By refrigerant

Variable frequency drives from Welshpool-based Invertek Drives have been retrofitted to a CO₂ based HVACR system at a hospital in Trondheim, Norway.

The Washington, D.C.-based Environmental Investigation Agency (EIA) has called on the U.S. heating and cooling sector to proactively get involved in modernizing outdated U.S. safety standards impeding the adoption of hydrocarbon air-conditioning.

A switch to propane refrigerant for space cooling could avoid a 0.09°C increase in global temperature by the end of the century, a new report suggests.

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.

One livestream, 3 days, 32 Speakers, 650+ registrations from 100+ countries and 330 questions from the audience – The Green Cooling Summit in May 2021 challenged but also excited our team. This year there will be a new edition of the Summit, jointly organised by the German Environment Agency (UBA) and GIZ Proklima on behalf of the German Federal Ministry for the Environment, Nature Conversation, Nuclear Safety and Consumer Protection (BMUV) and the German Federal Ministry for Economic Cooperation and Development (BMZ).

UNDP upgrades methodology on assessing GHG emissions from refrigerants.

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.

Carrier Transicold is to make lower GWP refrigerant R452A the standard gas for all new transport refrigeration units in North America from October.

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.

A-Gas Managing Director – Europe, John Ormerod, explains why being inflexible about the use of high GWP HFC refrigerants in the short term may do more harm than good.

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.

A new group, the Coalition for Green Heating and Cooling, aims to persuade Italian and EU policymakers to pursue more aggressive measures in the upcoming revision of the F-gas Regulation, including support for natural refrigerants across HVAC&R sectors.

This summer’s heatwave in the UK has created havoc for many supermarkets with multiple stories of refrigeration system failures, lost stock and lost sales. All refrigeration technologies have been affected by this extreme weather, but now, with so many retailers using CO₂ systems, Daniel Clark owner and MD at Preston-based CO₂ systems manufacturer Isentra, asks whether 130bar transcritical systems have now become a necessity?

The U.S. General Service Administration (GSA), a government agency that supports other federal agencies, has shortlisted a CO₂ (R744)-based heat pump from Likido as one of nine “next-generation” building technologies.

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.