Cooling is warming the planet, but market failures are freezing the AC industry’s innovation

September 26, 2018 by  
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And four reasons why the business of air conditioning is slow to make strides in both cost or efficiency.

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Cooling is warming the planet, but market failures are freezing the AC industry’s innovation

September heat waves are causing early dismissals in schools

September 7, 2018 by  
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Snow days are one of the best perks of winter for students, but now, schools are closing for another variation of inclement weather. School districts around the country are releasing students because of excessive heat, an increasing trend in the face of climate change . Will these so-called “heat days” become the new norm? Schools in the eastern U.S. have been giving out more heat days than ever as record temperatures continue to hit New York, Connecticut, New Jersey and even parts of the Midwest. The cancellations are occurring more frequently in places that do not have adequate air conditioning, especially in relation to after-school programs. This past week, for example, schools on the East Coast shut down as temperatures climbed higher than 90 degrees. A few districts in New York also cancelled sporting activities. Related: One in 11 US public schools are plagued by toxic air Meanwhile, schools in New York City have remained open following a city investment in new air conditioning systems worth nearly $30 million to ensure schools were adequately cooled. The city plans on having every classroom air conditioned over the next four years, meaning no heat days for students and a costly impact on the environment. But for schools that don’t have a budget for air conditioning, heat days might become more frequent. In fact, union organizations in New York are advocating for laws that would require districts to close schools if the temperature is hotter than 88 degrees. In a few schools across the East Coast, teachers have reported temperature readings above 100 degrees in their classrooms, which clearly is not a safe environment for anyone. As global warming continues to affect the climate, record high temperatures could become common in months that normally are not associated with such temperatures. There’s no telling how many schools will adopt heat days as policy, but it is possible that these school dismissals become just as common as traditional snow days. Via New York Times Image via Nicola Tolin

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September heat waves are causing early dismissals in schools

Water-based AC cools the air without using harmful chemicals

January 19, 2018 by  
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Our air conditioners still draw on principles that are around 100-years-old, sucking up power in the process. Researchers from the National University of Singapore (NUS) are working on an alternative: water -based air conditioners. Their system doesn’t need energy -intensive compressors or harmful chemical refrigerants – and can cool air all the way down to 18 degrees Celsius, or 64.4 degrees Fahrenheit. Over 40 percent of the energy consumption of a building in the tropics goes to air conditioning, according to NUS associate professor Ernest Chua . He led a team to develop a new air conditioning system offering several advantages over conventional machines commonly found in buildings today. Related: This amazing Bangladeshi air cooler is made from plastic bottles and uses no electricity Water serves as the coolant in their air conditioner, and an innovative membrane technology sucks moisture out of humid air. The system uses up around 40 percent less electricity than compressor-based air conditioners, which NUS said translates to an over 40 percent reduction in carbon emissions . And the system doesn’t release hot air, instead discharging a less-humid cold air stream. For every liter of water used, as much as 15 liters of drinking water can be harvested, according to NUS – and the water the system harvests from the air is five times purer than Singapore tap water. Chua said in a statement, “Our cooling technology can be easily tailored for all types of weather conditions, from humid climate in the tropics to arid climate in the deserts. While it can be used for indoor living and commercial spaces, it can also be easily scaled up to provide air-conditioning for clusters of buildings in an energy-efficient manner.” NUS said it’s cost-effective to produce the system. Right now the team is further developing the design to boost user-friendliness, and aim to incorporate smart features like real-time tracking of energy efficiency or “pre-programmed thermal settings based on human occupancy.” They’re hoping to collaborate with industry partners on commercialization. Via National University of Singapore and Futurity Images via National University of Singapore and NUSLife on YouTube

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Water-based AC cools the air without using harmful chemicals

How Cool Is Your AC Unit?

September 7, 2015 by  
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As temperatures soar higher, so does your air conditioning bill. Does it have to, though? The founders of Mistbox have developed a revolutionary technology that is cost effective, easy to install, and can make your air conditioning unit up to 40%…

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How Cool Is Your AC Unit?

5 Solutions To Dramatically Reduce Your AC Costs This Summer

July 8, 2015 by  
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A recent publication by the U.S. Energy Information Administration (EIA) noted that in 1993 only 68% of homes had air conditioning.  Today there are 100 million homes with air conditioning systems, which equates to 87% of households in America….

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5 Solutions To Dramatically Reduce Your AC Costs This Summer

Schools Institute ‘Heat Days’ to Protect Kids from Soaring Classroom Temperatures

September 5, 2013 by  
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Image via Shutterstock . Snow days force school closures due to heaps of snow and ice – and now rising temperatures across the country are forcing some schools to institute “heat days.” As the AP reported this week, heat waves in the Midwest prompted Chicago teachers to greet their students with bottles of water, fans, and wet towels. The old brick classrooms where the students learn are generally unequipped with air conditioning , and the district has little money to retrofit the sweltering old buildings. Read the rest of Schools Institute ‘Heat Days’ to Protect Kids from Soaring Classroom Temperatures Permalink | Add to del.icio.us | digg Post tags: air conditioning , associated press , chicago , green design , heat days , heat wave , labor days , long holidays , midwest , Rahm Emanuel , renewable energy , retrofit , school district , snow days , standardized testing , students        

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Schools Institute ‘Heat Days’ to Protect Kids from Soaring Classroom Temperatures

6 Hot Ways to Stay Cool Today

July 20, 2013 by  
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Temperatures are soaring across the northeastern US at present , with several areas experiencing their longest heatwaves in over a decade . If you’re looking to keep cool through this sweltering summer, but you don’t want to blast your air conditioning 24/7, check out our six tips to beat the heat today. From mastering the art of popsicle-making to testing out your swimming skills, there are plenty of ways to stay cool and healthy. READ MORE > Permalink | Add to del.icio.us | digg Post tags: “energy efficiency” , air conditioning , east coast heat , heatwave , high temperatures , picnics , popsicle making , stay cool , staying cool , swimming        

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6 Hot Ways to Stay Cool Today

6 Hot Ways to Stay Cool Today

July 20, 2013 by  
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Temperatures are soaring across the northeastern US at present , with several areas experiencing their longest heatwaves in over a decade . If you’re looking to keep cool through this sweltering summer, but you don’t want to blast your air conditioning 24/7, check out our six tips to beat the heat today. From mastering the art of popsicle-making to testing out your swimming skills, there are plenty of ways to stay cool and healthy. READ MORE > Permalink | Add to del.icio.us | digg Post tags: “energy efficiency” , air conditioning , east coast heat , heatwave , high temperatures , picnics , popsicle making , stay cool , staying cool , swimming        

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6 Hot Ways to Stay Cool Today

More Architectural Tricks To Keep Cool Without Air Conditioning

August 16, 2011 by  
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Cupola House image credit Wikipedia We have covered many of the old ways of keeping cool, but Matt Grocoff points out another at the Old House Web: Cupolas. He writes: Cupolas are as functional as they are decorative… Read the full story on TreeHugger

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More Architectural Tricks To Keep Cool Without Air Conditioning

Scientists contrive heat regulating material to enhance energy efficiency of buildings

August 4, 2011 by  
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DATTATREYA MANDAL: Building Researchers at The University of Nottingham Ningbo China develop heat-regulating building material. With the progression of architecture and constructional processes, we tend to overlook the importance of the primary constituents that drive these expansive fields. Yes, we are talking about building materials, and how their degree of energy efficiency can improve upon the effectiveness of an overall building. Scientists at the University of Nottingham Ningbo China (UNNC), have ingeniously conceived a material somewhere along these lines, which can be best explained as a rudimentary component of air conditioning. Dubbed as the non-deformed energy storage phase change material (PCM), this component can efficaciously regulate heat, by virtue of its large energy storage capacity. For example, if the temperature of a room is set at 26 degrees centigrade, the product can absorb the excess heat produced above this temperature. The initiation of micro-climate response is somewhat analogous to an air conditioning system, albeit without humidity control and air flow. Coming to the form, the material itself is shaped like a large sized coin. This makes the conception highly flexible and cheap, to be used in various types of conditions. Moreover, according to the researchers, the main heat regulating component can be sprayed as an inconspicuous microscopic film on a multitude of surfaces. The conscientious project in itself is in a development stage, with scientists looking forth to commercialize the building material. Preliminary testing already shows that the conception can reduce 35 percent energy requirements of an average building, and also can be utilized in conjunction with LEDs and solar panels to accentuate upon the level of effectiveness. On the ‘greener’ side, many grants (from governmental institutions) have been made available to the scientists. And we expect this to accelerate the novel process of contriving a low cost, sustainable alternative to heat regulation, which has the potentiality to be applicable in tropical and sub-tropical developing countries. Via: ScienceDaily

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Scientists contrive heat regulating material to enhance energy efficiency of buildings

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