Abstract View
Design and Evaluation of a New Source Sampler for on-Field Emission Measurement from Combustion Sources
JYOTI KUMARI, Kashish Jain, Kumail Zaidi, Gazala Habib, Indian Institute of Technology Delhi
Abstract Number: 599
Working Group: Combustion
Abstract
Previous inventories have identified biomass fuel combustion in cooking stoves as one of the major source of aerosol emissions in India. The emission factors reported in numerous recent studies are based on controlled tests conducted in the simulated kitchens in the lab using single fuel type. Few field experiments have reported higher emission factors compared to lab-based measurement however, still, the database needs representative enrichment to refine emission estimates. A new source sampler has been designed for the on-field collection of PM2.5, near real-time quantification of its microphysical and optical characteristics (i.e. Number concentration, Absorption, and scattering coefficients) and gaseous pollutant’s emissions from combustion sources. The sampler consists of a portable dilution tunnel, ejector dilutor, zero-air generator, and power supply unit. The dilution tunnel has been evaluated for the particle losses and homogenous mixing along the length of the tunnel. The results showed insignificant particle losses inside the tunnel at different dilution ratios (20:1 to 40:1). A pilot study was conducted in Haryana, India showed that the PM2.5 emission factors were 2.5-4.5 times higher from the use of mixed fuel (i.e. fuelwood and dung cake) compared to use of fuelwood and cow dung alone separately. The paper will discuss the evaluation of the source sampler and on-field emission factors of PM2.5, OC, EC, BC, and gaseous pollutants for residential biofuel cookstove.