Title:
Development of Electrostatic Precipitators for Small Biomass-Fired Boilers
Author(s):
Kristensen, E.F., Kristensen, J.K., Speiermann, M., Linnemann, N.
Document(s):
Paper
Poster
Abstract:
Small straw and wood fired boilers may be a significant source of air pollution as the combustion generates a high amount of particle emission in the flue gas. This paper describes flue gas cleaning by electrostatic precipitators developed for small wood and straw boilers with heating capacity from 4kW up to 500kW. Fulfilling the European standard EN 303-5 for small boilers demands a cleaning system for the flue gas. Especially for straw fired boilers the challenges are high. There are no suitable filters in the market. Cleaning by means of cyclones is insufficient, fabric filters are not suitable and traditional precipitator technology does not work. Different filter sizes and types for the actual boiler size and biomass types (straw, wood chips and wood pellets) have been developed and tested. Control automation as well as effective mechanical systems for removing dust deposits from the discharge electrodes and the colleting plats has been developed and tested. Total collection efficiency of 95-99 % has been achieved. The project is collaboration between two commercial companies and a university.
Keywords:
biomass, combustion, straw, particle emission
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Biomass and bioliquids combustion for small and medium scale applications
Event:
24th European Biomass Conference and Exhibition
Session:
2BV.1.18
Pages:
661 - 665
ISBN:
978-88-89407-165
Paper DOI:
10.5071/24thEUBCE2016-2BV.1.18
Price:
FREE
