Machine Parts

  On the basis of characteristics features, the centrifugal pumps are classified as follows 1.       Types of Casting a.        Turbine pump or diffusion pump b.       Volute pumps   2.       Liquid Handled a.        Open impeller pump b.       Semi open impeller pump or Non clog pump c.        Closed impeller pump   3.       Number of entrances to the impeller a.        Double entry or double section pump: Watre can be admitted both side of the impeller, axial thrust is naturalized. b.       Single entry or single section pump: Water can be admitted only one site of the impeller     4.       Working Head: a.        High centrifugal pump b.       Medium lift centrifugal pump c.        Low lift centrifugal pump     5.       Number of impeller per shaft: a.        Multi-stage centrifugal pump:   It has two or more impellers and pressure is built in steps. It is genrally used in high working heads. And number of stage depen

  On the Basis of Transfer of mechanical energy the pumps can be broadly classify as follows: a.       Rotodynamic pumps: 1.       Radial Flow Pumps 2.       Axial Flow pumps 3.       Mixed Flow pumps b.       Positive displacement pumps: In rotodynamic pumps increase in energy level is due to combination of centrifugal energy, pressure energy and kinetic energy. o. The energy transfer in a radial flow pump, occurs mainly when the flow is in it’s radial path. o . In a axial flow pump, the energy transfer occurs when the flow is in it’s axial direction. o . The energy transfer in a mixed   flow pump takes place when the flow compromises radial as well as axial components. The radial flow types pump are commonly called centrifugal pump.   Mian parts of a centrifugal pump: a.        Delivery Pipe b.       Casing c.        Impeller d.       Suction Pipe   What is basic difference between a Turbine and The Pump?         

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?                                                                             How and Why an increase in secondary or load current causes an increase in primary current?                                                What is the difference between dynamo breaking a