Combustion enhancement using induced swirl

Guillaume, D. W.; LaRue, John C.

doi:10.1007/bf00190599

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…Furthermore, the cookstove took more time to cook the food than the three-stone fire. Guillaume and LaRue (1995) experimentally verified that the swirl effect improved the combustion of volatiles by increasing air-fuel mixing and the residence time of the reactant gasses. Bhandari et al (1988) incorporated four different types of swirling device in the throat area of cookstove combustion chamber and found that the strong swirling effect had increased the cookstove's efficiency to about 42 %.…”

Section: Introductionmentioning

confidence: 77%

Modifications in Improved Cookstove for Efficient Design

Verma

Prasad

Vijay

et al. 2016

Springer Proceedings in Energy

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In India, majority of the population (around 85 %) living in rural areas still use traditional biomass fuels in form of wood, agriculture residues, animal dung, etc., for meeting their energy needs. These fuels are burnt in mud (traditional) cookstoves for cooking and other thermal applications. Inefficient burning of biomass in traditional cookstoves poses serious health hazards. Experiments have been carried out on low cost, improved forced draft cookstove, and modifications were made to increase the thermal efficiency and to lower smoke emissions by varying parameters such as height of grate from base, variations in air flow rate, height between top plate and vessel, etc., without making major changes in the structure of cookstove such as diameter and air inlet points. Modification in air flow rate leads to increased thermal efficiency with low smoke emissions. All measurements were made according to the Bureau of Indian Standards (IS 13152: Part 1-Portable Solid Bio-Mass Cookstove (Chulha).

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Section: Introductionmentioning

confidence: 77%

Modifications in Improved Cookstove for Efficient Design

Verma

Prasad

Vijay

et al. 2016

Springer Proceedings in Energy

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“…The chemical reaction rate plays an important role in the formation of precursors -Polycyclic Aromatic Hydrocarbon (PAH). The formation of the ring structure and acetylene from the fuel plays a key role in particle formation and build up [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

New Methods to Evaluate Diesel Smoke from Inspection/Maintenance Vehicles Using Integration of Smoke Emissions over a Measurement Cycle of Snap-Acceleration Test at no Load

Lee

2013

AMM

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Each country regularly inspects smoke emissions from diesel vehicles. The most common method is a snap acceleration test at no load. Currently, the representative smoke value of a tested vehicle is decided by averaging three peak values which correspond to three consecutive measurement cycles. The biggest problem of the current method of determining the representative smoke of tested vehicles based on the averaging 3 consecutive peak values is that it varies enormously according to how the driver pushes the accelerator. In this study, new methods based on integration were researched to calculate representative smoke values from tested vehicles using the same data obtained by a snap acceleration test at no load. The smoke emissions for each measurement cycle were integrated with respect to time, and the average of the integrated values was obtained. Also, the smoke value of the acceleration range in each measurement cycle was integrated and the average was obtained. The representative value of smoke emissions was analyzed according to both the old and new calculation method. A total of 20 vehiclesof the same model with 2 liter diesel engineswere tested using snap acceleration at no load. It was found that the fluctuation of the representative smoke values of the tested vehicles was reduced when the average of the integrated values over either one measurement cycle or the acceleration range was used as the representative value.

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“…It also improves combustion of volatiles by increasing air-fuel mixing and the residence time of the reactant gases [52,53]. Bhandari et al [47] found that the inclusion of twisted tapes improved the efficiency of an experimental cookstove.…”

Section: Proposed Improvementmentioning

confidence: 99%

Development of a fuel efficient cookstove through a participatory bottom-up approach

2013

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Background: Since 1940s, other than a few success stories, the outcomes of efforts of development and dissemination of improved cookstoves a have not been so fruitful. This paper presents a bottom-up approach that was successfully implemented to develop a fuel-efficient cookstove in a tribal village that has resulted in a substantial reduction in firewood consumption. Method: The approach ensured people's participation at multiple stages of the process that started from project selection by capturing people's needs/desires and studying the existing cooking practice to understand its importance in the local context. The performance of the cookstoves was evaluated by modifying a standard Water Boiling Test to accommodate the existing cooking practice. The improvement of the cookstove was achieved by fabricating a simple twisted tape assembly that could be placed on it without changing the existing cookstove. Results: The optimization of the twisted tape device was first carried out in the laboratory and then implemented in the field. The field-level tests resulted in reduction of firewood consumption by around 21% which is a substantial improvement for such a device. It was also found that the improvement reduced soot b accumulation by around 38% and time of cooking preparations by around 18.5%. Conclusion: Overall, a bottom-up and participatory process that not only addressed people's perceived needs but also ensured no changes in the existing cooking practice while providing an easy, low cost (around US$1.25) c , and locally manufacturable solution led to a highly successful improvement in the local cookstove that was accepted easily by the villagers.

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Combustion enhancement using induced swirl

Cited by 8 publications

References 8 publications

Modifications in Improved Cookstove for Efficient Design

Modifications in Improved Cookstove for Efficient Design

New Methods to Evaluate Diesel Smoke from Inspection/Maintenance Vehicles Using Integration of Smoke Emissions over a Measurement Cycle of Snap-Acceleration Test at no Load

Development of a fuel efficient cookstove through a participatory bottom-up approach

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