give me design details of a coal fired water tube boiler.&also i want to know about the thermal design details
Boiler Design involves many different aspects. Consult Perry's Handbook for Chemical Engineers for a start. Any good text book on heat transfer / heat exchanger design will be helpful as well. Mech design is next stage and manufacturer's guides are helpful. Or, If you need a professional design, leave a note for me. I can do a design for you for a small fee. ;)
That depends if you are talking about a drum type boiler or a once through. A drum type boiler will have water in the boiler tubes going to a drum. The water in the drum will boil and create steam that comes out of the top of the drum that goes through some sort of superheater tubes and on to the turbine. These boilers are fired for pressure because the fire maintains the pressure in the drum. In a one through type boiler there is no boiler drum. The water is pumped into hundreds of boiler tubes and turns from water to steam while traveling through the tubes on the way to the turbine. These types of boilers are fired for temperature because the pressure is maintained by the pumps pumping water into the boiler and temperature is maintained by the amount of fire. The once through boilers are usually higher pressure and higher flow boilers.
Central Heating, Locomotive, Steam Turbine or Three Stage Engine? Each has a different use of condensate and pressure where the formation of boiler tubes come into play. Thermal design changes with type of steam and final pressure varies relative to each.
A watertube boiler is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which heats water in the steam-generating tubes. In smaller boilers, additional generating tubes are separate in the furnace, while larger utility boilers rely on the water-filled tubes that make up the walls of the furnace to generate steam. This range of water tube boilers is designed and engineered with high graded raw materials which comply with international quality standards. These boilers are capable of handling large volume of water while heating it. These water tube boilers are used in marine and railway locomotive sectors. This type of boiler dominates the electric power industry, providing steam to drive large turbines. The Thermal Design Power is the average maximum power a processor can dissipate while running commercially available software. Thermal Design Power is primarily used as a guideline for manufacturers of thermal solutions which tells them how much heat their solution should dissipate. This is a very important figure to have in mind if you are intending to use a third party cooler with a CPU or GPU. If you are planning on overclocking the part, you will need to have a cooler that is rated above the TDP of the part in order to properly cool it. It is usually 20% - 30% lower than the CPU maximum power dissipation. TDP is a self-reported metric. Each manufacturer announces it based on their own findings. TDP is one of several important statistics that can help you hash out the performance and power efficiency of a new processor. While nothing can replace benchmarking, knowing a part’s TDP will help you make an educated guess about how a new part will perform. In this respect I can recommend you Tru-Steam Boilers and Service (TBS) Pty Ltd. As this company is made up of a number of skilled trained Boiler Appliance Service Technicians, so their service is very high quality.
