Steam system and distribution

Introduction:

 👉Steam has been a popular mode of conveying energy since the industrial revolution. Steam is used 

for generating power and also used in process industries such as sugar, paper, fertilizer, refineries, 

petrochemicals, chemical, food, synthetic fibre and textiles The following characteristics of steam

make it so popular and useful to the industry: 

👉Highest specific heat and latent heat 

Highest heat transfer coefficient 

Easy to control and distribute 

Cheap and inert.

Steam distribution:

👉The steam distribution system is the essential link between the steam generator and the steam user.

 

👉Whatever the source, an efficient steam distribution system is essential if steam of the right quality 

and pressure is to be supplied, in the right quantity, to the steam using equipment. Installation and 

maintenance of the steam system are important issues, and must be considered at the design stage.

👉As steam condenses in a process, flow is induced in the supply pipe. Condensate has a very small 

👉volume compared to the steam, and this causes a pressure drop, which causes the steam to flow 

through the pipes. The steam generated in the boiler must be conveyed through pipework to the 

point where its heat energy is required. Initially there will be one or more main pipes, or ‘steam

mains’, which carry steam from the boiler in the general direction of the steam using plant.

 

👉Smaller branch pipes can then carry the steam to the individual pieces of equipment. A typical 

steam distribution system is shown in Figure.

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