The newly founded German transport refrigeration specialist ECOOLTEC Grosskopf has released an electrically driven transport refrigeration unit for trucks, including semi-trailers and rigid vehicle bodies, that uses a small charge of hydrocarbon propene (R1270) as the primary refrigerant, together with CO2 (R744) in the secondary circuit.
Variable frequency drives from Welshpool-based Invertek Drives have been retrofitted to a CO2 based HVACR system at a hospital in Trondheim, Norway.
The models being launched come with a set of new features, in comparison with Embraco’s previous condensing units’ portfolios. One is the mini-channel condenser technology, which is based on thinner tubes that raise the pressure on the refrigerant and require a smaller refrigerant charge than other technologies. Another feature is the electronic fan motors (ECM technology) in all models, which further increases energy efficiency.
In a three-year research study testing the viability of German manufacturer Liebherr’s CO2 (R744) air-conditioning system on a long-distance passenger train, the “eco2jet” project showed an energy efficiency improvement of 30%.
Functioning prototypes show how CO2 (R744) can be successfully used in applications such as bottle coolers, refrigerated containers and mobile air-conditioning without increasing costs or compromising on efficiency as compared to HFCs, according to Stefan Elbel, CEO of Creative Thermal Solutions (CTS), the Urbana, Illinois (U.S.), HVAC&R research company.
Emerson announced its E360 Webinar series, “The Journey to Lower-GWP Refrigerants” will include five webinars designed to prepare food retailers and other industry stakeholders for the U.S. phasedown of hydrofluorocarbon (HFC) refrigerants. The series, which kicked off with the webinars “Regulatory Update: The Latest in Refrigerant Rulemaking and Safety Standards” and “The Role of Emerging Refrigerants Alternatives: CO2, A2Ls and R-290,” is designed to provide food retailers with strategies to achieve compliance of federal refrigerant mandates by exploring refrigerant and equipment options that align with their operational and sustainability goals.
Started accepting orders for commercial freezers using natural refrigerants.
Daikin has recently been involved in the commissioning of three water-cooled R1234ze chiller units at CERN, the European Organisation for Nuclear Research and home of the Large Hadron Collider.
Scantec Refrigeration Technologies, an Australian industrial refrigeration system provider, installed a low-charge ammonia/NH3 (R717) system to serve three high-rise freezer rooms at a Malaysian cold storage facility, achieving a specific energy consumption (SEC) more than seven times lower than that of the facility’s previous ammonia liquid-overfeed system.
Energy Partners Refrigeration (EPR), a South African cooling-as-a-service (CaaS) implementer, installed a 10MW (2,843TR) two-stage ammonia/NH3 (R717) system at South Africa’s largest dairy company, Clover, in 2022, and the performance has so far exceeded forecasts.
Water-cooled condensers that use evaporative heat rejection significantly reduce energy consumption compared to similarly sized systems utilizing either air-cooled or adiabatic heat rejection, according to an analysis by Steve Kline, Product Applications Manage for Baltimore Aircoil Company (BAC).
EcoChill’s on-farm CO2 cooling and water heating system for dairy farms could realize significant savings, presented Matthew Darby during ATMO APAC.
A study of two air-to-water reversible CO2 (R744) heat pumps with ejectors at a Swiss shopping center led to improved system performance at a subsequent installation, according to an article by Jonas Schönenberger, Head of Research and Development at Swiss engineering consultancy Frigo-Consulting.
Kaltra handed over a low-GWP chiller from its most innovative, ErP 2021 compliant Lightstream Screw II lineup to the client in the UK.
As the race to decarbonize gains momentum and interest in electric heat pumps builds, natural refrigerants, such as CO2 (R744), ammonia/NH3 (R717) and propane (R290), are key to long-term success and sustainability, according to clean energy expert Andy Baker, Owner and Project Manager at Seattle, Washington-based YourCleanEnergy.
A CO2 air conditioning system from German manufacturer Liebherr has been successfully tested in a passenger train in Austria.
By transitioning its lineup of commercial refrigerators and freezers to propane (R290), Georgia (U.S.)-based manufacturer Hoshizaki America has reduced the energy consumption of its equipment by an average of 11%, according to a recent presentation from the company’s Director of Engineering, David Sellers.
In a study coordinated by energy-efficiency-as-a-service (EeaaS) company Budderfly, two Subway restaurants in Connecticut (U.S.) realized average energy savings of 50% by installing U.S. manufacturer Refrigerated Solutions Group (RSG)’s new propane (R290) Capsule Pak ECO refrigeration system for indoor walk-in coolers and freezers.
Dutch supermarket chain Boon’s Markt, part of the Boon Food Group, has fitted its newest store in the village of Wolphaartsdijk with propane (R290)-based refrigeration display cases from Lithuanian manufacturer Freor.
“Awareness is very important” for the wider adoption of ammonia/NH3 (R717)-based industrial refrigeration in Australia, said Stefan Jensen, Managing Director at Scantec Refrigeration Technologies, an Australian industrial refrigeration system provider.