This figure shows a schematic diagram depicting how "hot springs (geysers)" are produced through hot magma (molten mass), the fractured crystalline rocks, the permeable rocks and percolating ground water. Geothermal System-Hot Spring System Structure At a depth of 5000 m or so lies an impermeable magma. Above the magma are the 'impermeable rocks' which are overlain by localised pockets of [...]
The various thermoelectric effects in relation to thermodynamic conversion of heat to work are as follows: 1. Seebeck Effect 2. Peltier Effect 3. Thomson Effect 4.Joule Effect. 1. Seebeck Effect: If two dissimilar materials are joined to form a loop and two junctions maintained at different temperatures, an e.m.f. will be set up around the loop. The magnitude of current [...]
In this article we will discuss about the design of wind turbine rotor with the help of suitable diagrams. In a propeller type wind turbine, the following two forces operate on the blades: 1. Axial Thrust: It acts in the same direction as that of the flowing wind stream. 2. Circumferential Force: It acts in the direction of wheel rotation [...]