The upcoming games of the XXX Olympiad in London are featuring some of the latest state-of-the-art refrigeration and air conditioning equipment as well as the use of one of the oldest refrigerants, namely ammonia, as well as other natural refrigerants such as CO2 and HCs.
Vehicle thermal management software aids in a/c system design and predicting performance. It allows engineers to access the required tools and libraries to build simulation models, run simulations, and display results graphically.
From a global perspective, there is a lot of interest in the wider use of R-744 (CO2), especially in supermarket refrigeration. Recently, a number of international studies and seminars have reported some of the latest developments regarding R-744.
The CO2 recorder TR-76Ui three-channel data logger simultaneously measures and records CO2 concentration, temperature, and humidity. The unit has a CO2 range up to 5,000 ppm and a capacity to store up to 8,000 data sets. The supplied software enables the user to download the data recorded.
No technology has been generating more attention in recent months than the use of R-744 (CO2) as a refrigerant. Here are some of the latest announcements from a variety of sources.
Bitzer CO2 Octagon Reciprocating Compressors feature an extended operating envelope for low-temperature applications, with up to 20 percent improvements in energy efficiency over other CO2 compressors, says the company.
Efforts to make CO2 work in transcritical applications got a boost with the announcement the CSC, The Canadian manufacturer of refrigeration systems, will be making a major push in that regard.
No technology has stirred up more attention in recent years than use of carbon dioxide (CO2) as a refrigerant in both stationary and mobile HVACR applications. And yet the technology has more people head scratching over it in terms of dealing with the pressures, efficiencies, installation costs, and servicing skills.
In the move to new refrigerants, while the seals, compression ratios, efficiency ratings, and other considerations were painstakingly engineered, other system components were taken for granted. So the refrigerants changed, but what about the standards governing products that transport and contain those refrigerants?
