Technical Note


Instrumentation and Components

Although instrumentation may be an unfamiliar term, it generally refers to the equipping of a large system at a plant or factory with sensors, measuring instruments, control units, etc. in order to op...


New Refrigerants with Low GWPs for Chillers – Low and Medium

 In October 2016, the 197 Parties to the Montreal Protocol finally agreed to an amendment governing the phase-down of the production and consumption of hydrofluorocarbons (HFCs) including R134a t...


New Annex: 53 - Advanced Cooling/Refrigeration Technologies

2 November, 2018 Growing populations and improving economies worldwide, especially in the developing world, are projected to lead to huge increases in global demand for space cooling, dehumidificatio...


Johnson Controls: 2018 Energy Efficiency Indicator

November 1, 2018 Johnson Controls conducts an annual Energy Efficiency Indicator survey tracking current and planned investments, key drivers, and organizational barriers to improving energy efficien...


Refrigeration Compressors and Refrigerants

Reported by Professor Ma Guoyuan and Doctor Xu Shuxue of Beijing University of Technology Mainstream refrigeration and heat pump compressors were exhibited at this year’s China Refrigeration ex...


Purdue Conferences Present Research Contributing to Sustaina

During the four-day period from July 9–12, 2018, the 24th International Compressor Engineering Conference, the 17th International Refrigeration and Air Conditioning Conference, and the fifth Int...


Fans and Motors

Of fluid machinery that compress gas, those with discharge pressures lower than 30 kPa are called fans, those with discharge pressures lower than 200 kPa are called blowers, and those with discharge p...


Honeywell Launches Solstice L41y Refrigerant, Alternative to

On September 11, 2018, Honeywell announced the commercial availability of Solstice L41y (ASHRAE refrigerant number: R452B), a reduced global-warming-potential (GWP) refrigerant (mildly flammable) de-s...


Development of Scroll Compressor Technologies

— Continued from August Issue Reported by Kenji Tojo, Tojo R&D Office Compliance Mechanism For higher scroll compressor efficiency, airtightness must be maintained by curbing leakage ...


The 13th International Symposium on New Refrigerants and Env

Japan Refrigeration and Air Conditioning Industry Association (JRAIA) will host the 13th International Symposium on New Refrigerants and Environmental Technology at the International Conference Center...


Future Prospects of Smart Air Conditioners

A smart air conditioner is one of the so-called smart home electric appliances that can be remotely operated and monitored thanks to the incorporation a set of advanced communication functions and by ...