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Electricity consumption prediction and variables sensitivity analysis of water source heat pump system in office building.

• Author(s) : ZHANG Y., ZHOU X., CHEN Z.
• Publication date: 2017/07/20
• Languages : English
• Keywords : Water-source system, Office, Energy consumption, Prediction, Heat pump, Air conditioning, Heating
• Source: 8th international conference on compressors and refrigeration, 2017.
• Formats : PDF

Recommended by the IIR / IIR document

Techno-economic control strategy optimization for water-source heat pump coupled with ice storage district cooling system.

• Author(s) : CHEN Q., WEI W., LI N.
• Publication date: 2022/06
• Languages : English
• Keywords : Modelling, Optimization, District cooling, Water-source system, Heat pump, Ice, Thermal energy storage
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 138
• Formats : PDF

Investigation on system performance of air source heat pump water heater with phase change material.

• Author(s) : LIU Z., WANG T., GAO N., ZHAO H., GAO Y.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Domestic heat pump, Air-source system, Water heater, PCM, CFD, Performance, Simulation, Domestic water, Optimization, COP
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

IIR document

Investigation of an air source heat pump water heating system working at wide temperature scale.

• Author(s) : CHEN J., CHEN Y., LUO X., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Hot water, Air-source system, Prototype, Domestic heat pump, Modelling, Expérimentation, Energy efficiency, Cycle, COP
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

Experimental research on a novel frost-free air-source heat pump water heater system.

[In Chinese. / En chinois.]

• Author(s) : WANG Z., WANG F., ZHENG Y.
• Publication date: 2015/02
• Languages : Chinese
• Keywords : Water heater, Dehumidification, Air-source system, Heat pump, Performance, PCM, Desiccant, Thermal energy storage
• Source: Journal of Refrigeration - vol. 36 - n. 161
• Formats : PDF

IIR document

Performance analysis of an R744 ground source heat pump system with air-cooled and water-cooled gas coolers.

• Author(s) : HU H., EIKEVIK T. M., NEKSA P., et al.
• Publication date: 2016/03
• Languages : English
• Keywords : Geothermy, Gas cooler, R744, Air, Heat pump, Performance, Ground-source system, Water, CO2
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 63
• Formats : PDF

IIR document

Impact of water volume on the energy saving potential of air source heat pump systems.

• Author(s) : LI H., YANG Q., XU Z., SHAO S., WANG Z., SUN X., WANG Y., XU C., ZHAO W.
• Publication date: 2021/10
• Languages : English
• Keywords : Domestic heat pump, Water, Air-source system, Cycle, Testing, Modelling, Calculation, Optimization, Energy consumption, Cost, Energy saving
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 130
• Formats : PDF

Development of LNG Vaporization Systems Applying Hybrid Ground Source Heat Pumps Combined Ground Heat Exchangers with Air-water Heat Exchangers.

• Author(s) : KATSURA T., SHOJI Y., AKAI H., NAGANO K., SHISHIDO J., ISHIKAWA M., YASHIMA Y., TANIFUJI K.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Hybrid system, LNG, Ground-source system, Air-water, Heat exchanger, Expérimentation, COP, Seasonal performance, Energy consumption, Heat pump
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

Recommended by the IIR

 Industrial heat pumps in Japan: current status and future prospects.

• Author(s) : KAIDA T., MUKAI T., HAMAYASHIKI T.
• Publication date: 2023/05/15
• Languages : English
• Keywords : Heat pump, Industrial application, Market, Survey, Japan, Water-source system, Air-source system
• Source: 14^th IEA Heat Pump Conference 2023, Chicago, Illinois.
• Formats : PDF

Heat pump system performance measurement in Annex 52.

• Author(s) : GEHLIN S., SPITLER J. D.
• Publication date: 2023/05/15
• Languages : English
• Keywords : Seasonal performance, Performance, Air-source system, Ground-source system, Water-source system, Air conditioning, Case study, COP, Europe
• Source: 14^th IEA Heat Pump Conference 2023, Chicago, Illinois.
• Formats : PDF

Simplified model for coefficient of performance calculation of surface water source heat pump.

• Author(s) : ZOU S., XIE X.
• Publication date: 2017/02/05
• Languages : English
• Keywords : Water-source system, Energy consumption, Heat pump, Modelling, COP, Water
• Source: Applied Thermal Engineering - vol. 112

Study on the performance of a newly designed cooling system utilizing dam water for internet data centers.

• Author(s) : ANKA S. K., BOAFO N. L., MENSAH K., BOAHEN S., LEE K. H., CHOI J. M.
• Publication date: 2022/12
• Languages : English
• Keywords : Data centre, Hybrid system, Free cooling, Forced convection, Expérimentation, Performance, Water-source system, Air-source system, Comparison
• Source: Energies - vol. 15 - 24
• Formats : PDF

IIR document

Deployment of data-mining short and medium-term horizon cooling load forecasting models for building energy optimization and management.

• Author(s) : TANVEER A., CHEN H., JANN S., et al.
• Publication date: 2019/02
• Languages : English
• Keywords : Water-source system, Building, Prediction, Heat pump, Modelling, Air conditioning, Cooling load
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 98
• Formats : PDF

IIR document

Experimental study on a water and air source high-temperature heat pump using a low GWP refrigerant.

• Author(s) : WATANABE C., NAKAMURA T., YAMADA M., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : COP, Expérimentation, High temperature, HFO, Heat pump, Air-source system, Low GWP, Hot water, R1234yf, R454C, Water-source system
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

Techno-environmental evaluation of a river-source heat pump system using a hot gas bypass valve.

• Author(s) : CHO H. K., SHIN H. H., HAM S. H., JEONG S. A., PARK K-T., KIM Y.
• Publication date: 2023/05/15
• Languages : English
• Keywords : Simulation, Heat pump, Water-source system, Hybrid system, Seasonal performance, COP, Cost, Modelling
• Source: 14^th IEA Heat Pump Conference 2023, Chicago, Illinois.
• Formats : PDF

Heat pumps

- Analysis of sales of heat pumps in Austria over 2003 and 2004 has shown good growth in the heating and controlled dwelling ventilation segments. The figures were compiled with the National Ministry for Transportation, Innovation and Technology,...

• Publication date : 2005/07/19

Solar absorption air conditioning

When do you need air conditioning? When it is hot and sunny. This is why Broad Air Conditioning, China, one of the world's largest manufacturers of direct-fired absorption chillers, has been focusing on solar absorption air-conditioning systems...

• Publication date : 2006/11/15

How to reuse the condensate water from air conditioners?

Review of the different uses of the condensate water rejected by air conditioners.

• Publication date : 2020/09/04
• Subjects: Developing country

Residential CO2 heat pump system for combined space heating and hot water heating

This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A theoretical and experimental study was carried out for a residential brine-to-water CO2 heat pump system for combined space heating and hot water heating - a...

• Publication date : 2004/11/24

The French Health Protection Agency (InVS) warns against Legionella outbreaks

In an official statement dated July 2004, the French Health Protection Agency called for vigilance with regards to the risk of Legionella outbreaks during summer 2004. In 2003, 1044 legionella cases were recorded in France and 129 patients died....

• Publication date : 2004/09/14

Climate control in the Gibraltar tunnel project

A project for a tunnel linking Punta Paloma in Spain and Malabata Point in Morocco and currently in preparatory phase raises some interesting and crucial climate control issues. Governments of both nations appointed the Swiss engineer Giovanni...

• Publication date : 2008/05/13

Brief: Protrait of an optimal system

With looming commitments under the Kyoto Protocol, energy efficiency in buildings, including in art galleries, is essential. Paintings not only require an aesthetic environment, but one in which the air temperature and humidity is controlled. The...

• Publication date : 2006/05/05

ASHRAE Technology Awards: winning project features green design

The ASHRAE Technology Awards recognize outstanding achievements by members who have successfully applied innovative building design in the areas of occupant comfort, indoor air quality (IAQ) and energy conservation. The designs incorporate ASHRAE...

• Publication date : 2005/06/14

LNG cold energy recovery for salmon aquaculture

A team of Korean researchersis proposing a novel application of LNG cold energy recovery for aquaculture. 

• Publication date : 2023/02/20
• Subjects: Technology

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)...

• Publication date : 2011/06/01

Ice storage

Ice storage is not only beneficial in economic terms, it is also energy-saving, noise-free and helps extend the life of the systems. It consists in keeping a certain amount of ice, as a way of storing "cold", in order to use it later. It was...

• Publication date : 2007/08/05

Briefs: Sustainable fishery in Namibia

Since November 2009, Hangana Seafood has a new pre-sorting facility in Walvis Bay harbour, Namibia, which uses ammonia as a refrigerant. The 2800 m² sorting facility has a 0°C chill room for holding unsorted fish, two 16°C temperature-controlled...

• Publication date : 2011/02/04

Alternative Cooling Technologies conference, London, 1st February 2005

This conference, which was co-sponsored by the UK Institute of Refrigeration and organised commercially by RAC magazine, was well attended with about 140 people present. It was arranged in five sessions. In the first session, speakers from UK...

• Publication date : 2005/02/11

Magnetic-bearing centrifugal compressors

This new compressor technology - presented at the 2003 AHR Expo in Chicago - may have a significant effect on the future of mid-range chillers and rooftop applications in water-cooled, evaporatively cooled and air-cooled chilled-water and...

• Publication date : 2004/07/27

Cryochemistry: chemical reactions accelerated by freezing

Surprisingly, some chemical reactions can be accelerated by freezing. The possible applications of studying such cryoreactions include the food and pharmaceutical cold chain, as well...

• Publication date : 2022/02/28
• Subjects: Environment, Technology

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

Latest news from B-Medical Systems, Epta and GEA, three IIR corporate members

B Medical Systems, a global leader in the vaccine cold chain, is expanding its production capacity due to the COVID-19 pandemic, Epta monitors R290 fridges in cashier-free store in Dubai and GEA provides a...

• Publication date : 2021/11/29

Cooling data centres: A major economic challenge

Larger data centres can use a staggering amount of energy just to ensure the day-to-day running of electronic equipment. As a result, these data centres can produce a great deal of heat, which require large-scale cooling systems in order to...

• Publication date : 2017/03/29

Member news: Latest news from Air Liquide

Air Liquid inaugurates a low-carbon hydrogen production unit and promotes the development of helium refrigeration. 

• Publication date : 2021/02/23

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

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

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...

• Last update : 2022/09/16
• Langues : French, English
• Themes : Caloric cooling (magnetocaloric, electrocaloric, elastocaloric and barocaloric cooling)

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...

• Last update : 2022/06/17
• Langues : English, French
• Themes : Nanofluids

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