By refrigerant

To prepare a report for consideration by the 37th OEWG meeting, and thereafter an updated report to be submitted to the 28th MOP.

Speaking on the first day of the Chillventa Congress, Van Baxter – an engineer from the Oak Ridge National Laboratory in the US state of Tennessee – said that the growth of the United States heat pump market was largely due to the lumber industry.

Refcom’s latest F-gas guidance is a practical guide for refrigerant distributors who are unsure about whether or not they can legally supply F gases.

Refcom’s latest F-gas guidance is a practical guide for refrigerant distributors who are unsure about whether or not they can legally supply F gases.

This document has been developed by OzonAction as part of UN Environment’s work programme under the Climate and Clean Air Coalition (CCAC).

This document has been developed by OzonAction as part of UN Environment’s work programme under the Climate and Clean Air Coalition (CCAC).

Thieves are reported to have got away with over $500,000 worth of R22 from a Hudson Technologies warehouse in Champaign, Illinois.

Report summarizes key findings from National Hydrofluorocarbon (HFC) Inventories.

Report summarizes key findings from National Hydrofluorocarbon (HFC) Inventories.

UN Secretary-General Ban Ki-moon 5 October formally made a Depository Notification communicating that the Paris Agreement will enter into force on 4 November 2016.

As the 28th Meeting of the Parties to the Montreal Protocol (MoP28) gets underway in Kigali, Rwanda, the momentum to tackle dangerous climate change has never been greater.

German retail giant ALDI has earned LEED (Leadership in Energy and Environmental Design) gold certification from the U.S. Green Building Council (USGBC) for its ammonia distribution centre and regional headquarters in Moreno Valley, California.

The wide acceptance of new technologies depends on a myriad of factors, in the technological, economic and social field, that form part of a complex network of interactions. Both innovators and technology adopters share a common concern for respecting the economic bottom-line and for choosing solutions that provide the highest possible level of investment security while being framed by solid industry support and favourable policy conditions.

The wide acceptance of new technologies depends on a myriad of factors, in the technological, economic and social field, that form part of a complex network of interactions. Both innovators and technology adopters share a common concern for respecting the economic bottom-line and for choosing solutions that provide the highest possible level of investment security while being framed by solid industry support and favourable policy conditions. The industrial refrigeration industry is no exception to this. While the use of ammonia has not been challenged on grounds of lacking energy efficiency nor overall environmental benefits, the trend towards reducing the refrigerant charge for increased safety is currently changing the industry.

In this project, two newly developed refrigerants, R1234yf and R1234ze have been studied as promising drop-in replacements for the common high global warming potential refrigerants. In view of that, thermodynamic and transport properties of new refrigerants were obtained by RefProp version 7.01 to study and compare their cycle performances with current refrigerants. Furthermore, their environmental and safety aspects have been studied in order to predict probable risks and suitable preparations in different applications. Basic cycle data of both new refrigerants have been calculated for most commonly used condensing and evaporating temperatures. According to evaluation of these tables, both refrigerants generally have comparable COP and volumetric cooling capacity with R134a for an isentropic compression.

In this project, two newly developed refrigerants, R1234yf and R1234ze have been studied as promising drop-in replacements for the common high global warming potential refrigerants. In view of that, thermodynamic and transport properties of new refrigerants were obtained by RefProp version 7.01 to study and compare their cycle performances with current refrigerants.

The viability of new lower GWP alternative refrigerants in high ambients are said to have been proven in new tests.

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

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.

Source Refrigeration & HVAC, a major U.S. contractor based in Anaheim, California, is in the process of installing a subcritical CO₂ refrigeration system at its headquarters’ training centre to serve as a technician-training tool.