Key success factors in design
power plant are very important to be noted because build a power plant requires
not less cost. Therefore, the power plant should be able to operate properly so
as to produce electrical power output which is expected associated with the big
investment was spent to build it.
Key success factors in design
power plant can be seen from how much the value of EAF (Equivalent Availability
Factor). The expected goal is to get the optimal value of EAF, high efficiency
and low heat rate. Power plant must operate continuously, if at any time
shutdown or the plant stop to operates, the potential loss of profits should be
reduced to a minimum. This means that the power plant should get the value of
EAF as high as possible.
Heat rate is the ratio of
required heat energy (in kJ or Btu unit) to produce electric power 1 kWh (kilo
watt hour). A power plant can be called has high efficiency when has low heat
rate because the power plant needs less fuel than a power plant which has high
heat rate. One of easy methods to determine the value of heat rate in a power
plant is to know the value of SFC (Specific Fuel Consumption). The smaller SFC
at same load, then the power plant is more efficient.
There are some key success
factors in design power plant as follow:
- Design
factors
Design factor is
the most important key success factor long before talking about commercial of
power plant. Design factors can be:
a.
Design capacity factor
The design
capacity of a power plant will affect the design of steam boiler, turbine
generator, heater, deaerator, condenser and other equipment. It also affects
the design pressure, temperature and its flow.
b.
Fuel selection factors
Selection of
fuel will affect the power output of electricity which is generated, but it
also effect on the type of steam boiler which is used, the type of furnace,
fuel handling system, ash handling system and other supporting components.
c.
Location factors such as conditions of wind,
earthquake, corrosion, humidity, coolant reservoir and the others.
d.
Standard material and design factor which is used such
as whether to use standard ASME, JIS, DIN, and the others.
- Construction
factors
Construction
factor is important to be considered such method and sequence of construction
or erection, equipment used, so that at the time of construction phase is
expected to do as little as possible
mistakes so that the duration of construction is not delayed and costs will not
high. Safety factor should also be kept in this phase.
- Commissioning
factors
Commissioning is
the initial testing that is a benchmark of success in a power plant. The first
time each equipment must be tested (individual test) after it perform system
test overall.
- Operation
and maintenance factors
In this factor,
the pattern of operation and maintenance should be well designed both in the
schedule maintenance and type of maintenance, so the power plant can operate
continuously without any damage.
By knowing the key success factors in design power
plant, an engineer is expected can create and design an efficient power plant.
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