Experiment 1 AIM: TWO STAGE COMPRESSORS To determine the actual air flow rate, swept volume, electrical...

  

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Experiment 1 AIM: TWO STAGE COMPRESSORS To determine the actual air flow rate, swept volume, electrical horsepower, isentropic horsepower, isothermal horsepower, isentropic efficiency, isothermal efficiency and volumetric efficiency. APPARATUS: Note: Motor: Hascon 220V, 50Hz, 3HP, 2.2 KW, 8.91A, 1430RPM Air compressor: 1st stage SB-10/90 bore 65mm, stroke 44mm (twin cylinders, 90 degree phase shift) 2nd stage SA-1/36 bore 51mm, stroke 42mm. DATA SHEET Air box orifice:15 mm Atmospheric pressure, pu = 1.01325 bar Inclined manometer slope 1.5 Air box diameter = 300 mm Test No. 1 Item Motor speed 1, rpm, N1 Compressor speed 1, rpm, N2 Compressor speed 2, rpm, N3 Power input, watts Ambient temperature, T1 Stage 1 compressor outlet, T2 Stage 2 compressor inlet, T3. Stage 2 compressor outlet, T4 Water inlet, Tw1 Water outlet, Tw2 Air box manometer, mmH₂O, Ap First stage inlet, kg/cm², p1 First stage outlet, kg/cm², p2 Second stage outlet, kg/cmp3 Air Receiver, kg/cmp4 Water flow rate, l/min. 1400 704 703 1054 17.3 62.6 17.5 46.3 14.9 16.00 14 101.3 KPa 1.6 2.9 3 1.7 Test No. 2 1500 754 752 1093 17.9 76.4 18.3 50.0 15.0 16.5 15 101.3KPa 1.7 3. 3.0 1.7 Note: Motor: Hascon 220 V, 50Hz, 3 HP, 2.2kW, 8.91A, 1430 RPM... Air compressor: 15 stage SB-10/90 bore 65 mm, Stroke 44 mm (Twin cylinders, 90 degree phase shift) 2nd stage SA-1/36 bore 51 mm, Stroke 42 mm Calculate: 1. Actual air flow rate (qv). 2. Swept volume, from the size of the cylinder and stroke of the piston in stage 1 and speed. 3. Electrical horsepower (EP), by installing a wattmeter on the motor. 4. Isentropic horsepower (Isen. HP). 5. Isothermal horsepower (Iso. HP). 6. Isentropic Efficiency (Isen. Eff) 7. Isothermal efficiency (Iso Eff). 8. Volumetric efficiency (Vol Eff). 9. Give your own conclusion. Experiment 1 AIM: TWO STAGE COMPRESSORS To determine the actual air flow rate, swept volume, electrical horsepower, isentropic horsepower, isothermal horsepower, isentropic efficiency, isothermal efficiency and volumetric efficiency. APPARATUS: Note: Motor: Hascon 220V, 50Hz, 3HP, 2.2 KW, 8.91A, 1430RPM Air compressor: 1st stage SB-10/90 bore 65mm, stroke 44mm (twin cylinders, 90 degree phase shift) 2nd stage SA-1/36 bore 51mm, stroke 42mm. DATA SHEET Air box orifice:15 mm Atmospheric pressure, pu = 1.01325 bar Inclined manometer slope 1.5 Air box diameter = 300 mm Test No. 1 Item Motor speed 1, rpm, N1 Compressor speed 1, rpm, N2 Compressor speed 2, rpm, N3 Power input, watts Ambient temperature, T1 Stage 1 compressor outlet, T2 Stage 2 compressor inlet, T3. Stage 2 compressor outlet, T4 Water inlet, Tw1 Water outlet, Tw2 Air box manometer, mmH₂O, Ap First stage inlet, kg/cm², p1 First stage outlet, kg/cm², p2 Second stage outlet, kg/cmp3 Air Receiver, kg/cmp4 Water flow rate, l/min. 1400 704 703 1054 17.3 62.6 17.5 46.3 14.9 16.00 14 101.3 KPa 1.6 2.9 3 1.7 Test No. 2 1500 754 752 1093 17.9 76.4 18.3 50.0 15.0 16.5 15 101.3KPa 1.7 3. 3.0 1.7 Note: Motor: Hascon 220 V, 50Hz, 3 HP, 2.2kW, 8.91A, 1430 RPM... Air compressor: 15 stage SB-10/90 bore 65 mm, Stroke 44 mm (Twin cylinders, 90 degree phase shift) 2nd stage SA-1/36 bore 51 mm, Stroke 42 mm Calculate: 1. Actual air flow rate (qv). 2. Swept volume, from the size of the cylinder and stroke of the piston in stage 1 and speed. 3. Electrical horsepower (EP), by installing a wattmeter on the motor. 4. Isentropic horsepower (Isen. HP). 5. Isothermal horsepower (Iso. HP). 6. Isentropic Efficiency (Isen. Eff) 7. Isothermal efficiency (Iso Eff). 8. Volumetric efficiency (Vol Eff). 9. Give your own conclusion.

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