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Unformatted text preview: Problem Statement: An ideal absorption refrigerator receives heat from a solar collector at a rate of 5.51 800 kPa and 200 kPa and provide 10 tons of refrigeration. 0.01 20 10 1.00 kg/s. The environment is at an average of 15-18.85 (b) Area of solar panel required Compressor equivalent Schematic: Physical Laws: 0.23 per day Properties: 10 tons = 120000 Btu/hr = 35.169 kW 4.200 kJ/kg*K 1.006 kJ/kg*K kWH/m 2 *day (solar panel insolation rate in Jefferson Count The NH 3 system is designed to operate between The PUMP is supplied by a photovoltaic cell embedded in the solar panel which supplies kW. The Q COOL can be provided by a river at o C and heats by o C after going through the absorber at o C and the refrigerated space is to be maintained at o C. Determine: (a) COP of NH 3 system and total system (c ) Required rate of air flow for the NH 3 Condenser Q GEN = kW/m 2 C = Q GEN- Q COOL- PUMP Q L = Cp H2O = Cp AIR = 1 2 Absorber Expansion valve QH Q L 1 2 s 3 4 s T W c...
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- Spring '09