Calculate Motor HP and Power Delivered to Compressor with Refrigerant 134a

What is the horsepower (hp) of the electric motor?

Given that an electric motor produces 500W of electrical power.

If the efficiency from the motor to refrigerant compressor is 0.92, how much power is delivered to the compressor in watts (W)?

Given that the refrigerant used is 134a.

Answer:

1) The horsepower (hp) of the motor is 0.67 HP.

2) The power delivered to the compressor is 460W.

To calculate the horsepower (hp) of the electric motor, we need to divide the power in watts by the conversion factor of 746 W/hp. In this case, the motor produces 500W, so the hp can be calculated as 500W / 746 W/hp = 0.67 hp.

To determine the power delivered to the refrigerant compressor, we need to multiply the power produced by the motor by the efficiency. The power delivered to the compressor can be calculated as 500W * 0.92 = 460W.

Therefore, the hp of the motor is 0.67 and the power delivered to the compressor is 460W, showcasing the efficiency and capability of the electric motor in delivering power to the compressor.

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