Solar renewable energy plant has 32 solar panel with 48 KW each. What is the solar KW rated output? 1,236 KW 1,516 KW (C) 1,636 KW D. none of the above
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- Explain the working principle of photovoltaic solar cell with flow diagram of conversion of a solar cell to a solar PV system.18. A waste heat recovery boler produces 1 MPa dry saturated steam from 100 'C feedwater. The boiler receives hot gases(Cp 1.0) at 4.2 kg per sec at a temperature of 950 C. After passing through the waste heat boiler, the temperature of hot gases has been reduced to 250 C. How much steam in kg is produced per hour? Note: At 1 MPa dry saturated, h 2778.1 k/kg. A 4487.8 kg B. 4847.8 kg C. 4748.8 kg D. 4887.4 kgA household has a yearly electrical energy usage of approximately 5,000kWh per year. They want a PV grid system that will produce this total amount of electrical energy at the AC switchboard every year. The average temperature of the ambient is 22 °C, and the fairt. =0.92 for the location. The inverter efficiency is 90% with a maximum cable loss of 3.5%, the module to be installed is 180w SilexSolar with manufacture tolerance of +-3% and a temperature de-rating coefficient of 0.5%. The PV panels will be installed in Melbourne facing north and tilted at 30 degree from the ground. Determine: a) The number of PV modules required. b) If the electricity demand in January for this household is double the average electricity used in a hot day, what would be the minimum requirement for the battery capacity if this household does not want to rely on the grid. c) The amount of brown coal (kg) saved if the power station has an efficiency of 30%.
- Problem An electric heater is to heat 18 kg of oil per min. from 24.5 °C to 185.5 °C. Specific heat of oil is 2.018 KJ/kg- °C.Calculate the power consumed by the heater. Ans. Problem The overall efficiency of an electric system, coal pile to lights a lamp is What fraction of a kg of coal containing 1350 W lamp for 45 minutes? 97.4694 Kw 18 %. 10250 KJ/kg must be consumed to light a Ans. 1.976 KJQuestion No. 15 A 1000 W heater is used for 1 hr every day for 30 days. Find the cost of electricity if the rate is Rs. 3/unit. Rs. 90 ORs. 30 O Rs. 70 Rs. 60A gas furnace has an output of 60,000 Btu/h. The return air temperature is 72F, and the temperature out of the furnace is 130F. Disregarding the heat the fan motor may add to the airstream, how much air is the furnace handling?
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