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Volume 9
Journal of Bioremediation & Biodegradation
ISSN: 2155-6199
Biofuel Congress 2018 &
Biomass 2018
September 04-06, 2018
JOINT EVENT
September 04-06, 2018 | Zurich, Switzerland
13
th
Global Summit and Expo on
Biomass and Bioenergy
&
12
th
World Congress on
Biofuels and Bioenergy
Numerical study of the natural -draft flow and heat transfer in a biomass plancha-type cookstove
Alberto Beltrán
1
, Miguel F Moctezuma Sánchez
1
, José Núñez
1
, Elizabeth M Fisher
2
and
Omar Masera
1
1
Universidad Nacional Autónoma de México, México.
2
Sibley School of Mechanical and Aerospace Engineering, Cornell University, USA.
S
tatement of the Problem: Biomass cookstoves are important in the developing world and have room for improvement
since a large percentage of people living in rural areas still satisfy their cooking and heating needs using local biomass
fuels. Different types of biomass cookstove are used around the world and the vast majority involve natural-draft combustion
of wood; big efforts to study their performance from an experimental point of view have been conducted. The purpose of
this study is to model the fluid flow, heat transfer and gas-phase chemical reactions for a natural-draft biomass plancha-type
cookstove that represents a new portable design of the Patsari stove for rural areas in Mexico and to be used for domestic
activities. Methodology: A 3D CFD model is set up in ANSYS Fluent v19, using the module of species transport for modelling
combustion, a turbulence viscous model and energy equation enabled; whereas, the solver configuration is pressure based
type and the simple algorithm is used for steady state solutions. Findings: Power rates in the range of 2.5 and 7.5 kW and two
injection areas of 50 and 100 cm
2
are analyzed. Contours for the flow, temperature and species mass fractions are obtained;
additionally, Nusselt number at the comal surface, air fuel ratio and thermal efficiency are calculated as a function of power rate.
Conclusion & Significance: A better combustion and thermal efficiency for the higher power rate cookstove are observed since
the percentage of volatiles not burned decreases with the power rate. Authors would like to acknowledge SENER-CONACyT
for the financial support through Project 246911.
Recent Publications
1. Palacios-Morales C A, Guzman J E V, Beltrán A, Ruiz-Huerta L, Caballero-Ruiz A, Zenit R (2018) On the maximum
operating frequency of prosthetic heart valves. Biomedical Physics and Engineering Express (BPEX), 4, 047007: 1-6.
2. Núñez J, Beltrán A (2018) On the onset of natural convection in a partially cooled cylinder. Heat Transfer Research, 49 (8):
773-786.
3. Beltrán A, Chávez O, Zaldivar J, Godínez F A, García A, Zenit R (2017) A new model for the computation of the formation
factor of core rocks. Journal of Structural Geology, 97: 189 - 198.
4. Beltrán A(2017) MHD Natural convection in a liquid metal electrode. Applied Thermal Engineering, 114: 1203-1212.
5. Domínguez D R, Beltrán A, Román J J, Cuevas S, Ramos E (2015) Experimental and theoretical study of the dynamics of
wakes generated by magnetic obstacles. Magnetohydrodynamics, 51 (2): 215 – 224.
Biography
Alberto Beltrán has his expertise in numerical simulations of hydrodynamic, thermal and magnetohydrodynamics flows. His recent work on plancha-type cookstoves is
focused on improving the actual designs based on CFD calculations and to compare them with experimental results. He is also interested in renewable energy and grid
scale energy storage systems and their applications. He is the head of the Laboratory for design, modelling and simulations of biomass cookstoves at the CBS CEMIE-Bio
project in Mexico.
albem@iim.unam.mxAlberto Beltrán et al., J Bioremediat Biodegrad 2018, Volume 9
DOI: 10.4172/2155-6199-C1-014