ShareOil temperature characterization in a direct suction scroll compressor.
Number: 1512
Author(s) : PARADA N. G. , BARCELÓ RUESCAS F., GONZÁLVEZ-MACIÁ J.
Summary
Scroll compressors are widely used on commercial and domestic heat pumps, and their main working parameters are vastly characterized and available in the literature. Nevertheless, a special constructive disposition of these compressors where suction is directly connected to the inlet of the compression mechanism and the oil sump is at the discharge conditions is not so widely characterized.
This work is focused on empirically determining the oil temperature in the sump of the compressor for a compressor with direct suction of refrigerant for a range of working conditions, including a variation of suction and discharge temperatures and compressor speed. This characterization was done in a calorimeter compressor test bench at UPV, Valencia, Spain. The refrigerant used is propane, and the oil is a PAG-type PZ46 oil. This particular compressor model is used in a commercial heat pump producing hot water for heating and domestic hot water.
The final goal will be obtaining a correlation with the proper factors in order to model the oil temperature to predict the solubility with the refrigerant and eventually obtain the refrigerant charge in the compressor. The study is engaged in a wider project consisting of implementing an upgraded charge prediction capability in a vapor compression systems simulation software. The importance of the project is related to the need to reduce the refrigerant charge used in HVAC&R systems using flammable natural refrigerants.
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Details
- Original title: Oil temperature characterization in a direct suction scroll compressor.
- Record ID : 30033628
- Languages: English
- Subject: Technology
- Source: 2024 Purdue Conferences. 27th International Compressor Engineering Conference at Purdue.
- Publication date: 2024/07/18
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Indexing
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Themes:
Compressors;
Energy efficiency, energy savings - Keywords: Oil; Temperature; Suction; Refrigerant; Propane; Test rig; Heating; Hot water; /en/search; Scroll compressor
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