [5 Marke Calculate the investment's payback penod. The government has adopted a gradual phasing out of the tax in the period of three years, which will lead to lower electricity prices When the tax is fully phased out after three years, the company's electricity price will be reduced to 0.85 Tsh per kWh [5 Marks]