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Energy density enhancement of chemical heat storage material for magnesium oxide/water chemical heat pump.

• Author(s) : MYAGMARJAV O., ZAMENGO M., RYU J., et al.
• Publication date: 2015/12/05
• Languages : English
• Keywords : Hydroxide, Chemical heat pump, Lithium bromide, Performance, Material, Magnesium, Graphite, Thermal energy storage
• Source: Applied Thermal Engineering - vol. 91

Thermodynamic analysis of an electrochemically driven chemical looping heat pump.

• Author(s) : JAMES N. A., BRAUN J. E., GROLL E. A., et al.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Working fluid, Chemical heat pump, Cooling, Performance, Modelling, Organic compound
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Assessment of non-ideal chemical looping heat pump cycle.

• Author(s) : KIM J., BRAUN J. E., GROLL E. A., ZIVIANI D.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Chemical heat pump, Thermodynamic cycle, Fuel cell, Performance, Chemical reaction system, Modelling, COP
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

Comprehensive modeling of a chemical looping heat pump with a reverse fuel cell.

• Author(s) : KIM J., BRAUN J. E., GROLL E. A., ZIVIANI D.
• Publication date: 2021/05
• Languages : English
• Keywords : Loop, Chemical heat pump, Fuel cell, Energy saving, Modelling
• Source: 2021 Purdue Conferences. 18^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Techno-economic analysis for early-stage assessment of chemical looping heat pump technology.

• Author(s) : KIM J., BRAUN J. E., GROLL E. A., ZIVIANI D.
• Publication date: 2022
• Languages : English
• Keywords : Chemical heat pump, Cost, Air conditioning, Modelling, Case study, Electricity
• Source: 2022 Purdue Conferences. 19^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

The chemical looping heat pump: Thermodynamic modeling.

• Author(s) : JAMES N. A., BRAUN J. E., GROLL E. A.
• Publication date: 2019/02
• Languages : English
• Keywords : Loop, Thermodynamic property, Heat pump, Performance, Modelling, Condensation, Chemistry
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 98
• Formats : PDF

IIR document

Scalability of chemical looping heat pump technology.

• Author(s) : KIM J., JAMES N. A., GROLL E. A., BRAUN J. E., ZIVIANI D.
• Publication date: 2020/07/31
• Languages : English
• Keywords : Heat pump, Thermodynamic property, Residential building, Simulation, Cooling capacity, Modelling, Performance, COP
• Source: IIR Rankine Conference 2020.
• Formats : PDF

Recommended by the IIR / IIR document

Is chemical HFO refrigerants a solution for heat pumps?

• Author(s) : HOFFMANN K., GERRITSEN J.
• Publication date: 2021/09/16
• Languages : English
• Keywords : HFO, R1234yf, Global warming, Toxicity, Heat pump, Health, Review, Industrial application
• Source: 9^th IIR Conference on Ammonia and CO₂ Refrigeration Technologies. Proceedings: Ohrid, North Macedonia, 16-17 September, 2021
• Formats : PDF

IIR document

Evaluation metrics of electrochemically active working fluids for heat pumping cycles.

• Author(s) : KIM J., BRAUN J. E., GROLL E. A., ZIVIANI D.
• Publication date: 2023/08
• Languages : English
• Keywords : Chemical heat pump, Heat pump, Thermodynamics, Working fluid, Prediction
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 152
• Formats : PDF

3D CFD simulations of acetone hydrogenation in randomly packed beds for an isopropanol–acetone–hydrogen chemical heat pump.

• Author(s) : PENG W., XU M., HUAI X., et al.
• Publication date: 2016/02/05
• Languages : English
• Keywords : CFD, Mass transfer, Heat transfer, Simulation, Heat pump, Hydrogen, Acetone
• Source: Applied Thermal Engineering - vol. 94

Recommended by the IIR / IIR document

Organic Rankine cycles combined with thermochemical heat transformers to enhance the power output from waste heat.

• Author(s) : MANENTE G., DING Y., SCIACOVELLI A.
• Publication date: 2020/07/31
• Languages : English
• Keywords : Organic Rankine cycle, Heat pump, Waste heat, Heat recovery, Chemical heat pump, Thermodynamic property, Thermodynamic cycle, Electricity, Modelling, Performance
• Source: IIR Rankine Conference 2020.
• Formats : PDF

Recommended by the IIR / IIR document

Experimental development and investigation of a CO2-based air-to-air heat pump for food drying.

• Author(s) : KÆRN M. R., NIELSEN J. S., BERMAN A. M., OMMEN T. S., ELMEGAARD B., HAIDER S.
• Publication date: 2022/06/13
• Languages : English
• Keywords : Air-air, Food industry, Chemical heat pump, Drying, Internet of Things, Expérimentation, CO2, R744
• Source: 15^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15^th 2022.
• Formats : PDF

IIR document

A Methodology and bench design for experimental study of heat pump thermodynamic cycles using CO2 based mixtures.

• Author(s) : BOUTEILLER P., TERRIER M. F., TOBALY P.
• Publication date: 2016/08/21
• Languages : English
• Keywords : Chemical composition, Measurement, R744, Heat pump, Mixture, Thermodynamic cycle
• Source: 12^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2016). Proceedings. Édimbourg, United Kingdom, August 21st-24th 2016.
• Formats : PDF

Online, non-intrusive composition measurements of circulating CO2 based mixtures in an experimental heat pump by means of infra-red spectroscopy.

• Author(s) : BOUTEILLER P., TERRIER M. F., BARBA-GARRANCHO M. I., et al.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Spectrometry, Infrared, Chemical composition, Measurement, R744, Heat pump, Mixture
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Evaluation of system-level performance of closed strontium bromide thermochemical energy storage systems for space heating.

• Author(s) : RIVERA K., ODUKOMAIYA A., WOODS J., FRONK B.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Chemical heat pump, Thermal energy storage, Thermodynamic cycle, Modelling, Heat pump, Heating, COP, Energy consumption, Simulation, Residential building, Household application
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

2005 AHR Expo Innovation award winners

The winners of the third annual AHR (Air Conditioning, Heating and Refrigeration) Expo Innovation awards will be honoured during a ceremony during the 2005 AHR Expo in Orlando, Florida, on February 8, 2005. The product entries were judged for...

• Publication date : 2004/12/22

Assessing the market potential of industrial heat pumps in Europe

To address the lack of product development of high temperature heat pumps, a recent article provides manufacturers with an estimate of the industrial heat pump market potential in...

• Publication date : 2021/11/30
• Subjects: Figures, economy, Technology

Heat pumps : the core technology for sustainable heating

A recent report by the IEA highlights that heat pumps are essential to reducing the use of natural gas for heating, while improving energy security, reducing emissions and ensuring...

• Publication date : 2023/01/26
• Subjects: Environment

China: a direct leap from HCFCs to natural refrigerants?

Released for public consultation in June 2015 by China’s Ministry of Environmental Protection, the First Catalogue of Recommended Substitutes for HCFCs lists 12 substitutes for HCFC refrigerants, foaming agents and detergents, ten of which are...

• Publication date : 2015/11/11

Next generation of working pairs in absorption heat pumps

The history and latest developments in working pairs for absorption heat pumps were discussed in a recent review article.

• Publication date : 2023/01/26
• Subjects: Technology

Novel desiccant materials for more energy-efficient AC systems

Teams of researchers at MIT and at Texas A&M University have developed novel desiccant materials that could lead to more energy-efficient and economical room air conditioners and...

• Publication date : 2021/04/28
• Subjects: Technology

Potential of natural refrigerants in China, the case of the heat pump market.

Summary of a paper presented during the 12th IIR Gustave Lorentzen conference on Natural refrigerant, available in Fridoc.

• Publication date : 2017/02/06

ICR2019: overview of current refrigeration research topics (part IV)

Energy storage, desiccant air conditioning, high-temperature heat pumps and ejector technologies were some of the salient topics of the latest IIR Congress. Continuation of the synthesis of key presentations of ICR2019.

• Publication date : 2019/10/30

Ohrid 2019: latest technology trends for ammonia and CO2

Synthesis of several refrigerating installation case studies using ammonia and CO2 based on papers from the recent IIR conference in Ohrid.

• Publication date : 2019/05/29

Purdue conferences highlights: development of high-temperature heat pumps

High-temperature heat pumps are currently subject to intense R&D work, as illustrated by several papers presented at Purdue last year. All Purdue papers can now be downloaded from the Fridoc database.

• Publication date : 2019/02/28

Prototype wine cooler using magnetic refrigeration

A prototype wine cooler using magnetocaloric technology was presented at the Consumer Electronics Show in Las Vegas in January 2015.

• Publication date : 2015/01/29

Road to COP28. Extending the temperature range and application for heat pumps

To promote decarbonation, “high temperature heat pumps should be designed using waste heat and renewables as a driving energy, and environmentally friendly working fluids”, according...

• Publication date : 2023/05/30
• Subjects: Technology

Next-generation HVAC technologies

The U.S. Department of Energy (DOE) recently announced nearly USD 8m to advance research and development of next-generation HVAC technologies offering significant energy and cost savings in new and existing buildings.

• Publication date : 2015/10/23
• Subjects: Technology

Focus on the new refrigerant HCFO1224yd(z)

The Japanese chemicals manufacturer Asashi Glass Chemicals developed a new refrigerant as an alternative to R245fa.

• Publication date : 2017/11/06

The US Environmental Protection Agency (EPA) updates its list of low GWP refrigerants

The US EPA has added new lower GWP refrigerants and expanded the acceptable uses of others in its latest changes to the Significant New Alternatives Policy (SNAP) programme.

• Publication date : 2017/08/24
• Subjects: HFCs alternatives, Environment

Corporate Members: news

- Danfoss has experienced booming sales 18% growth over the first three quarters of 2007. Sales reached 2.2 billion €. Growth in China and Latin America was particularly positive and end of year sales are expected to top 3 billion €.

• Publication date : 2008/02/12

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...

• Publication date : 2023/10/24

New IIR Informatory Note on high-temperature heat pumps

IRR’s latest Informatory Note demonstrates that high-temperature heat pumps are a key technology in the decarbonisation of process industries. 

• Publication date : 2021/10/22

Rankine 2020 conference highlights opportunities and challenges for the future

The IIR Rankine 2020 – Advances in Heating, Cooling and Power Generation conference was organised by the Institute of Refrigeration UK (IOR) as an ambitious 5-day online event running across July 27-31.  It...

• Publication date : 2020/08/19
• Subjects: Technology

World Refrigeration Day 2021 reaches every corner of the globe!

This year, seven organisations partnered with World Refrigeration Day to bring to the limelight the exciting career opportunities in fields relying on refrigeration.

• Publication date : 2021/09/08

The long awaited ICR2015 is underway!

Held every four years, this year ICR2015 welcomes 1,011 conference delegates from 55 countries, making it a truly global refrigeration event.

• Publication date : 2015/08/19

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.

• Publication date : 2015/05/15

New IIR Working Groups focus on core matters in refrigeration

IIR Working Groups (WGs) operate on a temporary basis and bring together specialists to work on projects concerning current technological, social or economic issues linked to refrigeration. Their aim is to promote development, provide knowledge...

• Publication date : 2018/10/02

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...

• Last update : 2023/06/30
• Langues : French, English
• Themes : Ice creams

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...

• Last update : 2023/06/23
• Langues : French, English
• Themes : LNG and LPG

Hydrocarbon refrigerants

Hydrocarbons such as R290 (propane), R600a (isobutane) or R1270 (propene/propylene) are low GWP non-toxic natural refrigerants with excellent thermodynamic properties. They offer an...

• Last update : 2022/06/22
• Langues : French, English
• Themes : Hydrocarbons, Containment, refrigerant charge reduction

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...

• Last update : 2023/11/07
• Langues : French, English
• Themes : Freezing of foodstuffs