A heat engine operates steadily on the following cycle. Saturated water at a temperature of 200...

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A heat engine operates steadily on the following cycle. Saturated water at a temperature of 200 °C is pumped into a boiler and leaves as dry-saturated steam at a temperature of 200 °C. After adiabatic expansion through a turbine to a pressure of 100 x 103 N/m²the dryness fraction is 0.90. The exhaust steam from the turbine passes to a condenser and is partially condensed, leaving at a pressure of 100 x 103 N/m² with a dryness fraction of 0.15. The wet steam leaving the condenser is then compressed adiabatically in the feed pump before re-entering the boiler as saturated water at a temperature of 200°C. i) Determine the specific entropy values around the cycle. ii) State whether the turbine and pump processes are reversible or irreversible, give reasons. . iii) Evaluate the heat transfer per unit mass of steam in each component, and determine the efficiency of the heat engine. T - A heat engine operates steadily on the following cycle. Saturated water at a temperature of 200 °C is pumped into a boiler and leaves as dry-saturated steam at a temperature of 200 °C. After adiabatic expansion through a turbine to a pressure of 100 x 103 N/m²the dryness fraction is 0.90. The exhaust steam from the turbine passes to a condenser and is partially condensed, leaving at a pressure of 100 x 103 N/m² with a dryness fraction of 0.15. The wet steam leaving the condenser is then compressed adiabatically in the feed pump before re-entering the boiler as saturated water at a temperature of 200°C. i) Determine the specific entropy values around the cycle. ii) State whether the turbine and pump processes are reversible or irreversible, give reasons. . iii) Evaluate the heat transfer per unit mass of steam in each component, and determine the efficiency of the heat engine. T -

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Solution Here are the sets of solutions i The specific entropy values around the cycle are as follows State 1 Saturated water at a temperature of 200C Using steam tables we can find the specific entro... View the full answer