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Showing posts from May, 2021

### Comparison between Steam Power Plant and Gas Power Plant

Comparison between Steam Power Plant and Gas Power Plant In energy generation sector steam power plants are those which make use of a high pressure steam to rotate the turbine and then use that turbine to generate electrical energy through a generator attached to turbine. Whereas the Gas power plant are those which make use of a high pressure gas to rotate the turbine and then use that turbine to generate electrical energy through a generator attached to turbine. The working of the steam turbine power plant is governed and analysed by the Rankine cycle where initially heat energy is used to turn the water inside boiler in to high pressure steam and then that steam is used to rotated the blades of turbine whereas the working of the gas turbine power plant is governed and analysed by the Brayton cycle and directly used the air fuel mixture to burn and produce high pressure gasses which are then used to rotate blades of gas turbine. Steam turbine power plant governed by Rankine cycle st

### Methods of testing oil viscosity

1) Falling Sphere Viscometer Falling sphere viscometer is a simple instrument which used to measure the dynamics viscosity of the Newtonian fluid. Working principle of this falling sphere viscometer is very simple. It measure the time needed by a solid sphere to cover a certain vertical distance. This vertical free fall movement is inside the viscous fluid whose dynamic viscosity is needed to be measured. The apparatus simply consist of a cylindrical tube having starting and ending marks for vertical distance. Tube is filled with viscous fluid and stop watch is used to measure the time of sphere moving inside the tube. A simple thermometer and density-meter is used to measure the temperature and density of the fluid during before the experiment starts 2) Capillary Viscometer Capillary viscometer is the simplest and easiest instrument and method available to measure the viscosity of the all Newtonian fluids and some of the Non-Newtonian fluids. This apparatus simply consists of a single

### Thermodynamics Systems and The Laws

When a matter is separated from its surrounding by some means of walls then that matter is called a system and when that system is observed in terms of heat and mass transfer then that system became a thermodynamics system. So a thermodynamics system is one in which a matter is separated from its surrounding by means of wall called boundary and is observed in terms of heat and mass transferred between system and surrounding through boundaries at certain conditions. There three types of thermodynamics system; isolated system, close system and open system and when external forces like force and heat is applied on system it is called thermodynamics operations. These operations are controlled by the means of three thermodynamics laws. Thermodynamics operation involve the external forces, work done, heat energy and transfer of mass between system and surrounding through boundaries. When a thermodynamics operation is performed on a system then its properties like internal energy, enthalpy, e