Palladio Inverter Screws by RefPower Help Chiller OEMs Improve Energy Efficiency

Palladio Inverter Screws by RefPower Help Chiller OEMs Improve Energy Efficiency

Over the past two decades, screw compressors have undergone revolutionary changes several times: for instance, they now adopt inverter technology. Inverter technology can manage the part load energy efficiency of HVAC&R systems very well, and has become a consolidated energy efficient solution in the industry.

Latest headlines

Shuangliang Unveils New Magnetic Bearing Inverter Centrifugal Chiller

Shuangliang initiated the global launch of a new oil-free magnetic bearing inverter centrifugal chiller in August 2020. The new-type chiller is different from the previous model and applies a Danfoss Turbocor TT series magnetic bearing centrifugal compressor. The cooling capacity of this new product line ranges from 100 to 1,600 USRT.

Johnson Controls-Hitachi Air Conditioning: DXS Single-effect Double-lift Absorption Chiller

‘DXS’ Hitachi single-effect double-lift absorption chiller, which was developed under the commissioned research of New Energy and Industrial Technology Development Organization (NEDO), Japan, is a hot-water-driven absorption chiller which recovers unused thermal energy for cooling effectively, by utilizing thermal energy down to as low as approximately 55°C.

Panasonic’s ECOi-W Chiller Series Expanded by Adding Cooling-only Units

Panasonic Appliances Air Conditioning Europe has newly added cooling-only units to the currently available ECOi-W series heat pump chillers. The ECOi-W provides a wide variety of reliable and powerful HVAC chiller solutions to meet the needs of hotels, commercial and industrial premises.


Data on 2019 from AFEC, the Spanish air conditioning equipment manufacturers’ association, show that residential system sales reached over €512 million (US$ 557 million). The residential sector comprised: portable and window units; floor/ceiling/wall units; wall-mounted single-and multi-split units; ducted units; water chillers; fan coils; multitask heat pumps; compact heat pump water heaters; and split-type heat pump water heaters.


According to statistics from Yonhap News Agency, the South Korea Central Bank indicates that the country has seen GDP growth of 2% year on year in 2019. The first quarter saw GDP growth of 1.7% year on year, while the second and third quarters saw an actual growth rate of 2%, and the fourth quarter saw a slightly enhanced growth rate of 2.3%. The growth rate per quarter has signs indicating recovery.


According to the Economic and Social Research Institute (ESRI), Cabinet Office, Government of Japan, the real GDP growth in fiscal year 2019 (ending March 2020) was 0%. A breakdown of central chilled water system shipments shows that positive-displacement type chillers decreased by 1.7%, centrifugal chillers decreased by 20.2%, absorption chillers increased by 9.8%, AHUs decreased by 6.9%, and FCUs increased by 1.4%.


Chiller manufacturers are generally reluctant to share shipment data, making it difficult to accurately estimate the scale of the Indian chiller market. Different manufacturers follow different financial years, hence compiling data for a given year requires some extrapolation and approximation.

Cover Story

UK £2 Billion New Grant Is Designed to Boost Heat Pump Demand

In August 2020, the UK government announced a Green Homes Grant which will give homeowners in England vouchers worth up to £2 billion (US$ 2.6 billion) in total, to implement one or more green cooling and heating measures including air-source heat pumps (ASHPs) in existing properties during the planned period spanning September 30, 2020 to March 31, 2021.

Magnetic Bearing Centrifugal Chillers Boosted by Rapidly Growing Data Center Sector

This year’s global economy has been hit hard by the impact of the COVID-19 pandemic. In this difficult context, the information technology (IT) industry is one of the few areas that remains strong. Investments in the fifth generation (5G) infrastructure around the globe combined with prolonged remote working as a measure implemented to prevent the spread of COVID-19, investments in infrastructure by IT companies are gaining momentum. In particular, demand for data centers is growing in order to respond to the rapidly increasing amount of information handled. In Japan, for example, IDC Japan has predicted that domestic data center construction investment in 2020 will increase by 55.7% year on year to ¥183 billion (US$ 1.7 billion).


Trane Consistently Searches for More Optimal Refrigerants for Its Chillers

JARN interviewed Stephen Kujak, director of next-generation refrigerant research at Trane Technologies, who gave background on new refrigerants from the aspects of their characteristics, their applications, etc. and also Trane’s strategy regarding chillers that adopt such refrigerants, based on his in-depth expertise in the field of refrigerants.

MHI Expands Its Presence around the Globe with Total HVAC&R Solutions

JARN interviewed Kaoru Kusumoto, president of Mitsubishi Heavy Industries Thermal Systems (MHI Thermal Systems), to hear about the company’s wide range of products and the respective strategies adopted. JARN (J): MHI Thermal Systems has a wide range of products from residential to commercial and industrial use. Of them, we think that room air conditioners (RACs), packaged air conditioners (PACs), and variable refrigerant flow (VRF) systems are important fields in terms of sales volumes.


Regal Hermetic Compressor Permanent Magnet Motor Solutions

Genteq hermetic motors are designed for commercial air conditioning and refrigeration compressor equipment manufacturers. The brand is prized for its high performance, quality,  and  innovation including permanent magnet (PM) motor solutions designed for application in hermetic refrigerant compressors.

Sanhua DC Variable-frequency Control Solution

Sanhua DC variable-frequency technology is an optimal energy-saving solution for cooling systems used for data centers. It features most advanced 180° sine-wave control technology with a maximum capacity of 22 hp. Multiple protections for module components and air cooling and refrigerant cooling for inverter systems enable this technology to operate stably, even at outdoor temperatures down to –40ºC. Energy savings of over 30% are achieved.

Panasonic (Dalian) Extends Range of Compressors for Chiller and Rooftop Applications

Panasonic Appliances Compressor (Dalian) produces scroll compressors from 3 to 15 hp for chillers, AHUs, rooftops, and data center air conditioning systems, and continues launching new compressors in these application domains.


Mitsubishi Electric Releases New Chiller Solution Exceeding ErPLot21

Mitsubishi Electric Hydronics & IT Cooling Systems (MEHITS) newly released a chiller solution in Europe which exceeds the upcoming seasonal efficiency threshold 2021, set by EcoDesign Directive (ErPLot21).

Embraco launches NEX, new robust compressors platform for commercial applications

Embraco, a global provider of refrigeration technology for the complete domestic and commercial cold chain, and part of the Nidec Global Appliance portfolio of brands, announces the launch in September of the NEX compressors platform, fourth generation after the NE, NEK and NEU families.

MHI Thermal Systems develops air conditioners using R32 refrigerant for the European market

Mitsubishi Heavy Industries Thermal Systems, Ltd. (MHI Thermal Systems), a Mitsubishi Heavy Industries (MHI) Group company, is launching a line of single fan and multiple room outdoor unit air conditioners for buildings that use R32 refrigerant. Launched specifically for the European market, the systems will sell through MHI subsidiary Mitsubishi Heavy Industries Air-Conditioning Europe, Ltd. (MHIAE).

Photo Report

CRH 2020 Seeks Innovative Development in Post-Pandemic Era -- Photo Report

McQuay—displayed its products with various technologies such as magnetic bearing, new refrigerants, air purification, composite evaporative cooling, fresh air, and building automation. McQuay had three products on the Innovation Product award list, namely the WMTC magnetic-bearing centrifugal chiller, the MAC150ER5LH air-cooled inverter heat pump chiller for floor heating and air conditioning of high-end villas, and a water-cooled heat pump modular chiller featuring composite evaporative cooling.

CRH 2020 Seeks Innovative Development in Post-Pandemic Era

With ‘Making steady progress, tiding over difficulties, leading by quality and seeking innovative development’ as theme this year, under the difficult global situation impacted by COVID-19, China Refrigeration Expo (CRH) was successfully held at Chongqing International Expo Center from August 19 to 21 in 2020. CRH, the 31st International Exhibition for Refrigeration, Air-conditioning, Heating and Ventilation, Frozen Food Processing, Packaging and Storage, was jointly sponsored by China Council for the Promotion of International Trade Beijing Sub-council (CCPIT), Chinese Association of Refrigeration (CAR), and China Refrigeration and Air-Conditioning Industry Association (CRAA), organized by Beijing International Exhibition Center, and co-organized by Chongqing Association of Refrigeration and Hubei Association of Refrigeration.

Fooma Japan Becomes First Web Exhibition

Impacted by the spread of the COVID-19 pandemic, 2020 Osaka International Food Machinery and Technology Exhibition ( Fooma Japan), which was to be held from the end of June was cancelled, but  is being held online instead. Now, the Web Exhibition is taking place from June 23 until the end of August. Fooma Japan proposes an ‘affluent future explored through food technology’ through exhibition/ demonstrations of state-of-the-art food machinery technology, products and services.

Midez CAC