HVAC


Alternative Refrigerant Evaluation for High-Ambient-Temperature Environments: R-22 and R-410A Alternatives for Mini-Split Air Conditioners

The Oak Ridge National Laboratory High-Ambient-Temperature Evaluation Program for Low Global Warming Potential (Low-GWP) Refrigerants project was aimed to develop an understanding of the performance of low-GWP alternative refrigerants to hydrochlorofluorocarbon (HCFC) and hydrofluorocarbon (HFC) refrigerants in mini-split air conditioners under high-ambient-temperature conditions. This final report describes the parties involved, the alternative refrigerant selection process, the test procedures, and the final results.

Arkema: proposed closure of the R134a fluorogas activity on the Pierre-Bénite site

The R134a market in Europe is set to undergo an inevitable decline from 1st January 2017 following regulatory changes affecting fluorinated gases for automotive air conditioning taking effect on that date. In this sharply declining market, Arkema has decided to put forward to the Central Works Council today a project for the closure of the R134a fluorogas plant at its Pierre-Bénite site (France). This proposed closure would not result in any redundancies.

Ohio man jailed for venting refrigerant

USA: A 48-year-old Ohio man has been sentenced to 4½ years in prison and a fine of over $29,000 for the illegal venting of refrigerant.
The Zanesville Times reports that Shannon Wayne Harrold, 48, of Glenford, Ohio, was sentenced yesterday to 54 months in prison and ordered to pay $29,045 in restitution for violating the Clean Air Act by cutting the tubing on air conditioning units he was stealing, which released R22 into the environment.

Commercial CO2 refrigeration systems guide for subcritical and transcritical CO2 applications. Emerson climate technologies

CO2 is termed a “Natural Refrigerant” because it exists in the natural environment. Release into the atmosphere from refrigeration systems has a negligible effect compared to other CO2 sources that are driving the global warming debate. As a refrigerant, it is a manufactured product that conforms to strict purity specifications. Its physical properties require special handling.

Guidelines for the use of hydrocarbon refrigerants in static refrigeration and air conditioning systems

With the introduction of the revised EU Ozone Depleting Substances Regulation and the introduction of a Climate Change Policy by the UK Government, it is considered likely that more refrigeration system designers and users will be turning to alternative refrigerants such as hydrocarbons. The increased application of this technology will bring with it many technical and safety issues.

Guideline for life cycle climate performance

Climate change is an increasingly important global concern with far reaching effects. The heating, ventilation, air conditioning, and refrigeration (HVAC&R) industry is allotting a significant amount of effort to reduce the environmental impacts of HVAC&R systems. Discussions about the climate impact is often limited to the GWP of the fluids used, but this is far too restrictive, as it does not take into account the real emissions of fluids, and ignores indirect emissions, especially those related to energy use over the life time of the equipment.

Practical guide for certification of technicians in refrigeration and air conditioning

This practical guide is designed to improve the skills and knowledge of professionals in the refrigeration sector that need to be certified in accordance with the requirements of the EEU (Eurasian Economic Union). The guide contains basic information on refrigeration equipment, main components of the refrigeration system, Besides, it provides information on commercial, industrial and mobile air conditioners, transport refrigeration, brazing of pipes of the refrigeration system, etc.