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Assessing the uncertainties of simulation approaches for solar thermal systems coupled to industrial processes.
Experimental Analysis of a High Temperature Heat Pump Using Stored Heat from a Solar Thermal System.
Investigation on a hybrid single/double effect solar absorption cooling system driven by Fresnel solar collector with thermal storage.
Comprehensive performance evaluation of a dual-function active solar thermal façade system based on energy, economic and environmental analysis in China.
Sistema solar de armazenamento de energia térmica com módulo de adsorção.
Solar thermal energy storage system with an adsorption module.
Heat pump assisted solar thermal system.
Appraisal of a building solar cooling plant. Building thermal behavior and absorption system performance assessment.
Enfriador solar mediante refrigeración por absorción adiabática utilizando energía solar a baja temperatura.
Adiabatic absorption solar chiller using low temperature solar energy.
Modelling of a solar heat for industrial process (ship) system using Fresnel collectors.
IIR document
Numerical assessment of the dynamic behavior of a solar-driven jet-ejector refrigeration system equipped with an adjustable jet-ejector.
Design of a heat pump assisted solar thermal system.
Study of the technologies for freeze protection of cooling towers in the solar system.
Implementation of different control strategies of heat pump coupled with thermal and electrical storages for a non-residential nZEB.
Low-carbon district heating: performance modeling of hybrid solar, heat pump, and thermal storage systems for district thermal energy in the United States.
Recommended by the IIR / IIR document
Possibility of cooling using PV/T solar panels with an ejector refrigeration cycle.
Refrigeration sector monitoring
65 results
Photovoltaic thermal system combined with adsorption cooling achieves 75% efficiency
Researchers from IBM Zurich research laboratory combined photovoltaic (PV) and solar thermal techniques in a high-concentration PV thermal (HCPVT) system to achieve efficient electrical cooling output without the need for extra cells.
Viability of an absorption solar cooling system in an isolated school in Mexico
A recent IJR article presents a simulation of the operating strategies and the results of the first experiments following the installation of a solar thermal absorption air conditioning system, installed in an...
Solar cooling: Perspectives in Australia
A paper by P. Kohlenbach and M. Dennis1 presented at the 9th IIR Gustav Lorentzen Conference on Natural Refrigerants in Sydney gave an outlook and future perspectives on solar cooling in Australia, focusing on a comparison between the current...
Sorption chillers
Sorption chiller technology is rapidly developing, especially that using solar energy. - As highlighted by Jacob and Kohlenbach* during the latest IIR Gustav Lorentzen Conference on Natural Working Fluids in Sydney, in Europe, numerous new...
Solar Air conditioning
With high summer temperatures, air-conditioning and thermal comfort are increasingly important issues, but raise the challenges of high energy consumption and of environmental consequences. Three recent projects use solar energy to operate...
Brief: solar cooling on the rise
The European Solar Thermal Industry Federation (ESTIF) presented its statistics for the European market including all 25 member states. Results showed 12% growth in 2004, predicted to continue into 2005. At the time of the survey there were...
Solar cooling: Plans for air-conditioned stadiums in Qatar
When Qatar won the bid to host the 2022 football World Cup in December 2010, it came as a surprise. One of the major causes of scepticism was the average summer temperatures of over 40°C with recent peaks at 50°C. But central to Qatar's bid was a...
ICR2019: focus on innovative refrigeration technologies for developing countries
Several papers presented during the IIR International Congress of Refrigeration in August 2019 addressed advances in the refrigeration technologies that are particularly adapted to hot countries with limited electricity supply: solar...
R&D
The US Department of Energy's National Renewable Energy Laboratory (NREL) has developed a new air-conditioning system combining membranes, evaporative coolers and desiccants into a single device with the objective to suit to all climates,...
Briefs: solar air-conditioning prototype
As part of the European programme Solera, CEA LITEN researchers recently set up a 4.5-kW solar air-conditioning prototype in the facilities of the INES (French National Institute of Solar Energy) in Chambéry in the French Alps, where the system...
Solar heating and cooling: key trends and challenges
In 2020, the solar thermal energy yield amounted to 407 TWh, which correlates to savings of 43.8 million tons of oil and 141.3 million tons of CO2. Although still only a niche market, solar cooling...
Eco-friendly cooling for Tokyo’s Haneda Airport
The new international terminal of Haneda Airport opened in October 2010. It uses a combination of geothermal energy, solar power and cogeneration systems to reduce energy consumption and is also the first airport to use sodium sulphur (NaS)...
GL2012 highlights: photovoltaic vs solar thermal cooling in Europe
In their paper presented during the 10th IIR Gustav Lorentzen Conference on Natural Refrigerants in June 2012, Kohlenbach et al. give an outlook of the current and potential situation of solar cooling in Europe.
Briefs: Japanese programme for next generation heat pumps
The Ministry of Economy, Trade and Industry (METI) in Japan has set up the Next Generation Heat Pump Research Council within the New Energy and Industrial Technology Development Organisation (NEDO) in order to examine concrete research proposals....
Worlwide market for solar thermal air-conditioning and cooling applications
Approximately 80% of the solar thermal cooling installations worldwide are installed in Europe, most notably in Spain, Germany and Italy.
IIR news
9 results
Heat pumps, the central theme of the recent IIR Congress
An overview of the research carried out in the field of heat pumps, with the aim of achieving greater flexibility and increased energy efficiency, in particular through to the use of thermal energy...
ICR 2011 in Prague: a Resounding Success
The 23rd IIR International Congress of Refrigeration held in Prague, on August 21-26, 2011, was highly successful...
New IIR Informatory Note on thermal energy storage systems
IIR’s latest Informatory Note demonstrates that a well-designed TES system can reduce energy consumption through more efficient equipment operation and lower investment costs, thus reducing the equipment...
New IIR Informatory Note on Solar Cooling
Discover the latest IIR Informatory Note that provides a detailed analysis of solar cooling: an environmentally friendly and promising technology.
New IIR Informatory Note on Renewable Energy
The latest IIR Informatory Note stresses that renewable energy sources can be considered practically inexhaustible and are currently the only solution for an ecological transition to clean...
New EU funded project began on October 1st, 2021: “SophiA - Sustainable off-grid solutions for pharmacies and hospitals in Africa”
With a budget of 8 million euros over four years, SophiA will develop containerized solutions for hospitals using natural refrigerants, solar thermal and photovoltaics to enable more and more African people to...
Download the new IIR Informatory Note on Solar Cooling
Solar cooling may have a very positive environmental impact reducing the usage of fossil fuel, and the technology is almost mature enough to compete with conventional cooling equipment.
IJR Editorial: Solar energy, the energy of the future for refrigeration
Solar refrigeration should become a means of providing cleaner air conditioning and developing cold chains for food and health products where they are still deficient. We need to accompany this development while...
Spotlight on Commission B2: at the forefront of refrigerating equipment
Coordinated by the IIR Science and Technology Council, Commission B2 focuses on promoting knowledge of refrigerating equipment technologies and their applications worldwide.
Encyclopedia of Refrigeration
4 results
Nanorefrigerants
Nanorefrigerants are created by adding nanoparticles in suspension to a base refrigerant. They have a thermal conductivity that is 15% to 104% higher than that of the corresponding...
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...
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...
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...
