Technical Note
JRAIA Clarifies Its Stance on Reviewed GWPs in AR6
On August 9, 2021, the ‘Climate Change 2021: The Physical Science Basis’ was published by the Working Group I contribution to the Sixth Assessment Report (AR6) of the Intergovernmental Pan...
Preventing Refrigerant Leakage Is Not Easy
Sei Suma, senior advisor, Japan Air Conditioning, Heating and Refrigeration News (JARN) Efforts to prevent global warming involve major challenges in the heating, ventilation, air conditioning, and...
Uncertain Resolution of Semiconductor Shortage — AC Industry
The semiconductor shortage that spread globally in 2021 due to the influence of the pandemic has not yet shown signs of being resolved in 2022. There is a view within the semiconductor industry that t...
Musings on HVAC&R — Various Advantages of Ventilation
Sei Suma, senior advisor, Japan Air Conditioning, Heating and Refrigeration News (JARN) Ventilation is the exchange of the inside and outside air of buildings and reduces the concentration of...
CR 2021 Technical Reports - RACs & VRFs
Reported by Associate Professor Wang Baolong and Wang Cuiling of Tsinghua University; Associate Professor Zhang Penglei, Yang Xiaorui, and Li Yue of Nanjing University of Aeronautics and Astronautics ...
Commercialization of Optimal Coupled Control System of Light
An optimal coupled control system of lighting/air conditioning utilizing the hue-heat effect will be commercialized in Japan from 2022. The hue-heat effect is an effect that enables people to perce...
Indoor Air Quality Solutions — Clean AC and Ventilation
Clean AC In recent years, people have become more interested in indoor air quality (IAQ). People rediscovered the importance of IAQ in a context of: rising gas emissions from industrial activities an...
CEATEC 2021 Showcases Latest Technology with Carbon Neutrali
The Japan Electronics and Information Technology Industries Association (JEITA) held CEATEC 2021 Online from October 19 to 22, 2021. This year, the event was held completely online, and it will be del...
JRAIA Symposium Introduces New Technologies with a Focus on
The International Symposium on New Refrigerants and Environmental Technology 2021 was successfully held online on October 14 to 15, 2021. According to the Japan Refrigeration and Air Conditioning Indu...
CR 2021 Technical Reports — Heat Exchangers
Reported by Prof. Liu Jinping, Li Zhifeng, and Liu Jiayao, South China University of Technology Requirements for efficient and compact heat exchangers are increasingly stringent. The performance of...
