ME Board Problem Local coal with higher heating value of 5,500 kCal/kg is burned in a pulverized coal fired boiler with 25% excess air at the rate of 25.9 M.T. per hour when the steam generated is 220 M.T. per hour. This boiler is served by 2 forced-draft fans of equal capacityLearn More
May 01, 2021 · b oiler attendant or fireperson - first class means a boiler attendant or fireperson who attends to two or more boilers or two or more suction gas generators, or one boiler the evaporation capacity of which attributed thereto by the maker exceeds 5000 kg but less than 45000 kg of steam per hour, or one gas generator supplying a total engine Learn More
Jul 23, 2003 · Baldwin tried again in 1954 with a 4500 hp C+C-C+C freight locomotive for the Norfolk and Western, numbered 2300. The Babcock and Wilcox water-tube boiler worked at 900 psi, fired with powdered coal. The DC generator supplied 12 traction motors. This locomotive was used in pusher service, and probably gave no improvement in fuel economy.Learn More
24. A coal fired steam boiler uses 3000 kg of coal per hour. Air required for combustion is 15.5 kg per coal at a barometric pressure of 98.2 kPaa. The flue gas has a temperature of 285 °C and an average molecular weight of 30. Assuming an ash loss of 11% and an allowable gas velocity of 7.5 m/s, find the diameter of the chimney.Learn More
Jul 23, 2003 · Baldwin tried again in 1954 with a 4500 hp C+C-C+C freight locomotive for the Norfolk and Western, numbered 2300. The Babcock and Wilcox water-tube boiler worked at 900 psi, fired with powdered coal. The DC generator supplied 12 traction motors. This locomotive was used in pusher service, and probably gave no improvement in fuel economy.Learn More
May 01, 2021 · b oiler attendant or fireperson - first class means a boiler attendant or fireperson who attends to two or more boilers or two or more suction gas generators, or one boiler the evaporation capacity of which attributed thereto by the maker exceeds 5000 kg but less than 45000 kg of steam per hour, or one gas generator supplying a total engine Learn More
Jul 23, 2003 · Baldwin tried again in 1954 with a 4500 hp C+C-C+C freight locomotive for the Norfolk and Western, numbered 2300. The Babcock and Wilcox water-tube boiler worked at 900 psi, fired with powdered coal. The DC generator supplied 12 traction motors. This locomotive was used in pusher service, and probably gave no improvement in fuel economy.Learn More
ME Board Problem Local coal with higher heating value of 5,500 kCal/kg is burned in a pulverized coal fired boiler with 25% excess air at the rate of 25.9 M.T. per hour when the steam generated is 220 M.T. per hour. This boiler is served by 2 forced-draft fans of equal capacity delivering the air at 305 mm of water to the furnace.Learn More
Dec 14, 2020 · 69. 23.5 kg of steam per second at 5 MPa and 400°C is produced by a steam generator. The feedwater enters the economizer at 145°C and leaves at 205°C. The steam leaves the boiler drum with a quality of 98%. The unit consumes 3 kg of coal per second as received having value of 25,102 kJ/kg. What would be the overall efficiency of the unit in Learn More
Dec 14, 2020 · 69. 23.5 kg of steam per second at 5 MPa and 400°C is produced by a steam generator. The feedwater enters the economizer at 145°C and leaves at 205°C. The steam leaves the boiler drum with a quality of 98%. The unit consumes 3 kg of coal per second as received having value of 25,102 kJ/kg. What would be the overall efficiency of the unit in Learn More
ME Board Problem Local coal with higher heating value of 5,500 kCal/kg is burned in a pulverized coal fired boiler with 25% excess air at the rate of 25.9 M.T. per hour when the steam generated is 220 M.T. per hour. This boiler is served by 2 forced-draft fans of equal capacity delivering the air at 305 mm of water to the furnace.Learn More
The feed water enters the economizer at 145oC and leaves at 205oC. The steam leaves the boiler drum with a quality of 98%. The unit consumes 3 kg of coal per second as received having value of 25,102kJ/kg. What would be the overall efficiency of the unit in percent? Steam properties~ A. 65.72 B. 80.67 C. 88.28 D. 78.82 70.Learn More
24. A coal fired steam boiler uses 3000 kg of coal per hour. Air required for combustion is 15.5 kg per coal at a barometric pressure of 98.2 kPaa. The flue gas has a temperature of 285 °C and an average molecular weight of 30. Assuming an ash loss of 11% and an allowable gas velocity of 7.5 m/s, find the diameter of the chimney.Learn More
The feed water enters the economizer at 145oC and leaves at 205oC. The steam leaves the boiler drum with a quality of 98%. The unit consumes 3 kg of coal per second as received having value of 25,102kJ/kg. What would be the overall efficiency of the unit in percent? Steam properties~ A. 65.72 B. 80.67 C. 88.28 D. 78.82 70.Learn More
Sep 20, 2012 · The boiler was used occasionally to steam the engine for interested viewers at my house in the large shed in the back garden, fired both by diesel burner, then later on, by dry timber. The boiler was always maintained full of treated water and generally under a vacuum between firings, and is in as-new condition internally.Learn More
May 01, 2021 · b oiler attendant or fireperson - first class means a boiler attendant or fireperson who attends to two or more boilers or two or more suction gas generators, or one boiler the evaporation capacity of which attributed thereto by the maker exceeds 5000 kg but less than 45000 kg of steam per hour, or one gas generator supplying a total engine Learn More
The pulverized coal is blown into the boiler where it mixes with the supply of air for combustion. Heat is transferred to steam pipes located in the top region of the boiler, these being initially fed with hot water from the boiler feed pump; the hot water then gets converted to steam at high temperature and pressure.Learn More
24. A coal fired steam boiler uses 3000 kg of coal per hour. Air required for combustion is 15.5 kg per coal at a barometric pressure of 98.2 kPaa. The flue gas has a temperature of 285 °C and an average molecular weight of 30. Assuming an ash loss of 11% and an allowable gas velocity of 7.5 m/s, find the diameter of the chimney.Learn More
ME Board Problem Local coal with higher heating value of 5,500 kCal/kg is burned in a pulverized coal fired boiler with 25% excess air at the rate of 25.9 M.T. per hour when the steam generated is 220 M.T. per hour. This boiler is served by 2 forced-draft fans of equal capacityLearn More
The feed water enters the economizer at 145oC and leaves at 205oC. The steam leaves the boiler drum with a quality of 98%. The unit consumes 3 kg of coal per second as received having value of 25,102kJ/kg. What would be the overall efficiency of the unit in percent? Steam properties~ A. 65.72 B. 80.67 C. 88.28 D. 78.82 70.Learn More
boiler attendant or fireperson—first class means a boiler attendant or fireperson who attends to 2 or more boilers or 2 or more suction gas generators,or one boiler the evaporation capacity of which attributed thereto by the maker exceeds 5000 kg but less than 45000 kg of steam per hour,or one gas generator supplying a total engine load Learn More
Sep 20, 2012 · The boiler was used occasionally to steam the engine for interested viewers at my house in the large shed in the back garden, fired both by diesel burner, then later on, by dry timber. The boiler was always maintained full of treated water and generally under a vacuum between firings, and is in as-new condition internally.Learn More
Dec 14, 2020 · 69. 23.5 kg of steam per second at 5 MPa and 400°C is produced by a steam generator. The feedwater enters the economizer at 145°C and leaves at 205°C. The steam leaves the boiler drum with a quality of 98%. The unit consumes 3 kg of coal per second as received having value of 25,102 kJ/kg. What would be the overall efficiency of the unit in Learn More
ME Board Problem Local coal with higher heating value of 5,500 kCal/kg is burned in a pulverized coal fired boiler with 25% excess air at the rate of 25.9 M.T. per hour when the steam generated is 220 M.T. per hour. This boiler is served by 2 forced-draft fans of equal capacityLearn More
Sep 20, 2012 · The boiler was used occasionally to steam the engine for interested viewers at my house in the large shed in the back garden, fired both by diesel burner, then later on, by dry timber. The boiler was always maintained full of treated water and generally under a vacuum between firings, and is in as-new condition internally.Learn More
ME Board Problem Local coal with higher heating value of 5,500 kCal/kg is burned in a pulverized coal fired boiler with 25% excess air at the rate of 25.9 M.T. per hour when the steam generated is 220 M.T. per hour. This boiler is served by 2 forced-draft fans of equal capacity delivering the air at 305 mm of water to the furnace.Learn More