THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

External Links

online first only

Advantages of thermal industry cluster and application of particle swarm optimization model

ABSTRACT
This paper first analyzes that the waste heat before the flue gas of thermal power company enters the desulfurization tower can be heated by the low-pressure economizer, and then the heated condensate can be incorporated into the regenerative system, so as to recover the waste heat and improve the unit efficiency. In this paper, the possible layout scheme of the low pressure economizer in the thermal system is constructed firstly, and then the mathematical model of the equivalent enthalpy drop increment of the unit is established with the water partition coefficient as the independent variable. Particle swarm optimization and coordinate rotation are used to optimize the model, and the results show that particle swarm optimization is more effective in solving the problem. After the low-pressure economizer is added to the unit, the heat consumption of the whole plant of the unit is reduced by 61.131, the unit efficiency is increased by 0.783%, and the coal consumption of the whole plant is reduced by 2.293. Finally, from the perspective of industrial agglomeration, industrial diversification and economic resilience, this paper analyzes the advantages of diversified agglomeration of thermal power companies.
KEYWORDS
PAPER SUBMITTED: 2020-05-26
PAPER REVISED: 2020-07-07
PAPER ACCEPTED: 2020-07-14
PUBLISHED ONLINE: 2020-09-12
DOI REFERENCE: https://doi.org/10.2298/TSCI200526258C
REFERENCES
  1. Niu Z.G. Research and application of energy saving theory of low pressure economizer system in thermal power plant. Ph. D. thesis, Shandong University. Jinan, China. 2004.
  2. Wang C. J. et al. Application of a low pressure economizer for waste heat recovery from the exhaust flue gas in a 600 MW power plant. Energy , 48 (2012), 1, pp. 196 202.
  3. Yang S. M. Heat transfer . Higher education press, Beijing, China,
  4. Zhuang J. and Zhang H., Heat pipe technology and its engineering application . Chemical Industry Press, Beijing, China, 2000.
  5. Huang X. Y., Course design of thermal power plant . China Electric Power Press, Beijing, China, 2004