Keywords
Gasified cooking stoves, thermal performance, cooking fuels and literature review.
This article is included in the International Conference on Clean Energy Systems and Technologies collection.
Gasified cooking stoves, thermal performance, cooking fuels and literature review.
One of the largest energy-consuming sectors in developing nations is the cooking sector, and this sector requires a large amount of energy and effort as it is a commonplace daily activity. Biomass fuel, natural gas, oil, and coal are the predominant sources of energy for cooking sector, and the majority of the inhabitants in developing countries rely on conventional fuels, typically wood and agricultural residues. Approximately three billion people worldwide, 41% of households, rely on solid biomass fuels (biomass such as wood, crop residues, dung, charcoal, and coal) for cooking due to the affordability or availability of these fuels, especially in developing countries in Asia and sub-Saharan Africa (Bonjour et al., 2013). The majorities of the conventional cooking are perpetrated over open flames, which burn inefficiently and result in significant emissions. It is worth to be mentioned that, in 2010, about 3.5 million premature deaths globally were caused by household air pollution (Lim et al., 2012), and it also contributed to outdoor air pollution, which resulted in an additional 370,000 deaths and 9.9 million disability-adjusted life worldwide (Chafe et al., 2014). Furthermore, household emissions can stimulate lung cancer, chronic obstructive pulmonary disease and chronic bronchitis, cardiovascular diseases, low birth weight, stillbirth, and acute lower respiratory infections (Amegah & Jaakkola, 2016). Excessive uses of solid fuels have pernicious effects on human health, regional environment, and global climate (Smith et al., 2004). Due to the pernicious impact on human health that results in sophisticated diseases, global temperature rise, hazardous gas emissions, and excessive time waste in conventional cooking, the advancement of heat generation techniques in cooking stoves become significant.
To concoct an improved cooing stove, it must requires substantial improvements in combustion efficiency as well as increased fuel efficiency compared to conventional stoves (Venkataraman et al., 2010). In the first decade of the 1940s, the development of biomass-based cooking stoves commenced in India, and these stoves were known as improved mud cooking stoves. Then another study (Raju, 1954) reported the development of the upgraded multi-pot mud cooking stoves for Indian rural households. Afterwards, an upsurge in better cooking stoves appeared due to the world's focus shifted to environmental concerns and energy conservation measures. These cooking stoves were created and built using engineering principles, making them more effective and long-lasting than the conventional open fired cooking stove. Investigators are currently attempting to design cooking stoves that are more ecologic and sustainable as well as more energy and thermally efficient. To date, several different types of improved cooking stoves have been designed and investigated, i.e. patsari cooking stoves (Cynthia et al., 2008), mirt cook stove (Dresen et al., 2014), gasifier cook stove (Carter et al., 2014), wick stove (Dinesha et al., 2019), pellet stoves (Boman et al., 2011), radiant stoves (Pantangi et al., 2011), etc. From the above verities, gasifier cook stove is one of the potential energy efficient and environment friendly cook stove.
The process of transforming solid or liquid feed stocks into usable gaseous or other chemical fuels that may be combusted to produce thermal energy is known as gasification. Fuel with a small amount of air is delivered into a closed container so that the fuel can be partially combusted to generate the required heat for gasification. The fundamental idea of gasification is that it is a thermochemical process that uses the reactions of drying, pyrolysis, oxidation, and reduction to turn solid fuel into a combustible gas (producer gas) (Basu, 2010). In a gasifier cook stove, biomass is gasified in the reactor to generate syngas, thereafter, syngas is burned in the burner in order to obtain producer gas flame (Susastriawan et al., 2021). On the contrary, biomass is directly combusted with the presence of excess air and produced heat and flue gas.
Due to the eclectic amount of highly appealing characteristics of gasifier cookstoves, including high efficiency, smoke-free safe combustion, uniform and steady flame, simplicity of controlling the flame, and operational capability for long periods (Raman et al., 2014), the advancement of gasifier cooking stoves became significant. Therefore, to date, several research studies had been performed on the design and development of gasifier cooking stoves with the goal of increasing efficiency and dwindling emission such as producer gas stove with bluff-body shape in burner (Susastriawan et al., 2021), producer gas stove (Panwar et al., 2011; Punnarapong et al., 2017), Chinese gasifier stove (Carter et al., 2014), natural-draft gasifier cookstoves (Hailu, 2022; Tryner et al., 2014), fixed bed advanced micro-gasifier cook stove (Sakthivadivel & Iniyan, 2017), inverted downdraft gasifier (Narnaware & Pareek, 2016; Ojolo et al., 2012; Osei et al., 2020), biomass gasifier cookstove (Panwar & Rathore, 2015), top-lit updraft gasifier cookstove (Scharler et al., 2021), advance micro-gasifier stove (Sakthivadivel et al., 2019; Wamalwa et al., 2017), rice husk gas stove (Ndindeng et al., 2019), natural and force draft gasifiers stove (Getahun et al., 2018), and natural cross draft (Nwakaire & Ugwuishiwu, 2015). However, to the authors’ best knowledge, no proper systematic reviews have already been conducted on the overall thermal performance of gasifier cook stoves, with an emphasis on types of gasifier stoves, cooking fuels, location of investigation, and materials to fabricate stoves. Therefore, in this study, a systematic review has been performed to consolidate all the technical works published on the thermal performance of gasifier cooking stoves as well as further analyse the areas on which additional studies should be focused for future research trajectory.
A typical research methodology steps for systematic review of Tranfield et al. (2003) are considered which are given in Figure 1 wherein the 1st stage is known as “Define” which is subdivided by steps as “Identification of need for a literature review” and “Development of a literature review protocol”. The 2nd stage known as “Collect and Select” which is also consist of two steps- “Identification of documents” and “Selection of relevant documents”. Simultaneously, the 3rd stage is “Analyse” which is categorized as documents and Data extraction steps. Meanwhile, the final stage is “Result” indicates the last steps “Documents Finding” wherein collected all documentation are reviewed significantly for extracting knowledge from gathered information.
A literature search was conducted to cover the period from January 2008 to August 2022. Scopus, Web of Science, Google Scholar and Science Direct databases were selected as search strings. EndNote X 9.0 software was used to exclude duplicates from searched data. The protocol of the review discussed in Table 1. Moreover, the system for search string database is presented in Table 2 where the process to search articles in different considered database is discussed.
A total of 1153 articles initially identified. After removing duplicates, checking title, abstract and full text, 28 were found eligible based on the predetermined exclusion and inclusion criteria for this study. Among the 28 selected articles, all conducted their investigation on gasified cooking stoves experimentally and only 3 articles performed numerical/computational analysis beside experimental study.
The publications year of the selected articles is summarized in Figure 2, which was obtained from Table 3. The figure shows that the selected articles were published in 2022, 2021, 2020, 2019, 2017, 2016, 2015, 2014, 2012 and 2008. The result also highlights that the highest amount of research on gasified cooking stoves was conducted in 2019 at 18% and the lowest amount of research was conducted in 2012 at only 4%. From the beginning to the mid of the current year 2022 almost 14% studies were identified from the selected literature which reflects that the investigation demand on gasified cooking stoves is recently also a high priority to researchers.
Authors | Gasified stove types | Study types | Study locations | Material used | Fuel/energy source | Thermal Efficiency |
---|---|---|---|---|---|---|
Hailu, 2022 | Natural draft | Experimental | Not mentioned | Steel sheet or cast iron | Eucalyptus, bamboo, and sawdust-cow dung briquettes | 29.85%, 28.43% and 23.76% for eucalyptus, sawdust-cow dung briquette, and bamboo |
Himanshu et al., 2022 | Forced draft with separate secondary and primary air fans | Experimental and computational | India | Not mentioned | Biomass pellets | 41-43% |
Gutiérrez et al., 2022 | General gasified | Experimental | Not mentioned | Not mentioned | Wood pellets and wood chips from pine patula as fuels; | 25.2% for pellets and 24.1% for chips. |
Varunkumar et al., 2012 | General gasified | Experimental and computational | Not mentioned | Not mentioned | Wood | 45– 47% |
Scharler et al., 2021 | Top-lit updraft | Experiment and Numerical | Not mentioned | Not mentioned | Wood pellets and rice hull pellets | 42% |
Susastriawan et al., 2021 | Producer gas stove with bluff-body shape in burner | Experimental | Indonesia | Mild Steel | Rice husk and sawdust wastes | 17.6% |
Andika and Nelwan, 2020 | Updraft | Experimental | Not mentioned | Carbon steel for chamber and ceramic wool for insulation | Cassava peel | 5.88 to 8.79% |
Osei et al., 2020 | Inverted downdraft | Experimental | Ghana | Stainless steel | Rice husk | 30.5-38.1% |
Ahmad et al., 2019 | Top-lit updraft (TLUD) with remote burner and fuel reactor | Experimental | China | Not mentioned | Peanut shell pellets, corn cobs, wood chips | 31.4±1.2 for peanut shell pellets, 27.1±0.9% for corn cobs and 23.3±0.7% for wood chips. |
Desale, 2019 | Forced draft | Experimental | India | Stainless steel | Neem stalk | 36.47% |
Getahun et al., 2018 | Natural and forced draft | Experimental | Ethiopia | Not mentioned | Charcoal | 22.7% and 25% for natural draft and forced draft respectively. |
Ndindeng et al., 2019 | Rua rice husk stove (RRHS), Viet rice husk stove (VRHS), Paul Oliver 150 rice husk stove (PO150), Paul Olivier 250 rice husk stove (PO250) and Mayon rice husk gasifier stove (MYN) | Experimental | Sub-sahara africa | Stainless steel and cast iron | Rice husk | 11% for MYN gasifier while 30% for PO150 and 20% for other stoves. |
Sakthivadivel et al., 2019 | Advanced micro | Experimental | Not mentioned | Carbon steel | Coconut shells, tamarind pellet and Prosopis juliflora | 36.7 ± 0.4%, 37 ± 0.4% and 38 ± 0.4%, for coconut shells, Prosopis juliflora and tamarind seed pellets, respectively. |
Punnarapong et al., 2017 | Premixed producer gas burner with a swirl vane | Experimental | Thailand | Ceramic fiber and steel sheet | Charcoal | 84 – 91% |
Sakthivadivel & S. Iniyan, 2017 | Fixed bed advanced micro | Experiment | India | Carbon steel | Biomass fuels like coconut shells, prosopis Juliflora and wood pellets | 36.7%, 36% and 38.5% for coconut shell, Prosopis Juliflora and wood pellets, respectively |
Wamalwa et al., 2017 | Micro | Experimental | Kenya | Not mentioned | Saw dust pellets | 36% |
Ahmad et al., 2016 | Top lit up-draft (TLUD) | Experimental | China | Not mentioned | Wood char, rice husk, corn cob, nut shell pellets and corn straw briquette | 17.8%, 16.47%, 14.38%, 12.38% and 10.86% for woodchar, rice husk, corncob, and nut shell pellets and corn straw briquette, respectively. |
Chen et al., 2016 | Chinese three forced-draft | Experimental | China | Not mentioned | Pellets made with cornstalk and cow dung | 16% to 43% |
Narnaware & Pareek, 2016 | Downdraft | Experimental | Not mentioned | Mild steel | Mango (magnifera indica), babul (prosopis julifera) and nim (azadirachta indica) wood | 36 to 39%, |
Panwar and Rathore, 2015 | General gasified | Experimental | India | Mild steel | Biomass (Prosopis juliflora) | 36.38% |
Balakumar et al., 2015 | Forced draft micro | Experimental | India | Not mentioned | Juliflora wood and Coconut shell | for high power hot and cold start 28% and 30% for coconut shell and 27% and 28% for juliflora wood. |
Kumar et al., 2015 | Chinese model (HX-20) updraft institutional | Experimental | Nepal | Not mentioned | Wood chips, rice husk and pellet | 17.76%, 15.51% and 19.91% for wood chips, rice husk and pellet |
J.N. Nwakaire & B.O. Ugwuishiwu, 2015 | Natural cross draft | Experimental | Sub-saharan africa | Mild steel | Rice husk briquette | 21.10% |
Carter et al., 2014 | Chinese general gasified | Experimental | China | Not mentioned | Processed (pelletized) biomass | 22 to 33%. |
Shahi et al., 2014 | General gasified | Experimental | Nepal | Not mentioned | Pinusroxburgii (Salla) wood | 34% |
Tryner et al., 2014 | Natural-draft semi | Experiment | Not mentioned | Steel sheet | Corn cobs and wood pellets | 42% |
Ojolo et al., 2012 | Inverted downdraft | Experimental | Nigeria | Not mentioned | Biomass wood shaving | 10.6%. |
Panwar & Rathore, 2008 | General gasified | Experimental | India | Mild steel | Babul wood and gas | 26.5% |
From the literature search, this review identified different types of gasified cooking stoves wherein modification and improvement were applied. Based on the findings from Table 2 the identified gasified cooking stoves are summarized in few categories, which are:
1. Downdraft gasified stove: reverse-downdraft, inverted downdraft and biomass downdraft
2. Natural draft gasified stove: Natural draft and Natural cross draft
3. Forced draft gasified stove: forced draft, forced-draft pellet-fed semi gasifier, forced draft with separate secondary and primary air fans
4. Micro gasified stove: fixed bed advanced micro, advanced micro
5. Updraft gasifier cook stove: top-lit updraft (TLUD), Portable Top-Lit Up Draft, top-lit updraft (TLUD) with remote burner and fuel reactor, Chinese model (HX-20) updraft institutional
6. General gasified cooking stove: biomass, Chinese, biochar
7. Others: producer gas stove with bluff-body shape in burner, rice husk gasifier stove
The percentages of selected publications on the gasified cooking stoves are presented in Figure 3. The figure shows that the maximum articles worked on general gasified cooking stoves was 23%, while only 12% articles performed investigation on micro, and other gasified cooking stoves. Due to the easy design consideration and fabrication most of the studies considered general gasified cooking stoves for their investigation.
Most of the identified articles on different gasified gas stoves are conducted in Asian and African continents as due to energy security and crisis people in these continents for which people of these continents mainly depend on the biomass fuel driven cooking system. Country wise identified published articles from Table 3 are presented in Figure 4. Among the selected articles 71% mentioned their study location. The figure shows 11 different countries from Asian and African continent where the investigation on gasified cooking stoves were conducted. The figure also highlights that 21% published articles performed their studies in India, which is the highest while the lowest study was performed in Thailand, which was only 3%. The design, configuration and burning fuels for any cooking stoves usually develop and investigate based on the geographical locations, climate, environment and materials availability. Therefore, this finding will help researchers, organizations and government to investigate and implement this type of cooking stoves based on the geographical location so that the adoption rate of the research can increase.
Cast iron, mild steel, metal, ceramic fiber, steel sheet, carbon steel and stainless steel were mainly used to make gasified cooking stoves. Among the selected articles for the current review, only 60% articles addressed the materials they used to fabricate their experimental gasified stove. The usage percentages of these materials in the published articles are presented in Figure 5. The figure shows that 15% published articles used mild steel which is the highest while 3% used ceramic fiber which is the lowest. The availability of mild steel in the investigated locations and higher thermal properties of stainless steel for cooking devices are the key reasons for applying it in production.
The fuels used in the cooking stoves are categorized in four types from the Table 2 and presented in Figure 6. The categories are wooden fuel, animals manure, cereals, charcoal and others. However, wooden fuels are classified in seven types, which are pellets, cassava peel, coconut shell, sized, shavings, chip and sawdust. Among the fuels wooden pellets fuels were used maximum. Peanut shell, cornstalk and cow dung, from pine patula, saw dust pellets, tamarind pellet, wood pellets and rice hull pellets are identified as wooden pellets fuels from selected articles. Moreover, Babul wood (Prosopis Juliflora), mango (magnifera indica), babul (prosopis julifera) and nim (azadirachta indica) wood, eucalyptus, bamboo and pinusroxburgii (Salla) wood are identified as sized wooden fuels. The rice husk, wheat straw and corncobs are categorized as cereal fuels while gas and briquettes are categorized in other types. In briquette fuels rice husk, sawdust-cow dung and corn straw are identified. This finding highlights the potential fuels to run a gasified cooking stove through which general people and research will be benefited.
The overall thermal performance of different gasified cooking stoves from Table 1 is identified 5.88% to 91% depends on the design and burning fuels. The thermal performances of the cooking stoves usually determine by using three approaches named water-boiling test, control cooking test and kitchen performance test. The overall thermal performance of different gasified cooking stoves obtained from selected studies is presented in Figure 7 and Table 4. Figure 7 shows that natural draft semi gasified cooking stove provide the highest overall thermal performance which was 42% while Mayon rice husk gasified stoves shows the lowest performance which was 11%. In the meantime, the overall thermal performance of stove was presented as range in the literature therefore this performance is summarized in Table 5. Table 5 shows that premixed producer gas burner with a swirl vane stove provided the highest overall thermal performance range which was 84% to 91% and updraft gasified stove provided the lowest performance which was 5.88% to 8.79%. This overall thermal performance of the stoves usually varied due to the design and fuels applied in the experimental tests.
Due to the different mechanical properties such as fuel consumption rate, calorific value, heating rate and fire point different cooking fuels provided different thermal performance presented in Table 3. To understand the insight of the thermal performance of different stoves for different cooking fuels a summarization table is created. The Table 5 presents the overall thermal performance for some cooking fuels that are directly mentioned in Table 1. From Table 5 it can be seen that wood pellets provided the highest thermal performance and corn straw briquette provided the lowest. The overall thermal performance of wood pellets was 38.5% and corn straw briquette was 10.86%.
In this current literature review the overall thermal performance of different gasified cooking stoves were explored. For this purpose, available literature from past 14 years from 2008 to 2022 were search by using different search strings and after screening a total of 28 articles were selected for this literature review. The key findings from the review are as follows:
i. Maximum studies on gasified cooking stoves were conducted on 2019, which was 18%, and the least minimum researches were conducted on 2012, which was only 4%. From the beginning to the mid of the current year 2022 almost 14% studies were identified from the selected literature which reflects that the investigation demand on gasified cooking stoves is recently also in high priority to researcher.
ii. The identified gasified cooking stoves from literature are classified in six groups named downdraft, updraft, natural draft, forced draft, micro, general gasified and others whereas the maximum articles worked on general gasified cooking stoves, which was 23%.
iii. 21% published articles on gasified cooking stoves performed their studies in India, which is the highest while the lowest study was performed in Thailand, which was only 3%.
iv. 15% published articles used mild steel to make gasified stove, which is the highest while only 3% used, ceramic fiber, which is the lowest.
v. The identified cooking fuels for gasified stoves are classified in four group which are wooden fuel, animals manure, cereals, charcoal and others whereas wooden fuel was applied most of the studies.
vi. The overall thermal performance of different gasified cooking stoves was 5.88% to 91% depends on the design and burning fuels. The premixed producer gas burner with a swirl vane stove provided the highest overall thermal performance range, which was 84% to 91%, and the updraft gasified stove provided the lowest performance, which was 5.88% to 8.79%.
vii. Among the coking fuels, the wood pellets provided the highest thermal performance and corn straw briquette provided the lowest for gasified cooking stove. The overall thermal performance of wood pellets was 38.5% and corn straw briquette was 10.86%.
The review recommends to analysis the impact of pollution rate of the identified gasified stove on women and children health. Moreover, the adoption rate among general, economic sustainability and lifecycle analysis of the identified gasified stoves can be more valuable for our community.
All data underlying the results are available as part of the article and no additional source data are required.
Figshare: PRISMA checklist and flowchart for ‘Thermal performance of gasifier cooking stoves: A systematic literature review’, https://doi.org/10.6084/m9.figshare.21747020.v2 (Uddin et al., 2022).
Data are available under the terms of the Creative Commons Zero “No rights reserved” data waiver (CC0 1.0 Public domain dedication).
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Are the rationale for, and objectives of, the Systematic Review clearly stated?
Partly
Are sufficient details of the methods and analysis provided to allow replication by others?
No
Is the statistical analysis and its interpretation appropriate?
Not applicable
Are the conclusions drawn adequately supported by the results presented in the review?
No
Competing Interests: No competing interests were disclosed.
Reviewer Expertise: Advanced Energy Systems, Carbon Negative/Carbon Neutral Hydrogen, Blue Hydrogen, Green Hydrogen, Advanced Power Cycle, Gasification Systems, High speed Flow dynamics, High Pressure Combustion, SCO2 power cycles, High Turbulence Combustion, Digital Engineering, Digital Twin, Smart Grid, Microgrid, V2G, V2L , V2H, V2X, Digitally Interconnected Energy Infrastructure, CFD, FEA. Experimental Thermo-fluids
Are the rationale for, and objectives of, the Systematic Review clearly stated?
Yes
Are sufficient details of the methods and analysis provided to allow replication by others?
Partly
Is the statistical analysis and its interpretation appropriate?
I cannot comment. A qualified statistician is required.
Are the conclusions drawn adequately supported by the results presented in the review?
No
Competing Interests: No competing interests were disclosed.
Reviewer Expertise: Mechanical Engineering, Solid Mechanics
Alongside their report, reviewers assign a status to the article:
Invited Reviewers | ||
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