C Sawatdeenarunat
Asian Development College for Community Economy and Technology, Chiang Mai Rajabhat University, Chiang Mai, Thailand

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The Combustion Characteristics of Biomass Stove with Preheated-Air by Porous Medium P Laodee; W Setthapun; C Sawatdeenarunat
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 3 No. 1 (2019)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.984 KB) | DOI: 10.29165/ajarcde.v3i1.13

Abstract

This study aims to characterize the combustion of the biomass stove filled with a porous medium for air pre-heating to enhance the biomass decomposition. An equivalence ratio, one of the important parameters for the combustion, was investigated to evaluate the completeness of the combustion process. Thermal efficiency was used as the indicator to reflect the performance of the biomass stove. Which was divided into two parts namely the pre-combustion (PCC) and the combustion chamber (CC). The CC volume was 28 liters for fuel storage, and it was insulated for reducing heat loss. The stove was made of 2 mm steel plate and the porous medium was a round-shape ceramic with a diameter of 10 mm. The boiling test was performed using corn cobs as a single solid fuel to boil water in the vessel. The temperature of the stove was measured using a thermocouple Type-K and a data recorder was used to collect the experimental data. The airflow rate was determined using an airflow meter and the fuel consumption rate was calculated using the aforementioned experimental data. Finally, the designed biomass stove will be demonstrated at the community to simultaneously enhance the community-scale energy and reduce the environmental issues.
Economic Analysis of Applying Biomass Stove to Produce Hot Water Serving Child Development Center: The Case Study Of Omkoi District, Chiangmai, Thailand R Chulasak; W Phothachareon; C Sawatdeenarunat
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 3 No. 1 (2019)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.811 KB) | DOI: 10.29165/ajarcde.v3i1.16

Abstract

This research aims to perform the techno-economic feasibility of the applied hybrid biomass stove to produce hot water for serving Child Development Center (CDC) in Omkoi District, Chiang Mai, Thailand. The hot water generated from the stove could help to decrease LPG usage and enhance household economics. Many activities in CDC (i.e., children showering during the winter season, cloth washing, and utensils cleaning among others) require hot water to prevent the contamination of harmful germs which could cause many diseases such as diarrhea in young children. Presently, Asian Development College for Community Economy and Technology, Chiang Mai Rajabhat University (adiCET) has installed the hybrid stove to the in Omkoi district. The biomass stove could generate 90 °C hot water using plant/agriculture waste as the fuel. However, the economical parameters (i.e., Payback Period, Net Present Value and Internal Rate of Return) could strengthen the technology. The results from this study could be used as one of the guidelines for policymakers to design the appropriate programs for enhancing the CDC using the waste-to-energy concept.