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IIR document

Speed of sound and dielectric constant measurements for a mixture of HFO-1123 and R-32 in the gas phase.
- Author(s) : KANO Y., KAYUKAWA Y., FUJITA Y.
- Publication date: 2018/09
- Languages : English
- Keywords : Gas, Microwave, Measurement, R32, , Mixture, HFO, Expérimentation, Dielectric constant
- Source: 1^st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
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IIR document

Speed of sound and dielectric constant measurements for a mixture of HFO-1123 and R-32 in the gas phase.
- Author(s) : KANO Y., KAYUKAWA Y., FUJITA Y.
- Publication date: 2018/09
- Languages : English
- Keywords : Gas, Microwave, Measurement, R32, , Mixture, HFO, Expérimentation, Dielectric constant
- Source: 1^st IIR international conference on the application of HFO refrigerants, Birmingham, September 2-5 2018.
- Formats : PDF
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Experimental study on physical properties of CuO - PVE nano-oil and its mixture with refrigerant.
- Author(s) : MOTOZAWA M., MAKIDA N., FUKUTA M.
- Publication date: 2018/07/09
- Languages : English
- Keywords : Viscosity, Thermal conductivity, Nanolubricant, Nanoparticle, Oil, Expérimentation, Dielectric constant, Refrigerant, Compressor
- Source: 2018 Purdue Conferences. 24^thInternational Compressor Engineering Conference at Purdue.
- Formats : PDF
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IIR document

Relative permittivity of mixtures of R-134a and R-1234yf and a polyol ester lubricating oil.
- Author(s) : SEDREZ P. C., BARBOSA J. R. Jr
- Publication date: 2015/01
- Languages : English
- Keywords : R134a, R1234yf, Polyolester, Dielectric property, Mixture, Oil, Refrigerant
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 49
- Formats : PDF
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Real-time frost porosity (density) measurement using capacitive sensor.
- Author(s) : SHEN Y., ZHANG Y., WANG X.
- Publication date: 2018/07/09
- Languages : English
- Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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Design of capacitive sensors for measuring void fraction in headers of microchannel heat exchangers.
- Author(s) : QIAN H., HRNJAK P.
- Publication date: 2021/05
- Languages : English
- Source: 2021 Purdue Conferences. 18^thInternational Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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Mass measurement, visualization and signal pattern based calibration of capacitive sensors for measuring void fraction in headers.
- Author(s) : QIAN H., HRNJAK P.
- Publication date: 2021/05
- Languages : English
- Source: 2021 Purdue Conferences. 18^thInternational Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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Recommended by the IIR / IIR document

Experimental investigation of a vapour compression refrigeration system using R134a/Nano-oil mixture.
- Author(s) : NAIR V., PAREKH A. D., TAILOR P. R.
- Publication date: 2020/04
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 112
- Formats : PDF
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IIR document

New low global warming halogenated olefin working fluids for use in two-phase cooling.
- Author(s) : JUHASZ J., SIMONI L.
- Publication date: 2019/08/24
- Languages : English
- Keywords : Two-phase flow, Electronics, Low GWP, Thermodynamic property, Dielectric property, Modelling, HFO, Refrigerant, Latent heat, Boiling
- Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
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Dielectric coefficient and density of subcooled liquid oxygen.
- Author(s) : CELIK D., SCIVER S. W. van
- Publication date: 2005/05
- Languages : English
- Keywords : Oxygen, Cryotemperature, Liquid, Density, Subcooling, Dielectric property, Dielectric constant
- Source: Cryogenics - vol. 45 - n. 5
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IIR document

The dielectric constant of liquid HFC32.
- Author(s) : NIETO DE CASTRO C. A., SANTOS F. J. V., MARDOLCAR U. V.
- Publication date: 1995/08/20
- Languages : English
- Keywords : Measurement, R32, Substitute, Dielectric property, Refrigerant
- Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
- Formats : PDF
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IIR document

Dielectric properties of liquid refrigerants: facts and trends.
- Author(s) : RIBEIRO A. P. C., NIETO DE CASTRO C. A.
- Publication date: 2011/03
- Languages : English
- Keywords : Viscosity, Debye, Temperature, Thermodynamic property, Electric property, Dielectric property, HFC, Dielectric constant, Refrigerant
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 34 - n. 2
- Formats : PDF
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IIR document

Thermophysical properties of alternative refrigerants.
- Author(s) : GUROVA A. N., BARAO M. T., SOUSA A. T., NIETO DE CASTRO C. A., MARDOLCAR U. V., FIALHO P. S.
- Publication date: 1994/09/21
- Languages : English
- Source: CFCs, the Day After.
- Formats : PDF
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IIR document

The new high-frequency system for parameters measurement of two-phase cryogenic fluids (helium, hydrogen, nitrogen, oxygen, methane).
- Author(s) : ARKHAROV A., GRECHKO A., GLAVATSKIKH S., et al.
- Publication date: 1991/08/10
- Languages : English
- Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
- Formats : PDF
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IIR document

ELECTRICAL CHARACTERIZATION OF ALTERNATE REFRIGERANTS.
- Author(s) : FELLOWS B. R., RICHARD R. G., SHANKLAND I. R.
- Publication date: 1991/08/10
- Languages : English
- Keywords : CFC, Measurement, Electrical resistance, Substitute, Dielectric property, Refrigerant
- Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
- Formats : PDF
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See all results in the Fridoc database

Market assessment and updates of Rwanda’s national cooling strategy

In Rwanda, the purchase of household refrigerators and ACs is increasing with economic growth. As part of the national cooling strategy, the country has launched a public awareness campaign on efficient cooling...
- Publication date : 2021/03/29
- Subjects: Environment, Developing country
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Impact of ageing on the energy efficiency of refrigerating household appliances

A recent study shows an average increase in energy consumption of 11% after 2 years of operation and 27% after 16 years for these appliances. Ageing wall insulation and door gasket contribute to this...
- Publication date : 2022/02/28
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Earth-to-air heat exchanger for air conditioning in a Colombian tropical weather

In a recent theoretical study, a passive cooling system using an earth-to-air heat exchanger (EAHE) was modelled for the Colombian tropical weather.
- Publication date : 2021/08/02
- Subjects: Developing country, Technology
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Isochoric freezing could cut down energy use in the global food cold chain

Compared to conventional isobaric freezing, isochoric freezing could significantly improve the quality of frozen food and generate substantial energy savings.
- Publication date : 2021/10/22
- Subjects: Technology
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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
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Energy saving initiatives for cooling in data centres

In January 2021, Europe’s leading cloud and data centre operators signed the Climate Neutral Data Centre Pact, a self-regulatory initiative to become climate neutral by 2030. According to recent studies, free...
- Publication date : 2021/02/25
- Subjects: Environment, Technology
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Review of F-gas regulation - IIR contribution

The IIR has responded to the European Commission consultation “Fluorinated greenhouse gases – review of EU rules (2015-20)” which aims to collect opinions and suggestions about the update of the F-gas Regulation...
- Publication date : 2020/09/06
- Subjects: Regulation, Environment, HFCs alternatives
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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)
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