Important research over the past few decades has illustrated that indoor air pollution and indoor smoke from solid fuel poses important health risks in developing countries. Unfortunately, affordable and effective interventions for reducing these risks are limited. This may be because in designing new interventions, the complexities of household energy use and exposure have been often overlooked, and there is a lack of infrastructure to support technological innovations, marketing and dissemination, and maintenance. Even less is known about combinations of technologies that may be used in a household and the factors that motivate the households to adopt them. (more…)
Exposure to indoor air pollution from the combustion of solid fuels has been implicated, with varying degrees of evidence, as a ...
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 ...
Indoor air quality (IAQ) research deals with the presence, levels, health effects, and control of physical, chemical, and biologica ...
In terms of aggregate health effects, household solid fuel use is currently the most important source of indoor air pollution i ...
Reducing exposure to indoor air pollution from household energy use can be achieved through interventions in of the following areas:
* Emissions source and energy technology (fuel– stove combination).
* Housing design and ventilation.
* Behavior and time–activity budget. (more…)
Important research over the past few decades has illustrated that indoor air pollution and indoor smoke from solid fuel poses i ...
Indoor air quality (IAQ) research deals with the presence, levels, health effects, and control of physical, chemical, and biologica ...
Exposure to air pollutants and air pollution problem are very high in indoor environments in developing countries. Smith has es ...
Lack of access to cleaner energy and the negative outwardnesses associated with energy consumption tend to cycle of poverty for ...
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 ...
Up to around 1980, hydropower research and development (R&D) efforts focused mainly on improving turbine efficiency, reducing cavitations, and increasing generation. Whereas older units had efficiency ratings as low as 60%, the new units have efficiency ratings of approximately 90%. The U.S. Department of Energy (DOE) also looked at new technologies for developing low-head, ultra low-head, and small hydropower projects. These technologies included the following: (more…)
Hydropower, also known as hydroelectric power, is the use of water to produce power. Harnessing water to perform work has been ...
The World Commission on Dams (WCD) was formed in 1998 by a joint initiative of the World Conservation Union (IUCN) and the Worl ...
The winners in hydropower and other large dam projects are those who gain electricity, domestic water supplies, sanitation, dro ...
The water levels of most of the world’s rivers fluctuate with seasonal rains, melting snows, or droughts, and in the arid zones ...
Hydraulic turbines have two main classifications: impulse and reaction. The impulse turbine generally uses the velocity of the wate ...
Hydraulic turbines have two main classifications: impulse and reaction. The impulse turbine generally uses the velocity of the water to move the runner and discharges to atmospheric pressure. The water stream hits each bucket on the runner. There is no suction on the down side of the turbine, and the water flows out the bottom of the turbine housing after hitting the runner. An impulse turbine is generally suitable for high-head, low-flow applications. (more…)
Up to around 1980, hydropower research and development (R&D) efforts focused mainly on improving turbine efficiency, reducing c ...
Wind energy alongside solar energy is one form of renewable energy and its supply is abundant in earth. Most people distinguish ...
Renewable energy generators are devices that convert energy from its original form in the renewable energy source into electric ...
The total installed geothermal power generating capacity in the world is approximately 9000 MWe from 21 countries, with the United ...
In today's day and age there are millions of people who generate their own green energy at home by learning how to build windmills ...
Hydropower, also known as hydroelectric power, is the use of water to produce power. Harnessing water to perform work has been going on for thousands of years. The Greeks used waterwheels for grinding wheat into flour more than 2000 years ago. Besides grinding flour, the power of the water was used to saw wood and to power textile mills and manufacturing plants. This article looks briefly at how hydropower plant began, why it is considered renewable energy technology, the parts of a hydropower plant, types of turbines and when they are used, and what research and development is occurring. (more…)
Up to around 1980, hydropower research and development (R&D) efforts focused mainly on improving turbine efficiency, reducing c ...
The water levels of most of the world’s rivers fluctuate with seasonal rains, melting snows, or droughts, and in the arid zones ...
The World Commission on Dams (WCD) was formed in 1998 by a joint initiative of the World Conservation Union (IUCN) and the Worl ...
The winners in hydropower and other large dam projects are those who gain electricity, domestic water supplies, sanitation, dro ...
The demand for electric energy by a community varies with the time of day and with the time of year. An electric power utility ...
The winners in hydropower and other large dam projects are those who gain electricity, domestic water supplies, sanitation, drought relief, sustainable irrigation, flood control, improved water transport, industrial and employment opportunities, food security, better roads, telecommunications, and other benefits. As well, other economic multipliers may arise and whole regions may flourish. This is an impressive list and is the very basis of modernization and liberation from the drudgery of traditional low technology rural life. Electricity, radio, and domestic water supplies completely transform the lives of those who gain these goods, and better health and education are the most obvious outcomes. (more…)
The water levels of most of the world’s rivers fluctuate with seasonal rains, melting snows, or droughts, and in the arid zones ...
Up to around 1980, hydropower research and development (R&D) efforts focused mainly on improving turbine efficiency, reducing c ...
The World Commission on Dams (WCD) was formed in 1998 by a joint initiative of the World Conservation Union (IUCN) and the Worl ...
Hydropower, also known as hydroelectric power, is the use of water to produce power. Harnessing water to perform work has been ...
The first step in categorizing potential benefits and costs is determining the relevant scope of the analysis. We have concluded th ...
The World Commission on Dams (WCD) was formed in 1998 by a joint initiative of the World Conservation Union (IUCN) and the World Bank (WB) after a historic meeting of leading dam proponents and opponents in Switzerland, with proceedings reported by Dorcey and others. The WCD was asked to discover the truth about the hydropower energy facts, hydropower energy pros and cons, cost, effect, and benefit of large dams and it functioned independently for 2 years at a cost of $10 million. The money was well spent, and at the end of that period the WCD produced a comprehensive report and numerous support documents, and then dissolved itself. The report and support documents remain on the Internet available to all, and they have changed forever the debate about dams. (more…)
The water levels of most of the world’s rivers fluctuate with seasonal rains, melting snows, or droughts, and in the arid zones ...
Hydropower, also known as hydroelectric power, is the use of water to produce power. Harnessing water to perform work has been ...
The winners in hydropower and other large dam projects are those who gain electricity, domestic water supplies, sanitation, dro ...
Up to around 1980, hydropower research and development (R&D) efforts focused mainly on improving turbine efficiency, reducing c ...
Some of alternative fuel sources are by no means new. For centuries people have harnessed the power of running water for a vari ...
Transportation is another sector that has increased its relative share of primary energy use. This sector has serious concerns as it is a significant source of CO2 emissions and other airborne pollutants, and it is almost totally based on oil as its energy source. An important aspect of future changes in transportation depends on what happens to the available oil resources, production and prices. At present, 95% of all energy for transportation comes from oil. (more…)
Under both former President Bush and new President Obama, the U.S. government has vowed to reduce reliance on imported oil. The ...
Global energy consumption in the last half century has increased very rapidly and is expected to continue to grow over the next ...
From prehistory until the Industrial Revolution, most energy sources used by humans were localized (i.e., available within 5–10 mil ...
Do we have the resources? Rudolf Diesel developed the diesel engine which ran on biodiesel vegetable oil in the late 1800s. At the ...
One study that does address the peak-oil scenario directly is a 2005 report conducted for the National Energy Technology Labora ...
Global energy consumption in the last half century has increased very rapidly and is expected to continue to grow over the next 50 years. However, we expect to see significant differences between the last 50 years and the next. The past increase was stimulated by relatively “cheap” fossil fuels and increased rates of industrialization in North America, Europe, and Japan; yet while energy consumption in these countries continues to increase, additional factors are making the picture for the next 50 years more complex. These additional complicating factors include the very rapid increase fuel economy in energy use in China and India (countries representing about a third of the world’s population); the expected depletion of oil resources in the not-too-distant future; and the effect of human activities on global climate change. (more…)
The relationship of gross national product per capita to energy consumption per capita for most countries of the world correlat ...
The long-term prospects for the U.K. economy are inevitably uncertain, and the most recent Department of Energy long-term proje ...
Transportation is another sector that has increased its relative share of primary energy use. This sector has serious concerns ...
The development of the ‘‘new’’ wind and solar technologies is of great importance for the future contribution of RESs to energy sup ...
To determine the effects of past climate trends on global energy consumption, the econometric equations providing the degree day el ...
Following the recent completion of three nuclear power plants, there is now some 9.6 GW of nuclear capacity in the United Kingdom. The nuclear share of electrical output, which has stood at around 13% for many years, should rise to around 20% when this capacity is in full operation. A further two reactors are currently under construction which will increase the British nuclear capacity to more than 12 GW by the late 1980s, which could bring the nuclear share of electrical output to around 25%. (more…)
Geographers researching the development of nuclear power have shifted emphasis from commercialization, cost, risk, public acceptanc ...
The long-term prospects for the U.K. economy are inevitably uncertain, and the most recent Department of Energy long-term proje ...
Nuclear fission and fusion Research and Development continues to account for nearly half of the total spending by IEA countries, al ...
Sir Arthur Eddington’s general address on subatomic energy at the 1930 World Power Conference in Berlin stirred the imagination of ...
For years it was out of desperation that observers have advised and viewed of American energy policy and geopolitical risks regardi ...