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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

Concentrators with one axis tracking are used to achieve moderate concentration. A few of them have been described below. Please read: Classification, construction and working principle of two-axes tracking concentrator Classification and Working Principle of non tracking solar concentrators For knowing about the other concentrators follow the link: Classification of Solar

This post provides the description and analysis of different types of solar air heaters used in space heating and drying purposes. The Solar air heaters have the following advantages over other solar heat collectors. Solar Air Heater Advantages The need to transfer heat from working fluids to another fluid is eliminated as air is being used directly as the working substance. The system

Variables needed for getting dimensionless groups In most of the fluid phenomena the following variables may be important - Length. L - Acceleration due to gravity, g - Mass density, ρ

What is Condenser ? The primary purpose of the condenser is to condense the exhaust steam from the turbine and thus recover the high-quality feedwater for reuse in the cycle. In order for a steam power station to operate an efficient-closed cycle, the condensing plant, cooling water (CW) system, and associated pumps must extract the maximum quantity of heat from the exhaust steam of the

The burnout phenomenon in boiling can be expressed like this Before that please read The boiling regimes and boilingcurve In the Nucleate boiling region we saw the critical heat flux or the maximum heat flux. And we want more heat transfer and thus we have to heat the liquid further. But due to the some vapor covering the liquid cannot receive that heat as result the heater surface has

Boiling is a great means of heath transfer. Though it is a very much familiar form of heat transfer, its mechanism is still very confusing. The most important inventions in the field of boiling was done by S. Nukiama in 1934. Different boiling regimes Four boiling regimes are seen in the boiling curve. These are Natural convection regime Nucleate regime Transition regime and Film