A technique for on-line detection of incipient faults in the windings of turbine - generator rotors has been developed based on the twin signal sensing method. To detect the developing shorts in any winding, two identical pulses are applied to both ends f the winding and are reflected back .Any abnormality in the winding results in the applied signals being reflected through nonsymmetrical circuits. The difference between the reflected signals are amplified and used as signature signal for further processing. This paper describes the developmen ....etc

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Micro turbines are becoming widespread for distributed power and combined heat and power applications. They are one of the most promising technologies for powering hybrid electric vehicles. They range from hand held units producing less than a kilowatt, to commercial sized systems that produce tens or hundreds of kilowatts.Part of their success is due to advances in electronics, which allows unattended operation and interfacing with the commercial power grid. Electronic power switching technology eliminates the need for the generator to be syn ....etc

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Definition

Have you been to the gas station this week? Considering that we live in a very mobile society, it's probably safe to assume that you have. While pumping gas, you've undoubtedly noticed how much the price of gas has soared in recent years. Gasoline which has been the main source of fuel for the history of cars, is becoming more and more expensive and impractical (especially from an environmental standpoint). These factors are leading car manufacturers to develop cars fueled by alternative energies. Two hybrid cars took to the road ....etc

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Bacteria powered batteries use the chemical energy generated by bacteria, and convert it into electrical energy using a relatively simple mechanism. Like most batteries, a bacteria powered battery has an anode (the negative end) and a cathode (the positive end). In addition to the anode and cathode, a bacteria powered battery also has a membrane capable of filtering electrons (anions) and protons (cations) produced during the chemical breakdown of substances by bacteria.
http://alternative-energy-news.info/images/pictures/bacteria-batter ....etc

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The quantum of energy in the universe is constant. Neither can man create energy nor can he destroy it. All that he can do is to discover new source of energy that the natural has provided and make it usable for his needs by new and more efficient ways of conversion.
A solar powered refrigerator using an intermittent ammonia-water absorption system as refrigeration in remote areas where electrical energy is not available is described in this paper.


In my present paper I have made an analysis of feasibility of utilization of solar energy i ....etc

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ABSTRACT
A new generation of small scale (less than 20 MWe) biomass fueled, power plants are
being developed based on a gas turbine (Brayton cycle) prime mover. These power plants
are expected to increase the efficiency and lower the cost of generating power from fuels
such as wood. The new power plants are also expected to economically utilize annual
plant growth materials (such as rice hulls, cotton gin trash, nut shells, and various straws,
grasses, and animal manures) that are not normally considered as fuel for power plants.
This p ....etc

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Air powered cars

Have you been to the gas station this week? Considering that we live in a very mobile society, it's probably safe to assume that you have. While pumping gas, you've undoubtedly noticed how much the price of gas has soared in recent years. Gasoline which has been the main source of fuel for the history of cars, is becoming more and more expensive and impractical (especially from an environmental standpoint). These factors are leading car manufacturers to develop cars fueled by alter ....etc

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The quantum of energy in the universe is constant. Neither can man create energy nor can he destroy it. All that he can do is to discover new source of energy that the natural has provided and make it usable for his needs by new and more efficient ways of conversion. A solar powered refrigerator using an intermittent ammonia-water absorption system as refrigeration in remote areas where electrical energy is not available is described in this paper. In my present paper I have made an analysis of feasibility of utilization of solar energy in the ....etc

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The focus of the research has been on producing tiny batteries for powering MEMS and which, in theory, could last thousands of years. While radioisotope batteries have previously been used in spacecraft, the new batteries are much smaller and utilize a liquid semiconductor as opposed to traditional solid state devices used in nuclear batteries. The battery's output is 16.2nW.The research has been undertaken by Prof Jae Kwon and J David Robertson from the University of Missouri. Robertson said: The hard part of using radioactive decay is th ....etc

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The gas turbine has been an enormously successful power plant for aircraft and marine propulsion, and electric power generation, due to its lightweight, smooth and reliable operation, low emissions, and varied applications. Nevertheless, it is not very efficient in converting fuel energy to useful work, due to fundamental thermodynamic limitations imposed by turbo machinery technology.

In recent years, there is renewed interest in the potential high efficiency of alternative thermodynamic cycles and unsteady combustion systems for propul ....etc

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