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Problem: A 2000-MW electric generating station burns 278 tonnes of residual fuel oil per hour. The fuel contains 2.6% S and 1.2% ash. The station is equipped with particle, sulfur dioxide, and nitrogen oxide emission control systems. The particle collector must operate at efficiencies exceeding 98% because the ash is valuable for its vanadium content. The sulfur dioxide removal device operates at a normal efficiency of 80%.
Required:
Question 1: Estimate the hourly SO2 and particle emissions from the station.
Question 2: What type of particle collector would you use at the station? Give three reasons for choosing this type of collector.
Question 3: What type of SO2 removal device before (in front of) or after (following) the particle collector would you use?
Question 4: How would you control the nitrogen oxide emissions?
determine the power developed by the force when t = 5s. Hint: First determine the time needed for the force to cause motion.
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Is the system glazed from inside the building or outside
In a three phase balanced system, a delta connected source supplies power to a wye connected load. If the line impedance is 0.2 + j0.4 ohms, the load impedance 3 + j2 ohms, and the source phase voltage Vab = 208 at a 10 degree angle (V rms).
A lake has a volume of 750,000 m3 (dimensions 15 m deep, 100 m wide, and 500 m long) and behaves as two completly mixed cells. Cell 1 makes up 40% of the lake ( dimensions 15 m deep, 100 m wide, and 200 m long) cell 2 makes up 60% of the lake (dimens..
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