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A concrete block manufacturer operates a natural gas-fired furnace-type curing kiln (rated at 20 Mbtu/hr) and consumes 820, 000, 000 cubic meters of fuel annually. Being similar to a concrete batch plant, sand, aggregate and cement are hauled to the site, stockpiled and then transferred to elevated storage bins and silos. Records indicate that 1, 050 tons of aggregate, 760 tons of sand and 1, 850 tons of cement are purchased each year. Considering only the natural gas fuel combustion and the transfer of materials to storage bins or silos, estimate the total annual particulate matter (PM) emissions coming from this manufacturer and the annual PM emissions for each source. Identify the source that emits the greatest amount of PM. Use the most current AP-42 for your emissions factors.
Why spiral model is called meta model?
(a) Explain briefly any five roadway elements. Include function and current practices used in the design of these elements. (b) Discuss any three emerging (i.e. 'Intelligent T
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Turbine engines cooling : Turbine engines are designed to convert heat energy into mechanical energy. The combustion process is continuous and, therefore, heat is produced. On
AIRCRAFT WEIGHT AND BALANCE - Reference BCAR A5-4 or JAR-25.23 -29 After an aircraft has been constructed, painted and can be said to be ‘representative of its true empty (or
distingush between short range and long range diffusion
Q. Describe the complete procedure of testing permeability of moulding sand. How is permeability influenced by various parameters of the moulding sand ? Ans. Permeability
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Q. Describe the terms "Solids zone", "Mushy Zone" and "Liquid Zone" used in solidification of casting and explain directional solidification in casting. Ans. Solidificati
name the switching schemes used in a digital exchange. how call processing takes place?
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