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Položky se štítkem energy efficiency .

[ECO]Design our future

Imagine a desert landscape, with vast clearings extending to the horizon. The earth is tinged a red copper colour, and all around there is oppressive silence among the steep rocky slopes, almost recalling an ancient civilisation. Even though this description has nothing to do with the Earth as we know it today, and resembles more what we know about Mars, it is a way of illustrating what our...
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Natural refrigerants “to avoid a new problem”

Since 1994, every two years, researchers on compression refrigeration circuits around the world meet in a different city to share their work and experiences on natural refrigerants, in honour to Gustav Lorentzen , the Norwegian scientist who rediscovered CO 2 as a refrigerant in heating and cooling applications. This rediscovery happened in the late 1980s, crucial days for refrigerants, as...
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Are self-contained units ready for natural refrigerants?

The new requirements for reducing CO 2 emissions due to refrigerant and electricity consumption are leading retailers to consider other alternatives to traditional centralised systems. One of the preferred options is the use of plug-in and semi plug-in units , and these are indeed being increasingly used worldwide in different types of supermarkets, especially medium-sized stores. The...
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What happens at Purdue, innovates the HVAC/R industry…and just might save the world

Every other summer since 1972 a community of brilliant minds comprised of academic researchers, students, and industry professionals gather in central Indiana, USA to share their findings on various topics that push the limits of current technologies in the built environment. This past week under the backdrop of a scorching July heatwave the Purdue University held its 24 th Compressor...
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Goose-bumps rooms, energy saving and IoT

A report from the ASHRAE Summer Conference in Houston, 23-27 June 2018 I landed in Houston on June 21 and was welcomed by a nice and warm breeze blowing in from the Gulf. “Summer again!”, I thought, after the intercontinental flight from Europe during which I felt a bit cold, even though I am used to a slightly low temperature on those long-haul flights. Taxi trip. After...
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Ten findings on the Australian HVAC/R market

It seems that the characteristic optimism of Australians is also reflected in the country’s HVAC/R market. Whereas HFC refrigerant prices in Europe are rising dramatically, and the lack of a drop-in for R-410A is creating great concern among stakeholders, the general feeling in Australia is that the phase down will go smoothly. This was one of the conclusions I brought back home after spending...
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China Refrigeration Expo 2018: a milestone for the HVAC&R industry

Once again this year, CAREL took part in “China Refrigeration Expo”, the most important event in the APAC region for the HVAC&R industry. This year’s Chinaref was held in Beijing, the capital of China, making the event more influential in political terms. “Coal to electric”,”natural refrigerants” and “energy efficiency” were the topics attracting most focus from industrial experts,...
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Kigali, energy efficiency and control schemes - 2nd part

The Kigali amendment to the Montreal Protocol was signed on 16 October 2016, with the intention of phasing out HFCs, being contributors to global warming. Interestingly, a request to “the Technology and Economic Assessment Panel 1 to review energy efficiency opportunities in the refrigeration and air-conditioning and heat-pump sectors related to a transition to climate-friendly...
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Kigali, energy efficiency and control schemes - 1st part

The Kigali amendment to the Montreal Protocol was signed on 16 October 2016, with the intention of phasing out HFCs, being contributors to global warming. Interestingly, a request to “the Technology and Economic Assessment Panel 1 to review energy efficiency opportunities in the refrigeration and air-conditioning and heat-pump sectors related to a transition to climate-friendly...
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