Technical Note
Daikin’s Ventilation Technology
Ventilation is indispensable for spaces in which people spend time. In particular, in the context of the COVID-19 pandemic, the importance of ventilation is being reviewed worldwide, and ventilation s...
Panasonic’s Air Purification Technology
With ‘air purification’ in the living environment as theme, Panasonic started research into nanoe technology in 1997. nanoe, the original ionizer to generate ‘nano-sized atomized wat...
Background and Trends in Heating Electrification
With the advent of the Biden administration, the United States returned to the Paris Agreement and entered the competition for decarbonization. In the future, decarbonization is expected to become a c...
Germany Revamps HP Subsidies
Within the German federal subsidy for efficient buildings called BEG, the energetic building subsidy of the federal government was revamped on January 1, 2021. The decision dated from December 17, 202...
Direct Air Capture in the Limelight as a CO2 Reduction Metho
In early 2021, the United States transitioned from the Republican Trump administration to the Democratic Biden administration. New President Biden signed an executive order shortly after the inaugurat...
HFC Alternative Refrigerants Update - Examples of New Refrig
Following is a list of examples of new refrigerant development and application in equipment that have been announced at symposiums and seminars in recent years. R463A: Alternative to R410A (R404A); a...
HFC Alternative Refrigerants Update - Proposals for New Refr
With the adoption of the Kigali Amendment, research and development (R&D) on alternatives to HFC refrigerants and new refrigerants by both the heating, ventilation, air conditioning, and refrigera...
HFC Alternative Refrigerants Update - California’s Regulatio
On December 10, 2020, the California Air Resources Board (CARB) approved rules on regulating HFCs with high GWP that are used as refrigerant (see the January 2021 regular issue of JARN). In the rules approved by CARB, the upper limits on the GWP of refrigerants used in key refrigeration equipment are as follows. In new refrigeration equipment using refrigerant in excess of 50 pounds (22.7 kg...
HFC Alternative Refrigerants Update - U.S. Rejoins the Paris
This January, almost immediately after Joseph Biden was inaugurated as the 46th U.S. president, he signed an executive order to rejoin the inter-national Paris Agreement on climate change that the pre...
Accessories/Parts and Installation Work Influence the Effici
Sei Suma, senior advisor, Japan Air Conditioning, Heating & Refrigeration News (JARN) Newly released air conditioning products attract the attention of many people and are featured in many arti...
