The role of the wet electrostatic precipitator in the coal-fired magnetohydrodynamics system
According to the New Source Performance Standards (NSPS), particulate emissions from advanced energy conversion technologies must be less than 13 ng/J of energy input. Theoretical calculations as well as measurements made at the University of Tennessee Space Institute (UTSI) in the U.S. Department of Energy`s Coal-Fired Flow Facility (CFFF) have indicated that a considerable fraction of the entrained particles in the coal-fired MHD system will be in sizes below 1 {mu}m. Thus, capturing very fine particles at an overall efficiency exceeding 99% presents a significant challenge for MHD. At the CFFF, A baghouse (BH) and a dry (ESP) are presently operated in parallel to capture such fine particulates. By the summer of 1992, a wet ESP (WESP) will be installed to replace the existing venturi scrubber/cyclone. In this paper, we have discussed the major differences between the dry and wet ESP; the principle of operation; advantages and disadvantages; and the preliminary bench scale results to identify the WESP`s potential in separating soluble potassium salts. (VC)
- Research Organization:
- Tennessee Univ., Tullahoma, TN (United States). Space Inst.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-79ET10815
- OSTI ID:
- 10150895
- Report Number(s):
- DOE/ET/10815-185; CONF-920677-10; ON: DE92014196
- Resource Relation:
- Conference: 30. symposium on engineering aspects of magnetohydrodynamics,Baltimore, MD (United States),29 Jun - 2 Jul 1992; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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