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IIR document
Study on connecting way of gas reservoir in a double-cold-finger pulse tube refrigerator.
Experimental comparison of the refrigerant reservoir position in a primary loop refrigerant cycle with optimal operation.
Construction of ideal process and performance analysis of absorption heat pump under constant-temperature heat reservoirs/sinks.
Thermo-ecological analysis and optimization of a three-heat-reservoir absorption heat pump with two internal irreversibilities and external irreversibility.
Une nouvelle approche d'optimisation de pompe à chaleur tenant compte du couplage entre les réservoirs thermiques et le cycle.
Thermodynamic optimization of an irreversible Carnot refrigerator with heat recovery reservoir.
Numerical investigation of pulse tube refrigerator with inertance tube-gas reservoir phase modulation.
Experimental study on the effect of the gas reservoir on the performance of a nitrogen-charged cryogenic grooved heat pipe.
A perturbation model for stratified thermal energy storage tanks.
A novel hybrid storage system integrating a packed-bed thermocline tank and a two-tank storage system for concentrating solar power (CSP) plants.
Inventory of LNG terminals with vacuum insulated tanks.
Thermodynamics of freezing water inside a self-pressurizing elastic tank and its departure from isochoric condition.
Optimizing thermal storage tanks containing PCMs.
Simulink based transient modeling of a flash tank vapor injection system and experimental validation.
A simplified method for modeling the thermal performance of storage tanks containing PCMs.
Refrigeration sector monitoring
27 results
NASA tests on composite cryotank successful
NASA recently completed a complex series of tests on one of the largest composite cryogenic fuel tanks ever manufactured,
Brazilian government outlines measures to reduce electricity consumption
Owing to severe droughts affecting hydropower generation, the Brazilian government is imposing measures to reduce electricity consumption in public buildings, including limiting the...
Quantum refrigerators: research is making progress
Two recent studies illustrate the progress of research on quantum refrigerators. Cooling applications for microelectronic compounds could be considered.
New legal framework for the development of small heat pumps in France
In France, as of 1 July 2015, the owners of geothermal systems “of minimal importance” will have access to a simplified declaration procedure.
Windcatchers: the birth of air conditioning and natural refrigeration?
Windcatchers, which can reduce indoor temperatures by around 10°C and store water at near-freezing temperatures during summer months, have been used over centuries in many regions around the world.
The first LNG freight locomotive in the Baltics
An Estonian company is testing the first LNG-powered locomotive in the Baltic countries. Significant reductions in greenhouse gas emissions are expected.
A mathematical study presents a general derivation and a quantifcation of the third law of thermodynamics
Two physicists from University College London have provided a derivation of the "unattainability principle", which states that any process cannot reach absolute zero temperature in a finite number of steps.
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...
Testing a prototype outdoor air conditioner using liquid nitrogen
In September 2022, a start-up is testing a prototype outdoor air conditioning system using liquid nitrogen in a few restaurants.
First liquefied hydrogen carrier launched in Japan
In line with its commitment to pave the way for the first "Hydrogen Society", Japan intends to use this carrier to transport hydrogen from Australia, where it is produced from lignite.
The expansion of refrigeration applications of Thermal Energy Storage and PCMs
Based on a selection of papers from two recent IIR conferences, overview of thermal energy storage and PCM applications in the fields of refrigerated transport, display cabinets, fishing vessels, food processing...
An award-winning industrial dairy using an integrated heat pump system
A recent case study examined the energy consumption and system performance of an innovative integrated heat pump system of a dairy located in Norway. This dairy was among the winning projects of the 2019 “Heat...
LNG-fuelled coaches with over 1000 km autonomy
Spanish bus manufacturer, Irizar, has launched a line of LNG coaches, promising a range of more than 1000 kilometres, along with reduced CO2 emissions.
Liquefied Natural Gas for trucks is coming to France.
Several manufacturers have already entered this new promising market that could represent up to 20% of road transport in 2025.
Autonomous cooling system for food deliveries in the city centre
Coldway Technologies is developing an electric scooter coupled with a self-contained cool box for food delivery in the city centre.
IIR news
1 result
Download the latest technical papers from the IIR Cryogenics Conference
Held on 8-11 April this year, the 15th IIR Cryogenics Conference welcomed over 120 guests from more than 22 countries.
Encyclopedia of Refrigeration
4 results
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.
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...
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...
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...
