The Temperature Measurement for Rotary Compressor with Oil Injection

As refrigeration compressor manufacturers introduce machineswith improved efficiencies there is a need for updatingperformance data.The compressor performance data which is published should bea true representation of the actual compressor performance,historically this has resulted in lengthy test programmes for thecompressor manufacturer. A system is required which can accuratelyproduce performance data from a manageable number of tests.As a result of analysing the behaviour of reciprocatingrefrigeration compressors, relationships become apparent whichcould reasonably be expected to form the basis of a technique whichwill economically generate ,accurate performance data over the fullmatrix of operating conditions.The basis of possible techniques will be described andjustified by reference to the principles of operation ofreciprocating compressors. INTRODUCTIONSpecifiers of refrigeration equipment are continually requiredto select compressors which best match the needs of a specificsystem. When considering packaged equipment, the incorrectselection of a compressor will result in additional developmenttime and expense.The existing techniques for providing performance data varyfrom one compressor manufacturer to another. Although tests may becarried out to the same procedure on the same machine by two testhouses it is highly likely that the data sets generated will have