Zondits

Industrial Technology, Refrigeration

Cold-SNAP: the Newest and Coolest Technology in Refrigeration

5 Jun , 2020  

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 […]

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Building Technology, HVAC

Molecular Pumps Could Be Long-Term Replacement for Age-old Mechanical Pumps

22 Aug , 2019  

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 […]

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Building Technology, Emerging Technology, HVAC

CO2 Heat Pumps Become a Promising Solution for Hotels

27 May , 2019  

heat pumps

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.

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Building Technology, Emerging Technology, HVAC

New Polaris AC Uses Hydrocarbon Blend Refrigerant

5 Apr , 2019  

hydrocarbon

Polaris Technologies has launched a ducted air-conditioning unit based on natural refrigerant propane (R290) in a hydrocarbon blend.

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Emerging Technology, Industrial Technology, Refrigeration

CO2 as the Refrigerant for Mobile AC Reduces Indirect Emissions

20 Mar , 2019  

mobile ac

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).

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Building Technology, HVAC

The History of Air Conditioning and the Future of Thermal Design

21 Feb , 2018  

air conditioning

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 […]

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Industrial Technology, Refrigeration

Major U.S. Retailer using Low-Charge Ammonia Chillers for Air-conditioning

27 Mar , 2017  

MRBRAZ ammonia chiller

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 […]

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Building Technology, HVAC

Is it Time to Repair or Replace Your Condensing Unit?

6 Jun , 2016  

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 […]

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Building Technology, HVAC

The Staggering Growth of Global Air Conditioning

1 Jun , 2016  

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) […]

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Building Technology, HVAC

Air Conditioning Technology: Thinking Beyond Energy Efficiency

27 Aug , 2015  

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 […]

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