Reheat Regenerative Rankine Cycle T S Diagram

In an ideal condition the water leaves the heater as a saturated liquid at the heater pressure. T s diagram of an ideal regenerative rankine cycle with one open feedwater heater an open feedwater heater is basically a mixing chamber where the steam extracted from the turbine mixes with the water exiting the pump.

File Regenerative Rankine Cycle T S Chart Svg Wikimedia Commons

It was also used to study the performance of reciprocating steam engines.

Reheat regenerative rankine cycle t s diagram. The rankine cycle is a modified form of carnot cycle in which the isothermal compression 3 4 is continued unit the steam is condensed into water. The condenser pressure is 100 kpa p13 p1. As a result of its efficiency of the cycle is lower.

Processes in reheat rankine cycle. A steam power plant operates on an ideal reheat regenerative rankine cycle with one reheater and two feedwater heaters one open and one closed. A carnot cycle using steam as a working substance is represented or p v and t s diagram as shown in the figure.

The rankine cycle is an idealized thermodynamic cycle of a heat engine that converts heat into mechanical work while undergoing phase change. The process of superheating of water vapor in the t s diagram is provided in the figure between state e and saturation vapor curve. Concept of regenerative rankine cycle with feedwater heater will provide better positive result in respect of increase in thermal efficiency of the rankine cycle or in simple way we can say that thermal efficiency of the steam power cycle will be improved quite good by using the concept of regenerative rankine cycle with feedwater heater as compared with reheat cycle.

Reheat rankine cycle can be understood well if you refer the following h s diagram. Rankine cycle efficiency can be improved by using the reheat cycle. It is an idealized cycle in which friction losses in each of the four components are neglected.

In the reheat cycle the steam is extracted at a point when it. Steam enters the high pressure turbine at 15 mpa and 600 oc and the low pressure turbine at 1 mpa and 500 oc. The rankine cycle is a model used to predict the performance of steam turbine systems.

A steam power plant operates on an ideal reheat regenerative rankine cycle with one reheater and two feedwater heaters one open and one closed. From the t s diagram of rankine cycle it is evident that at the state 2 2 working fluid enters the boiler and this temperature is very low temperature at which water is entering the boiler. The condenser pressure is 5 kpa.

Rankine cycle with reheat and superheat the low pressure stage in the superheater further heating at fixed pressure results in increases in both temperature and specific volume. Six processes take place in reheat rankine cycle. Steam enters the high pressure turbine at 6 mpa and 400degreec 8 and the low pressure turbine at 4 mpa and 400degreec 10.

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