air conditioning Archives – The Green Optimistic

Novel coating to keep buildings cool without air-conditioning

Effie P — Tue, 05 Feb 2019 18:05:44 +0000

Air-conditioning can account for more than 40% of the domestic energy consumption, and contributes to greenhouse emissions by making use of chemical refrigerants such as chlorofluorocarbons and halogenated chlorofluorocarbons. Global temperatures, however, keep rising, and the situation becomes more unbearable in the presence of humidity. At 80% relative humidity, temperatures of 32C can be perceived […]

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Mercedes-Benz Air Conditioning is Greener and Safer

Benji Jerew — Sun, 15 Nov 2015 20:46:19 +0000

In the 1990’s automotive air conditioning systems started switching over from CFC R-12 dichlorodifluoromethane to HFC R-134a tetrafluoroethane, which has significantly less of an ozone-depletion potential. Still, R-134a has a significant global warming potential (GWP), measuring 1,300 on the scale, which has prompted regulators to move for its discontinuation. New mandates specify that new vehicle […]

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ZEF Climatic Table, Zero Energy Alternative to Air-Conditioning

Mila Luleva — Wed, 20 May 2015 19:23:33 +0000

ZEF Climatic Table is the one and only table that controls the temperature in the room without using any electricity. Air-conditioning systems are undoubtedly some of the most energy-consuming techs around the house or the office. As soon as the temperature goes just that little bit above normal and the air-con is on, as if […]

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Electric Vehicles Could Reduce Summer City Emissions, say Researchers

Benji Jerew — Tue, 24 Mar 2015 18:34:55 +0000

We already know that electric vehicles can significantly reduce emissions, merely by virtue of the fact that they can be recharged via renewable energy, but a new study suggests that their effect on emissions is greater than their own emissions reduction. By themselves, electric vehicles generate zero emissions, but they also don’t generate nearly as […]

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Energy-Efficient Air Conditioning System from MIT Knows Where You Are

Mila Luleva — Thu, 12 Feb 2015 13:31:30 +0000

MIT researchers are working on the ultimate energy-efficient air conditioning system that follows you around like a puppy, making sure that the space around you is as cool as you want it to be. We all know that air-conditioning (AC) systems are huge energy and water wasters. Yet, the moment temperature gets a bit higher than we […]

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IBM and Airlight Energy Develop a Unique Multifunctional Solar Concentrator

Mila Luleva — Thu, 25 Sep 2014 13:51:25 +0000

You might wander what would happen if you bring together an IT giant, like IBM, and a small private energy company that develops solar technologies, like the Swiss-based Airlight Energy. Well, wonder no more, because they teamed up, and developed the ultimate solar concentrator that increases the incoming solar radiation 2,000 times, produces fresh water and air […]

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‘Cold Pot’: A Bio Air Conditioner That Cools Down Air Using Only Water

Mila Luleva — Mon, 07 Apr 2014 18:37:00 +0000

Ever since IPCC released their report last week, warnings for rising temperatures and urges to switch to efficient and renewable energy sources, have flooded the news feeds. The recent drought that occurred in California last month could only serve as an eye-opener, as it gave us a sneak preview of what is very likely to […]

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How Smart Climate Control Saves Energy and Money

Benji Jerew — Wed, 19 Jun 2013 18:33:33 +0000

Current climate control technology in a building is not as advanced as it could be, and is wasting thousands of dollars a year because of it. If you think about climate control in a modern automobile, you can set your desired temperature, and the system takes care of the rest. Based on solar load, air […]

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Ford and MIT Developing Ultra-Efficient EV Cabin Heater/Cooler

Ovidiu Sandru — Tue, 23 Apr 2013 07:48:08 +0000

Cooling or heating an electric car’s cabin can prove a difficult task from an energy efficiency standpoint. To tackle this issue, MIT researchers and Ford have developed a “thermal battery” system that’s far more advanced than what car makers use today. For example, a Tesla Model S driven by a NY Times reporter, John Broder, […]

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Nanostructured Photonic Materials Cool Buildings With Solar Power

Mila Luleva — Fri, 29 Mar 2013 20:07:53 +0000

An innovative technology by engineers at Stanford functions like an air-conditioning system, but it is made of nanostructured photonic materials. The so-called “passive solar radiator” can cool any building even when the sun is shining brightly. According to the researchers, who published a study in the latest issue of Nano Letters, the system can be […]

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Daimler Calls Out Honeywell on New “Greener” Refrigerant for Safety Issues

Benji Jerew — Tue, 12 Feb 2013 17:28:00 +0000

Refrigerators and air-conditioners are basically the same thing, a heat pump that transfers heat from one area to another. In the case of a vehicle air conditioning system, heat is transferred from the vehicle’s interior to the exterior. There are two sides to the system, separated by the compressor and the expansion valve, one high-pressure […]

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Innovative Solar Powered Air Conditioning System Uses 90% Less Energy

Ovidiu Sandru — Wed, 29 Aug 2012 18:33:18 +0000

Cooling and heating are the two most energy consuming activities in a home – 65 percent. A Queensland University of Technology (QUT) researcher in Australia has invented a solar powered cooling/heating system that should cut energy use by 90 percent, with the goal of becoming fully grid-independent. The researcher’s name is Paolo Corrada and he […]

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Southern California Implementing 53 MW Ice Energy Storage for Air Conditioning Systems

Ovidiu Sandru — Mon, 24 May 2010 07:35:34 +0000

Ice can be used to store energy (though the other way we may be tempted to think) just like hot bricks or molten salt. Several Southern California municipal utilities will be implementing ice-based energy storage devices to reduce the air conditioning consumption in government offices and commercial buildings. Over the next two years, they will install 6,000 devices at 1,500 locations, storing around 53 megawatts of energy in total.

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