1.Which of the following three types of coking gas power generating is the best? Reciprocating internal combustion engine power generation, steam turbine power generation, and gas turbine and fuel gas-steam gas combined cycle generation.
ANS£ºThese three types of power generating have their own advantages in different areas: For Gas turbine and fuel gas-steam gas combined cycle generation :
- Unit capacity is small, generally around 100kw to 4,000kw, suitable for building a small-size power station.
- Generating efficiency is relatively high, normally from 37% to 42%.
- Compact structure; the single unit is light in weight, small in size, convenient for moving; construction of power station is flexible and the building period is short.
- The fuel gas just need low pressure, and can be directly used for power generation once the pressure reaches 300kPa.
- Single machine set can work alone or be connected in paralleled with other sets and work together. The energy output of power station can be easily adjusted according to changes in the amount of fuel gas.
- Fast startup and shut-down; operation and maintenance are simple, maintenance personnel are greatly reduced, and overhaul is convenient.
- The overhaul period is about 20,000 hours.
- Investment for every kilowatt installed capacity is around 2,500 to 3,000yuan, including cost for the machine set, civil-work, factory building, installation and trial run
2. Is the genetated electricity connected to the transformer? Is it allowed on the electricity net? ANS: The output voltage of our Gas turbine and fuel gas-steam gas combined cycle generation is 400V,and it can be directly connected to the 6300V or 10000V transformer, which will prevent electricity produced transferred to the electricity network. As a result, the charging department will not interface your producing.
3. Can the generating gas set keep working when the speed of coking gas flow or the Calorific value decreases£¿ ANS: The generating set will automaticly adjust itself and work just as normal condition,but decrease the electricity productivity.
4. If we do not have coaking gas filtering system, is it very expensive to install the whole system?
ANS: The investment for the gas filtering system is very cheap, as it is only designed for the gas generating sets.
We can afford to to our customer if they want.
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