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Q. What do you mean by Risers and Downcomers?
Risers and downcomers shall be staggered along the shell of the WHB and steam drum for uniform water/steam circulation in the system, taking into account the varying heat fluxes along the length of tubes. Film boiling (or dry-out) must be avoided in order to prevent tubes from destroying by deformity. The first pair of downcomers and the riser shall not be located further than 150 mm (6") form the inlet tubesheet. This distance of 150 mm is from the edge of the tubesheet to the nearest edge of the downcomer pipes.
The downcomer flow velocity shall be restricted to 1.52 m/s (5 ft/s). impingement plates, if provided shall not be welded to nozzle necks and tubes. Perforated plates are not acceptable.
The circulation of WHB system shall be computed for each circuit of downcomer and risers. A detail FEA shall be performed to predict water/steam circulation ratios. The FEA shall be based on an internationally recognized program, such as ANSIS or ALGOR and shall be submitted to WorleyParsons Canada for approval. Unsuitable programs, unacceptable to WorleyParsons Canada, shall be avoided.
Conveyor and auger Two Hydraulic motors are provided for individual control of two conveyors and Auger, which are provided for individual control of material on both the sides
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Q. Explain Fundamental of metal casting? (1)Melting the material (2)Allowing the molten metal to cool and solidify in the mould "A plane where the castings are made is ca
How can I get the literature review on fabrication and construction of a modified Co2 single stroke positive displacement pump driven with electric motor
ENTHALPE
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What is pedestal? What are uses of pedestal? PEDESTALS A pedestal is used to transfer the loads from the metal columns through the floor and soil to the footing when it is a
WHAT IS DIFFERENCE BETWEEN POROSITY AND BLOW HOLE
Applications of capp
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