Use of condensing scrubber for particulate removal from large-scale diesel engine exhaust gas

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Volume Title
Helsinki University of Technology | Diplomityö
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Date
2009
Major/Subject
Lämpötekniikka ja koneoppi
Mcode
Ene-39
Degree programme
Language
en
Pages
43 + liitt. (+25)
Series
Abstract
A theoretical model of the test device and simulation program is developed to study the particle removal efficiency of a large-scale diesel engine, and to analyze the device performance with regard to the main operating parameters. The particle removal system is based on the temperature gradient inside a tube, which in turn generates the driving force on the particles. In this study, an extensive literature survey of aerosol physics is presented and a simulation model for the particle removal is developed. A test device was constructed and several experimental tests were carried out. The correlation between the calculated and measured results of removal efficiencies is quite satisfactory in different cases: dry and wet cases with different gas velocities. The phenomenon that was obviously affecting the particle removal efficiency was gas-particle conversion, which reduced the removal efficiency.
Description
Supervisor
Lampinen, Markku J.
Thesis advisor
Turunen, Raimo
Keywords
large-scale diesel engine, particle removal, simulation program, particle deposition, condensing scrubber
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