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BEE Energy Sample / Model Paper 2023 : Energy : energy auditor

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Kakoli
Bureau of Energy Efficiency (BEE), New Delhi
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E Paper-4 Code: Gr e en Marks: Section - II: SHORT NUMERICAL QUESTIONS () Answver all the Two questions 2 x5 = ( ) Each question carries Five marks The operating data of Vapor Absorption L-1 Chilled water flow Specific heat of chilled water Density of water Chilled water inlet temperature Chilled water outlet Enthalpy of steam temperature Chiller is given below: 0.18 mn'/sec 4.18 kJ | kg/ K 1000 kg/m' 9 c 7 C Steam flow rate 2700 kJ / kg Condensate temperature 1 kg/sec 100 c Calculate the following: a) b) c) L-2 Refrigeration effect in TR Thermal input energy in kJ|s Coefficient of performance (COP) The fuel gas analysis of an industrial boiler The Gross Calorific Value of the fuel is 4200 revealed CO : 5O00 PPM and 100 kg of fuel. The fuel has 36 kg of CO,: 14%. Estimate the percentage loss duekCal/kg. to carbon incomplete of C to Co. per End of Section Section (i) (ii) N-1 10 combustion - II - III: LONG NUMERICAL QUESTIONS Answer all the Four questions Each question carries Twenty mnarks Marks: 4 x 20 = 80 In an engineering company, the and other To meet the compressed air is required for processes. To assess the installed. pneumatic equipment's one requirement, of The test and other reciprocating of 500 cfm is performance compressor data are given below: compressor, free air delivery test was carried out. Receiver capacity Interconnecting pipe Initial pressure in receiver Atmospheric pressure Final pressure Time taken to fill receiver Inlet air (T) Air temnperature in the temperature Motor RPM receiver (T) Motor efficiency Motor pulley diameter Compressor RPM Compressor pulley diameter Average loading time : 10 m3 : 1m3 1.0 kg/ cm a 1.0 kg/ cm a 8.5 kg/cm a : : 6 mninute : 30 C 40 C 1400 RPM 93% 300 mm 700 RPM : 600 mm 65% BUREAUOF ENERGY EFFICIENCY 2

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