Search results

Thermodynamic analysis of ammonia-water power/chilling cogeneration cycle with low-grade waste heat.

• Author(s) : HUA J., CHEN Y., WANG Y. D., et al.
• Publication date: 2014/03
• Languages : English
• Keywords : Chilling, Ammonia-water, Absorption, Performance, Optimization, Waste heat, Cogeneration
• Source: Applied Thermal Engineering - vol. 64 - n. 1-2

IIR document

Improvement of Brayton refrigeration air cycle for electroplating wastewater treatment.

• Author(s) : LU J., XIA Y., CHENG Q.
• Publication date: 2023/11
• Languages : English
• Keywords : Brayton, Thermodynamic cycle, Air cycle, Modelling, Simulation, Waste water, Solar collector
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 155
• Formats : PDF

Ventilation and deodorization system optimization of a wastewater treatment plant.

• Author(s) : CASACA C., HENRIQUES N., NUNES E. A. V., SIMOES T. A.
• Publication date: 2022/04
• Languages : Afrikaans
• Keywords : Air quality, Indoor environment, Ventilation, Odour, Air conditioning, Waste water, Optimization
• Source: XI Congreso Ibérico y IX Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2022.
• Formats : PDF

A packaged waste-heat driven ammonia-water absorption chiller for severe ambient operation.

• Author(s) : PONKALA M. J., GOYAL A., STAEDTER M. A., et al.
• Publication date: 2017/08/07
• Languages : English
• Keywords : Heat transfer, Chiller, Ammonia-water, Absorption, Expérimentation, COP, Ambient condition, Waste heat
• Source: International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.

IIR document

Performance analysis of heat pump water heating system with cascade utilization of waste heat from wastewater.

• Author(s) : HU P., ZHU W., CHEN Z.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Hot water, Heat recovery, Heat pump, Performance, Model, Waste heat
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

IIR document

Experimental evaluation of a small-capacity, waste-heat driven ammonia-water absorption chiller.

• Author(s) : GOYAL A., STAEDTER M. A., HOYSALL D. C., et al.
• Publication date: 2017/07
• Languages : English
• Keywords : Small scale, Chiller, Ammonia-water, Absorption, Cooling capacity, Heat pump, Expérimentation, Waste heat
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 79
• Formats : PDF

IIR document

Using waste energy of double-effect refrigeration cycle to produce potable water: Energy and economic analysis.

• Author(s) : MOKHTARI M., KESHTKAR M. M.
• Publication date: 2023/06
• Languages : English
• Keywords : Desalination, Waste heat, Drinkable water, Modelling, Thermodynamic cycle, Heat recovery
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 150
• Formats : PDF

Comprehensive analysis of the state of technology in the field of waste heat recovery from grey water.

• Author(s) : PIOTROWSKA B., SŁYŚ D.
• Publication date: 2023/01
• Languages : English
• Keywords : Household application, Domestic water, Heat recovery, Waste water, Review, Residential building, Energy efficiency
• Source: Energies - vol. 16 - 1
• Formats : PDF

IIR document

Waste heat driven ammonia-water absorption chiller for high temperature residential-scale applications.

• Author(s) : KINI G., TAMBASCO M., CHANDRASEKARAN S., et al.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Microchannel, Chiller, Ammonia-water, Absorption system, Prototype, Modelling, High temperature, COP, Waste heat, Heat exchanger
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Modeling and analysis of an ammonia–water absorption refrigeration system utilizing waste heat with large temperature span.

• Author(s) : LU D., XU Q., CHEN G.
• Publication date: 2019/07
• Languages : English
• Keywords : Exergy, Heat recovery, Ammonia-water, Absorption system, Modelling, Temperature scale, Waste heat
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 103
• Formats : PDF

An experimental and numerical study of a de-fouling evaporator used in a wastewater source heat pump.

• Author(s) : SHEN C., YANG L., WANG X., et al.
• Publication date: 2014/09
• Languages : English
• Keywords : Heat transfer, Heat pump, Performance, Model, Expérimentation, Evaporator, Fouling, Waste water
• Source: Applied Thermal Engineering - vol. 70 - n. 1

IIR document

CFD research of the counter-flow spray concentration process in solar energy - air evaporating separation saline wastewater treatment system.

• Author(s) : YU J., JIN S.
• Publication date: 2019/08/24
• Languages : English
• Keywords : Spray, CFD, Air, Separation, Evaporation, Solar energy, Concentration, Waste water
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

IIR document

Experimental evaluation of heat transfer performance of falling film evaporator for wastewater source heat pump with backwash system.

• Author(s) : ZHANG Q., ZHANG X., YIN C., LIU F., WANG G.
• Publication date: 2020/05
• Languages : English
• Keywords : Heat pump, Heat transfer, Performance, Evaporator, Falling film, Waste water, Expérimentation
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 113
• Formats : PDF

IIR document

Investigation of a mixed effect absorption chiller powered by jacket water and exhaust gas waste heat of internal combustion engine.

• Author(s) : WANG J., WU J.
• Publication date: 2015/02
• Languages : English
• Keywords : Jacket, Generator, Chiller, Heat recovery, Absorption system, Simulation, Thermal engine, Waste heat, Water
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 50
• Formats : PDF

In-situ analysis of a centralized wastewater heat pump for a complex of high energy standard buildings.

• Author(s) : CALLEGARI S., OLIVEIRA F. de, HOLLMULLER P., FRAGA C.
• Publication date: 2021/08/31
• Languages : English
• Keywords : District heating, Residential building, Waste water, Heat recovery, Heat pump, Domestic water, Case study, Seasonal performance, Switzerland
• Source: 13^th IEA Heat Pump Conference 2021: Heat Pumps – Mission for the Green World. Conference proceedings [full papers]
• Formats : PDF

Air conditioner wastewater purified for human consumption

In Ecuador, Panasonic developed ACH20, a filtering system that purifies air conditioner wastewater and makes it fit for human consumption.

• Publication date : 2015/09/03

Norwegian lobster farm uses waste heat from datacentre

An innovative lobster farm will use waste heat from a Norwegian datacentre for water temperature regulation.

• Publication date : 2021/08/30
• Subjects: Technology

US increasing food waste

Food waste contributes to excess consumption of freshwater and fossil fuels which, along with methane and CO2 emissions from decomposing food, thus impact global climate change. In a recent paper published in the Public Library of Science ONE,...

• Publication date : 2010/03/07

Market: Japanese heat pump market

A Japanese market research company has analysed the Japanese heat pump market for applications in Eco-Cute water heaters and air-conditioners and published a forecast for market development over the next 10 years. Growth expectations for the...

• Publication date : 2011/02/07

Green buildings

Moscow City Tower is to be Europe's tallest and the world's second tallest building. The 600-m naturally ventilated tower designed by Norman Foster will accommodate 25 000 people - a city unto itself - and the designer is aiming for LEED gold...

• Publication date : 2008/08/12

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

Solar Air conditioning

With high summer temperatures, air-conditioning and thermal comfort are increasingly important issues, but raise the challenges of high energy consumption and of environmental consequences. Three recent projects use solar energy to operate...

• Publication date : 2007/08/05

Briefs: Giant chiller

A 5-MW 2-stage water-lithium bromide absorption chiller was recently inaugurated at Ulm Technical University in Germany. The Chinese-manufactured chiller is driven by hot wastewater (180°C) from a bio-energy-fired cogeneration plant. This...

• Publication date : 2004/04/28

Green Buildings: King Abdullah University

King Abdullah University of Science and Technology (KAUST) in Thuwal, Saudi Arabia, has been selected as one of the 2010 "Top Ten Green Projects" by the American Institute of Architects (AIA) Committee on the Environment (COTE). The annual...

• Publication date : 2011/02/04

Briefs: Dehumidification and cooling system cuts energy consumption by 43% in meat processing plant

Cooling and dehumidification costs in a meat plant in Germany have been reduced by a system using hot and cold water from other processes. According to DuCool, TönniesFleisch plant in Rheda-Wiedenbrück is saving annually 165 000 € in electricity...

• Publication date : 2009/08/13

Energy savings: Case study on a cool way to cut energy consumption in the UK food industry

A collaborative research and development project led by a mechanical engineering team from Brunel University, UK, found that supermarkets and food processing plants could cut their energy costs by over 30% and reduce greenhouse gas emissions by...

• Publication date : 2005/07/19

Green cooling solutions for the Olympics

VANOC, the Vancouver Organizing Committee (www.Vancouver2010.com), claims that these Olympics are the greenest ever and there are whole lists of environmentally friendlier features in the venues. And...

• Publication date : 2010/02/19

Market: European heat pump market

- The European Heat Pump Association (EHPA) has published an updated version of its outlook for the European heat pump market. The report shows that after 2 years of very difficult economic times, the market decline has stopped and heat pump...

• Publication date : 2011/02/07

World AC and compressor trends

In its recent report, JARN estimates that the HVAC&R market in 2006 was about 66 billion USD and about half of sales were air conditioners and related products. - Regarding the AC market, China, the US, Japan and major European countries make...

• Publication date : 2007/05/04

Food waste top agenda at FAO Near East Conference

FAO recently announced measures to improve regional food security by cutting food losses and waste during its Regional Conference for the Near East. Some 15% of vegetables and legumes and more than 30% of perishable foods are wasted annually in ....

• Publication date : 2012/10/12

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

News from IIR members: Nestlé

Nestlé's confectionery production facility in Halifax, UK, has implemented an award-winning innovative ammonia heat pump plant to power its operations, cutting costs at the site by over 240 000 € per year. The system, formed by a collaborative...

• Publication date : 2011/02/07

IIR member news: Excess heat is the largest untapped energy source

In a whitepaper, IIR Benefactor member Danfoss highlights the vast untapped potential of excess heat as a source of energy.

• Publication date : 2023/03/27

Supercooling and superchilling: A solution to increased shelf life and reduced food waste?

If these technologies were combined with perfusion chilling for meat and fish, then additional benefits such as rapid cooling, low weight loss and novel products could result.

• Publication date : 2015/10/27

The IIR with the World Bank in West Bengal

The IIR is a key partner in the World Bank’s project on the Inland Waterways Transport (IWT) integration into the cold chain in West Bengal 

• Publication date : 2021/09/07

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

Member news: Efficient Energy has been rewarded for its remarkable growth over the last 4 years

Energy Efficient, an IIR corporate member, ranked third in the latest Deloitte Technology Fast 50 in Germany. This ranking rewards companies based on the percentage increase in their revenue over the last four...

• Publication date : 2021/12/15
• Subjects: HFCs alternatives

A new book on natural refrigerants

The English version of a book by three German authors on the applications and practical recommendations of natural refrigerants has just been published by the IIR on its website. 

• Publication date : 2023/09/22
• Subjects: HFCs alternatives

15th IIR-Gustav Lorentzen Conference, June 13-15, 2022: the detailed programme is now available!

The detailed program of the 15th IIR Gustav Lorentzen Conference on Natural Refrigerants is now available online.

• Publication date : 2022/05/16
• Subjects: HFCs alternatives

New EU funded project began on October 1st, 2021: “SophiA - Sustainable off-grid solutions for pharmacies and hospitals in Africa”

With a budget of 8 million euros over four years, SophiA will develop containerized solutions for hospitals using natural refrigerants, solar thermal and photovoltaics to enable more and more African people to...

• Publication date : 2021/10/21
• Subjects: Technology, Developing country, Environment, HFCs alternatives

Additive manufacturing of heat exchangers

In the refrigeration industry, additive manufacturing (colloquially referred to as “3D printing”) makes it possible to fabricate novel, complex and potentially more energy efficient...

• Last update : 2022/09/07
• Langues : French, English
• Themes : Evaporators, condensers and other heat exchangers

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)

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

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