ShareDesign of oil-free turbocompressors for a two-stage industrial heat pump under variable operating conditions.
Number: pap.1088
Author(s) : JAVED A., ARPAGAUS C., BERTSCH S., et al.
Summary
A pair of mechanically driven small-scale turbocompressors running on gas lubricated bearings have been designed for a two-stage heat pump application functioning under variable operating conditions. Novelty in the present two-stage heat pump system lies in the application of oil-free turbocompressor technology and the introduction of unused secondary heat from various sources. Managing the operational deviations and the secondary heat during off-design heat pump operation is challenging for the turbocompressors. The turbocompressors can potentially exceed their operating range defined by the surge and choke margins, and the maximum rotational speed limit set by the structural and rotordynamic considerations. A wide operating range is, therefore, a prerequisite design condition for the turbocompressors. The present paper will guide the readers through different stages of the design process of such turbocompressors subjected to various operational and design constraints. Moreover, a stochastic evaluation on the influence of variable operating conditions on the heat pump off-design performance will be detailed.
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Details
- Original title: Design of oil-free turbocompressors for a two-stage industrial heat pump under variable operating conditions.
- Record ID : 30019593
- Languages: English
- Source: 2016 Purdue Conferences. 23rd International Compressor Engineering Conference at Purdue.
- Publication date: 2016/07/11
Links
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Indexing
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Themes:
Heat pumps techniques;
Compressors - Keywords: Turbine; Design; Heat pump; Multistage system; Oil free compressor; Compressor
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Two-stage heat pump using oil-free turbocompres...
- Author(s) : ARPAGAUS C., BERTSCH S. S., JAVED A., et al.
- Date : 2016/07/11
- Languages : English
- Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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Development of a fuel-gas compressor or micro-g...
- Author(s) : NISHIKAWA T., NISHIKAWA H., IGARASHI K., et al.
- Date : 2002/12/05
- Languages : Japanese
- Source: The International Symposium on HCFC Alternative Refrigerants and Environmental Technology 2002: Latest technology for Energy Conservation, Refrigerants and Recycling on Air-Conditioning and Refrigeration Equipment for the 21st century. Proceedings.
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High-speed low power radial turbo compressor fo...
- Author(s) : SCHIFFMANN J., FAVRAT D.
- Date : 2006/07/17
- Languages : English
- Source: 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
- Formats : PDF
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Community heat pump systems utilizing oil-free ...
- Author(s) : TURNER D., ZIVIANI D.
- Date : 2021/05/24
- Languages : English
- Source: 2021 Purdue Conferences. 6th International High Performance Buildings Conference at Purdue.
- Formats : PDF
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LARGE HEAT PUMPS DRIVEN BY THERMAL ENGINES.
- Author(s) : MODEREGGER H. H.
- Date : 1981/10
- Languages : German
- Source: Kälte + Klimatechnik (Die) - vol. 34 - n. 10
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