Table of Contents
Why balanced Draught is preferred over forced or induced Draught?
The balanced draught is a combination of forced and induced draught. The forced draught overcomes the resistance of the fuel bed there fore sufficient air is supplied to the fuel bed for proper and complete combustion.
What is the purpose of Draught in power plant?
The draught is one of the most essential systems of the thermal power plant which support the required quantity of air for combustion and removes the burnt products from the system.
What is the function of balance Draught in steam power plant?
Draught is necessary to overcome the resistance to the flow of air and combustion gases and this resistance is contributed by ducts, chimney, fuel beds, boiler gas passages, baffles, dampers, air preheaters, economisers, deposits of soot and dust in gas passages and the required rate of combustion.
What is balanced draft?
In order to meet higher pressure differentials, the stacks must simultaneously operate with draft fans. Balanced draft: When the static pressure is equal to the atmospheric pressure, the system is referred to as balanced draft. Draft is said to be zero in this system.
What is a balanced draft system?
Balanced Draft Furnaces equipped with both an FD (Forced Draft) and ID (Induced Draft) fans are called balanced draft systems; see Figure 1. In balanced draft systems, the forced and induced draft fans work together to move combustion air and flue gases through the furnace.
What is the function of Draught?
Draught may be defined as the small pressure difference which causes a flow of gas to take place. In case of a boiler the function of the draught is to force air to the fire and through a boiler furnace and flue, and to discharge the products of combustion to atmosphere via stack or chimney.
What is Draught explain?
draught Add to list Share. The noun draught is pronounced exactly like draft, and it also shares most of the same meanings. A cold burst of wind, a swig or a serving of a drink, the act of pulling a heavy load, and the depth of a ship below the surface of the water: each of these can be called a draught.
What is positive draft?
A positive draft means the angle of the face, with respect to the direction of pull, is more than the reference angle. Negative draft. Displays any faces with a negative draft, based on the reference draft angle you specified.
What is draft system?
A draft is a process used in some countries (especially in North America) and sports to allocate certain players to teams. In a draft, teams take turns selecting from a pool of eligible players. Depending on the sport, the players may come from college, high school or junior teams, or teams in other countries.