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Experiencias con sensores de temperatura digitales para evaluar bombas de calor.

Experiments with digital temperature sensors to evaluate heat pumps.

• Author(s) : ORTEGA I., SIERES J., CERDEIRA F., SANTOS J. M., ALVAREZ E.
• Publication date: 2022/04
• Languages : English
• Keywords : Heat pump, Air conditioning, Expérimentation, Sensor, Temperature
• Source: XI Congreso Ibérico y IX Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2022.
• Formats : PDF

Dynamic frost growth detection using capacitive sensor.

• Author(s) : SHEN Y., WANG X.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Frost, Sensor, Temperature, Surface, Expérimentation, Thickness
• Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

Mounting of sensors on surfaces in historic buildings.

• Author(s) : RAFFLER S., BICHLMAIR S., KILLIAN R.
• Publication date: 2014/02
• Languages : English
• Keywords : Sensor, Energy, Building, Measurement, Surface, Museum
• Source: 49^th AiCARR International Conference. Historical and existing buildings: designing the retrofit. An overview from energy performances to indoor air quality.
• Formats : PDF

Low velocity isothermal, air flow thermistor sensor.

• Author(s) : CABRITA A. A. C. M., MENDES R., QUINTELA D. A.
• Publication date: 2016/05/03
• Languages : English
• Keywords : Velocity (fluids, gases), Sensor, Measurement, Thermistor, Air, Flow
• Source: CYTEF 2016. VIII Congreso Ibérico y VI Congreso Iberoamericano de las Ciencias y Técnicas del Frío, Coimbra-Portugal, 3-6 mayo, 2016.
• Formats : PDF

IIR document

Sensitivity analysis for PCA-based chiller sensor fault detection.

• Author(s) : HU Y., LI G., CHEN H., et al.
• Publication date: 2016/03
• Languages : English
• Keywords : Sensor, Chiller, Failure, Detection, Air conditioning
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 63
• Formats : PDF

IIR document

Vortex flow sensor in CO2 refrigeration system.

• Author(s) : HEERUP C., FREDERIKSEN K.
• Publication date: 2014/08/02
• Languages : English
• Keywords : Refrigerating system, Sensor, Measurement, Vortex, Efficiency, R744, Supermarket, CO2
• Source: 11^th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2014). Proceedings. Hangzhou, China, August 31-September 2, 2014.
• Formats : PDF

Development and evaluation of an automated virtual refrigerant charge sensor training kit.

• Author(s) : PATIL A, HJORTLAND A., BRAUN J. E., et al.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Psychrometry, Sensor, Accuracy, Modelling, Refrigerant charge
• Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

IIR document

Study on the support vector data description (SVDD)-based chiller sensor fault detection efficiencies.

• Author(s) : LI G., HU Y., CHEN H., et al.
• Publication date: 2015/08/16
• Languages : English
• Keywords : Sensor, Efficiency, Chiller, Failure, Detection
• Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
• Formats : PDF

Localized indoor temperature estimation using smartphone and laptop internal sensors.

• Author(s) : RAFAIE M., TESFAY M., ALSALEEM F.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Indoor environment, Sensor, Temperature, Control (automatic), Prediction, Model
• Source: 2018 Purdue Conferences. 5^th International High Performance Buildings Conference at Purdue.
• Formats : PDF

Time-temperature integrators as predictive temperature sensors.

• Author(s) : ARIAS-MENDEZ A., VILAS C., ALONSO A. A., et al.
• Publication date: 2014/10
• Languages : English
• Keywords : Thermal property, Sensor, Temperature, Time-temperature tolerance, Prediction, Optimization, Temperature integrator, Expérimentation
• Source: Food Control The International Journal of HACCP and Food Safety - vol. 44

IIR document

Extension of a virtual refrigerant charge sensor.

• Author(s) : KIM W., BRAUN J. E.
• Publication date: 2015/07
• Languages : English
• Keywords : Refrigerating system, Sensor, Variable speed, Heat pump, Performance, Testing, Refrigerant charge, Compressor
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 55
• Formats : PDF

Real-time frost porosity (density) measurement using capacitive sensor.

• Author(s) : SHEN Y., ZHANG Y., WANG X.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Velocity (fluids, gases), Porosity, Frost, Sensor, Measurement, Density, Air
• Source: 2018 Purdue Conferences. 17^th International Refrigeration and Air-Conditioning Conference at Purdue.
• Formats : PDF

A novel colorimetric sensor array for monitoring fresh pork sausages spoilage.

• Author(s) : SALINAS Y., ROS-LIS J. V., VIVANCOS J. L., et al.
• Publication date: 2014/01
• Languages : English
• Keywords : Sensor, Measurement, Deterioration, Monitoring, Fresh produce, Pork product
• Source: Food Control The International Journal of HACCP and Food Safety - vol. 35 - n. 1

IIR document

Virtual refrigerant charge sensor for booster refrigeration systems.

• Author(s) : ANDREASEN G., IZADI-ZAMANABADI R., STOUSTRUP J.
• Publication date: 2021/02
• Languages : English
• Keywords : Refrigerant charge, Sensor, Supermarket, Leakage, Expérimentation, Equation of state, Modelling, CO2, R744
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 122
• Formats : PDF

IIR document

The impact of improved PCA method based on anomaly detection on chiller sensor fault detection.

• Author(s) : LIANG A., HU Y., LI G.
• Publication date: 2023/11
• Languages : English
• Keywords : Detection, Anomaly, Chiller, Sensor, Simulation, Modelling
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 155
• Formats : PDF

A Listeria monocytogenes biosensor based on gold nanoparticles

The innovation is an inexpensive, portable, disposable enzyme-linked immunoabsorbent assay-based biosensing strip that detects L. monocytogenes theough gold particle-modified screen-printed carbon electrodes.

• Publication date : 2013/05/16

Personalized environment thanks to IoT sensors.

The building management system (BMS) adjusts lighting, heating, and air-conditioning in real-time, thanks to IoT sensors.

• Publication date : 2017/02/22

Virtual sensor for variable refrigerant flow AC system.

A summary referring to an article recently published in the International Journal of Refrigeration (IJR).

• Publication date : 2017/03/20

Reducing food waste: can we keep open canned sardines in the refrigerator?

Researchers from the University of Porto studied the shelf life at 4°C of open canned sardines, depending on the type of seasoning (sardines in brine, vegetable oil, tomato...

• Publication date : 2022/08/16
• Subjects: General information

Briefs: Fridges used as monitoring tools

Sensor-equipped domestic refrigerators are found to be a useful means of improving and protecting the well-being of senior citizens living on their own. Thanks to Carlston University's TAFETA Smart Systems for Health, residents in Ottawa Community...

• Publication date : 2010/05/27

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

Cryogenics: A new cryocooler

A new cryocooler has been demonstrated at the National Institute of Standards and Technology (NIST) that combines small-size, rapid cooling, low temperatures and high efficiency. It is a "pulse tube" design that uses oscillating helium gas to...

• Publication date : 2007/05/04

New cryogenic refrigerator to deep-freeze chips

Researchers at the National Institute of Standards and Technology (NIST) have developed a compact, solid-state refrigerator capable of reaching very low temperatures (as low as 100 milliKelvin). The refrigerator works using a "sandwich" of normal-...

• Publication date : 2004/05/25

Chilled water cooling pads to reduce heat stress in pigs

A team of scientists at Purdue university in the USA has developed cooling pads to keep pigs cool and reduce the impact of heat stress on milk output and piglet...

• Publication date : 2023/11/28
• Subjects: Technology

Optical refrigeration

A team in New Mexico University has created the first-ever optical cryocooler that could be applied to airborne and spaceborne sensors. It uses optical refrigeration which could enable miniaturization, an alternative to bulky mechanical...

• Publication date : 2010/05/27

TTI: new developments

Time-Temperature Integrators (TTIs) are "intelligent labels" that simulate bacterial development, as a function of time-and-temperature parameters. As soon as a critical threshold is crossed, a change in colour alerts the consumer that the...

• Publication date : 2006/11/15

Energy savings in display cabinets

Several new developments make it possible to save energy in display cabinets. - Optimizing air curtain velocity A team at the Air Curtain Research Laboratory at Kettering University in Michigan, US, has modellized the air flow in air curtains and...

• Publication date : 2009/12/09

Briefs: Edible optics to prevent food poisoning

Edible nanosensors made from silk could alert consumers regarding potential contamination of food thanks to a hologram-type indicator embedded in the pack. Researchers at Tufts University in the US are working on the development of bioactive silk...

• Publication date : 2008/10/25

Food cold chain: improving temperature control to reduce loss

Recent review articles provide an update on technologies to monitor temperature in the food cold chain, in order to avoid food loss during transport and...

• Publication date : 2022/04/29
• Subjects: Figures, economy, Technology

Brief: Green towers: big can be green

The Bank of America's new 1 billion USD national headquarters in New York will be the first skyscraper to apply for a LEED (Leadership in Energy and Environmental Design) platinum rating. It will feature underfloor displacement air ventilation...

• Publication date : 2005/06/14

IIR Research Priorities

The IIR decided, within the framework of its Strategic Plan, to draw up a list of research priorities for the future. It hopes that these priorities will be a valuable guiding force for decision-makers in the public and private research sectors,...

• Publication date : 2005/07/19

The Norwegian Royal Ambassy visit to INDEE+ educational unit in IIT Madras

To acknowledge the efforts of INDEE+, the Norwegian Ambassador Hans Jacob Frydenlund, Arvind Gopinath (Honorary Consul), Ms. Marit Marie Strand (Advisor), Mr. Vivek (Senior Advisor) and other team members...

• Publication date : 2022/09/28

Briefs: Obituary

Dr P. Ole Fanger, Senior Professor at the International Centre for Indoor Environment and Energy at the Technical University of Denmark, died on September 18, 2006, at the age of 72. He was considered as the world's leading expert on the effect of...

• Publication date : 2006/11/15

New in our Encyclopedia: cryogenics in the pharmaceutical industry

This summary document presents the potential applications of liquid cryogens in the pharmaceutical sector. 

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

HKA/OST Summer School: Looking for sponsors

Two partners of the SophiA project wil be organising an International Summer School on Sustainability at OST in Switzerland.

• Publication date : 2022/05/27

International activities: IKK 2005

IKK 2005, the 26th IKK-International Trade Fair Refrigeration, Air Conditioning and Ventilation, took place in Hanover on November 2-4, 2005. It attracted 13 670 visitors and 610 exhibitors from 41 countries. For the third year running the IIR was...

• Publication date : 2006/01/28

New in our Encyclopedia. Cryogenic nitrogen in the food and beverage industry 

This summary document presents the applications of cryogenic nitrogen in the food and beverage industry .

• Publication date : 2023/06/27
• Subjects: Technology

Conference update: Sydney

The 9th IIR Gustav Lorentzen Conference on Natural Working Fluids will be held in Sydney, Australia on, April 12-14, 2010. The conference will place a heavy emphasis on natural refrigerant CO2 as a real alternative solution....

• Publication date : 2009/12/09

Editorial by Didier Coulomb

Renewal of generations has to take place in all societies and the ability to attract young people to certain professions must be a major concern in companies and public organizations. This is particularly true in the refrigeration sector, and of...

• Publication date : 2005/06/14

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

ICCC 2020: The most important international cold chain event of the year!

Register today to the IIR Cold Chain Conference 2020. A biennial event of the IIR, the ICCC conference series is recognised worldwide as a cutting-edge event on the cold chain.

• Publication date : 2019/12/30

ICR2015: A stimulating environment for dynamic exchanges

With a focus on improving standards and the quality of life of many worldwide, as well as emphasising the importance of preserving the earth through the advancement of refrigeration applications and technology, ICR2015 is expected to attract a...

• Publication date : 2015/04/08

Experience the unforgettable in Japan at ICR2015: It’s not just about refrigeration, it’s also about fun!

ICR2015: Discover the plenary speakers, technical tours, and popular tours and activities

• Publication date : 2015/05/06

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

Cryogenics in the pharmaceutical industry: drug design and bioavailability improvement

Research activities in the pharmaceutical sector focus primarily on developing novel drug formulations which can elicit the desired response upon being administered to the patient...

• Last update : 2023/03/10
• Langues : French, English
• Themes : Freeze-drying in biology and medicine, Cryobiology, cryomedicine: general information

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