Advantages of superheated steam over saturated steam in steam heated reboilers?

Answer 1

*Dis-advantages are more.
-Because superheated steam can give up so little heat
before it converts back to saturated steam, it is not a good
heat-transfer medium. Some processes, such as power
plants, require a dry heat in order to do work.Whatever
the type of power unit, superheat helps reduce the amount
of condensation when starting from cold. Superheat also
increases the power output by delaying condensation during
the expansion stages in the equipment. Having drier steam
at the exhaust end will increase the life of turbine blades.
Superheated steam can lose heat without condensing
whereas saturated steam cannot. Therefore, superheated
steam can be transported through very long steam lines
without losing sufficient heat to condense. This permits the
delivery of dry steam throughout the entire steam system.

Why Trap Superheated Systems?

The primary reason for traps on superheat systems is the
start-up load. It can be heavy because of the large size
of the mains. On start-up, manual valves will most likely be
used since time is available to open and to close the valves.
This is known as supervised start-up. A second reason for
steam traps is to handle emergencies such as superheater
loss or by-pass, which might require operation on saturated
steam. In these unscheduled events, there is no time
available for manually opening valves; therefore, steam
traps are a necessity.
These are the situations for which proper trap sizing is a
must. Condensate must be removed as it forms in any steam
system to keep efficiency high and to minimize damaging
water hammer and erosion.
*Superheated steam has several properties that make it
unsuitable as a heat energy exchange medium yet ideal
for work and mass transfer. Unlike saturated steam, the
pressure and temperature of superheated steam are independent.
As superheat is formed at the same pressure as
the saturated steam, the temperature and volume increase.

Answer 2

Superheated steam has more energy available for heat transfer, and has a higher heat transfer coefficient, so its use in heat transfer equipment such as in reboilers allows for the use of fewer and smaller diameter tubes, and a smaller less expensive piece of equipment overall.
It also requires smaller diameter delivery piping systems.

Answer 3

superheated steam is steam at a temperature properly above the boiling element at its specific rigidity. that's cooled and nonetheless no longer exchange section from steam to liquid. saturated steam, many times referred to as moist steam, is steam at or very close to the boiling part of its specific rigidity. It variations section while that's cooled from saturated steam into liquid. In a coal power plant, saturated steam has all the useable power extracted from it.

Answer 4

Superheated steam is more powerful and efficient.