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A numerical modelling study on submerged condensers for heat pump water heaters using low-GWP refrigerants.

• Author(s) : ZHANG M., SHEN B.
• Publication date: 2022
• Languages : English
• Keywords : Propane, Domestic heat pump, Water heater, Modelling, Low GWP, Simulation, CFD, R290
• Source: 2022 Purdue Conferences. 19^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Recommended by the IIR / IIR document

Experimental results of a high-temperature heat pump prototype with R1336mzz(Z) for various production temperatures.

• Author(s) : MOTA BABILONI A., BARRAGÁN-CERVERA A., UDROIU C-M., GIMÉNEZ-PRADES P., NAVARRO-ESBRÍ J.
• Publication date: 2023/08/21
• Languages : English
• Keywords : High temperature, Heat pump, R1336mzz(Z), Expérimentation, Prototype, Waste heat, COP, Low GWP, R245fa
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Experimental investigation of high-glide refrigerant mixture R1233zd(E)/R1234yf in a high-temperature heat pump.

• Author(s) : BRENDEL L. P. M., BERNAL S. N., ARPAGAUS C., WIDMAIER P., ROSKOSCH D., BARDOW A., BERTSCH S. S.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Zeotropic mixture, High temperature, Heat pump, R1233zd(E), R1234yf, Expérimentation, COP, Glide, HFO, Industrial application, Thermodynamic cycle, Modelling
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Experimental assessment of the use of R515B as R1234ze(E) alternative in a small water-to-water heat pump.

• Author(s) : COLOMBO L. P. M., FRIGERIO D., LUCCHINI A., MOLINAROLI L.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Expérimentation, R515B, R1234ze(E), Water-water, Heat pump, Drop-in, COP, Testing
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Une nouvelle approche d'optimisation de pompe à chaleur tenant compte du couplage entre les réservoirs thermiques et le cycle.

• Author(s) : FEIDT M., COSTEA M.
• Publication date: 2021/12
• Languages : French
• Keywords : Heat pump, Optimization, Carnot, Cycle, Reversed cycle, Tank, COP, Energy consumption, Review, Modelling
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 132
• Formats : PDF

Vazdušne toplotne pumpe kao obnovljiv izvor energije?

Air source heat pumps as renewable energy sources?

• Author(s) : CICONKOV R., PANEV S., CICONKOV V.
• Publication date: 2014/12/03
• Languages : Serbian
• Keywords : Renewable energy, Building, Air, Heat pump, COP
• Source: Zbornik radova. 45. Medunarodnikongres i izložba o grejanju hladenju i klimatizaciji./ Proceedings. 45th International congress and exhibition on heating, refrigeration and air conditioning (HVAC&R).
• Formats : PDF

Visoko temperaturne industrijske toplotne pumpe sa turbokompresorskom termokompresijom.

High temperature industrial heat pumps with turbo compressor thermo compression.

• Author(s) : SAREVSKI M., SAREVSKI V.
• Publication date: 2014/12/03
• Languages : English
• Keywords : Industrial application, Heat pump, High temperature, Evaporation, Condensation, Compression, Water, Centrifugal compressor
• Source: Zbornik radova. 45. Medunarodnikongres i izložba o grejanju hladenju i klimatizaciji./ Proceedings. 45th International congress and exhibition on heating, refrigeration and air conditioning (HVAC&R).
• Formats : PDF

Sistemi sa bušotinama ili toplotne pumpe vazduh-voda. Koje rešenje koristiti i na kojoj lokaciji.

Borehole installations or air to water heat pumps. What to use and where.

• Author(s) : NIELSEN G.
• Publication date: 2016/12
• Languages : English
• Keywords : Economy, Comparison, Air-water, Heat pump, Installation (implementation), Energy efficiency
• Source: 47^th International HVAC&R Congress and Exhibition.
• Formats : PDF

Ušteda energije za grejanje i hladenje zgrada kombinovanom instalacijom toplotne pumpe i sunceve energije (KITPS).

Energy saving for buildings heating and cooling using combined solar-heat pump installations (CSHPI).

• Author(s) : BERDYBAEVA M.
• Publication date: 2014/12/03
• Languages : English
• Keywords : Solar collector, Building, Cooling, Solar radiation, Heat pump, Performance, Mixed system, Solar energy, Energy saving, Heating
• Source: Zbornik radova. 45. Medunarodnikongres i izložba o grejanju hladenju i klimatizaciji./ Proceedings. 45th International congress and exhibition on heating, refrigeration and air conditioning (HVAC&R).
• Formats : PDF

Recommended by the IIR / IIR document

Heat pumps.

• Author(s) : LAZZARIN R.
• Publication date: 2017
• Languages : English
• Keywords : Heat pump, Market, Generality
• Formats : PDF

Uravnoteženje toplog i hladnog. kako naci optimalnu temperaturu tople vode za industrijske visokotemperaturske amonijacne toplotne pumpe.

Balancing hot and cold. How to find the optimum delivery temperature for an industrial high temperature ammonia heat pump.

• Author(s) : NIELSEN G.
• Publication date: 2014/12/03
• Languages : English
• Keywords : Refrigerating system, Industrial application, Temperature, Ammonia, Heat pump, Optimization, Dairy, High temperature, Energy efficiency
• Source: Zbornik radova. 45. Medunarodnikongres i izložba o grejanju hladenju i klimatizaciji./ Proceedings. 45th International congress and exhibition on heating, refrigeration and air conditioning (HVAC&R).
• Formats : PDF

IIR document

A refrigerant charge prediction method based on pump down operation validated using residential and commercial heat pump systems.

• Author(s) : LI Z., SHEN B., WELCH D., GLUESENKAMP K.
• Publication date: 2024/08
• Languages : English
• Keywords : Heat pump, Refrigerant charge, Prediction, Safety, Reliability, Control (generic)
• Source: 16^th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2024). Proceedings. University of Maryland, College Park, Maryland, USA, August 11-14 2024
• Formats : PDF

Thermoelectric heat pump performance characterization.

• Author(s) : PATEL V. K., GLUESENKAMP K. R., BOUDREAUX P.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Thermoelectricity, Heat pump, Performance, Expérimentation, Minichannel, Heat exchanger
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

Modular heat pumps: energy performance.

• Author(s) : ALBIERI M., FALDELLI P., MASOCH A., et al.
• Publication date: 2014/11
• Languages : English
• Keywords : Renewable energy, Heat pump, Performance, Reliability, Energy efficiency
• Source: REHVA Journal - vol. 51 - n. 6

World heat pumps and key components.

• Publication date: 2015/08/25
• Languages : English
• Keywords : Air-water, Statistics, Heat pump, World, Market
• Source: JARN - n. 559-S

Future developments in magnetocaloric refrigeration and heat pumping.

Summary of a paper presented during the 7th International Conference on Magnetic Refrigeration at Room Temperature (Thermag VII), available in Fridoc.

• Publication date : 2017/02/08

MOP35: aid funds against dumping of inefficient cooling equipment

At MOP35, it was decided to allocate more aid funds to developing countries and to take measures against the dumping of inefficient cooling equipment containing obsolete...

• Publication date : 2023/11/17
• Subjects: Regulation, Developing country

For IIR members only

Must read: evidence and guidelines against dumping of inefficient cooling equipment in developing countries

The IGSD compiled a resource guide to inform stakeholders on environmentally harmful dumping of new but energy-inefficient cooling equipment that uses high global-warming-potential...

• Publication date : 2024/10/24
• Subjects: Developing country

CHEs in heat pumps

In its Annex 33, "Compact Heat Exchangers in Heat Pumping Equipment" issued in September 2010, the Heat Pump Programme details the benefits of using compact heat exchangers (CHEs): . Improved heat exchanger thermal effectiveness: thermal...

• Publication date : 2011/02/07

IIR conference report: Padua

 Two IIR events organized by Prof. Renato Lazzarin have just been held in Padua, Italy: - Sources/Sinks alternative to the outside Air for Heat Pump and Air-Conditioning Techniques took place on April 5-7, 2011. Heat sources and heat sinks of...

• Publication date : 2011/05/19

Cool IT: a new use for CO2

Carbon dioxide offers a new optimum cooling medium for IT facilities. Electrically benign, and therefore non-hazardous to servers and cabling, it is seven times more efficient at cooling than water: CO2 permits reduced volume flows and smaller...

• Publication date : 2006/05/05

Refrigerant news: Training in CO2

- NVKL, the Dutch association of contractors, distributors and manufacturers, recently opened the first training centre of natural refrigerants in Europe. The new training centre is located in Ede, the Netherlands. It comprises: detection and...

• Publication date : 2011/02/07

A Refrigerated Noah’s ark

Svalbard Global Seed Vault, on the Norwegian island of Spitzbergen, which has officially opened on February 26, 2008, is designed to be a fail-safe repository for the world's food crops. It has the capacity to store up to 4.5 million seed samples...

• Publication date : 2008/02/12

Mine cooling

Cooling the world's deepest single-shaft mine: cooling Anglogold Mponeng gold mine in Gauteng, South Africa, is a challenge - the mine is 3.68 km deep and without cooling, temperatures can reach 60°C at the mine face. Six 3.5 MW Eco-Vim...

• Publication date : 2006/01/28

Micro-refrigeration

Future computer chips will probablly generate 10 times more heat than today's microprocessors and will require new types of cooling systems. Currently, computers are usually cooled thanks to fans and small finned devices called heat sinks, but the...

• Publication date : 2008/08/12

Japanese households don’t make the most of reversible heat pumps

Despite a high market penetration, less than half of Japanese households use their reversible heat pumps for heating.

• Publication date : 2024/02/23
• Subjects: General information

The heart inspires a new cooling system

In August 2004, at the Micro Nano Breakthrough Conference in Portland, engineers from Oregon State University in the US, presented a new successful desorption system using branching microchannels. The system was inspired by the human blood pumping...

• Publication date : 2004/09/14

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

ICR 2019: an overview of current refrigeration research (part II)

Presentation of the main scientific and technical topics covered in the papers of the 25th IIR International Congress of Refrigeration and summary of some of the 14 keynotes.

• Publication date : 2019/09/30
• Subjects: HFCs alternatives

Ammonia and hard ice revolutionizing the mining industry

Temperatures in mines can exceed 60°C, so keeping the underground cool and safe for workers represents an enormous challenge for the mining industry.

• Publication date : 2015/05/12

IIR Working Group publishes Guidelines for Life Cycle Climate Performance

The Guidelines for Life Cycle Climate Performance (LCCP) provide a harmonised method to calculate the LCCP for all types of stationary air conditioning, heat pumping and refrigeration systems.

• Publication date : 2016/01/27

New IIR publication

The CD-ROM proceedings of Ammonia Refrigerating Systems, Renewal and Improvement, an IIR conference held in Ohrid, Macedonia (FYROM), on May 6-8, 2005, comprise 29 papers spanning a wide range of ammonia applications. Key topics: past, present and...

• Publication date : 2005/07/19

Past events: The IIR around the world

Focus on ammonia, cryogenics and heat pumps! Take a look back at the most recent events in which the IIR has participated. 

• Publication date : 2023/05/27

Summer 2021, past events: focus on the last events involving the IIR

Co-sponsored Conferences    More than 80 papers available from the International Sorption Heat Pump Conference...

• Publication date : 2021/09/07

Activities of the IIR’s Commission E2 “Heat Pumps, Energy Recovery”

Presentation of IIR Commission E2 activities by Per Lundqvist, President of Commission E2

• Publication date : 2015/05/22

Workshop on Supermarkets during the 5th IIR Conference on Sustainability and the Cold Chain

The workshop had the aim of presenting recent findings by the UK EUED joint project on supermarkets, the SuperSmart project and the HPT Annex44 project.

• Publication date : 2018/04/19

CEEE Hosts International Conference THERMAG - IX 2021

More than 200 people from around the world attended the THERMAG - IX June 7-11, 2021 hosted by The Center for Environmental Energy Engineering at University of Maryland, College Park (US).

• Publication date : 2021/07/20
• Subjects: Technology

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 : English, French
• Themes : Freezing of foodstuffs