Estimating the BTU capacity of a 1/5 HP compressor depends on the refrigerant used in the system and the operating temperature of the evaporator coil within the refrigeration cycle.
1/5 HP to BTU:
For a 1/5 HP compressor, the following cooling capacities in BTU per hour can be averaged based on the evaporator coil temperature and R134a refrigerant:
Evaporator Temp (°C) | -35°C | -30°C | -25°C | -20°C | -15°C | -10°C |
---|---|---|---|---|---|---|
Cooling Capacity (BTU/h) | 342.58 | 488.34 | 646.75 | 831.55 | 1056.50 | 1335.34 |
From the table, a 1/5 HP compressor operating at an evaporator temperature of -10°C with R134a refrigerant achieves a cooling capacity of approximately 1335.34 BTU/h.
Factors Affecting Cooling Capacity:
The cooling capacity can vary based on the following working conditions:
- Type and Efficiency of the Compressor
- Frequency (Hertz) or Speed of the Compressor Motor
- Ambient Temperature
- Cooling Mechanism of the Condenser Coil (natural or forced convection)
- Subcooling Achieved in the Condenser
- Superheating of the Refrigerant at the Evaporator Outlet
Table Reference Conditions:
The above table is based on the following conditions:
- Superheating: 5°C at the evaporator outlet
- Subcooling: 5°C at the condenser outlet
- Ambient Temperature: 35°C
If any of these reference conditions change, the cooling capacity of the 1/5 HP compressor will also differ.