Main menu
Search results
Search in FRIDOC
1078 results
Thermal performance and pressure drop of spiral-tube ground heat exchangers for ground-source heat pump.
Critical Review on Efficiency of Ground Heat Exchangers in Heat Pump Systems
Heat transfer in horizontal ground heat exchangers.
IIR document
Study on a design method for hybrid ground heat exchangers of ground-coupled heat pump system.
Optimisation of a novel dry air-ground source (DAGS) heat pump system.
Heating and cooling performance of a minitype ground source heat pump system.
Development and application of ground heat exchanger model using response factor method.
Analysis of ground source heat pump systems in residential buildings.
Cost optimized design of ground probe fields with solar regeneration.
Experimental performance estimations of horizontal ground heat exchangers for GSHP system.
Performance analysis of ground source heat pump system with vertical borehole heat exchangers affected by rapid groundwater flow.
Financial optimization and design of hybrid ground-coupled heat pump systems.
Thermal performance of ground source heat pumps that use direct expansion system.
Progress in ground-source heat pumps using natural refrigerants.
Simplified ground-source heat pump models for predicting heat extraction.
Refrigeration sector monitoring
577 results
USA's largest ground-source heat pump
The conversion of Ball State University in Muncie, Indiana, to a geothermal ground-source heat pump, reportedly the largest project of its kind in the USA, has entered its second and final phase.
Briefs: US supermarkets: CO2 gains ground
Being already largely used in Europe, CO2 refrigeration systems might see important development in North American supermarkets. The medium-size retail chain Price Chopper Supermarkets has installed a cascade system using CO2 in the low-temperature...
Turnaround of the ground-source heat-pump market in Japan
After having declined steadily between 2006 and 2010, the ground-source heat pump market in Japan showed 26% growth in 2011 compared with 2010.
CO2 is gaining ground in North-American supermarkets
In Canada, according to the shecco “GUIDE 2013: Natural Refrigerants - Market Growth for North America,”over 65 food-retail stores use or have made a purchase order for CO2 secondary, cascade, or transcritical refrigeration systems. CO2 is also...
London: a look underground
Despite a £100 000 prize and several thousand entries from all over the world, the competition launched in London to find innovative new solutions to cool its underground system has failed to find a winner. The competition was first reported by...
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,...
Underground river to cool the London tube
The "Cooling the Tube" competition in 2003, promising GBP 100 000 to those finding a workable solution to cool the Tube, received 3400 entries. Modern systems with large tunnels and surface lines can be cooled using air-cooling systems. However,...
Efficiency of ground source heat pump systems
Ground source heat pumps (GHSP) have been reported to be more efficient than more widespread air source heat pumps despite higher installation costs. A recent article has reviewed parameters impacting the energy...
A ground source heat pump at Cornell
The Bloomberg Center at the tech campus of Cornell University (New York, USA) was recently equipped with a Ground Source Heat Pump (GSHP).
The high potential of ground-source heat pumps to decarbonise the European building sector
A potential reduction of 20-40% and 30-50% of energy demand in buildings, for heating and cooling respectively, could be achieved through increased use of geothermal heat pumps.
Discussion around solar fridges in Africa
A manufacturer from Swaziland recently presented three new SolarChill prototypes operating with hydrocarbon refrigerant at a side event of the Open Ended Working Group to the Montreal Protocol held in Geneva and attracted a lot of interest from...
A promising solar heat pump system for cold climates
A simulation of a novel solar-assisted ground source heat pump system shows promising results for improved energy efficiency and reduced soil freezing in cold climates.
New temperature-controlled facility at Memphis International Airport
FedEx Express is breaking ground on a new cold-storage facility.
Geothermal heat pumps on the rise
Geothermal (ground-source) heat pumps (GHPs) are one of the fastest growing applications of renewable energy in the world with worldwide annual growth rate which exceeded 10% over the past 10 years.
Non-residential air-conditioner market growths in 6 European countries
The non-residential air-conditioner market in Europe Top 6 (Italy, Spain, France, UK, Germany, Poland) is continuing to slowly recover lost ground since the last recession.
IIR news
154 results
Past events: The IIR around the world, August and September 2024
A look back at the IIR’s latest events during conferences (Gustav Lorentzen, Thermag, Compressors) and during sponsored vents (CHPC).
Past events: The IIR around the world
Focus on ammonia, cryogenics and heat pumps! Take a look back at the most recent events in which the IIR has participated.
The IIR around the world: October 2023
A look back at the IIR's latest events at Refcold in India, the ESEF forum in Praia, Cabo Verde, and the SIFA trade fair in France.
Past events: The IIR around the world, october 2022
A look back at the latest events in which the IIR participated.
Past events: The IIR around the world, December 2022
IIR's participation in MOP 34 and the SIFA fair in Lyon.
Past events: The IIR around the world, April 2023
This month, the IIR conference on HFOs welcomed 200 delegates, and one of Asia's largest exhibitions in HVACR, China Refrigeration, set a new record with 60,000 visitors and 1,100 exhibitors.
The 21st European Conference on RACHP technologies is just around the corner
The 21st edition of the European Conference RACHP, co-organised by UNEP, IIR, and Centro Studi Galileo, will take place in Milano on June 12-13, 2025.
The IIR Congress 2019: An event to reunite refrigeration specialists from around the world
The year 2019 is going to be a very special one for researchers, students, experts and all those involved in the field of refrigeration. Not only will 2019 welcome the 25th International Congress of Refrigeration (ICR 2019), it will also be the...
International Network for Women in Cooling Launches Online Platform to Connect Women Professionals Around the Globe
Paris, 11 May 2023 — Today, the International Network for Women in Cooling (INWIC) officially launched its web service, available at
FRIDOC now features a selection of MDPI articles on refrigeration
About 150 articles from MDPI journals, including review articles on various refrigeration technologies, are available in FRIDOC.
Conference reports: Oran
LNG 16, a conference co-organized by the IIR, was held in Oran, Algeria, on April 18-21, 2010. In spite of the volcanic ash cloud that grounded many potential participants, LNG 16 attracted 1800 participants from 58 countries, and 674...
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.
The IIR is seeking a Deputy Director
The IIR is seeking for its head office in Paris a Deputy Director, with a scientific and technical background. The candidate should be a very good English and French speaker.
Discover BETTED’s new e-learning platform
The e-learning platform developed by the BETTED Team is now available and ready for use. It is dedicated to interested professionals from both participating and non-participating countries, as well as those...
News from IIR members: Danfoss
A pleasant indoor climate and no energy costs. This is what it feels like to live in the Zero+ house - the first home in Denmark that produces more power than is actually consumed. The house supplies its own heating and electricity and generates...
Encyclopedia of Refrigeration
8 results
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...
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...
Cold storage conditions for fruits and vegetables
Practical recommendations for the cold storage of over 200 cultivars of fruits, vegetables and herbs (storage temperatures, relative humidity, storage time, controlled atmosphere...
Environmental impact of the ice cream industry
This summary document describes the environmental impact of ice cream manufacturing, which is mainly due to the energy consumption and refrigerants used.
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...
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...
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...
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...
Events
4 results
Other event
15th IEA Heat Pump Conference
May 26, 2026 - May 29, 2026
Vienna, Austria
Join the 15th IEA Heat Pump Conference, which will take place in Vienna, Austria,from May 26-29, 2026! The 15th IEA Heat Pump Conference, co-sponsored by IIR,...
Find out more
21st International Conference & Exhibition on Liquefied Natural Gas (LNG2026)
February 02, 2026 - February 05, 2026
Doha, Qatar
Register...
IIR event
17th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL 2026)
August 23, 2026 - August 26, 2026
Hamilton, New Zealand
Submit your abstract! With the increasing need for global warming countermeasures, natural working fluids have become a clear vector to reducing the CO2 footprint of...
11th IIR Conference on Solid-State Cooling, Heating and Energy Harvesting
June 07, 2026 - June 11, 2026
Ljubljana, Slovenia
Submit your abstract now! The 11th IIR Conference on Solid-State Cooling, Heating and Energy Harvesting (Thermag 2026), to be...
