Search results

Rock-soil thermal response test and application of ground-source heat pump in severe cold zone.

[In Chinese. / En chinois.]

• Author(s) : GE F., LIU H., WANG J., et al.
• Publication date: 2014/11
• Languages : Chinese
• Source: HV & AC - vol. 44 - n. 297
• Formats : PDF

Mini-split: two-story houses and stratification.

• Author(s) : ROCK B. A.
• Publication date: 2017/02
• Languages : English
• Source: ASHRAE Journal - vol. 59 - n. 2

Effect of ventilation on the thermal performance of tunnel lining GHEs.

• Author(s) : ZHANG G., XIA C., ZHAO X., et al.
• Publication date: 2016/01/25
• Languages : English
• Source: Applied Thermal Engineering - vol. 93

Numerical modeling and optimization of an insulation system for underground thermal energy storage.

• Author(s) : KIM H., PARK D., PARK E. S., et al.
• Publication date: 2015/12/05
• Languages : English
• Source: Applied Thermal Engineering - vol. 91

Research and analysis on influence factors of accuracy of geotechnical thermal response test.

• Author(s) : LINGYAN Y., JINTANG L., YIJUN F., NING M., WEI W., MENGMENG B.
• Publication date: 2021/08/31
• Languages : English
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

Miniature oil-less linear compressor for portable oxygen concentrator.

• Author(s) : LEE H., SUN H., KIM Y.
• Publication date: 2018/07/09
• Languages : English
• Source: 2018 Purdue Conferences. 24^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

Comparative analysis of different cooling systems for geothermal thermoelectric generators. (Article in Spanish.)

• Author(s) : CATALAN L., ASTRAIN D., ARANGUREN P., et al.
• Publication date: 2018/06/19
• Languages : Spanish
• Source: CYTEF 2018. IX Congreso Ibérico y VII Congreso Iberoamericano de Ciencias y Técnicas del Frío, Valencia, España, 19-21 junio 2018.
• Formats : PDF

IIR document

Effect of insulation on the energy and exergy performances in Diffusion Absorption Refrigeration (DAR) systems.

• Author(s) : YILDIZ A., ERSÖZ M. A., GÖZMEN B.
• Publication date: 2014/08
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 44
• Formats : PDF

IIR document

Dynamic study efficiency of the use of phase change materials integrated on the ceiling of a community hall.

• Author(s) : ASFOUR S., TITTELEIN P., ZALEWSKI L.
• Publication date: 2018/05/21
• Languages : English
• Source: 12^th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings: Orford, Canada, May 21-23, 2018.
• Formats : PDF

Advances in cryogenic fracturing of coalbed methane reservoirs with LN₂.

• Author(s) : LONGINOS S. N., WANG L., HAZLETT R.
• Publication date: 2022/12
• Languages : English
• Source: Energies - vol. 15 - 24
• Formats : PDF

Three Years’ Performance Monitoring of a Mixed-Use Ground Source Heat Pump System in Stockholm.

• Author(s) : SPITLER J. D., GEHLIN S.
• Publication date: 2021/08/31
• Languages : English
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

Transient heat transfer models of wellbore and formation systems during the drilling process under well kick conditions in the bottom-hole.

• Author(s) : LI G., YANG M., MENG Y., et al.
• Publication date: 2016/01/25
• Languages : English
• Source: Applied Thermal Engineering - vol. 93

Optimum R-values of building walls under different climatic conditions in the Kingdom of Saudi Arabia.

• Author(s) : SANEA S. A. al-, ZEDAN M. F., MUJAHID A. M. al-, et al.
• Publication date: 2016/03/05
• Languages : English
• Source: Applied Thermal Engineering - vol. 96

Estimating the subsurface thermal conductivity and its uncertainty for shallow geothermal energy use— A workflow and geoportal based on publicly available data.

• Author(s) : HEIM E., LASKA M., BECKER R., KLITZSCH N.
• Publication date: 2022/06
• Languages : English
• Source: Energies - 15 - 10
• Formats : PDF

IIR document

NUMERICAL MODELLING OF THE ROCK-FREEZING PROBLEM.

• Author(s) : KALINOWSKI E., KUDELA H., LANGE G.
• Publication date: 1983/08/07
• Languages : English
• Keywords : Civil engineering, Calculation, Rock, Stefan, Ground, Ground freezing, Freezing
• Source: [Refrigeration serving humanity]. Proceedings of the XVI^th international Congress of Refrigeration.
• Formats : PDF

Briefs: Lifesaving pocket refrigerator

During the severe heatwave in Europe in 2003, Uwe Diegel realized that his brother was encountering problems keeping his insulin refrigerated while travelling. So the inventor decided to invent a pocket refrigerator based on the Peltier effect...

• Publication date : 2011/02/04

The Gallic cock saved thanks to cryogenics

The Gallic cock, of the Gauloise dorée breed, one of the most ancient French animal breeds, and France's national symbol, was gradually disappearing. Only 200 individuals, kept by amateur breeders, were left. One of the characteristics of this...

• Publication date : 2005/01/12

Temperature tracking in real time

Refrigeration transport companies are increasingly introducing temperature tracking systems. Pomona Terre Azur, located in Brittany, France, launched embarked Masternaut computer technology in 22 lorries in 2008. The computers are linked to a...

• Publication date : 2009/05/18

Tracking drugs and life-sciences goods thanks to RFID temperature tag

DHL Global Forwarding has commercialized DHL Thermonet, an RFID-based air-freight service allowing customers to track the temperatures of their goods throughout the shipping process.

• Publication date : 2013/09/08

LEGO® block structures as a solution for cryogenic temperature insulation?

British researchers have cooled LEGO® blocks at a temperature of a few mK in an experiment which reveals a possible new application for the material which composes the popular toy.

• Publication date : 2020/02/27

Refrigerated lockers for fresh food delivered anywhere.

Epta France won the prestigious Janus de l’Industrie French award for the third consecutive time for its innovative #EPTAbricks.

• Publication date : 2017/02/23

Customs block trade in over 1,300 tonnes of illegal refrigerant

The United Nation Environment Programme reports that illegal trade of over 1,300 tonnes of ozone-depleting gases has been prevented over the last 18 months.

• Publication date : 2014/06/24
• Subjects: Regulation

Underground storage of liquid CO2

Dispensing of CO2 by storing it underground usually implies placing it in aquifer rocks deep enough (-800 m) to achieve sufficient pressure to maintain the CO2 in a supercritical (fluid) phase. This approach has many shortcomings as in this form,...

• Publication date : 2006/11/15

Out of the Ordinary: Pandas

Funi and Wang Wang, a couple of giant pandas, are star attractions at Adelaide Zoo in Australia. To keep them cool during South Australia's hot summers, chilled glass-reinforced rocks, air conditioning and waterfalls have been installed. The...

• Publication date : 2011/02/11

A Refrigerated Noah’s ark

Svalbard Global Seed Vault, on the Norwegian island of Spitzbergen, which has officially opened on February 26, 2008, is designed to be a fail-safe repository for the world's food crops. It has the capacity to store up to 4.5 million seed samples...

• Publication date : 2008/02/12

Artemis I mission: cryogenic system failure delays launch

Due to a liquid hydrogen leak in the rocket's core stage, NASA is postponing the launch of the Artemis I mission until late September or October 2022. 

• Publication date : 2022/09/28
• Subjects: Technology

IIR Cryogenics 2023 conference: perspectives of cryogenic technologies for 2030

Overview of future technological advances in cryogenics: liquid hydrogen electric aircrafts, cryofuels, hydrogen chemical energy conversion, fuel cells for energy storage, cryogenic rocket engine, quantum and...

• Publication date : 2023/06/27

Juice mission: discovering the icy moons of Jupiter

ESA's Jupiter Icy Moons Explorer (Juice) lifted off on an Ariane 5 rocket on 14 April 2023. This successful launch marks the beginning of an ambitious journey to discover the secrets...

• Publication date : 2023/04/26
• Subjects: Technology

ASHRAE Technology Awards: winning project features green design

The ASHRAE Technology Awards recognize outstanding achievements by members who have successfully applied innovative building design in the areas of occupant comfort, indoor air quality (IAQ) and energy conservation. The designs incorporate ASHRAE...

• Publication date : 2005/06/14

Hydrogen technology: Cryogenic Engine

A liquid oxygen-hydrogen pump fed engine achieved a major technical milestone in throttling capability. It is designed to demonstrate successful throttling from full power down to 10% of its thrust. This flexibility to control the flow of fuel...

• Publication date : 2007/11/20

Latest IIR conference papers in Fridoc!

Papers from recent IIR conferences can all be downloaded from IIR Fridoc database.

• Publication date : 2017/01/31

Conference update: Sydney

The 9th IIR Gustav Lorentzen Conference on Natural Working Fluids will be held in Sydney, Australia on, April 12-14, 2010. The conference will place a heavy emphasis on natural refrigerant CO2 as a real alternative solution....

• Publication date : 2009/12/09

The Mostra Convegno exhibition

In March 2018 the IIR participated in one of the biggest exhibitions on refrigeration technologies, Mostra Convegno, which took place, as always, in Milan.

• Publication date : 2018/04/19

The IIR at the heart of magnetic refrigeration

Magnetic refrigeration technology proves more alluring than ever: conferences, workshops and research projects continue to make waves.

• Publication date : 2015/03/25

New IIR Informatory Note. Low-GWP Refrigerants: Status and Outlook

The latest IIR Informatory Note outlines the options available for low-GWP refrigerants and their respective performance. It provides a series of recommendations on refrigerant...

• Publication date : 2022/07/08
• Subjects: HFCs alternatives

Activities of IIR’s Commission B1 on “Thermodynamics and Transfer Processes”

Thermodynamics is essential for all topics covered by the IIR.

• Publication date : 2017/02/23

Activities of the IIR’s Commission B1 on Thermodynamics & transfer processes

The IIR’s Commission B1 has been extremely active in the areas of working parties (WP), sub-commissions, IIR conferences, IIR-co-sponsored conferences and commission business meetings.

• Publication date : 2013/09/02

News from IIR members: Sofrigam

Sofrigam has developed new technology following extensive research over a 2-year period: a fast locking system that ensures security and sealing of its passive refrigerated packaging.

• Publication date : 2013/04/19

IIR member news: Cooltech

The €1.7m MagFreeG project has just been granted to the French company Cooltech Applications by the European Union through CIP Eco-innovation program.

• Publication date : 2014/11/14

IIR conference on caloric cooling Thermag VIII: highlights

Thermag VIII was an opportunity to present new developments regarding magnetocaloric, electrocaloric and elastocaloric cooling.

• Publication date : 2018/10/18

Call for abstracts now open: 10th IIR Conference on Caloric Cooling and Applications of Caloric Materials (Thermag 2022)

To be hosted by the University of Ljubljana – Faculty of Mechanical Engineering this August, the call for abstracts has been launched for the 10th edition of the IIR Thermag conference...

• Publication date : 2022/01/21
• Subjects: Technology

New IIR Working Group on Solid-State Cooling and Heating

Initiated by Andrej Kitanovski (Slovenia), this working group's first objective is to promote international research collaboration in the areas of solid-state cooling, heat pumps, and energy...

• Publication date : 2022/07/08

New IIR Informatory Note on caloric cooling technologies 

IIR’s 50th Informatory Note on refrigeration technologies focuses on three promising alternative solid-state cooling technologies: magnetocaloric, electrocaloric and...

• Publication date : 2022/12/15
• Subjects: Technology

New course on magnetic refrigeration!

The IIR has just published a new course entitled “Magnetic refrigeration” on its website, in the “Courses and training” section. 

• Publication date : 2023/06/28

IIR member news: Johnson Controls YORK chiller optimised for R1233zd(E)

The YORK YZ magnetic bearing centrifugal chiller, produced by Johnson Controls, is said to be the first chiller fully optimized for ultimate performance with the low-global warming potential refrigerant R1233zd(E).

• Publication date : 2019/01/31

Hydrocarbon refrigerants

Hydrocarbons such as R290 (propane), R600a (isobutane) or R1270 (propene/propylene) are low GWP non-toxic natural refrigerants with excellent thermodynamic properties. They offer an...

• Last update : 2022/06/22
• Langues : French, English
• Themes : Hydrocarbons, Containment, refrigerant charge reduction

Thermophysical properties of hydrocarbon refrigerants

Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and blends.

• Last update : 2022/06/17
• Langues : English
• Themes : Hydrocarbons, Blends

Liquefied Natural Gas: production process and cold energy recovery

Liquefied natural gas (LNG) is natural gas that has been cooled to about -160 °C and turned into a liquid to facilitate transportation and storage. A typical LNG supply chain...

• Last update : 2023/06/23
• Langues : French, English
• Themes : LNG and LPG

For IIR members only

Heat pump stock in Europe

This table presents the stock of installed heat pumps, the CO2 emissions avoided and the number of jobs in the heat pump sector in Europe.

• Last update : 2021/12/14
• Langues : English
• Themes : Heat pumps, energy recovery: economics and statistics

Ice cream manufacturing, environmental impact and market data

From a physico-chemical point of view, ice cream is a complex, frozen multiphase mixture. The manufacturing process includes several stages of freezing which are described in this...

• Last update : 2023/06/30
• Langues : French, English
• Themes : Ice creams

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 : French, English
• Themes : Caloric cooling (magnetocaloric, electrocaloric, elastocaloric and barocaloric cooling)

Cryogenic nitrogen in the food and beverage industry

The adoption of cryogenic processes in the food and beverage industry is predominantly driven by liquid nitrogen (LIN), and it is the preferred candidate for food chilling and...

• Last update : 2023/11/07
• Langues : French, English
• Themes : Freezing of foodstuffs

Global warming potential (GWP) of HFC refrigerants

Using the latest updated data from UNEP’s RTOC 2022 report, we have compiled the 100-year GWP and 20-year GWP values of hydrofluorocarbon-based (HFC) refrigerants. Our table includes...

• Last update : 2023/09/15
• Langues : French, English
• Themes : HFCs

Cryogenics in the pharmaceutical industry: drug design and bioavailability improvement

Research activities in the pharmaceutical sector focus primarily on developing novel drug formulations which can elicit the desired response upon being administered to the patient...

• Last update : 2023/03/10
• Langues : French, English
• Themes : Freeze-drying in biology and medicine, Cryobiology, cryomedicine: general information