Evaluate the feasibility to replace a conventional old boiler with a Micro-CHP unit to provide the heat and electricity demand of a household. The average amount of energy consumed per year and the energy prices paid are summarised in the Table 1 Table1: Household Energy Information Gas price Electricity price Boiler maintenance cost Gas Consumption [kWh] 8 x the first four digits of your student ID og w17027530, would give 13,616 kWh Electricity Consumption [kWh] 2 x the first four digits of your student ID og. w17027530, would give 3,404 kWh 0.04/kWh 0.09/kWh 120 / year The micro-CHP unit operating conditions are shown in Table 2. Table 2: Micro-CHP unit Information Electrical Output Electricity Efficiency Thermal Efficiency [%] Wel Capital Cost the first two digits of 909 minus the cont digit of your studenti student 10 ... w17027930 a w 17027530 would give 5,000 would give 178 190-0) - 90% Maintenance Cost Operating Life 900 0.03 /kWe 100,000 hours The energy company would buy any excess of electricity generated by the micro-CHP system, which is connected in parallel with the grid, at 0.06/kWh. a) What are the minimum daily operating hours of the micro-CHP unit to cover the heating demand? Do you think that increase the number of hours is a good option? [5 marks] b) Using a simple payback period method, determine whether the owner could recoup the investment before disposing off the micro-CHP unit at the end of its operating lifetime. [15 marks] c) Please explain briefly why the building (household) is or not suitable for the installation of a CHP system. [5 marks] Evaluate the feasibility to replace a conventional old boiler with a Micro-CHP unit to provide the heat and electricity demand of a household. The average amount of energy consumed per year and the energy prices paid are summarised in the Table 1 Table1: Household Energy Information Gas price Electricity price Boiler maintenance cost Gas Consumption [kWh] 8 x the first four digits of your student ID og w17027530, would give 13,616 kWh Electricity Consumption [kWh] 2 x the first four digits of your student ID og. w17027530, would give 3,404 kWh 0.04/kWh 0.09/kWh 120 / year The micro-CHP unit operating conditions are shown in Table 2. Table 2: Micro-CHP unit Information Electrical Output Electricity Efficiency Thermal Efficiency [%] Wel Capital Cost the first two digits of 909 minus the cont digit of your studenti student 10 ... w17027930 a w 17027530 would give 5,000 would give 178 190-0) - 90% Maintenance Cost Operating Life 900 0.03 /kWe 100,000 hours The energy company would buy any excess of electricity generated by the micro-CHP system, which is connected in parallel with the grid, at 0.06/kWh. a) What are the minimum daily operating hours of the micro-CHP unit to cover the heating demand? Do you think that increase the number of hours is a good option? [5 marks] b) Using a simple payback period method, determine whether the owner could recoup the investment before disposing off the micro-CHP unit at the end of its operating lifetime. [15 marks] c) Please explain briefly why the building (household) is or not suitable for the installation of a CHP system. [5 marks]