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Logarithmic Mean temperature Difference is used to measure the Heat transfer rate in double pipe heat exchanger. The rate of heat transfer is got from the formula - Q = U.A.LMTD . U= Heat Transfer Co-efficient A= Heat Transfer Surface Area LMTD= Mean Temperature Difference LMTD is the logarithmic temperature difference between the hot and cold fluids passing through the each ends of heat

Automobile engineering is an indispensable part of Mechanical Engineering. Many mechanical engineering students study this discipline only get themselves acquainted with this subject. Most of the students choose Mechanical Engineering to get themselves familiar with the mechanism of automobile. Automobile Engineering Books are must for those students. Proper guidance from teachers is of course

Biomass - Important facts Biomass advantages and disadvantages are associated with some very important facts. Day by day the conventional energy sources like fossil fuels is reducing. Finding sources for conventional energy is a very complicated and lengthy process. But with the increasing population, the need for new energy sources is also rapidly increasing in developing countries and in

Tidal Energy - How Tidal energy works- An introduction All flowing water carry with them kinetic energy. When such water encounters a turbine, part of the momentum of the flowing water is transferred ton to the turbine, causing it to rotate. The rotation of the turbine cam then be used to generate electricity. So for electricity generation purpose we must know about tidal energy advantages and

Wave Energy - A steadier Renewable energy than Wind Waves are increasingly generated in oceans and large lakes; at times the waves are strong enough to overturn large ships or toss them ashore. Gravitational attraction of the sun and the moon as well as the force of wind are mainly responsible for the wave being created. Oceans are efficient collectors of wind energy; indeed waves are a

The energy from the sun reaching the earth per day ranges from about 600 Btu (British Thermal Unit) / square feet for Northern Europe to about 2000 Btu/square feet for arid regions near the equator. More energy from sun strikes the earth in one hour than all energy consumed on the planet in a year! A summer day’s sun at noon provides a square, meter of land with a power input almost a kilowatt.

A brief story of global warming- global warming skepticism Of all the forecasts of global environmental disasters made from time to time, the one which aroused the most widespread skepticism was about global warming. Even as several well-meaning people took it seriously- some rather too seriously- a whole lot of other scientists and policy-makers dismissed it as over-exaggeration. During