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IIR document

A reciprocating compressor hybrid model with acoustic FEM characterization.

• Author(s) : STIACCINI I., GALOPPI G., FERRARI L.
• Publication date: 2016/03
• Languages : English
• Keywords : Thermodynamics, Geometry, Comparison, Prototype, Acoustics, Reciprocating compressor
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 63
• Formats : PDF

Augmented reality acoustics of air heat pumps – App development and methods. 

• Author(s) : DREXLER-SCHMID G. H. S., KASESS C. H., BLANK-LANDESHAMMER B., KOFINGER C., EMHOFER J., WAUBKE H., REICH C.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Acoustics, Noise, Expérimentation, Calculation, Programming
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

Acoustic improvements for a new generation of variable speed compressors.

• Author(s) : VENDRAMI C. E., PELLEGRINI C., HATTORI M., et al.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Noise, Comparison, Variable speed, Design, Performance, Optimization, Acoustics, Compressor
• Source: 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Effect of acoustic wave on enhancement of moisture adsorption rate of silica-gel.

• Author(s) : OKUBO K., MATSUDA S., UEDA Y., et al.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Silica gel, Enhancement, Adsorption, Wave, Humidity, Expérimentation, Acoustics
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Acoustic-Mechanical-Electrical (AcME) coupling between the linear compressor and the Stirling-type cryocoolers.

• Author(s) : WANG B., GUO Y., CHAO Y., et al.
• Publication date: 2019/04
• Languages : English
• Keywords : Linear compressor, Stirling, Case study, Cryocooler, Acoustics
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 100
• Formats : PDF

IIR document

Investigation of flow and acoustic performances of suction mufflers in hermetic reciprocating compressor.

• Author(s) : KIM S., CHEONG C., PARK J., et al.
• Publication date: 2016/09
• Languages : English
• Keywords : Suction, Noise, Performance, Flow, Acoustics, Hermetic compressor, Reciprocating compressor
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 69
• Formats : PDF

IIR document

Experimental investigation on the acoustic characteristics and cooling performance of the vortex tube.

• Author(s) : LIANG F., XU C., TANG G., WANG J., WANG Z., LI N.
• Publication date: 2021/11
• Languages : English
• Keywords : Vortex tube, Expérimentation, Acoustics, COP, Performance, Thermodynamic property, Ranque-hilsch
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 131
• Formats : PDF

IIR document

Containerless nucleation behavior and supercooling degree of acoustically levitated graphene oxide nanofluid PCM.

• Author(s) : LIU Y., SU C., HU P., et al.
• Publication date: 2015/12
• Languages : English
• Keywords : Oxide, Supercooling, PCM, Nucleation, Nanofluid, Graphite, Change of phase, Acoustics
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 60
• Formats : PDF

Simultaneous energy efficiency and acoustic evaluation of heat pump systems using dynamic simulation models.

• Author(s) : VERING C., KLINGEBIEL J., REICHL C., EMHOFER J., NURENBERG M., MÜLLER D.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Heat pump, Energy efficiency, Acoustics, Noise, Simulation, Air-water, Modelling
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

Acoustic Characterisation of an Air-To-Water Heat Pump for Different Operating Conditions: Inter-laboratory Results.

• Author(s) : BESSAC F., FUMAGALLI R., HELLGREN H., OLTERSDORF T., PEDERSEN S., FLECKL T., REICHL C.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Expérimentation, Standard, Testing, Acoustics, Air-water, Heat pump, Test room
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

Reducing compressor vibrations by load torque compensation from acoustic point of view.

• Author(s) : THIELECKE A., HERBST J., HUEBEL J., FRIEDE W., GAENZLE D., MANDERLA M., BECKER S.
• Publication date: 2022/07/15
• Languages : English
• Keywords : Acoustics, Noise, Domestic heat pump, Residential building, Europe, Simulation, Calculation, Rotary compressor, Test rig
• Source: 2022 Purdue Conferences. 26^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

An experimental study on capillary tube flow and its effect on the acoustic behavior of household refrigerators.

• Author(s) : HARTMANN D., MELO C.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Noise, Capillary tube, Household refrigerator, Evaporator, Flow, Refrigerant, Acoustics
• Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

On the enhanced acoustic design of the indoor environments: correspondence of perceptual quantities between real and simulated sound fields.

• Author(s) : VISENTIN C., PRODI N., CAPPELLETTI F., et al.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Software, Indoor environment, Design, Sound, Simulation, Expérimentation, School, Acoustics
• Source: 2018 Purdue Conferences. 5^th International High Performance Buildings Conference at Purdue.
• Formats : PDF

Numerical analysis on a perforated muffler applied in the discharge chamber of a twin screw refrigeration compressor based on fluid-acoustic coupling method.

• Author(s) : SUN S., XING Z., CHEN W., ZHOU M., HUANG Y. H., SU P. C.
• Publication date: 2021/05
• Languages : English
• Keywords : Screw compressor, Noise, Discharge, CFD, Simulation, Optimization, Reduction, Acoustics, Damping
• Source: 2021 Purdue Conferences. 25^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Analysis of a nano-scale thermo-acoustic refrigerator.

• Author(s) : DALKIRAN A., AÇIKKALP E., SAVAS A. F.
• Publication date: 2016/06
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 66
• Formats : PDF

Briefs: Thermoacoustics

A project led by the University of Nottingham aims at developing a device acting as a refrigerator, cooker and power generator, using biomass fuels such as wood. The SCORE (Stove for COoking, Refrigeration and Electricity) is based on the use of...

• Publication date : 2007/08/05

Briefs: Thermoacoustics for air conditioning

The Palo Alto Research Center (PARC), is developing a new form of refrigeration for cooling at room temperature, based on thermoacoustics, which was previously used only for cryogenic temperatures. The technology PARC developed is claimed to...

• Publication date : 2010/05/27

Refrigerants Naturally

During the conference Refrigerants Naturally held by UNEP and Greenpeace on June 22, 2004 in Brussels, Belgium, three companies reported on their global environmental actions and presented their objectives in this field: - Coca-Cola (Jeff...

• Publication date : 2004/11/10

R&D topics

In this issue of the Newsletter dedicated to environmental issues, we present several initiatives related to promising refrigeration technologies or applications which have the potential to decrease the environmental impact of refrigeration plants...

• Publication date : 2007/08/05

Progress in electrocaloric cooling

A team of researchers develop a new material with electrocaloric effects over a wider temperature range.

• Publication date : 2019/10/30

New evaporative cooling system for more energy efficient data centres

A dew point cooling system, which is an indirect evaporative cooling system that approaches the dew point, has reduced the electricity consumption of a UK data centre by 80%. 

• Publication date : 2021/12/15
• Subjects: Technology

Evaporative cooling without adding humidity

Scientists at the University of Harvard have designed a prototype evaporative cooling system called Cold-SNAP that effectively cools air at low cost for both dry and humid climates.

• Publication date : 2020/05/26
• Subjects: Developing country, Technology

A laser beam which cools liquids

The first laser refrigeration process was demonstrated in vacuum conditions in 1995. Twenty years later, a team from University of Washington explains in a study, published in the Proceedings of the National Academy of Sciences, how a laser can...

• Publication date : 2016/05/17

Shape memory alloys: cooling with metal muscles

Researchers from the University of Saarland (Germany) are constructing an optimized prototype for an air-cooling system in which heat and cold are transferred using “muscles” made from a nickel-titanium alloy thanks to the elastocaloric effect.

• Publication date : 2016/08/19

Meeting the cooling and freshwater needs of arid countries

In a recent review article, the authors summarised research efforts in meeting cooling and freshwater demands in arid and hot climates, using available solar...

• Publication date : 2023/03/28
• Subjects: Technology

Recent overview of research on electrocaloric cooling

A recent literature review presents an overview of research on electrocaloric cooling. The authors addressed the following topics: thermodynamic cycles, electrocaloric materials, experimental devices, numerical...

• Publication date : 2021/01/04
• Subjects: Technology

Cooling without electricity

The US Stanford University is currently testing an innovative cooling technology using radiative sky cooling.

• Publication date : 2018/01/24

A review of current status of free cooling in data centres

A study published in Applied Thermal Engineering reviews current status of the free cooling technologies in data centres

• Publication date : 2017/09/19

Maturity level of alternative AC technologies

In a recent review article, the authors assessed air conditioning technologies in Europe according to their Technology Readiness Level (TRL).

• Publication date : 2023/12/29
• Subjects: Technology

Radiative cooling coatings that can adapt to the seasons

A novel material can be used as a coating on building’s rooftops or windows to provide radiative cooling in the summer without overcooling in the colder months. 

• Publication date : 2022/01/28
• Subjects: Technology

Obituary : Gerald Groff

Gerald Groff, former President of Section E and very active in the IIR died on September 15.

• Publication date : 2019/09/30