Search results

IIR document

Thermo-economic and primary-energy-factor assessment based on the field test of an air-to-water heat pump.

• Author(s) : POREDOS P., COŽ T., KITANOVSKI A., et al.
• Publication date: 2017/04
• Languages : English
• Keywords : Seasonal performance, Depreciation, Heat pump, Testing, Primary energy, Heating, Air-water
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 76
• Formats : PDF

Heat pumps in existing heating and hot water systems: an evaluation of primary energy savings and reduction of CO2 produced.

• Author(s) : CARELLA A., FERRARO del L., ORAZIO A. de
• Publication date: 2023/05/15
• Languages : English
• Keywords : Residential building, CO2 emission, Domestic water, Air-water, Case study, Climate, Calculation, Italy, Heating, Urban environment, Air quality, Primary energy, Heat pump
• Source: 14^th IEA Heat Pump Conference 2023, Chicago, Illinois.
• Formats : PDF

IIR document

Performance analysis of a solar cooling plant based on a liquid desiccant evaporative cooler.

• Author(s) : ARMANASCO F., COLOMBO L. P. M., LUCCHINI A., et al.
• Publication date: 2015/05
• Languages : English
• Keywords : Liquid, Performance, Evaporative system, Solar energy, Primary energy, Energy saving, Desiccant
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 53
• Formats : PDF

IIR document

Primary energy efficiency analysis of different separate sensible and latent cooling techniques.

• Author(s) : ABDELAZIZ O.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Thermodynamics, Technology, Desiccant system, Energy efficiency, COP, Air conditioning, Sensible heat, Latent heat
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

Energy conservation transformation of primary return of all-air air-conditioning system.

[In Chinese. / En chinois.]

• Author(s) : HAN J., WANG J.
• Publication date: 2014/01
• Languages : Chinese
• Keywords : Reheating, Air treatment, Air, Dewpoint, Energy efficiency, Air conditioning
• Source: HV & AC - vol. 44 - n. 286
• Formats : PDF

Uticaj koeficijenta transformacije primarne energije na niskotemperaturne panelne sisteme grejanja.

The impact of primary energy coefficient on low temperature panel heating systems.

• Author(s) : CVETKOVIC D., NEŠOVIC A.
• Publication date: 2016/12
• Languages : Serbian
• Keywords : Solar collector, Energy consumption, Building, Republic of Serbia, Simulation, Photovoltaic panel, Heating
• Source: 47^th International HVAC&R Congress and Exhibition.
• Formats : PDF

Analysis of the impact of different HVAC configurations and control strategies on primary energy and cost savings for an office building.

• Author(s) : MAGNI M., OCHS F.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Cost, Office, Building, Energy saving, Calculation, Retrofitting, Renewable energy, Simulation, Case study, Modelling
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

IIR document

Energy saving analysis of the central air-conditioning chiller system for a shopping center.

• Author(s) : KUAN Y. D., LIN H. C., CHANG J. Y., et al.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Taiwan, Shopping centre, Chiller, Simulation, Case study, Energy saving, Control (generic), Air conditioning
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

Environmental factors from a cooling perspective PEF, RES AND CO2.

• Author(s) : Capital Cooling Energy Service AB
• Publication date: 2014
• Languages : English
• Keywords : Renewable energy, District cooling, Heat pump, Europe, Labelling, Environment

IIR document

Energy-saving performance and economics of CO2 and NH3 heat pumps with simultaneous cooling and heating applications in food processing: case studies.

• Author(s) : LIU Y., GROLL E. A., YAZAWA K., et al.
• Publication date: 2017/01
• Languages : English
• Keywords : Food industry, Economy, R744, Pressurization, Heat pump, Case study, USA, Energy saving
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 73
• Formats : PDF

Study on energy-saving performance of a novel CO2 heat pump with applications in dairy processes.

• Author(s) : LIU Y., GROLL E. A., KURTULUS O., et al.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Cooling, R744, Energy storage, Simulation, Heat pump, Performance, Dairy, Heating, CO2
• Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Sensible and latent heat recovery system for drying process using heat-pump and desiccant.

• Author(s) : HIGASHI T., KAIDA T., ZHANG L.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Energy consumption, COP, Heat pump, Heat recovery, Industrial application, Latent heat, Heat exchanger, Dryer, Sensible heat
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

The role of heat pumps in the smart energy systems.

• Author(s) : LUNDQVIST P.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Generality, Research, Heat pump, Performance, Energy saving
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

Modeling and energy performance evaluation of a double effect gas driven air conditioning system using ammonia/water absorption and desiccant evaporative cooling.

• Author(s) : SCOCCIA R., MOTTA M.
• Publication date: 2014/03/02
• Languages : English
• Keywords : Double effect heat pump, Desiccant wheel, Ammonia-water, Absorption, Modelling, Energy efficiency, Air conditioning
• Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
• Formats : PDF

Recommended by the IIR

Energy Saving Potential of an Air Source Heat Pump Heating System Compared with a Radiant Floor Heating System with Ventilation in an Apartment Building.

• Author(s) : HWANG Y. J., KANG Y. K., KIM B. J., JEONG J. W.
• Publication date: 2021/08/31
• Languages : English
• Keywords : Air-source system, Energy consumption, Simulation, Radiation, Floor, Heating, Recovery, Fan, Residential building, Energy saving
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

The untapped potential of district energy systems

A transition to modern district energy systems could contribute to 60% of required energy sector emissions reduction by 2050, and reduce primary energy consumption by up to 50%, according to a new report.

• Publication date : 2015/09/08

Estimate of energy saved by heat pumps

All heat pumps installed in Europe in 2014 have saved 10.42 TWh of final and 4.7 TWh of primary energy.

• Publication date : 2016/02/05
• Subjects: Figures, economy

Briefs: Optimized freight hub

A new temperature-controlled freight hub in Christchurch International Airport, New Zealand, was opened by Hellmann Worldwide Logistics on March 12, 2009. "The facility has been predicated on environmental, efficiency and energy-conscious criteria...

• Publication date : 2009/05/18

New solar-cooling technology for cooling-freezing

Refrigeration is often based on compressor technology which consumes electricity. A recently developed system making it possible to achieve relatively low temperatures solely using solar energy has been designed by PROMES, a laboratory working...

• Publication date : 2007/05/04

US

The US food industry's preparation to R-22 phase-out was one of the issues addressed at the 27th annual Food Marketing Institute Energy Conference in Phoenix, US, in September 2006. At least 70% of US commercial refrigerating systems still use...

• Publication date : 2007/02/12

Refrigerating food uses the most energy

According to surveys conducted in Germany in 1999, by the Hanover-based FKW and the Dresden-based ILK, production, transport storage and distribution of food products required approximately 155 000 GWh annually in Germany. Refrigeration accounts...

• Publication date : 2007/12/03

Natural refrigerants in emerging countries: South Africa

South Africa is facing an energy shortage and a rise in electricity prices. Natural refrigerants, which have important energy saving potential, are now being introduced, especially in supermarkets. Here are 2 examples: . GTZ has offered technical...

• Publication date : 2010/03/07

Sorption chillers

Sorption chiller technology is rapidly developing, especially that using solar energy. - As highlighted by Jacob and Kohlenbach* during the latest IIR Gustav Lorentzen Conference on Natural Working Fluids in Sydney, in Europe, numerous new...

• Publication date : 2011/02/07

Overview of data center cooling technologies

The very huge growth in Internet traffic requires the continued development of new energy-efficient data center cooling technologies, based primarily on liquid...

• Publication date : 2022/12/15
• Subjects: Technology

Netherlands: refrigeration accounts for 18% of total electricity consumption in the industrial sector

A study (1) by KWA Business Consultants on the annual energy consumption of refrigeration plants in various industrial and non-industrial sectors in The Netherlands was presented during ICR2011.

• Publication date : 2011/12/21

Heat pump benefits

Energy saved and CO2 emissions avoided in 2015 by using heat pumps (EHPA European heat pump market and statistics report 2016)

• Publication date : 2016/12/07
• Subjects: Figures, economy

European heat pump market

The number of heat pump units sold in the European heat pump market increased by 3% in 2013. A total of 769 879 units were sold in the 21 European countries covered by this year’s EHPA report.

• Publication date : 2014/10/23
• Subjects: Figures, economy

Chilled beam for health care rooms

The benefits of implementing active chilled beams include downsized ductwork/equipment, energy reductions of up to 50% in some cases, decreased maintenance, optimal comfort and indoor air quality (IAQ)

• Publication date : 2014/03/26

Space cooling at the heart of energy efficiency policies

The latest “IEA Energy Efficiency 2018” report stresses that cooling is the fastest growing energy end-use in buildings and calls for further improvements in efficiency gains, especially through raising of minimum energy performance standards.

• Publication date : 2018/11/22
• Subjects: General information, Figures, economy

European heat pump market and statistics report 2016

Heat pump sales in Europe have reached in 2015 the highest number ever recorded: 890 302 units.Year-over-year 12% more heat pumps were sold in the 21 European countries covered by this year’s EHPA (European Heat Pump Association) report.

• Publication date : 2016/11/26
• Subjects: Figures, economy

Conference update: Sydney

The 9th IIR Gustav Lorentzen Conference Natural Working Fluids will be held in Sydney, Australia, on April 12-14, 2010. The call for papers and first announcement are now available:

• Publication date : 2009/05/18

1st IIR International Cold and Sustainability Conference

The 1st IIR Conference on Sustainability and the Cold Chain held in Cambridge, UK, on March 29-31, 2010 attracted over 150 participants from 22 countries. Academia, public and corporate research centres, public agencies and administrations, and...

• Publication date : 2010/05/27

New IIR Informatory Note on Liquefied Natural Gas

The latest IIR Informatory Note stresses that LNG is expected to play a major role in global energy strategies as it has many advantages and helps mitigate global warming when used instead of coal and...

• Publication date : 2023/06/28

Editorial by Didier Coulomb

Energy is one of the main strategic challenges of this century, both in terms of the impact of energy consumption on the environment (greenhouse effect) and above all in terms of the risk of shortages with respect to our society's needs (limited...

• Publication date : 2006/11/14

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

Commission E2: at the forefront of heat pumps and energy recovery

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

• Publication date : 2015/07/01

Hot off the press: Handbook on Indirect Refrigeration and Heat Pump Systems

Be the first to read the newly published IIR Handbook on Indirect Refrigeration and Heat Pump Systems.

• Publication date : 2015/08/05

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

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.

• Last update : 2022/11/17
• Langues : French, English
• Themes : General information on environment (climate change, ozone depletion…)

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

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

Thermophysical properties of HFC refrigerants

Thermophysical properties of over 100 HFC refrigerants, including single-component and blends.

• Last update : 2022/06/17
• Langues : English
• Themes : HFCs, Blends, HFO et HCFO

Thermophysical properties of HFO refrigerants

Thermophysical properties of over 50 HFO refrigerants, including single-component and blends.

• Last update : 2022/06/17
• Langues : English
• Themes : Blends, HFO et HCFO

Thermophysical properties of hydrocarbon refrigerants

Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and blends.

• Last update : 2022/06/17
• Langues : English
• Themes : Hydrocarbons, Blends