1. ENTC-370PROF. ALVARADO1 THERMODYNAMICS LAB: EES- Refrigeration Cycle & Internal Combustion Engine ENTC - 370

2. PROF. ALVARADO2 Ideal Refrigeration Cycle

3. ENTC-370PROF. ALVARADO3 Evaporator, Throttle Valve, Condenser

4. 4 Problem 1 Refrigerant 134-a enters the compressor of a refrigerator at 180 kPa and -5 °C at a rate of 0.4 m 3 /min and is compressed isentropically to 850 kPa. The refrigerant enters the throttling valve at 800 kPa and 30 °C and leaves the evaporator as saturated vapor at -12 °C. Note: Need to determine mass flow rate. Determine: Power input to the compressor The rate of heat removal from the refrigerated space Plot the rate of heat removal against compressor power for flow rates varying from 0.2 m 3 /min to 1 m 3 /min under inlet pressures 100,150 and 200 Kpa. Using EES, plot the P-h diagram for flow rate of 0.4 m 3 /min.

5. Internal Combustion Engine ENTC-370PROF. ALVARADO5

6. Ideal Cycle for Gasoline Engine (Otto Cycle) ENTC-370PROF. ALVARADO6