Mohit Raj Saxena, Rakesh Kumar Maurya

  • School of Mechanical, Materials and Energy Engineering, Indian Institute of Technology Ropar, Rupnagar-140001, India

Received: April 9, 2016
Revised: July 12, 2016
Accepted: August 2, 2016
Download Citation: ||https://doi.org/10.4209/aaqr.2016.04.0144  

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Cite this article:
Saxena, M.R. and Maurya, R.K. (2016). Effect of Butanol Blends on Nano Particle Emissions from a Stationary Conventional Diesel Engine. Aerosol Air Qual. Res. 16: 2255-2266. https://doi.org/10.4209/aaqr.2016.04.0144


HIGHLIGHTS

  • Higher heat release rate found for butanol/diesel blends.
  • Butanol/diesel blends emitted lower total particulate concentration.
  • Concentration of nucleation mode particles reduces with engine operating load.
  • Surface area and mass concentration is lower for butanol/diesel blends.

 

ABSTRACT


In this study, combustion characteristics and nano-size soot particle emissions from a stationary conventional diesel engine have been experimentally investigated using butanol/diesel blends. Experiments were conducted on a single cylinder stationary diesel engine at a constant speed of 1500 rpm for neat diesel and butanol/diesel blends (i.e., 10%, 20% and 30% butanol on volume basis) at different engine loads. Piezoelectric pressure transducer installed in the engine combustion chamber was used for measuring cylinder pressure data. In-cylinder pressure data for 2000 consecutive engine cycles was recorded and averaged data was used for the analysis of combustion characteristics. Butanol/diesel blends show higher rate of heat release in comparison to neat diesel and heat release rate increases with butanol percentage in the blend. Opacity meter and exhaust particle sizer were used for analyzing smoke opacity, size and mass distributions of soot particles respectively at different engine operating conditions. Soot particle distribution from 5 nm to 1000 nm was recorded at each test condition. Results show that total particle concentration decreases with an increase in engine operating loads. It was found that butanol/diesel blends have lower total particulate concentration and the surface area.


Keywords: Particulate matter; Smoke opacity; Combustion; Butanol; Diesel


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