Indoor air quality (IAQ) research deals with the presence, levels, health effects, and control of physical, chemical, and biological factors in indoor environments, including homes, workplaces, and vehicles. IAQ research in industrialized countries has examined hundreds of specific factors (e.g., temperature, various chemicals, and mold), sources of pollution environment (e.g., environmental tobacco smoke, occupational factors, consumer cleaning products, and moisture), and control technologies (e.g., ventilation). (more…)
Important research over the past few decades has illustrated that indoor air pollution and indoor smoke from solid fuel poses i ...
In terms of aggregate health effects, household solid fuel use is currently the most important source of indoor air pollution i ...
Exposure to air pollutants and air pollution problem are very high in indoor environments in developing countries. Smith has es ...
Reducing exposure to indoor air pollution from household energy use can be achieved through interventions in of the following a ...
Exposure to indoor air pollution from the combustion of solid fuels has been implicated, with varying degrees of evidence, as a ...
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From the turn of the century to 1911, more than a dozen inventors filed patents that improved on the Climax. However, none changed the fact that the heating unit and the storage unit were one and the same and both laid exposed to the weather and the cold night air. Hence, water heated by the sun the night before never stayed hot enough to do the wash the next morning or to heat the bath. In 1909, William J. Bailey patented a solar water heater that revolutionized the business. (more…)
Solar water heating for swimming pool rank as the most successful but least heralded commercial solar application. The use of solar ...
Active solar hot water systems water are usable with air, liquid, vapor or liquid collector fluid or gas to liquid process. Hot ...
Several passive heating systems, if provided with proper ventilation, can ensure to provide cooling. Passive heating and cooling fo ...
The average homeowner can use these home energy saving tips and conservation ideas to improve the overall energy efficiency of thei ...
Solar distillation is the process in which solar heat is used to purify water from an impure water source by evaporation and conden ...
The largest use of coal today is in the generation of electric power by electric utilities. According to the U.S. Energy Information Administration, about 65% of coal mined in the world is used for power generation. The next largest use of coal is in the production of coke for the iron and steel industries. Coal is still used for industrial heating and even commercial heating and residential heating in certain countries. (more…)
Power consumption from electricity is an essential element of the U.S. economy since the beginning of the century. Coal power plant ...
Natural gas and oil are common source energy used to give electricity. How efficient is coal if we compare to these other source of ...
The wind has covered every Sunday morning more than 50 percent of electricity & energy demand. It has also achieved the record high ...
Coal use today is no longer evocative of dirty power plants with polluting black smoke billowing from their smokestacks. Many o ...
Coal is still used to a small extent for home heating and cooking. In the homes of more affluent nations, coal is used for recreati ...
The spark-ignition and compression-ignition engine and internal combustion engines technologies that are currently employed in motor vehicles were developed more than 100 years ago. These conventional vehicle technologies are fueled by petroleum-derived gasoline and diesel fuels (the socalled conventional fuels). Over the past 100 years, the conventional technologies have been dramatically improved, reducing cost and increasing performance. (more…)
ISO document 14040 identifies four areas for using life cycle analysis (LCA) results: (1) identifying opportunities to improve ...
The fuel cycle for a given transportation fuel includes the following processes: energy feedstock (or primary energy) product ...
There are different types of vehicle propulsion systems and the transportation fuels that have been studied for their potential ...
Because different studies have different system boundaries and parametric assumptions, the studies described in Section 7 resulted ...
For processes that produce multiple products, energy and emission burdens have to be allocated to individual products. ISO 14040 ad ...
The combination of well-to-pump results and the energy use and emissions associated with vehicle operation (also called the pump-to-wheels stage) results in full well-to-wheels energy and emission results for vehicle/fuel systems. The energy efficiencies of 19 fuel pathways were presented in the preceding section. The well-to-wheels energy use and emissions results for 23 representative vehicle fuel systems, combined with some of the vehicle technology options are now considered. (more…)
It shows Well-to-Wheels Greenhouse Gas emissions of the 23 vehicle/fuel systems. For each system, the bottom bar represents CO2 ...
The energy efficiencies of various fuel production pathways from well to pump. The efficiencies shown are defined as the energy ...
There are different types of vehicle propulsion systems and the transportation fuels that have been studied for their potential ...
Because different studies have different system boundaries and parametric assumptions, the studies described in Section 7 resulted ...
The spark-ignition and compression-ignition engine and internal combustion engines technologies that are currently employed in ...
The most widespread and practical process for capture solar radiation as organic fuels is the growth of virgin biomass. Extremely large quantities of carbon are fixed each year in the form of terrestrial and aquatic biomass. (more…)
Another large source of renewable carbon supplies is waste biomass. It consists of a wide range of materials and includes munic ...
Another large source of renewable carbon supplies is waste biomass. It consists of a wide range of materials and includes munic ...
The future development of energy crops, to the level at which they would replace residues as the major bioenergy fuel source, will ...
The hydrogen can come from various sources including fossil fuels, wind, solar, biomass, nuclear, solar thermo-chemical reactio ...
The accumulation of carbon within a forest growth cycle can be considered in four stages. The initial establishment stage involves ...
Some forms of alternative energy sources are really new; while most of the energy forms are really come form in development and scientists have been investigated for several hundred years. One of the energy forms is biomass and bioenergy. Bioenergy refers to the burning of organic materials that would otherwise be simply discarded or not being considered at all. (more…)
Some of alternative fuel sources are by no means new. For centuries people have harnessed the power of running water for a vari ...
With ethanol’s future uncertain, many commentators see the transportation debate evolving into a war between two other technologies ...
Most production systems try to become first full-scale production begins as small toys and devices of concept. The Horizon hydr ...
Most alternative fuel vehicles on the road today were originally designed for gasoline, but converted for use with an alternative f ...
The hydrogen can come from various sources including fossil fuels, wind, solar, biomass, nuclear, solar thermo-chemical reactio ...
In 2006, total world wind generating electricity capacity was around 72,000 MW, producing some 160 terawatt-hours (TWh) per year of electricity. As of the end of 2006, the top wind producers were Germany, with 20,622 MW; Spain, with 11,615 MW; and the United States, with 11,575 MW.
Even so, wind accounts for only about 1 percent of the world’s total energy use. (more…)
Designers in China have launched the first wind turbine levitating in the world of permanent magnetic levitation (Maglev) in the Wi ...
In 2001, there were 14,000 small wind turbines for home/domestic use in the United States. The market potential for national an ...
Germany is considered a world leader in wind energy deployment, with electricity production from wind having gone up more than eigh ...
The wind has covered every Sunday morning more than 50 percent of electricity & energy demand. It has also achieved the record high ...
The development of the ‘‘new’’ wind and solar technologies is of great importance for the future contribution of RESs to energy sup ...
Wind energy comes from the mismatched heating system of the planet that runs all day and night, heated and cooled by the sun. They are also come as effect of the different between land and sea heat temperature, and natural barriers such as mountains. (more…)
Wind is a natural and inexhaustible source of energy, wind does not have to be imported or mined from deep down the earth. Wind ...
Power consumption from electricity is an essential element of the U.S. economy since the beginning of the century. Coal power plant ...
Magnetic power generator acted as a generator of free power because it generate electricity to power your home at free of cost to b ...
Renewable energy generators are devices that convert energy from its original form in the renewable energy source into electric ...
Would it not be great to be able to produce your own electricity supply at home? The idea of being independently powered up without ...
In today’s tough economic times and with the increasing prices of gas and oil, finding alternative sources of energy should be our top priority. These alternative energy solutions are not only cheaper to install and maintain but also can help save our dying environment.
There are numerous sources of affordable and environmentally-friendly fuels available. You can opt for biofuels, hydroelectric power system, wind energy, or solar power system installed right at your very own home. Among these sources of energy, building solar power system is easier and the most viable one to achieve. (more…)
So you're finally tired of those exorbitant electricity bills, or, you're catching onto a "greener" way of life. Either way, solar ...
Nowadays, solar power have become more affordable. That makes it a viable alternative energy option for homeowners who would li ...
Solar energy is one the most popular renewable energy sources these days. Solar panel systems don't even require much maintenan ...
As the cost of electricity rises and rises many of you will be wondering about solar panels installation. So was I. So I looked int ...
Don't pay for your energy anymore use solar panels and a residential wid generator and have the electric company paying you. You pl ...