Headline News Volume 526
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eJARN.com Headline News
Date: April 17th, 2020, Volume 526
( http://www.ejarn.com )
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<March Special edition>
1. Technical trends for Scroll Compressor
For more than 35 years since their initial commercialization, scroll compressors have been widely used as the core part of air conditioning and refrigeration (AC&R) products such as residential and commercial air conditioners, automobile air conditioners, chillers, and refrigeration systems. Currently, scroll compressor is widely used around the world, with capacities ranging from 0.75 to 45 kW depending on the application, and is being produced on a scale of more than 14 million units per year.
March Special page 47
https://www.ejarn.com/detail.php?id=61888&l_id=
2. Technical trends for Centrifugal & Screw Compressors
The centrifugal compressor has a history of nearly 100 years since it was developed in 1922 in the United States, and now is core equipment used for large chillers and process cooling and heating in industrial applications. The screw compressor of the rotary displacement type was developed by LST– currently, SRM – in the 1930s, and this model was applied for the first time to air compressors. This type of compressor was used for refrigeration applications in the 1960s. Almost at the same time, semi-hermetic screw compressors for water-cooled chillers were developed.
March Special page 48
https://www.ejarn.com/detail.php?id=61889&l_id=
3. Toshiba Carrier Develops World’s Largest Triple Rotary Compressor
In December 2019, Toshiba Carrier announced in a press release that it has newly developed a large-capacity triple-rotary compressor and incorporated it in the company’s high efficiency variable refrigerant flow (VRF) series. The newly developed large capacity triple-rotary compressor has two features: It is the world’s largest capacity direct current (DC) rotary compressor with a triple cylinder, and is driven by a dual-state inverter, a world first for air conditioning use.
March Special page 51
https://www.ejarn.com/detail.php?id=61890&l_id=
4. UK Spin-out’s Modeling Saves Energy in Global Compressor Industry
SCORG modeling and design software developed by PDM Analysis, a spin-out of City, University of London, is designed for screw compressors, expanders and pumps used in many industrial applications including AC&R. Data analyzed by SCORG allow compressor manufacturers to design more efficient systems, and reduces their energy consumption and carbon emissions. Refrigeration contributes to about 25% of total energy usage in the United States in summer. Compressors are used in all refrigeration and air conditioning systems.
March Special page 53
https://www.ejarn.com/detail.php?id=61883&l_id=
5. GMCC Compressors Aim to Cover the Whole World
Guangdong Meizhi Compressor Company (GMCC) is the world’s largest manufacturer of rotary compressors. JARN interviewed Fu Yongjun, president of GMCC, about main products and their advantages, the current business performance, global strategy, and future goal of the company.
March Special page 57
https://www.ejarn.com/detail.php?id=61961&l_id=
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