A proposal for power generation consuming municipal waste
continues to be developed. It is based on combined process involving
gas and steam turbines branches and uses highly pressurized
fluidized bed boiler generating highly super-heated steam as well.
The MSW is gridding to around 5 mm average particles and fed
into the pressurized vessel as slurry, thus avoiding cumbersome
and costly cascade feeding systems. In addition, the present process
dispenses fuel pre-drying, as usually required by more conventional
processes, thus with substantial savings on capital and
operational costs. In addition, it has been verified that the choice
of boiler operating with bubbling fluidized bed led to several
advantages over more conventional techniques.
When compared with existing power units based on MSW, the
present proposal indicates the possibility of achieving relatively
high efficiencies. Such unit could consume the waste generated
by around 2 million inhabitants in order to provide electric power
for thousands, not to mention the contribution to solve the very
important issue of municipal waste disposal.
This study might be improved to reach even higher overall efficiencies.
Such should concentrate on varying the following
parameters:
(a) Pressure of generated steam.
(b) Pressure of the combustion chamber.
(c) Mass flow of water injected in boiler tube banks.
(d) Geometry of the boiler as well its internals.
(e) Power generation process strategy and optimization.
Those steps should also be complemented by economic evaluations
and comparisons with other alternatives. In addition, future
studies should include evaluations of energy and costs related to
proper treatment of streams leaving gas turbines before they are
released to the environment.
A proposal for power generation consuming municipal wastecontinues to be developed. It is based on combined process involvinggas and steam turbines branches and uses highly pressurizedfluidized bed boiler generating highly super-heated steam as well.The MSW is gridding to around 5 mm average particles and fedinto the pressurized vessel as slurry, thus avoiding cumbersomeand costly cascade feeding systems. In addition, the present processdispenses fuel pre-drying, as usually required by more conventionalprocesses, thus with substantial savings on capital andoperational costs. In addition, it has been verified that the choiceof boiler operating with bubbling fluidized bed led to severaladvantages over more conventional techniques.When compared with existing power units based on MSW, thepresent proposal indicates the possibility of achieving relativelyhigh efficiencies. Such unit could consume the waste generatedby around 2 million inhabitants in order to provide electric powerfor thousands, not to mention the contribution to solve the veryimportant issue of municipal waste disposal.This study might be improved to reach even higher overall efficiencies.Such should concentrate on varying the followingparameters:(a) Pressure of generated steam.(b) Pressure of the combustion chamber.(c) Mass flow of water injected in boiler tube banks.(d) Geometry of the boiler as well its internals.(จ) พลังงานกลยุทธ์กระบวนการสร้างและเพิ่มประสิทธิภาพขั้นตอนที่ควรยังครบครัน ด้วยประเมินเศรษฐกิจและเปรียบเทียบกับทางเลือกอื่น ๆ นอกจากนี้ ในอนาคตการศึกษาควรมีการประเมินพลังงาน และต้นทุนที่เกี่ยวข้องกับรักษาที่เหมาะสมของกระแสข้อมูลที่ออกจากกังหันก๊าซก่อนที่จะออกสู่สิ่งแวดล้อม
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