This experiment tested the performance of a mini ice plant. The objectives were to determine the plant's components, heat balance, theoretical and actual coefficients of performance, and theoretical and actual rates of freezing. Materials included a pen, data sheet, calculator, timer, thermometer, scale, and refrigerant tables. The basic components were a condensing unit, agitator, defroster, brine pool, and storage. Procedures involved running the agitator, starting the compressor, recording temperatures and pressures, adding water to trays, and freezing times. Observations noted muddy brine from salt, a 5C temperature drop per hour, increasing pressures, and slow freezing from the plant being unused for years.
This experiment tested the performance of a mini ice plant. The objectives were to determine the plant's components, heat balance, theoretical and actual coefficients of performance, and theoretical and actual rates of freezing. Materials included a pen, data sheet, calculator, timer, thermometer, scale, and refrigerant tables. The basic components were a condensing unit, agitator, defroster, brine pool, and storage. Procedures involved running the agitator, starting the compressor, recording temperatures and pressures, adding water to trays, and freezing times. Observations noted muddy brine from salt, a 5C temperature drop per hour, increasing pressures, and slow freezing from the plant being unused for years.
This experiment tested the performance of a mini ice plant. The objectives were to determine the plant's components, heat balance, theoretical and actual coefficients of performance, and theoretical and actual rates of freezing. Materials included a pen, data sheet, calculator, timer, thermometer, scale, and refrigerant tables. The basic components were a condensing unit, agitator, defroster, brine pool, and storage. Procedures involved running the agitator, starting the compressor, recording temperatures and pressures, adding water to trays, and freezing times. Observations noted muddy brine from salt, a 5C temperature drop per hour, increasing pressures, and slow freezing from the plant being unused for years.
This experiment tested the performance of a mini ice plant. The objectives were to determine the plant's components, heat balance, theoretical and actual coefficients of performance, and theoretical and actual rates of freezing. Materials included a pen, data sheet, calculator, timer, thermometer, scale, and refrigerant tables. The basic components were a condensing unit, agitator, defroster, brine pool, and storage. Procedures involved running the agitator, starting the compressor, recording temperatures and pressures, adding water to trays, and freezing times. Observations noted muddy brine from salt, a 5C temperature drop per hour, increasing pressures, and slow freezing from the plant being unused for years.
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Experiment no.
1 Performance test of Mini Ice Plant
Objectives: 1. To determine the basic components of an ice plant. 2. To determine the heat balance on the laboratory model of an ice plant. 3. To determine the theoretical and actual coefficients of performance of the laboratory model of an ice plant. 4. To determine the theoretical and actual TOR of the laboratory model of an ice plant. 5. To determine the rate of freezing in the different shapes of ice molders.
1. Condensing unit 2. Agitator 3. Ice defroster 4. Brine pool 5. Ice storage
Procedure: 1. Plug in the chord to the outlet. 2. Turn on the agitator. 3. Run the agitator for 5 minutes. 4. Switch-on the compressor by using the circuit breaker. 5. Wait until the brine temperature drops to -4 degrees Celsius. 6. Record the suction pressure, discharge pressure, brine temperature, and the kwh meter reading. 7. Half fill the ice tray with water. a. Measure the temperature of the water in the tray. 8. Put the ice tray into the brine pool and record the readings after every 30 minutes until the water is perfectly frozen. 9. Record the time when each ice shape is frozen. 10. When the water is already frozen, remove the ice tray and put it in the ice defroster. 11. Remove the ice from the tray and put it into the storage.
Figures/Pictures:
Observations: 1. The salt was added to the water the water become muddy 2. The drop of temperature was 5c every 1 hr. 3. The pressure reading increases in the suction and discharge 4. The water did not freeze because the mini ice plant was not in use for many years resulting low cooling rate. Observation table: TIME HP LP BRINE ENERGY (HH-MM) (psig) (psig) TEMPERATURE METER (˚C) READING (kwh) 00:00 150 30 27 0 00:30 175 47 27 134.7 01:00 180 48 27 135.1 01:30 180 48 25 136.8 02:00 190 48.2 23 137.2 02:23 200 48. 5 22 138.9 Laboratory experiment no. 1 in ME Lab-III
