Energy & Green Tech
To battle the summer heat, office and residential buildings tend to crank up the air conditioning, sending energy bills soaring. Indeed, it's estimated that air conditioners use about 6 percent of all the electricity produced ...
Nov 08, 2018
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477
Engineering
Air conditioning and heating systems are not only great for keeping a home cool or warm, but they also help clean the air of harmful pollutants.
Sep 26, 2018
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38
Energy & Green Tech
When the blades of its 800-kilowatt wind turbine start turning, the small Greek island of Tilos will become the first in the Mediterranean to run exclusively on wind and solar power.
Aug 19, 2018
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761
Energy & Green Tech
The 1987 Montreal Protocol and the 1997 Kyoto Protocol called for countries around the world to phase out substances like CFCs (chlorofluorocarbons), HCFCs (hydrochlorofluorocarbons), and HFCs (hydrofluorocarbons) that deplete ...
Aug 14, 2018
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275
Energy & Green Tech
About 40 percent of all the energy consumed by buildings worldwide is used for space heating and cooling. With the warming climate as well as growing populations and rising standards of living—especially in hot, humid regions ...
Jul 12, 2018
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57
Robotics
A team of researchers at the U.S. Air Force Research Laboratory, Wright-Patterson Air Force Base, has developed a type of soft robot that can generate signals without using electricity. In their paper published in Proceedings ...
Jun 20, 2018 report
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175
Energy & Green Tech
Not familiar with residential geothermal heating? No surprise. Chris Martin in Bloomberg explained that "Residential geothermal heating is uncommon, in part because the expense and effort to dig the wells make them costly ...
Jun 01, 2018 weblog
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20
Energy & Green Tech
The worldwide demand for air conditioning is expected to triple over the next 30 years, making the pursuit of energy-efficient cooling systems a top priority, the International Energy Agency said Tuesday.
May 15, 2018
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358
Engineering
Stanford researchers have developed a reversible fabric that, without expending effort or energy, keeps skin a comfortable temperature whatever the weather.
Nov 13, 2017
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22
Energy & Green Tech
It looks like a regular roof, but the top of the Packard Electrical Engineering Building at Stanford University has been the setting of many milestones in the development of an innovative cooling technology that could someday ...
Sep 05, 2017
2
2238
Energy & Green Tech
A recent UBC study shows that snow cleared from winter roads can help reduce summer air-conditioning bills.
Oct 12, 2016
2
0
Energy & Green Tech
The ingenuity of four space engineers has created a zero-emission air-conditioning system that doesn't pollute our atmosphere when we turn it on.
Jun 07, 2016
2
97
Air conditioning refers to the cooling and dehumidification of indoor air for thermal comfort. In a broader sense, the term can refer to any form of cooling, heating, ventilation or disinfection that modifies the condition of air. An air conditioner (often referred to as AC or air con.) is an appliance, system, or mechanism designed to stabilise the air temperature and humidity within an area (used for cooling as well as heating depending on the air properties at a given time), typically using a refrigeration cycle but sometimes using evaporation, most commonly for comfort cooling in most buildings and motor-cars.
The concept of air conditioning is known to have been applied in Ancient Rome, where aqueduct water was circulated through the walls of certain houses to cool them. Similar techniques in medieval Persia involved the use of cisterns and wind towers to cool buildings during the hot season. Modern air conditioning emerged from advances in chemistry during the 19th century, and the first large-scale electrical air conditioning was invented and used in 1902 by Willis Haviland Carrier.
This text uses material from Wikipedia, licensed under CC BY-SA
