Question along wth answers related to boilers

What are the aspects to be taken care-off in design? Head-room, walk-way, access, approach, clash detection, clash resolution and interfacing.

What are the software's used in design office? MS Windows, MS Office, STAAD. Pro, CAEPIPIE, CAESAR - II.

What are the hardware required in design office? Computer with accessories, Un-interrupted power supply (UPS), Xerox machine, FAX.

What software are used for piping stress analysis? CAEPIPE and CAESAR - II.

What are the plant design computer programs used? CATIA, Plant Design System (PDS), Plant Design Management System (PDMS).

What are the Finite Element Analysis (FEA) software available? ANSYS, COSMOS, ABACUS and NASTRAN.

What is the head room required? Head room required = 1.800 mm.

What is the walk- way width required? Walk-way width required = 900 mm.

What is the load per unit area on the boiler floors? Load per square meter = 500 kg.

What is the allowable deflection due to loads? Allowable deflection = " Span / 325 ".

What is the allowable drift? Allowable drift = " Height / 325 ".

Why stress concentration factor (SCF) is not considered in boiler design? The boiler materials are ductile steel. The stress, after yielding, Re-distributes favorably.

What is virtual zero point? Large top supported boilers expand cubically with respect to a virtual Zero point near the top.

What is floating anchor? Floating anchors are anchors with thermal expansion movements.

What is buckstay channel? Buckstay channel is used to support the furnace walls and helps in transfer of loads.

What is furnace guide? Furnace guides fix the virtual zero point. This is used to transfer load From hot structure to cold structure. l am-water mixture.

List the drum internals Turbo-separator or cyclone separator, pipes for vents, drains ad chemical dosing.

What is the purpose of a header? Header collects or distributes steam or water or steam-water mixture.

State ideal gas law. PV = m R T.

State zeroth law of thermodynamics. If systems A and B are in equilibrium with system C, then systems A and B Are in equilibrium.

State the First law of thermodynamics. In an isolated system, the energy is always conserved.

State the Second law of thermodynamics. A system has to deliver heat with a sink while pumping heat from a lower Source to a higher source.

State First law of Newton A body will be in its state of rest or steady motion along a straight line Unless acted upon by external force.

State Second law of Newton. The rate of change of momentum is equal to force.

State Third law of Newton. For every action, there is an equal and opposite reaction.

State Newtons universal law of gravitation. All bodies attract each other. The force of attraction is inversely proportional to the square of distance of separation.

What are the types of pollution? Solid pollution, liquid pollution, air pollution and noise pollution.

What is the causes of air pollution? The main causes of air pollution are power plants and automobiles.

Why Reinforced Cement Concrete (RCC) is used? RCC is labor intensive and economical in India.

What is pre-stressed concrete? Pre-stressing with steel rods in the RCC is pre-stressed concrete.

What is the function of foundation bolts? Foundation bolts holds-down the structure to earth.

What is Flue Gas De-sulfurisation (FGD)? FGD is used to remove sulfur and sulfur compounds from the flue gas.

Name a few structural elements (members). Column, beam and bracing. What are the fuels used in boilers? Coal, oil and fuel gas. What are the types of boilers used? Power boilers, industrial boilers. What are the Balance of plant (BOP) in a power station? Coal handling, ash handling, auxiliary piping, cooling water plant, Chemical treatment plantlet. What is a buckstay? Buckstay is a product used to avoid bucking of the slim water walls and steam cooled walls. What is a de-super heater? De-super heater reduces the temperature of the super-heated steam. What is a de-aerator? De-aerator is a product used to remove oxygen and other gases from the water. What is a burner? Burner is used to burn solid or liquid or gaseous fuels. What is a water wall? Water wall is made of series of tubes connected with each other. Water flows inside the tubes. What is a steam cooled wall? Steam cooled wall is made of tubes connected with each other. Steam flows inside these tubes. What are the types of air-heaters? Air-heaters can be rotary type or stationery type. Why ash collection devices are used? Ash collection devices are used to reduce pollution. What are the types  of ash collection devices? Mechanical precipitation and Electro-static precipitation are the two types used. What are soot blowers? Soot blowers are used to clean the heat transfer surfaces of boiler. What are the mediums used for soot blowing? Air blowing or steam blowing are the two methods used. What are the types of soot blowers? Wall blowers and long retractable blowers are used. What are the type of  heat transfer surfaces used? Plain surfaces and finned surfaces are for heat transfer.