Laboratory study of the effects of moisture content on heat transfer and combustion efficiency of three biomass cook stoves

Yuntenwi, Ernestine A. Tangang; MacCarty, Nordica; Still, Dean; Ertel, Jürgen

doi:10.1016/s0973-0826(08)60430-5

Cited by 48 publications

(30 citation statements)

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“…Although the aforementioned high moisture content in biomass fuels may not greatly influence combustion (e.g., emissions and combustion efficiency) [29], it could affect ash deposition during combustion. Shao et al [30,31] conducted the first investigation of the effects of moisture content (<5 wt% and 30-35 wt%) in the feed on ash deposition during combustions of individual fuels (woody biomass/peat/coal) and some fuel blends.…”

Section: >90%mentioning

confidence: 99%

Ash Deposition in Biomass Combustion or Co-Firing for Power/Heat Generation

et al. 2012

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This paper presents a concise overview of ash deposition in combustion or co-firing of biomass (woody biomass, agricultural residues, peat, etc.) with other fuels for power/heat generation. In this article, the following five research aspects on biomass combustion ash deposition are reviewed and discussed: influence of biomass fuel characteristics, deposit-related challenges, ash deposition monitoring and analysis of ash deposits, mechanisms and chemistry of fly ash deposition, and key technologies for reducing ash deposition and corrosion in biomass-involved combustion.

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Section: >90%mentioning

confidence: 99%

Ash Deposition in Biomass Combustion or Co-Firing for Power/Heat Generation

et al. 2012

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“…The liquid fuel stoves were fueled with off-the-shelf fuel purchased in United States hardware stores. It is important to acknowledge that fuel source, quality and moisture level will have an effect on the stove performance (Yuntenwi et al, 2008). This is why all stoves are tested using the same fuel supply when possible.…”

Section: Water Boiling Testmentioning

confidence: 99%

“…The effects of operator, differences in the fuel supply, types of pots, and variety of food cooked in the field make comparison of stoves from different regions very difficult if not impossible. The effects of some of these variables can be investigated using the WBT to develop stoves that can perform well under varying conditions, and some of this work has been done previously (Yuntenwi et al, 2008). However other variables cannot be easily quantified, such as the common practice of leaving the fuel in the stove to smolder when finished cooking.…”

Section: Water Boiling Testmentioning

confidence: 99%

Fuel use and emissions performance of fifty cooking stoves in the laboratory and related benchmarks of performance

MacCarty¹,

Still²,

Ogle³

2010

Energy for Sustainable Development

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285

167

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“…Another key limitation is that a multiple‐firepower protocol assumes a relationship between firepower and emissions. There is literature precedence for this relationship; however, the studies that have assessed emissions and firepower have only looked at binary trends (ie, low vs. high firepower) or a single stove‐fuel combination. Thus, this relationship has not been rigorously evaluated.…”

Section: Introductionmentioning

confidence: 99%

“…There is literature precedence for this relationship; [31][32][33][34][35][36][37][38][39][40] however, the studies that have assessed emissions and firepower have only looked at binary trends (ie, low vs. high firepower) or a single stove-fuel combination. Thus, this relationship has not been rigorously evaluated.…”

Section: Introductionmentioning

confidence: 99%

The Firepower Sweep Test: A novel approach to cookstove laboratory testing

et al. 2018

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Emissions from solid-fuel cookstoves have been linked to indoor and outdoor air pollution, climate forcing, and human disease. Although task-based laboratory protocols, such as the Water Boiling Test (WBT), overestimate the ability of improved stoves to lower emissions, WBT emissions data are commonly used to benchmark cookstove performance, estimate indoor and outdoor air pollution concentrations, estimate impacts of stove intervention projects, and select stoves for large-scale control trials. Multiple-firepower testing has been proposed as an alternative to the WBT and is the basis for a new standardized protocol (ISO 19867-1:2018); however, data are needed to assess the value of this approach. In this work, we (a) developed a Firepower Sweep Test [FST], (b) compared emissions from the FST, WBT, and in-home cooking, and (c) quantified the relationship between firepower and emissions using correlation analysis and linear model selection. Twenty-three stove-fuel combinations were evaluated. The FST reproduced the range of PM and CO emissions observed in the field, including high emissions events not typically observed under the WBT. Firepower was modestly correlated with emissions, although the relationship varied between stove-fuel combinations. Our results justify incorporating multiple-firepower testing into laboratory-based protocols but demonstrate that firepower alone cannot explain the observed variability in cookstove emissions.

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Laboratory study of the effects of moisture content on heat transfer and combustion efficiency of three biomass cook stoves

Cited by 48 publications

References 1 publication

Ash Deposition in Biomass Combustion or Co-Firing for Power/Heat Generation

Ash Deposition in Biomass Combustion or Co-Firing for Power/Heat Generation

Fuel use and emissions performance of fifty cooking stoves in the laboratory and related benchmarks of performance

The Firepower Sweep Test: A novel approach to cookstove laboratory testing

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