Support Geothermal Technology!
The Department of Energy (DOE) and the Environmental Protection Agency (EPA) have both endorsed geothermal heat pump systems as among the most energy efficient, environmentally clean, and cost effective systems for temperature control. Homeowners can expect to enjoy a comfortable, reliable, and economical system while also reducing energy use and pollution. Hopefully you will realize the great benefits it can have for you, your home, and the environment!
What Is A Geothermal Heat Pump?
Above the ground we can expect to experience dramatic temperature changes throughout the year. However, just a few feet below the Earth’s surface the temperature remains more constant at around 45 to 75 degrees Fahrenheit. A geothermal heat pump takes advantage of these more mild temperatures through a series of pipes and a heat exchanger.
In winter it collects the Earth’s natural heat through a series of pipes, called a loop, installed below the surface of the ground or submersed in a pond or lake. Fluid circulates through the loop and carries the heat to the house. There, an electrically driven compressor and a heat exchanger concentrate the Earth’s energy and release it inside the home at a higher temperature. Ductwork distributes the heat to different rooms.
In summer, the process is reversed. The underground loop draws excess heat from the house and allows it to be absorbed by the Earth. The system cools your home in the same way that a refrigerator keeps your food cool – by drawing heat from the interior, not by blowing in cold air.
As with any heat pump, geothermal and water-source heat pumps are able to heat, cool, and, if so equipped, supply the house with hot water. Some models of geothermal systems are available with two-speed compressors and variable fans for more comfort and energy savings. They are smaller than a traditional heating/cooling unit and can easily be retrofitted into any home.
Sep 16, 2009 (3 hours ago)
Betting the future of biofuel on algae An aerial view of the Amine plant and Solix Biofuels plants. The world’s dependence on finite, nonrenewable petroleum is at the heart of many of the environmental and energy challenges we face today. Additionally, transportation fuel use is a major contributor to global warming: more than 30 percent of the CO 2 emissions in the United States come from the burning of petroleum fuel for transportation. Biofuels can provide an alternative to petroleum-based fuel and also reduce total CO 2 emissions. By definition, a biofuel is a solid, liquid, or gaseous fuel derived from recently deceased biological material. For photosynthetic organisms, such as corn or soybeans, the plants use the energy of sunlight to convert available CO 2 into hydrocarbons, creating stored chemical energy. Fuel is produced and CO 2 is consumed, thereby addressing both the fuel supply and global warming challenges. This article talks about the practical commercial applications for making fuels from algae, a great place to start your reading about this fast-growing science and industry. A very positive look at algae fuels. Louisiana: Biodiesel plant will be built next..BioDieselNow – Renewable biodiesel fuel
Sep 16, 2009 (9 hours ago)
It’s one of the biggest auto shows in the world, and biodiesel-ready cars from one of the world’s biggest makers seem to be getting some good attention at the venue. Biodiesel Magazine reports that the 63rd International Auto Show underway Frankfurt, Germany has opened with several interesting diesel debuts from BMW… and all are compatible with biodiesel: Receiving a lot of attention is the Vision Efficient Dynamics concept car. This futuristic vehicle is a diesel hybrid plug-in, but costs a fortune to make. The powertrain provides acceleration to 100 kilometers per hour in 4.8 seconds, and its average fuel consumption is near 62.6 miles per gallon, BMW reported. “This is a very far look into the future,” [Dirk Arnold, BMW product communications manager] said. “Maybe this would be possible for production with some completely new diesel engine or other new technology, but for the next five years the advantage of combining diesel and electric systems is relatively low compared to the tremendous cost.” One of BMW’s brands, the popular sports hatchback Mini, is entering the diesel market with a new model being presented in Frankfurt. “The broad range of new models is being round..Domestic Fuel
Sep 16, 2009 (10 hours ago)
Researchers at University of Georgia will be turning forest and agricultural waste into biodiesel. The Atlanta Business Chronicle reports that the school has licensed technology to Sacramento, Calif.-based Tolero Energy LLC to turn the waste into the green fuel: The process turned waste biomass — dead trees, agricultural waste and lumber byproducts — into a liquid fuel to power conventional engines. The biomass is heated at carefully controlled high temperatures in the absence of oxygen. The vapors produced rapidly condense into a bio-oil that can be added to biodiesel or petroleum diesel. Other by-products are gas and bio-char, which can be used as a soil amendment. The ultra-low-sulfur biofuel does not require additional refinement or processing before blending with biodiesel and petroleum diesel, UGA said. Tolero CEO Chris Churchill said the company will focus on the transportation fuels market as it completes development of the UGARF bio-oil technology. He expects to make a product based on the technology available in the first half of 2010. Tolero will also be turning cellulosic biomass, such as agricultural waste and waste wood pallets, into transportation fuels,..Domestic Fuel
Sep 16, 2009 (13 hours ago)
The Renewable Fuels Association (RFA) and the Renewable Fuels Foundation (RFF) are partnering with teachers and the National FFA Organization to provide tens of thousands of high school students information about the opportunities available to them in the field of renewable fuels. “America’s energy future rests squarely in its high school classrooms today,” said Mike Jerke, chairman of the RFF and General Manager of Quad County Corn Processors in Galva, Iowa. “It is these future scientists, engineers and dreamers that will supply both the manpower as well as the brain power necessary to break our addiction to fossil fuels. We are proud to be partnering with the National FFA to make these students aware of the vast opportunities offered by a robust renewable fuels industry.” The curriculum was designed to provide FFA members with details about the nature of the renewable fuels industry today and focuses on the ethanol production process, the benefits of ethanol production, the interplay between renewable fuels and agriculture, and wide range of other issues. The lessons are available through the Team Ag Ed Learning Center , a website designed to provide agriculture teachers with ne..Domestic Fuel
Sep 15, 2009 (1 day ago)
The National Corn Growers Association’s recent “Land Use: Carbon Impacts of Corn Based Ethanol 2009” conference highlighted the confusion the issue of indirect land use change has engendered for farmers. Chuck Zimmerman of AgWired summed it up in a report from the conference: Do you understand things like indirect land use when it comes to regulations via departments like the EPA due to the RFS? Me either. And I’ve sat in on conferences and discussions and interviews on the subject for a while now. That’s because an issue like indirect land use involves predicting the future based on certain assumptions that may or may not be valid, especially if they’re based on out of date data and information.” Conference chairman Jamey Cline, NCGA Director Biofuels and Business Development, indicated to Zimmerman that these issues are extremely important to agribusiness and corn growers in particular because if the CARB regs hold up, by 2012 they will effectively shut off that market to ethanol. Additionally, one presenter said that due to the proposed climate change bill and RFS, approximately 27.1 million acres would be taken out of production across the Unites States. That would have a huge..