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Q.Explain working of Steam Drum?
Total solids concentration in the steam at steam manifold outlet shall not exceed 0.5 ppm during steady operation at MCR. Fabricator must indicate the maximum acceptable total dissolved solids concentration in the boiler water when operating normal drum water level.
The normal water operating level in the steam drum shall be not less than 25 mm (1") below the drum center line. In the drum, the surface area of the normal operating water level shall be sized based on 100% MCR, such that the maximum surface release rate shall not exceed 3,900 kg/m2h (800 lb/ft2h).
Water hold-up between fabricator's stated normal water level and top downcomer level shall be sufficient to enable operating at 100% MCR for at least five minutes in the event of loss of boiler feed water supply. This resident time design shall include ramping rate of 20% MCR per minute.
The water surge volume in the steam drum shall be adequate to accommodate the resultant swell from increase in load of 20% of MCR per minute without actuating the low water level cut-off.
Explain the importance of Hydraulic paver machine In the center of the augers is a gear box. Kick back paddles are used to "tuck" mix under the gear box. If the paddles were n
Q. Scraper Launchers and Receivers? Scraper launchers and receivers associated with the pipelines shall be located in open, well-ventilated areas with the opening directed away
Define and classified parallel forces Sol.: The forces, the lines of action of which are parallel to each other, are called as parallel forces. They do not meet at one point
How a turbine works
Remove clutch cover and check clutch operating arm, spring and clutch lifter rod :Check for free movement of rod clutch lifter in the cover right crankcase. Check for lever comple
Design Problem: Design a pipeline and pump station to pump 100 MGD of water to the Mississippi river. To reduce the required horsepower of the pumps, the flow will be pressurized
Q. Cyclic Service for vessels? The required service for all vessels shall include consideration of cyclic service. Batch operation vessels, for example, quite frequently fall i
WELDING PROCEDURE SPECIFICATION (WPS) The purpose of Welding Procedure Specification (WPS) and Procedure Qualification Record (PQR) is to determine that weldment proposed
Special Tool: Use special tools wherever applicable. Special tools are designed to dismantle or assemble a specific part or assemblies without causing damage to them. Cleaning
What is the Drilling operation Drilling operation can only performed in vertical direction. Hence drilling hole at angle is not performed by drilling machine. It is a big drawb
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