1 reply to this topic

[Neilsen]

hello, i am also a final year student and i am currently design a water tube boiler. i would like to know whether if the boiler is divided into threee parts, which consists of economizer, superheater and evaporator. so i have to design all these three components? or i have to design the boiler based on it is sterling, A, O or D type boiler?thanks in advance.

[djack77494]

Unless you work for a boiler manufacturer, my answer would be "neither". You would not ordinarily get involved in a detailed mechanical design of a boiler (or indeed most other types of equipment). Instead of worrying about the mechanical construction of the boiler, you would be concerned about the process requirements of the steam generation system what you seek. Obtain a datasheet for the appropriate equipment; this is the primary way you will convey your technical or process requirements to your potential supplier(s). Review the information needed to complete the datasheet. Likely, you will need to specify the pressure, temperature, and quantity of steam that you need. In complicated cycles, there could be more than one answer here. You must specify the fuel(s) you have available for this purpose, including composition, pressure, and temperature. You must be aware of the vendor's requirements; e.g. he will typically want to be assured that any gaseous fuel is essentially totally free of droplets of liquid fuel or water, for obvious reasons. Power availability issues - volts, watts, frequency, phases, etc. - must be addressed. You and the supplier should interact on areas of mutual interest, such as the quality of boiler feed water that you will supply and that he can accept. The "datasheet" is likely quite a few pages, and that's only the technical part of the overall specification. So you see the process may be quite complicated, and this process I'm describing leaves 100% of the detailed mechanical design of the boiler up to the manufacturer.

(It sounds as if you are describing a fired boiler, yet you titled the topic "Waste Heat Boiler". I believe that is an error.)

Doug.