Industrial Technology, Refrigeration
Cold-SNAP: the Newest and Coolest Technology in Refrigeration
This article was originally published on coolingpost.com on May 10, 2020. USA: A Harvard University team has developed an indirect evaporative cooling system which can cool air without adding humidity at a fraction of the energy cost of traditional cooling units. Evaporative cooling is a well established technology which works well in a number of […]
air conditioning, Cold-SNAP, compressors, cooling, Harvard, refrigeration
Molecular Pumps Could Be Long-Term Replacement for Age-old Mechanical Pumps
This article was originally written by Genoa Blankenship, pnnl.com, July 8, 2019 Greek mathematician and physicist Archimedes set off an historical evolution of the mechanical pump after he invented the screw pump around 200 BC. Despite the universal presence of the mechanical pump, a tool for moving gas or liquid, a replacement has long been […]
air conditioning, cooling, heating, mechanical pump, molecular pump
Building Technology, Emerging Technology, HVAC
CO2 Heat Pumps Become a Promising Solution for Hotels
After six months of operation in a Norwegian hotel, an all-in-one CO2 heat pump saves 59-69% of energy compared to an electric boiler.
air conditioning, CO2 heat pump, electric boiler, heat pumps, hotels
Building Technology, Emerging Technology, HVAC
New Polaris AC Uses Hydrocarbon Blend Refrigerant
Polaris Technologies has launched a ducted air-conditioning unit based on natural refrigerant propane (R290) in a hydrocarbon blend.
ac, air conditioning, hydrocarbon refrigerant, Polaris, R290
Emerging Technology, Industrial Technology, Refrigeration
CO2 as the Refrigerant for Mobile AC Reduces Indirect Emissions
Researchers from the Technical University of Braunschweig and Volkswagen have found a CO2-based heat pump to be the most efficient of four options studied for mobile air conditioning (MAC).
air conditioning, automobile, BEV, CO2, mobile air conditioning
The History of Air Conditioning and the Future of Thermal Design
Jesse Remillard, ERS, for Zondits A recent episode of the 99% Invisible podcast explores the origins of air conditioning (A/C) and how the widespread adoption of central air systems affected building designs thereafter. The 99% Invisible podcast is all about the things that largely go unnoticed but are essential to the modern world we live […]
air conditioning, building design, HVAC, podcast, thermal efficiency
Industrial Technology, Refrigeration
Major U.S. Retailer using Low-Charge Ammonia Chillers for Air-conditioning
Major U.S. retailer using MRBRAZ ammonia chillers for AC Ammonia 21, March 15, 2017 MRBRAZ & ASSOCIATES, an engineering design firm based in Azle, Texas, has designed and installed low-charge DX ammonia chillers that provide air conditioning in office space at about 10 warehouse locations run by a major U.S. retailer, including four in the […]
Is it Time to Repair or Replace Your Condensing Unit?
Condenser Units: When to Repair and When to Replace ACHR News, June 6, 2016. Image credits: stevepb CAUSE OF FAILURE Many things can cause an outdoor condensing unit to stop working, the most common of which are compressor and coil failures. Scott Merritt, owner of Fire & Ice Heating & Air Conditioning in Columbus, Ohio, also […]
ac, air conditioning, coil failure, compressor, condenser units
The Staggering Growth of Global Air Conditioning
The world is about to install 700 million air conditioners. Here’s what that means for the climate The Washington Post, May 31, 2016 In just 15 years, urban areas of China went from just a few percentage points of air conditioning penetration to exceeding 100 percent — “i.e. more than one room air conditioner (AC) […]
Advanced Cooling Challenge, air conditioning, China a/c, Climate Change, gas emissions, India a/c
Air Conditioning Technology: Thinking Beyond Energy Efficiency
These non-air conditioned ways of keeping cool could make a huge difference with climate change PRI, August 22, 2015. Image credit: CWCS Managed Hosting Air conditioning not only lowers the temperature of buildings, it also lowers humidity in those same buildings. The electricity required to power this environmental control, however, is a major energy drain. Michael […]
air conditioning, electricity, humidity, mems device, subterranean building techniques