Thermo-chemical modelling of a village cookstove for design improvement

Honkalaskar, Vijay; Sohoni, Milind; Bhandarkar, Upendra

doi:10.1080/13647830.2014.921730

Cited by 6 publications

(5 citation statements)

References 24 publications

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“…(6) a log-normal region is assumed near the wall; (7) the convective and viscous diffusion terms are assumed to be negligible in the lognormal region for ε; (8) the Reynolds' stresses are considered to be balanced by the wall shear stresses in the log-normal region; (9) in the log-normal region the production of k is assumed to equal to the dissipation of k; (10) turbulence is assumed to be decaying only with time.…”

Section: Computational Setupmentioning

confidence: 99%

“…Similar one-dimensional models have been developed for a wide variety of cookstoves in recent years. 7,18,19 Pande et al 20 investigated the effect of varying inlet area ratio (ratio of area unoccupied by the fuel at the feed door to the c/s area of the elbow diameter) on the cookstove performance. They used a steady-state non-premixed combustion model to simulate the natural convection in a rocket-type biomass cookstove.…”

Section: Introductionmentioning

confidence: 99%

“…Several modeling techniques have been developed over the years, which simulate by coupling these three zones in different ways. However, all of these techniques can be broadly categorized into two, viz., uncoupled models (models wherein all three zones are simulated individually with separate boundary conditions for each zone) and coupled models (by coupling all the three zones). − Further, in coupled models, there is a possibility of defining the gas-phase combustion either explicitly or implicitly. The detailed biomass combustion simulation is involved in coupled models with a detailed advanced bed model and its coupling with the freeboard and heat transfer region.…”

Section: Introductionmentioning

confidence: 99%

“…Kausley and Pandit validated their model by comparing their numerical results against their experimental results of temporally evolving temperature. Similar one-dimensional models have been developed for a wide variety of cookstoves in recent years. ,, …”

Section: Introductionmentioning

confidence: 99%

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Computational Fluid Dynamic Study of Biomass Cook Stove—Part 2: Devolatilization and Heterogeneous Combustion

Husain

Tiwari

Kataria³

et al. 2020

Ind. Eng. Chem. Res.

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In this study, we have developed a novel model to include the spatial heterogeneity for the combustion of volatiles in the presence of oxygen inside a biomass cookstove (BCS). Three-dimensional computational fluid dynamic simulations of BCS were done to evaluate the dynamics of spatial heterogeneity incurred during biomass combustion. The proposed methodology prescribes the mass release rate of the fuel as a dynamic boundary condition that evolves as per the changing temperature in the void spaces of the packed bed. The temporally evolving mass release rate due to the change in temperatures of the void spaces is calculated iteratively and set as the inlet boundary condition on the particle surfaces using an empirical correlation. The validation studies showed that the timeaveraged outlet temperatures predicted from the model are in good agreement with the experimentally obtained values.

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Section: Computational Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Computational Fluid Dynamic Study of Biomass Cook Stove—Part 2: Devolatilization and Heterogeneous Combustion

Husain

Tiwari

Kataria³

et al. 2020

Ind. Eng. Chem. Res.

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“…Hence, it is essential to identify structures that construct such arrangements (Smith and Seward 2009). The caste 23 system in India can be discussed here as an example of a social arrangement resulting in an 23 Caste is a structured hierarchy that divides Hindus into five categories based on the notions of purity and pollution Jodhka, S. S. (2015). Caste in contemporary India / Surinder S. Jodhka.…”

Section: Linking Capabilities and Cooking With Solid Fuelsmentioning

confidence: 99%

Social constructs of energy poverty and the resulting capability deprivations in rural India

Malakar¹

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This PhD project studies energy poverty in rural India in order to understand its underlying social constructs and effect on people's well-being. A core inspiration for undertaking this research stems from my profound interest in understanding the way in which people's energy demands, energy sources, and services interact with their social systems, such as their day-today routines, established norms, well-accepted traditions, and culture. In so doing, this project aims to contribute towards achieving India's goal to universalise modern energy access to all. Presently, India suffers from longstanding energy poverty, with about 239 million people unconnected to electricity and about 800 million relying on harmful solid fuels for cooking. This study has three objectives: (1) to understand the links between people's livelihood practices and household decisions in relation to energy sources and services; (2) to understand how the energy poor's capabilities are influenced by their choice of energy sources; and (3) to understand the role that social structure has on persistent energy poverty and find out ways to break the energy poverty cycle. This project represents a niche of studies that investigate energy poverty from an undervalued realm of social science. It benefits from an emerging conceptualisation that strongly argues for a research lens that navigates beyond the economic and technological influences of energy systems and unpack the relationship between energy and society. This novel concept acknowledges that demand for energy is not for energy itself, but for undertaking services required by people as members of society. Energy, therefore, is intricately intertwined with social systems that shape people's needs, choices, decisions, and opportunities. To unpack this complex connection between energy and society, this project applies two prominent social theories: the Capability Approach (CA) and Structuration Theory. This research employs a qualitative approach of inquiry. Techniques applied for data collection comprise a set of in-depth interviews, focus group discussions, and observation. These techniques provide valuable groundwork for gathering a subjective understanding of people's life experiences, both individual and collective, values, societal dominations, and energy practices. Fieldwork for the study was undertaken in the Chittoor district in the state of Andhra Pradesh, India.

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