Important Terms for Thermodynamic Cycles

Important Terms for Thermodynamic Cycles Points : Important Terms for Thermodynamic Cycles, Mean Effective Pressure, Efficiency of a Cycle, Stroke Length, Compression Ratio, Full Cylinder Volume, Clearance Volume, Cylinder Bore, Stroke Volume Though there are many terms used in thermodynamic cycles yet the following are important from the subject point of view.
1. Mean Effective Pressure
2. Efficiency of a Cycle
3. Stroke Length
4. Compression Ratio
5. Full Cylinder Volume
6. Clearance Volume
7. Cylinder Bore
8. Stroke Volume 1. Mean Effective Pressure As a matter of fact, pressure in the cylinder keeps on changing with the position of the piston for all sorts of calculations. We need the means effective pressure, which may be defined as the constant pressure acting on the piston during the working stroke. It will be able to d the same amount of work, as done by the actual varying. Pressure produced during the cycles. It is ratio of work done to the displacement volume. Mathematically, mean effective pressure. 2. Efficiency of a Cycle It may be defined as the ratio of work done to the heat supplied during a cycle. Mathematically, efficiency of it cycle. 3. Stroke Length The piston move in the cylinder due to rotation of the crank. Its extreme positions are known a Top Dead Center (TDC). The distance between the two extreme positions known as stroke length or stroke. 4. Compression Ratio The ratio of full cylinder volume to the clearance volume is known as compression ratio. It is an important term in an engine. 5. Full Cylinder Volume The volume occupied by the working fluid when the piston is at the bottom dead centers is known as full cylinder volume. Mathematically, full cylinder volume is equal to the sum of clearance volume and swept volume. 6. Clearance Volume The volume occupied by the working fluid, when piston reaches the top dead centre1 is known as clearance volume. It is generally denoted by (V_c). 7. Cylinder Bore The diameter of the cylinders, in which the piston moves, is known as cylinder bore. 8. Stroke Volume The volume swept by the piston, when it moves between the two extreme positions is known as swept volume, or stroke volume.