- T Q Experiment 2 Split Type Air Conditioner System 1 Aim Demonstration Of The Basic Operations Of A Split Type Room Air 1 (407.41 KiB) Viewed 28 times
Air out I (Ts 9 1 = Compressor 2 = Condenser with fan 3 = Filter/drier 4 = Rotameter (optional) 5 = Expansion valve 6 = Evaporator with fan 7 = Filter Temperature controller fo 8 9 Remote control 8 Figure 2. Schematic diagram of basic air conditioner system I Identification Air in (PH (Optional) 4 Wi T₁ = Evaporator outlet temperature T₂ = Condenser inlet temperature T3 = Condenser outlet temperature T4 = Evaporator inlet temperature Cooled compartment temperature T5 xL
3. TECHNICAL DATA 3.1.1 Air split type: 2.5 kW (approx. 9,000 BTU) 3.1.2 Compressor type: Rotary 3.1.3 Refrigerant: R-22 3.1.4 Evaporator air flow rate: 450 m³/approx. 3.1.5 Fan coil air flow rate: 1,500 m³/hr. approx. 3.1.6 Measuring instruments - Pressure gauges: 2 each at compressor inlet and exit. - Temperature sensors: 5 each at compressor inlet and exit, condenser exit,after expansion valve, and air condition outlet air. - Temperature indicator: 1ea with a selector switch. 3.1.7 Require power: 800 W (approx.) 3.1.8 Power supply: 220 V 1Ph 50Hz. 4. PROCEDURE 4.1 Be sure that the electrical power is supplied to the apparatus. 4.2 The power supply switch is turned on and the temperature remotecontroller is set to a required room air temperature, 16 °C, say. 4.3 The apparatus is let to running until the steady condition is reached (2hours minimum). 4.4 The high-side and low-side pressures and all the temperature are thenrecorded. 4.5 Repeat steps 4.2-4.4 two or three times to make sure that all datacollected is the same. 4.6 Use the average of the results obtained from the experimental data toperform your calculations. (63 X
5. EXPERIMENTAL DATA DATA SHEET Room PH temp, (°C) 16 16 16 (kPa) 10 10 7.5 PL (kPa) 3.9 4 4.9 T₁(°C) T₂(°C) T3(°C) T4(°C) T5 (°C) 4.2 5.2 4.2 51.8 48.4 30 30.1 48.2 30.1 9.5 6.3 6.2 6.8 7.5 7.0 THT3701 63 xL
6. CALCULATION 6.1 Plot the experimental data on a p-h diagram (of R-22) to obtain the refrigeration cycle. THT3701 6.2 From the p-h diagram, determine the enthalpy values and hence calculate: (a) The refrigeration effect, (b) The compressor work, (c) The heat rejected at condenser, and (d) The coefficient of performance. 7. CONCLUSIONS 63 xL