Determine the approximate enthalpy of the exhaust steam if the heat lost through the turbine casing is 2% of the combined work. Ans.:

 (a) 46.1%,

 (b) 37.3%,  

c) 79.3%, 

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In a reheat cycle steam at 15 MPa, 540°C enters the engine and expands to 1.95 MPa. At this point the steam is withdrawn and passed through a reheater. It reenters the engine at 540°C. Expansion now occurs to the condenser pressure of 0.0035 MPa (a) For the ideal cycle, find e. (b) A 60,000 kw turbine operates between the same state pionts except that the steam enters the reheater at 1.95 MPa and 260°C, departs at 1.8 MPa and 540°C. the steam flow is 147,000 kg/hr, generator efficiency is 96%. For actual engine find ek, mk, and ng. In a reheat cycle steam at 15 MPa, 540°C enters the engine and expands to 1.95 MPa. At this point the steam is withdrawn and passed through a reheater. It reenters the engine at 540°C. Expansion now occurs to the condenser pressure of 0.0035 MPa (a) For the ideal cycle, find e. (b) A 60,000 kw turbine operates between the same state pionts except that the steam enters the reheater at 1.95 MPa and 260°C, departs at 1.8 MPa and 540°C. the steam flow is 147,000 kg/hr, generator efficiency is 96%. For actual engine find ek, mk, and ng.

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Answer TS dlagram f to work dene due to 2otting Kehsa king oy s... View the full answer