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Experiments on part load performance of ground source variable refrigerant flow system in winter.
[In Chinese. / En chinois.]
Experimental performance estimations of horizontal ground heat exchangers for GSHP system.
Fundamental investigation of whole-life power plant performance for enhanced geothermal systems.
IIR document
Study on a design method for hybrid ground heat exchangers of ground-coupled heat pump system.
Improvement of thermal conductivity of grout mixture for geothermal heat pump systems.
Investigation on a ground source heat pump system integrated with renewable sources.
Variable water flow control of hybrid geothermal heat pump system.
Development of LNG Vaporization Systems Applying Hybrid Ground Source Heat Pumps Combined Ground Heat Exchangers with Air-water Heat Exchangers.
Integration of supermarket’s CO2 refrigeration system and geothermal storage.
Geothermal storage integration into a supermarket's CO2 refrigeration system.
Abnormal energy consumption detection for GSHP system based on ensemble deep learning and statistical modeling method.
Ground source heat pump systems for energy efficient building retrofitting.
Heating and cooling performance of a minitype ground source heat pump system.
Numerical analysis of energy and entransy regarding vertical borehole heat exchangers in ground-source heat pump systems.
Design and optimized operational strategy of a district cooling and heating system based on ground source heat pumps.
Refrigeration sector monitoring
19 results
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...
Reducing the economic costs of a direct-use geothermal heating system
Italian researchers have modelled a polymer heat exchanger to reduce the cost of a direct-use geothermal heating system for a single building in the active volcano district of the...
Recent geothermal energy-based district cooling projects
In December 2023, district cooling projects using geothermal energy were launched in France and the United Arab Emirates.
Road to COP28. Energy efficiency and recovery of refrigerants
“Sustainability must refer to energy efficiency and circularity”, says Dr Laura Fedele, IIR expert.
China heat pump market in 2023
Although the country still relies heavily on coal for heating, China is currently the only major market where heat pumps sales grew in 2023, when global sales declined by 3%...
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.
Martinique: a geothermal cooling network project
Storengy and TLS Geothermics have been granted a research permit to explore the subsoil of Martinique and the potential of geothermal energy. Engie Solutions will bring its expertise in heating and cooling...
Geothermal energy to power a cold storage facility
Two remote off-grid villages on a Fijian island are looking forward to their first reliable source of refrigeration thanks to their local hot spring.
5th generation district heating and cooling networks in Europe
A recent generation of district heating and cooling networks is developing in Europe, using low temperature renewable energy heat sources (such as shallow...
French heat pump market situation
The total market showed an increase of sales in 2014 with a little over 192 967 units sold. This is a rise of 27% compared to 2013.
Design and operation of district heating and cooling systems supplied by renewable energy sources
A report published by the European Commission analyses 8 efficient district heating and cooling systems in different Member States.
R1234yf as a working fluid in Organic Rankine Cycle systems
A recent review article presented the use of HFO R1234yf and its mixtures in Organic Rankine Cycle (ORC) systems, namely in applications for waste heat recovery from internal...
IIR Rankine Conference 2020: Which alternative working fluids for ORC systems?
HFOs (hydrofluoroolefins), HCFOs (hydrochlorofluoroolefins) and hydrocarbons were the main alternatives to HFC245fa presented during the IIR Rankine Conference 2020.
Heat pump efficiency at low temperatures
A study based on field data shows that heat pumps had significantly higher energy efficiency than oil or gas heating systems, particularly for outdoor temperatures above -10°C.
Heat pump sales in France
2013 Air-air Heat pumps (HPs) sales show significant increase
IIR news
2 results
Hot off the press: Handbook on Indirect Refrigeration and Heat Pump Systems
Be the first to read the newly published IIR Handbook on Indirect Refrigeration and Heat Pump Systems.
Add the latest refrigeration publications to your bookshelf!
Check out the latest IIR publications including CO2 as a Refrigerant, Handbook on Indirect Refrigeration and Heat Pump Systems and the 1st IIR International Conference of Cryogenics and Refrigeration Technology (ICCRT 2016).
