Experimental investigation of performance of two-phase ejector operating with volatile fluids

• Autorzy: Butrymowicz D. , Karwacki J. , Miąskowska D. , Trela M.
• Konferencja: "Modelling and Multiphase Flows in Thermo-Chemical Systems. Advanced Measurement Techniques" / sympozjum [5th; September 2nd to 4th, 2005; Stawiska near Gdansk, Poland]
• Języki publikacji: EN

Abstrakty

EN

Two-phase liquid-vapour ejectors may be applied in refrigeration systems in order to reduce the throttling loss. However, there is a clear need for fundamental investigations of such ejectors operating with refrigerants (i.e. volatile fluids) in order to predict their performance under required operating conditions. The paper deals with experimental investigation of the performance of the two-phase ejector operating with refrigerant R-123. The testing apparatus and procedure have been described. The effect of compression ratio and entrainment ratio on the ejector efficiency have been showed on the basis of the experimental results.

Słowa kluczowe

EN

two-phase ejectors; two-phase flow

PL

strumienica dwufazowa; przepływ dwufazowy

• Wydawca: Wydawnictwo Politechniki Częstochowskiej
• Czasopismo: Turbulence : international journal
• Rocznik: 2005
• Tom: Vol. 11
• Strony: 225--233
• Opis fizyczny: Bibliogr. 11 poz.

Twórcy

autor

Butrymowicz D.

• Institute of Fluid-Flow Machinery of Polish Academy of Sciences, Fiszera 14, 80-952, Gdańsk, Poland

autor

Karwacki J.

• Institute of Fluid-Flow Machinery of Polish Academy of Sciences, Fiszera 14, 80-952, Gdańsk, Poland

autor

Miąskowska D.

• Institute of Fluid-Flow Machinery of Polish Academy of Sciences, Fiszera 14, 80-952, Gdańsk, Poland

autor

Trela M.

• Institute of Fluid-Flow Machinery of Polish Academy of Sciences, Fiszera 14, 80-952 Gdansk, Poland,

Bibliografia

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• |2| Kornhauser A.A., The use of an ejector as a refrigerant expander, Proccedings. of USNC/IIR-Purdue Refrigeration Conference, Purdue University, West Lafayette, USA, 1990, 10-19.
• [3] Domanski P A., Theoretical Evaluation of the Vapor Compression Cycle With a Liquid-Line/Suction-Line Heat Exchanger, Economizer, and Ejector, National Institute of Standards and Technology, Gaithersburg, MD, USA, 1995, Report No. NISTIR 5606.
• [4] Nagakawa M. et al., Mixing of the Confined Jet of Mist Flow, JSME International Journal, Series B, 1996, 39, 2, 381-386.
• [5] Menegay P., A computational model for two-phase ejector flow, Ph.D. Thesis, Yirginia Polytechnic Institute, Blacksburg, Virginia, USA 1997.
• [6] Butrymowicz D., Improvement of compression refrigeration cycle by means of two-phase ejector, XXI Congress of Refrigeration, Washington D.C., USA 2003, Paper No. ICR0310.
• [7] Butrymowicz D., Investigation of thermal and hydrodynamic processes in two-phase ejector for improving efficiency of refrigeration cycles. Finał report of the research project (in Polish), Report of the Institute of Fluid-Flow Machinery of PASc, No. 4750/2004, Gdańsk 2004.
• [8] Butrymowicz D., Problems of improving of effectiveness of refrigeration cycles (in Polish), Scientific Notes of the Institute of Fluid-Flow Machinery of PASc, No. 538/1497/2005, Gdańsk 2005.
• [9] Harrell G.S., Komhauser A.A., Performance Tests of a Two-Phase Ejector, 30th Intersociety Energy Conversion Engineering Conference, Orlando, FL, USA, 1995, Paper No. 95-69.
• [10] Disawas S., Wongwises S., Experimental investigation on the performance of the refrigeration cycle using a two-phase ejector as an expansion device, International Journal of Refrigeration 2004, 27, 587-594.
• [11] Cunningham R.G., Gas Compression With the Liquid Jet Pump, Transactions of the ASME, Journal of Fluids Engineering 1974, 3, 94, 203-215.