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IIR document
Heat transfer at supercritical state for organic Rankine applications.
Development of equations of state for low global warming potential refrigerants based on supercritical flow calorimetry measurements.
Cryogenic calibration facility for supercritical helium venturi flowmeter.
A new model for studying the density wave instabilities of supercritical water flows in tubes.
Theoretical model for buoyancy-induced heat transfer deterioration under supercritical pressure.
Heat transfer of supercritical carbon dioxide flowing in a rectangular circulation loop.
Towards defining the optimal design parameters for a test setup studying heat transfer with carbon dioxide at supercritical conditions.
Molecular dynamics method for supercritical CO2 heat transfer: a review.
Supercritical fluids.
General heat transfer correlations for supercritical carbon dioxide heated in vertical tubes for upward and downward flows.
Experimental investigation of a low-temperature organic Rankine cycle (ORC) engine under variable heat input operating at both subcritical and supercritical conditions.
Numerical analysis of buoyancy effect and heat transfer enhancement in flow of supercritical water through internally ribbed tubes.
Experimental investigation on heat transfer characteristics of supercritical CO2 cooled in horizontal helically coiled tube.
Experimental study on turbulent convection heat transfer of supercritical CO2 in cooled inclined miniature tubes.
Cooling heat transfer and pressure drop of supercritical CO2 in wavy microchannels with consistent and opposite crests and troughs.
Refrigeration sector monitoring
5 results
Refrigeration’s contribution to CCS
Led by IFP (France), the European research project Cocate - which brings together 8 other research and industrial partners worldwide for a budget of 4.5 million € - tackles the problems of rolling out a shared transportation infrastructure capable...
IIR 2023 conference in Ohrid: focus on CO2 heat pumps
As demonstrated at the last IIR conference in Ohrid , heat pumps are a potential development area for the use of CO2, in particular for the thermal management of electric vehicles.
Complex cooling channels support the resurgence of aerospike engines
Initially conceptualised in the 1950s, aerospike rocket engines are now being demonstrated by several start-ups, featuring AI-generated and additively manufactured complex cooling channels.
IIR Cryogenics 2025 conference: Using Waste Cold Energy from Liquid Hydrogen to Save Energy on Nitrogen Liquefaction
F. Herzog et al. proposed recovering waste cold energy from liquid hydrogen production to help produce liquid nitrogen, thus saving energy on N2 liquefaction, while reducing the heat requirement for...
Cryogenic carbon capture technologies
Cryogenic carbon capture is in the early stages of development, however, several projects have achieved a Technology Readiness Level (TRL) of 6, for applications such as blue...
IIR news
1 result
Cryogenics and Low-Temperature Physics: New Horizons and Challenges
This Focus written by Ralf Herzog*, President of the IIR’s Cryophysics, Cryoengineering commission (Commission A1) for the Newsletter of the IIR is the third in a series of presentations of the activities and hot research topics handled by the...
Encyclopedia of Refrigeration
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...
