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IIR document

Numerical investigation on indicated power and discharge process of three different discharge methods of swing compressor.

• Author(s) : PAN X., PAN S., HOU J., ZENG W., XIE J.
• Publication date: 2022/10
• Languages : English
• Keywords : Compressor, Discharge, Pressure, Variation, Modelling, Calculation, Thermodynamic property
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 142
• Formats : PDF

IIR document

On-line discharge capacity detection for linear compressor.

• Author(s) : ZOU H., LI C., TANG M., et al.
• Publication date: 2017/09/06
• Languages : English
• Keywords : Linear compressor, Control (automatic), Discharge, Expérimentation, Detection
• Source: Compressors 2017: 9^th International Conference on Compressors and Coolants.
• Formats : PDF

IIR document

Flow development in the discharge of a compressor.

• Author(s) : WUJEK S., HRNJAK P.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Discharge, Modelling, Flow, Flow rate, Refrigerant, Compressor
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

Oil flow measurement at the compressor discharge.

• Author(s) : XU J., HRNJAK P.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Velocity (fluids, gases), Discharge, Oil, Droplet, Expérimentation, Flow, Compressor
• Source: 2016 Purdue Conferences. 23^rd International Compressor Engineering Conference at Purdue.
• Formats : PDF

R-404A alternative with low compressor discharge temperature.

• Author(s) : MINOR B., SULC V., BERGE J., et al.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Temperature, Discharge, R404A, Substitute, Performance, GWP, Expérimentation, Refrigerant, Compressor
• Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Linear compressor discharge manifold design for high thermal efficiency.

• Author(s) : LILIE D. E. B., PUFF R., BORTOLI M. G. D. de
• Publication date: 2016/07/11
• Languages : English
• Keywords : Linear compressor, Design, Efficiency, Discharge, Performance, Hermetic compressor
• Source: 2016 Purdue Conferences. 23^rd International Compressor Engineering Conference at Purdue.
• Formats : PDF

Numerical simulation of discharge process in the single screw compressor.

• Author(s) : ZHANG Z., PENG C., WU W.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Thermodynamics, Pulsation, Gas, Discharge, Modelling, Pressure, Screw compressor
• Source: 2018 Purdue Conferences. 24^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

Mechanical and deformation characteristics of rotary compressor discharge valve.

• Author(s) : HU Y. S., YANG O. X., GAO J., ZHANG X. Y., HU Y. P.
• Publication date: 2021/09
• Languages : English
• Keywords : Rotary compressor, Discharge, Valve (compressor), Modelling, Simulation, Expérimentation, Optimization
• Source: 12^th International Conference on Compressors and their Systems
• Formats : PDF

IIR document

Quantification of flow and retention of oil in compressor discharge pipe.

• Author(s) : XU J., HRNJAK P.
• Publication date: 2017/08
• Languages : English
• Keywords : Pipe, Measurement, Discharge, Oil, Droplet, Flow, Compressor
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 80
• Formats : PDF

Force assisted discharge valve for piston compressors.

• Author(s) : DUR L., EGGER A., ALMBAUER R.
• Publication date: 2021/09
• Languages : English
• Keywords : Hermetic compressor, Reciprocating compressor, Household refrigerator, Simulation, Discharge, Valve (compressor), Modelling, COP
• Source: 12^th International Conference on Compressors and their Systems
• Formats : PDF

Fatigue prediction of the discharge pipe of reciprocating compressors.

• Author(s) : KIM J. H., KWON D. I., LEE J. B., et al.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Tube, Design, Temperature, Discharge, Prediction, Optimization, Fatigue, Expérimentation, Reciprocating compressor
• Source: 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
• Formats : PDF

CFD approach to optimize discharge flow line of a reciprocating compressor.

• Author(s) : EKTAS S., PIRI M.
• Publication date: 2022/07/15
• Languages : English
• Keywords : Reciprocating compressor, Discharge, CFD, Expérimentation, Model, Geometry, Modelling, Design
• Source: 2022 Purdue Conferences. 26^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

Transient migration of oil at compressor discharge and suction during startup.

• Author(s) : WANG X., HAIDER S., HRNJAK P., ELBEL S.
• Publication date: 2022
• Languages : English
• Keywords : Scroll compressor, Expérimentation, Oil, Lubricant, Discharge, Thermodynamic property, Suction
• Source: 2022 Purdue Conferences. 19^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Experimental study on suction refrigerant state and discharge temperature for rolling piston compressor.

[In Chinese. / En chinois.]

• Author(s) : YANG L., TAO L., TAO H., et al.
• Publication date: 2014/04
• Languages : Chinese
• Keywords : Suction, Vapour, Temperature, Discharge, Performance, Expérimentation, Rolling piston compressor
• Source: Journal of Refrigeration - vol. 35 - n. 156
• Formats : PDF

IIR document

Comparison of constant and variable discharge flow and force coefficients for reciprocating compressor.

• Author(s) : PASHAK P., KARABAY A. Y., SAHIN C., MALIK A. N., LAZOGLU I.
• Publication date: 2023/07
• Languages : English
• Keywords : Reciprocating compressor, Valve (compressor), Piston, Modelling, Discharge, Flow
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 151
• Formats : PDF

Liquid nitrogen for French cuisine

The system uses the natural pressure of nitrogen during evaporation according to a vertical discharge principle.

• Publication date : 2015/03/12

Scroll compressors offer top efficiency

Scroll compressors offer top efficiency The Taiwan-based compressor manufacturer ChynTec International Co. Ltd. published an article earlier this year offering a synthetic comparison of the general performance of reciprocating, scroll and screw...

• Publication date : 2005/12/22

Briefs: Ionic Wind to Cool PCs

Kronos Advanced Technologies are developing a cooling process for personal computers based on an ionic wind pump. Ionic air propulsion is based on a principle called the corona discharge, an electrical discharge characterized by a corona, i.e. a...

• Publication date : 2007/05/04

Briefs: Sustainable fishery in Namibia

Since November 2009, Hangana Seafood has a new pre-sorting facility in Walvis Bay harbour, Namibia, which uses ammonia as a refrigerant. The 2800 m² sorting facility has a 0°C chill room for holding unsorted fish, two 16°C temperature-controlled...

• Publication date : 2011/02/04

How to evaluate the refrigerating capacity of compressors?

Most compressor manufacturers express the capacity of their compressors using the "nominal capacity" of the motor, expressed in HP (1 Horse Power = 0.735 kW) which does not give precise information on the refrigerating capacity of the compressor....

• Publication date : 2007/05/04

Briefs: Japan: refrigerant leakage larger than expected

According to a survey conducted by the Ministry of Economy, Trade and Industry (METI) of Japan, leakage of fluorinated refrigerants used in air-conditioning equipment in the country is on the average 10 times greater than estimated. METI collected...

• Publication date : 2009/08/13

Cryogenics: Energy Saving for Cryogenic Systems

The Cryogenics Group in the Accelerator Engineering Department of the Accelerator Division of Thomas Jefferson's National Accelerator Facilities has discovered a way of cutting the energy consumption of the compressors involved in cryocooling. The...

• Publication date : 2007/05/04

Development and evaluation of a reversible CO2 residential air conditioning system compared to a state-of-the art R410a unit

This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A reversible CO2 prototype RAC split unit system was designed, built and installed in two calorimetric test chambers. The unit is based on the Lorentzen Cycle...

• Publication date : 2004/11/24

Novel energy-saving cryogenic equipment for walnut kernel peeling

In a recent study, a prototype cryogenic equipment was designed to peel walnut kernel more efficiently than by immersion in liquid nitrogen. 

• Publication date : 2021/04/28
• Subjects: Technology

Noise reduction strategies for screw compressors

The operating noise of twin-screw compressors is an important issue that may limit their scope of application. Two recent IJR papers suggest several noise reduction methods and analyse their...

• Publication date : 2021/05/31

Heat pump systems for HVAC in electric vehicles

Heat pump systems offer an energy efficient option for HVAC in electric vehicles. Recent studies present innovative technologies to further improve the heating and cooling performance of heat pump systems as...

• Publication date : 2021/01/27
• Subjects: HFCs alternatives

Summary of two papers of the 9th International Conference on Compressors and Coolants (ICCC2017)

The IIR 9th International Conference on Compressors and Coolants (ICCC2017), which took place in Bratislava, Slovakia, in September 2017, addressed advances in compressors but also refrigerating technologies and alternative refrigerants, as...

• Publication date : 2018/01/10

Recycling could significantly cut down emissions from HFC production

A team of researchers estimated that with 30% of recycled refrigerants in the annual output, CO2 emissions from the production of R134a could be reduced by about a...

• Publication date : 2022/02/28
• Subjects: Environment

R410A/R22 alternatives for AC in high-ambient temperature environments: R32 and R290

The final US Oak Ridge National Laboratory report – presented during MOP27 in Dubaï – compares the performance of low-GWP alternative refrigerants to HFC R410A in mini-split air conditioners (ACs) under high-ambient-temperature conditions.

• Publication date : 2016/05/11

Faults and energy consumption of CO2 refrigeration systems in supermarkets

Food products refrigeration accounts for the largest share of energy consumption in supermarkets. In a recent study, the most common faults in supermarket CO2 refrigeration systems were investigated,...

• Publication date : 2021/06/29
• Subjects: Figures, economy, Technology

IIR member news: Linde

Linde Kryotechnik cryogenic company has developed a groundbreaking refrigeration system used to cool extreme temperatures in an experiment to create fusion fuel.

• Publication date : 2016/05/18

Additive manufacturing of regenerators for caloric cooling

In many areas of engineering, additive manufacturing allows the production of complex and multifunctional products that could not be manufactured using traditional methods. In the...

• Last update : 2022/09/16
• Langues : English, French
• Themes : Caloric cooling (magnetocaloric, electrocaloric, elastocaloric and barocaloric cooling)

Additive manufacturing of heat exchangers

In the refrigeration industry, additive manufacturing (colloquially referred to as “3D printing”) makes it possible to fabricate novel, complex and potentially more energy efficient...

• Last update : 2022/09/07
• Langues : English, French
• Themes : Evaporators, condensers and other heat exchangers