How can we adjust air/fuel ratio in the low NOx burners?
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How can we adjust air/fuel ratio in the low NOx burners?
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- What is the importance of burner spacing in the low NOx burners?What are the advantages of the low NOx burners?You serve as the president of XYZ corporation, which is an energy intensive manufacturing operation. You have four boilers to produce steam and electricity for your operations. One is a semi-suspension fired boiler with a capacity of 100 tons of coal per hour. The boiler can also burn supplemental fuel such as coconut or macadamia nut shells. The other three boilers arc peaking units and burn fuel oil. The City of Podunk has approached you about the possibility of burning solid waste as a supplemental fuel. As the president of the XYZ Corporation, you need to develop answers to many political, social, and technical questions before you make a commitment to the city. a. What specific questions would you ask your own power plant engineer about the possibility of accepting Podunk’s MSW? b. What specific additional data would you need from the city before you discuss this further?
- What are the main disadvantages of using a heat exchanger to cool the exhaust gases?When a refrigerant vaporizes, it takes heat from its surroundings. The latentheat of vaporization is the amount of heat needed for the refrigerant tovaporize. When 38.5 pounds of R-124 vaporize at 5°F, the latent heat ofvaporization is 2,721.95 Btu. What is the latent heat of vaporization for 1 poundof R-124 at 5°F?What are non-hydrocarbon fuels?
- Explain the process of capturing CO2 using chilled ammonia systems ?conversion: Given 200 ppmv SO2 (@STP), what isthe SO2 emission rate in lb/hr.Which emits more SOx per unit amount of electricity produced; a coal-fired plant with a 90% efficient SO2 scrubber or an oil-fired plant with m scrubber? Assume the coal has a heat content of 13,000 Btu/lb and contains 3.5% sulfur, and that the oil has a heat content of 6.0(10)* Biu/barrel (42 gallons) and contains 0.9% sulfur, Assume the oil has a specific gravity of 0,92.
