The BTU capacity of a 1/12 HP compressor depends on several factors, including:
- Evaporator Temperature
- Type of Refrigerant
- Type and Efficiency of the Compressor
- Compressor Motor Speed
- Condensation Temperature
- Condenser Cooling Efficiency
- Subcooling Achieved in the Condenser
- Superheating in the Evaporator
BTU Capacity of a 1/12 HP Compressor Using R134a Refrigerant
Considering only the evaporator temperature, the following table provides approximate cooling capacities for R134a under specific conditions:
- Condensation Temperature: 35°C (95°F)
- Superheating: 5°C
- Subcooling: 5°C
| Evaporator Temp (°C) | -30°C | -25°C | -20°C | -15°C | -10°C | -5°C | 0°C | 5°C | 10°C | 15°C |
|---|---|---|---|---|---|---|---|---|---|---|
| Cooling Capacity (BTU/h) | 113.38 | 176.5 | 255.41 | 351.16 | 468.83 | 607.5 | 770.22 | 959.07 | 1176 | 1423 |
For example, a 1/12 HP compressor operating at an evaporator temperature of -20°C with R134a refrigerant achieves a cooling capacity of approximately 255.41 BTU/h.
