Archive by category Technology

Ammonia Gas, Graphene Could Boost Storage Capacity of Batteries

Ammonia Gas, Graphene Could Boost Storage Capacity of Batteries

In yet another application for ammonia and graphene – pure carbon in the form of a very thin, nearly transparent sheet, one atom thick – a Kansas State University engineering team said it has discovered a way to improve sodium- and lithium-ion flexible batteries. The researchers found that sodium storage capacity of paper electrodes depends […]

CO2 Refrigerant Growth Continues

The use of CO2 as a standalone refrigerant in a system is growing in the United States and Europe in larger applications. Reporter Peter Powell for Air Conditioning Heating and Refrigeration News gives a roundup of where and how CO2 is being used. Read the source article at achrnews.com

Researchers Use Ammonia, Graphene, to Build Next-Generation RAM

A research team used a Nobel Prize-winning material, graphene, and ammonia to enhance the properties of a component that could pave the way for the next generation of high-speed, high-capacity RAM computing devices. Read the source article at UNL | Newsroom

PIMA Opens First Ammonia CO2 Cascade System in Central America

The Programa Integral de Mercadeo, or PIMA, a Costa Rican government-run program, re-opened its “National Cold Storage Network” facility located in Barreal, Heredia. The facility represents the first Ammonia CO2 Cascade system installed in Central America. Read the source article at ammonia21.com

Large Food Retailers in Europe Report Shift to Natural Refrigerants

Almost two-thirds of large supermarkets surveyed in northern and western European countries now use natural refrigerants in their stores, according to a new report issued by Carrier Commercial Refrigeration, Europe. The study found that 65% of respondents had begun to implement natural refrigerant technology in their stores.  Read the source article at carrier.com

Understanding the Importance of Passivation

In recent years, as air and water pollution has increased, the quality of the circulated water in evaporative condensers and cooling towers has declined. As regulations limit the use of many corrosion inhibitors for the hot dip galvanizing process, such as chromates, the passivation process for protection has become even more critical. Read the source article at […]

CO2 Refrigerant Growth Continues

The use of CO2 as a standalone refrigerant in a system is growing in the United States and Europe in larger applications. Reporter Peter Powell for Air Conditioning Heating and Refrigeration News gives a roundup of where and how CO2 is being used. Read the source article at achrnews.com

HFO’s Attractive, but Not Yet Satisfactory by Themselves for Comfort Cooling

While the very low direct GWP values HFO’s yield are attractive, none of the HFOs by themselves are fully satisfactory for use in conventional stationary a/c system designs, for reasons of concern about low capacity and flammability, according to a presentation made by Thomas Leck on behalf of colleagues at DuPont. Leck spoke at the15th […]