Machine Parts

Now a days a combination of different type of simulation tools has been used. For operational aspects, a combination of physical models, including energy and mass balances, and statistical models, like partial least square (PLS) models, provided with the gas composition under different operating conditions. Real process aspects like kinetics and the difference in product gas quality as a function of temperature, load and relative oxidation during the gasification was included. Direct system design was addressed using equilibrium calculations with programs like ASPEN plus. In principle, different conditions can be calculated by changing different variables, although no information of the direct absolute gas composition can be obtained. Experimental data from operation of pilot plants and real processes using different fuels and operation conditions. Comparison or Difference between Steam Power Plant and Hydro-electric Power Plant   Powe...

  Flow Nets A grid obtained by drawing a series of streamlines and equipotential lines is known as a flow net. The flow net provide a simple graphical technique for studying two dimentional irrotational flows especially in the cases where mathematically relations for steam function and velocity function are either not available   to are are rather difficult and cumbersome to solve.   Use of flow nets: 1.       Determaination of   the design of the outlets for their streamlining. 2.       Determaination of quantity of seepage and upward lift pressure bellow the hydraulic structure. 3.       Determaination of the streamlines and equipotential lines. 4.       Determaination of the pressure and velocity distribution, for given boundaries of flow. Limitations of flow nets: 1.       The flow net analysis can not be a...

Centrifugal Pump    A centrifugal pump is a contrivance which provides energy to a fluid in a fluid system. It assist to increase the pressure energy or kinetic energy or both of the fluid by converting the mechanical energy.   What is basic difference   between   a Turbine and The Pump?   The basic difference between a turbine and   the pump, from hydrodynamic point of views. Is that in the former flow takes place from the high pressure side to low pressure side. Whereas in pump flow take place from the low pressure towards the high pressure. Thus in a   turbine there is accelerated flow,   while the pump the flow is decelerated.   Why transformer is rated in KVA?                                                        ...