A certain factory has an average electrical load of 1800 kW and requires 4.6 MJ/s for heating purposes. It is proposed to install a single-extraction passout steam turbine to operate under the following conditions: Initial pressure 15 bar. Initial temperature 300°C. Condenser pressure 0.1 bar. Steam is extracted between the two turbine sections at 3 bar, is isobarically cooled without subcooling in heaters to supply the heating load. The internal efficiency of the turbine (in the LP Section) is 0.80 and the efficiency of the boiler is 0.85 when using oil of calorific value 44 MJ/kg.Calculate the oil consumption per day. Assume that the condensate from the heaters (at 3 bar) and that from the con- denser (at 0.1 bar) mix freely in a separate vessel (hot well) before being pumped to the boiler. Neglect pump work.
A certain factory has an average electrical load of 1800 kW and requires 4.6 MJ/s for heating purposes. It is proposed to install a single-extraction passout steam turbine to operate under the following conditions: Initial pressure 15 bar. Initial temperature 300°C. Condenser pressure 0.1 bar. Steam is extracted between the two turbine sections at 3 bar, is isobarically cooled without subcooling in heaters to supply the heating load. The internal efficiency of the turbine (in the LP Section) is 0.80 and the efficiency of the boiler is 0.85 when using oil of calorific value 44 MJ/kg.Calculate the oil consumption per day. Assume that the condensate from the heaters (at 3 bar) and that from the con- denser (at 0.1 bar) mix freely in a separate vessel (hot well) before being pumped to the boiler. Neglect pump work.
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