Search results

Research on low frequency vibration of rotary compressor.

• Author(s) : WEN Z., ZHANG R., ZHANG Y., et al.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Noise, Low frequency, Vibration, Expérimentation, Rotary compressor
• Source: 2016 Purdue Conferences. 23^rd International Compressor Engineering Conference at Purdue.
• Formats : PDF

Research on low frequency vibration of rotary compressor.

• Author(s) : WEN Z., ZHANG Y., ZHANG R., et al.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Noise, Low frequency, Vibration, Resonance, Testing, Air conditioning, Rotary compressor
• Source: 2018 Purdue Conferences. 24^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

Optimization of low frequency noise of compressor based on modal sensitivity analysis.

• Author(s) : XIE L., WANG Y., TIAN L., et al.
• Publication date: 2017/07/20
• Languages : English
• Keywords : Noise, Low frequency, Simulation, Optimization, Air conditioning, Rotary compressor
• Source: 8th international conference on compressors and refrigeration, 2017.
• Formats : PDF

Numerical and experimental research of noise reduction due to low frequency pressure fluctuation of rotary compressor.

• Author(s) : ZHANG C., DENG Z., SHEN H., et al.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Velocity (fluids, gases), Pulsation, Noise, Low frequency, Rotation, Testing, Flow, Refrigerant, Rotary compressor
• Source: 2018 Purdue Conferences. 24^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

The mechanism discuss of periodic sound in rolling piston compressor under low operating frequency in air-conditioner system.

• Author(s) : GU H., ZHANG R., HU Y.
• Publication date: 2014/07/14
• Languages : English
• Keywords : Resonator, Noise, Low frequency, Sound, Expérimentation, Air conditioning, Rolling piston compressor, Compressor
• Source: 2014 Purdue Conferences. 22nd International Compressor Engineering Conference at Purdue.
• Formats : PDF

Analysis of vibration isolators for hermetic compressors.

• Author(s) : VENDRAMI C. E., PELLEGRINI C.
• Publication date: 2016/07/11
• Languages : English
• Keywords : Low frequency, Vibration, Household refrigerator, Modelling, Soundproofing, Hermetic compressor
• Source: 2016 Purdue Conferences. 23^rd International Compressor Engineering Conference at Purdue.
• Formats : PDF

Research on low frequency noise caused by beat vibration of rotary compressor.

• Author(s) : SHEN H., HUANG X., DENG Z., et al.
• Publication date: 2018/07/09
• Languages : English
• Keywords : Pulsation, Noise, Calculation, Vibration, Simulation, Pressure, Frequency, Rotary compressor
• Source: 2018 Purdue Conferences. 24^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

IIR document

Experimental study of a pulse tube cold head driven by a low frequency thermal compressor.

• Author(s) : ZHAO Y., DAI W., VANAPALLI S., et al.
• Publication date: 2016/06/22
• Languages : English
• Source: 1^st IIR International Conference of Cryogenics and Refrigeration Technology (ICCRT 2016). Proceedings: Bucharest, Romania, June 22-25, 2016.
• Formats : PDF

IIR document

High frequency and high-power density magnetocaloric cooling.

• Author(s) : TOMC U., KLINAR K., PETELIN N., VOZEL K., NOSAN S., PERNE J., KITANOVSKI A.
• Publication date: 2023/08/21
• Languages : English
• Keywords : Magnetic field, Magnetocaloric cooling, Recovery, Energy efficiency, Expérimentation, Frequency
• Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
• Formats : PDF

IIR document

Analysis on potential to enhance the energy efficiency of inverter air conditioners.

• Author(s) : CUI M., WANG B., DING L., et al.
• Publication date: 2019/08/24
• Languages : English
• Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
• Formats : PDF

A low power cryocooled autonomous ultra-stable oscillator.

• Author(s) : FLUHR C., DUBOIS B., GROP S., et al.
• Publication date: 2016/10
• Languages : English
• Source: Cryogenics - vol. 80

IIR document

Experimental investigation on two-phase flow noise characteristics of R410A through electronic expansion valve of multi-split air conditioner.

• Author(s) : ZHOU S., ZHANG F., DING G.
• Publication date: 2023/02
• Languages : English
• Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 146
• Formats : PDF

IIR document

Experimental study on single-refrigerant cascade refrigeration system.

• Author(s) : KONG S., YANG Y.
• Publication date: 2018/04/06
• Languages : English
• Source: 5^th IIR International Conference on Sustainability and the Cold Chain. Proceedings: Beijing, Chine, 6-8 avril 2018
• Formats : PDF

Research on noise reduction of variable speed rotary compressor with large capacity.

• Author(s) : WANG H., XIE Z., LU Y., CHU W., LI Z.
• Publication date: 2021/05
• Languages : English
• Keywords : Variable speed, Rotary compressor, High capacity, Noise, Reduction, Air conditioning, Simulation, Expérimentation, Optimization, Frequency
• Source: 2021 Purdue Conferences. 25^th International Compressor Engineering Conference at Purdue.
• Formats : PDF

Numerical simulation and experimental validation of a fan failure caused by vibration.

• Author(s) : ZHOU Q., HANG Y., FENG J., et al.
• Publication date: 2017/07/20
• Languages : English
• Source: 8th international conference on compressors and refrigeration, 2017.
• Formats : PDF

Benefits of closed display cabinets for food preservation

A recent article in the IJR shows that in comparison to an open display cabinet, a closed display cabinet achieves lower product temperature and better temperature homogeneity, even with a high door-opening frequency.

• Publication date : 2019/08/29

Ultracold polar molecules

Scientists at JILA, a joint institute of the National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder (CU-Boulder), have applied their expertise in ultracold atoms and lasers to produce the first high-density...

• Publication date : 2008/10/22

Briefs: Open units or with glass doors?

When glass doors are used in refrigeration units, the energy savings are as a rule indicated as being "up to" 40%. Very often these figures are based on experience in a typical climate (25°C and 60% air humidity) with standard opening frequencies...

• Publication date : 2009/05/18

CO2 applications: First commercial CO2 system in Latin America

Last April Verdemar supermarket chain inaugurated its fifth store in the suburb of Jardim Canada, Nova Lima -Minas Gerais, Brazil. It is the first Latin American supermarket that uses carbon dioxide as a refrigerant. Its Skyrack Breeze, developed...

• Publication date : 2011/02/07

The future: 330 microns square

Radio frequency identification (RFID) is set to play a growing role in refrigerated logistics operations. RFID is advanced technology designed to replace traditional barcode technology and the Metro Germany Group is already Europe's forerunner,...

• Publication date : 2005/07/19

Cool ways to chill for cold storage and maintaining an unbroken cold chain

In an interview for FOOD Magazine, Robbie Davies (Cold Chain Centre) clarifies significant progress relating to the cold chain. Refrigeration technology is an area that has advanced considerably in recent years - particularly in road transport,...

• Publication date : 2005/06/14

Data centre cooling

Data processing environments were estimated in 2006 to consume about 1.5% of the total electricity in the US. Data centre power consumption has roughly doubled in the last 5 years and is expected to double again in the next 5 years to more than...

• Publication date : 2009/02/25

Oil-free chillers

At the beginning of 2005, Climavenata will launch its new range of liquid chillers: the "Turbo Efficiency Climaveneta System" (Tecs), which is an oil-free chiller. The range is fitted with Danfoss-Turbocor R-134a centrifugal compressors :...

• Publication date : 2005/02/10

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

Compressors: Oil-free linear compressor

Linear technology could become the predominant energy-efficient refrigeration compressor design, according to Brazilian manufacturer Embraco which unveiled a domestic compressor offering linear technology with variable capacity, eliminating the...

• Publication date : 2011/02/11

Intelligent fridges

- It is estimated that networked fridges will be widely used by 2015. How do consumers feel about such fridges that monitor product use, create shopping lists and arrange deliveries online? A recent survey involving 4600 shoppers in 8 countries...

• Publication date : 2008/08/12

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

Are hydrocarbons in room air conditioners risky?

A team from GIZ Proklima used quantitative risk assessment tools to estimate the severity and frequency of ignition HC-600a (iso-butane) and HC-290 split air conditioners and domestic refrigerators.

• Publication date : 2015/02/12

Noise reduction strategies for screw compressors

The operating noise of twin-screw compressors is an important issue that may limit their scope of application. Two recent IJR papers suggest several noise reduction methods and analyse their...

• Publication date : 2021/05/31

The benefits of linear compressors

Three articles published recently in the IJR illustrate the strength of R&D work around linear compressors and highlight the benefits of these, especially in commercial and domestic...

• Publication date : 2020/02/27

Conference update: Ohrid

The 3rd IIR event in a series, Ammonia Refrigeration Technology was held on May 7-9, 2009, in Ohrid, Macedonia. With 95 participants from 24 countries and 32 papers presented, the event was very successful. A key focus of this series of...

• Publication date : 2009/05/27

Member news: Mirai Intex releases new high capacity ultra-low temperature refrigeration system

Mirai Intex, corporate member of the IIR, has released a new ultra-low temperature (ULT) system based on air-cycle technology, offering high cooling capacity.

• Publication date : 2021/03/09
• Subjects: Technology, HFCs alternatives

New IIR Informatory Note on Air-source heat pumps for space heating and cooling

The IIR has issued a new Informatory Note on Air source heat pumps for space heating and cooling. A summary for policymakers and a Chinese version of this note have also been published.

• Publication date : 2021/02/23

IIR member news: Cemafroid, IRSTEA and AFCE

A new study on the containment of refrigerants has been launched with the aim of identifying and promoting best practices in this regard.

• Publication date : 2015/10/07