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The Influences of Various Testing Conditions on the Evaluation of Household Biomass Pellet Fuel Combustion

1,2,3, 1,2,3, 1,2,3,* and 1,2,3
1
Bioenergy and Environment Science & Technology, College of Engineering, China Agricultural University, Beijing 100083, China
2
Key Laboratory of Clean Production and Utilization of Renewable Energy, Ministry of Agriculture and Rural Affairs, Beijing 100083, China
3
National Center for International Research of BioEnergy Science and Technology, Ministry of Science and Technology, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Energies 2018, 11(5), 1131; https://doi.org/10.3390/en11051131
Received: 2 April 2018 / Revised: 1 May 2018 / Accepted: 1 May 2018 / Published: 3 May 2018
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PDF [981 KB, uploaded 3 May 2018]
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Abstract

Direct combustion of solid biomass fuel is one of the most common energy sources in developing countries. Evaluation of technology for household biomass pellet fuel combustion is critical, since promoting poorly designed devices may have risks due to exposure to high levels of emissions. This study evaluated the effects of various testing conditions on a top-lit forced-up-draft semi-gasifier cooking stove. An orthogonal test was designed with different fuel masses, chamber heights, air supply rates, and ending points. The investigation showed that using forced secondary air and more fuel tended to improve both thermal and gas emissions performance. The ending points did not have significant effects on thermal efficiency or the carbon dioxide emission factor, but did affect particulate matter emission. A relatively lower chamber height demonstrated better performance on thermal metrics. However, a taller flame had better performance on particulate matter emission factors. The results of the indicators reported by different bases, such as fuel mass-based or useful energy-based were also quite different. The study showed that different testing conditions had significant effects on combustion performances. Testing sequences and emission factors should be reviewed and defined clearly when forming testing methods and standards for biomass pellet fuel combustion. View Full-Text
Keywords: biomass pellet fuel; combustion evaluation; household cookstove; testing conditions; emission factors; thermal performance biomass pellet fuel; combustion evaluation; household cookstove; testing conditions; emission factors; thermal performance
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Zhang, Y.; Zhang, Z.; Zhou, Y.; Dong, R. The Influences of Various Testing Conditions on the Evaluation of Household Biomass Pellet Fuel Combustion. Energies 2018, 11, 1131.

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