Technical Note


JATL and EEI Hold Seminar on Air Conditioner Performance Tes

On February 18, the Japan Air Conditioning and Refrigeration Testing Laboratory (JATL) jointly held the JATL & EEI One-Day Seminar on air conditioner performance testing with the Electrical and El...


Novel Coronavirus Directly Hits AC Industry Chain

In recent months, the novel coronavirus has spread all over the world. On March 11, the World Health Organization (WHO) declared the novel coronavirus a pandemic as it spread in more than 100 countrie...


Musings on HVAC&R -- AC- and Heat Pump-related Books around

Sei Suma, senior advisor, Japan Air Conditioning, Heating & Refrigeration News (JARN) Sales Status at Bookstores Japan When the general public in Japan is asked “Why do air conditione...


China Accelerates Construction of Intelligent Production Lin

Chinese manufacturers produce about 80% of all air conditioners that enter the global market, utilizing their leading automated mass production capability. However, in the face of direct and indirect ...


Clean Air Conditioners and Ventilation

Clean Air Conditioners In the history of air conditioners, a huge amount of energy has been channeled into research and development (R&D) of their major functional components such as compressors,...


ICR2019 – The Ideal Platform to Take Stock of the Historic K

The 25th International Institute of Refrigeration (IIR) International Congress of Refrigeration (ICR2019) was successfully staged in Montreal, Canada, on August 24–30. JARN participated in the c...


Japanese AC Manufacturers Further Strengthen Technical Capab

According to the Development Bank of Japan (DBJ), domestic capital investment in fiscal year 2019 (end of March 2020) is planned to achieve double-digit growth in both the manufacturing and non-manufa...


Improving Air Quality with RACs

Sei Suma, senior adviser, Japan Air Conditioning, Heating & Refrigeration News (JARN) The main function of air conditioners is to create a comfortable thermal environment by regulating the indo...


Fan Motors and Instrumentation

– The Latest Trends A fan motor, as the name indicates, refers to a motor that drives the fan’s blade. Fans are divided into several types according to factors such as the required air ...


International Conference on Compressors and Their Systems

The 11th biennial International Conference on Compressors and their Systems was organized by the renowned Centre for Compressor Technology and held from September 11–13 at City, University of Lo...


Three Selected Refrigeration Papers Presented at the 18th Eu

From June 6 to 7, 2019, the 18th European Conference–the Latest Technology in Air Conditioning and Refrigeration was held at Politecnico of Milan, Italy. This conference was co-organized by Cent...


Recent Trends of Refrigerants for Mid-and Low-temp Equipment

Here, mid-and low-temperature equipment refers to equipment commonly called air conditioners for comfort cooling as well as refrigeration equipment for the purpose of cooling down to approximately &nd...

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