Refrigerator Troubleshooting Diagram

Refrigerator Compressor Compression Ratio

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The compression ratio is defined as the ratio of discharge pressure to suction pressure at saturated conditions, expressed in absolute terms, e.g. Pa or kPa.

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where CR is compression ratio; Pd is saturated discharge pressure, kPa; and Ps is saturated suction pressure, kPa.

The performance of a compressor is influenced by a number factors, including (Pita, 1984):

• compressor speed,
• suction pressure,
• suction temperature,
• discharge pressure, and
• type of refrigerant.

Written by sam

November 19th, 2009 at 6:25 pm

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