The Defense Commissary Agency (DeCA) currently operates a 117,000-square foot commissary in San Antonio, Texas. The store is located in the community service area of the Lackland Air Force Base and is surrounded by other retail stores, banks, schools, and housing.
The container classroom responds to industry demand for training on CO2 refrigeration systems.
Russian retailer Magnit opened a new supermarket featuring a CO2 transcritical refrigeration system manufactured and installed by NORD-SM with UNIDO technical support.
The book Refrigeration – Solved Examples is intended as a reference book for practicing engineers who would appreciate having a summary of useful formulae made available to them. It should serve as useful supplementary reading to students at various academic levels, lecturers and research workers.
Heat exchanger, tied to the U-Turn NH3 separator, to serve growing market for cascade systems.
Ice plant installer Vink sees CO2 systems as the cheapest available option for light industrial applications like in the fishing sector.
I was going to call this post “Playing With Fire” but didn’t for obvious reasons. Anyways, in my last post we saw how CO2 (R744) can be used in both a traditional sub-critical as well as in trans-critical cycles which operate almost backwards to each other. Also, when I typed in trans-critical without the hyphen, Spell Wreck asked me if I meant to type ‘transatlantic’ instead. Um no, but it did remind me of a little bit of history to touch on before we move onto R290. I apologize for the digression but I think you will find it interesting.
I was going to call this post “Playing With Fire” but didn’t for obvious reasons. Anyways, in my last post we saw how CO2 (R744) can be used in both a traditional sub-critical as well as in trans-critical cycles which operate almost backwards to each other. Also, when I typed in trans-critical without the hyphen, Spell Wreck asked me if I meant to type ‘transatlantic’ instead. Um no, but it did remind me of a little bit of history to touch on before we move onto R290. I apologize for the digression but I think you will find it interesting.
“The use of natural refrigerants [like ammonia] is probably more prevalent in breweries than in most industrial or commercial refrigeration plants,” said Mark Bulmer (global segment manager (cooling), GF Piping Systems) at BrauBeviale an international beverage trade fair taking place in Nuremberg, Germany on 8-10 November.
His campaign statements suggest the EPA’s HFC restrictions could be slowed down, impacting CO2 uptake, but industry support of the Kigali Amendment could make HFCs a low priority.
The Swedish transcritical CO2 supplier sees the U.S. food retail sector turning towards natural refrigerant systems.
Eurocold recently installed a CO2 system with parallel compression at a Recheio store in Torres Novas, Portugal.
A combination of the HFO refrigerant 1234ze and “natural” refrigerant CO2 is providing all the ac and refrigeration requirements of a retailer in Brno (CZECH REPUBLIC).
As part of the Kigali agreement to phase-down HFCs, under the Montreal Protocol, China is proposing a review of safety standards to remove barriers to alternatives to HFCs, especially natural refrigerants.
Kysor/Warren, a division and brand of global refrigeration equipment maker Heatcraft Worldwide Refrigeration, is optimistic that deployment of natural refrigerant technologies will expand in the U.S., but the company admits there are some obstacles to overcome.
Kysor/Warren, a division and brand of global refrigeration equipment maker Heatcraft Worldwide Refrigeration, is optimistic that deployment of natural refrigerant technologies will expand in the U.S., but the company admits there are some obstacles to overcome.
Manufacturers see potential for natrefs in onboard trucking in U.S. market.
The ban on the use of R134a in mobile air-conditioning systems within the EU has triggered a series of research projects. Apart from the CO2 technology (page 35), new refrigerants with very low GWP values and similar thermodynamic properties as R134a have been developed.
The ban on the use of R134a in mobile air-conditioning systems within the EU has triggered a series of research projects. Apart from the CO2 technology (page 35), new refrigerants with very low GWP values and similar thermodynamic properties as R134a have been developed.
Stratospheric ozone depletion as well as atmospheric greenhouse effect due to refrigerant emissions have led to drastic changes in the refrigeration and air conditioning technology since the beginning of the 1990s.