Partially Premixed Combustion with Methanol in a Heavy Duty Engine
(2015) MVK920 20151Department of Energy Sciences
- Abstract (Swedish)
- PPC is a new combustion concept that combines high efficiency with low emissions.
This thesis is based on experiments conducted with a heavy duty PPC engine that was ran on neat methanol. A fuel that might be a candidate for future engine propulsion in large scale.
By varying the inlet pressure, the corresponding inlet temperatures were found for premixed combustion, i.e. combustion in HCCI mode. Around the different operating points that were found in HCCI, the load range was investigated in PPC in the next experiment. By decreasing the temperature as the load was increased, the range of operation was extended many times compared to a constant inlet temperature. The results show a maximum load slightly above 9 bar IMEP, and the lowest... (More) - PPC is a new combustion concept that combines high efficiency with low emissions.
This thesis is based on experiments conducted with a heavy duty PPC engine that was ran on neat methanol. A fuel that might be a candidate for future engine propulsion in large scale.
By varying the inlet pressure, the corresponding inlet temperatures were found for premixed combustion, i.e. combustion in HCCI mode. Around the different operating points that were found in HCCI, the load range was investigated in PPC in the next experiment. By decreasing the temperature as the load was increased, the range of operation was extended many times compared to a constant inlet temperature. The results show a maximum load slightly above 9 bar IMEP, and the lowest load below 3 bar within the defined limitations of the load range.
The highest indicated efficiency reached, was 51 percent for 1.5 bar inlet pressure.
The emissions were also analyzed, and except for quite high levels of unburned hydrocarbons compared to emission standards, the obtained values were found to be promising. (Less)
Please use this url to cite or link to this publication:
http://lup.lub.lu.se/student-papers/record/7762390
- author
- Kristersson, Gustav LU
- supervisor
-
- Martin Tunér LU
- organization
- course
- MVK920 20151
- year
- 2015
- type
- H2 - Master's Degree (Two Years)
- subject
- keywords
- PPC Methanol
- report number
- ISRN LUTMDN/TMHP-15/5356-SE
- ISSN
- 0282-1990
- language
- English
- id
- 7762390
- date added to LUP
- 2015-08-19 10:19:07
- date last changed
- 2015-08-19 10:19:07
@misc{7762390, abstract = {{PPC is a new combustion concept that combines high efficiency with low emissions. This thesis is based on experiments conducted with a heavy duty PPC engine that was ran on neat methanol. A fuel that might be a candidate for future engine propulsion in large scale. By varying the inlet pressure, the corresponding inlet temperatures were found for premixed combustion, i.e. combustion in HCCI mode. Around the different operating points that were found in HCCI, the load range was investigated in PPC in the next experiment. By decreasing the temperature as the load was increased, the range of operation was extended many times compared to a constant inlet temperature. The results show a maximum load slightly above 9 bar IMEP, and the lowest load below 3 bar within the defined limitations of the load range. The highest indicated efficiency reached, was 51 percent for 1.5 bar inlet pressure. The emissions were also analyzed, and except for quite high levels of unburned hydrocarbons compared to emission standards, the obtained values were found to be promising.}}, author = {{Kristersson, Gustav}}, issn = {{0282-1990}}, language = {{eng}}, note = {{Student Paper}}, title = {{Partially Premixed Combustion with Methanol in a Heavy Duty Engine}}, year = {{2015}}, }