Waste biomass as a promising source of energy in Vietnam, Southeast Asia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027031%3A_____%2F21%3AN0000089" target="_blank" >RIV/00027031:_____/21:N0000089 - isvavai.cz</a>

Result on the web

<a href="https://www.vuzt.cz/publikace-a-vysledky/vyhledavani-vysledku/" target="_blank" >https://www.vuzt.cz/publikace-a-vysledky/vyhledavani-vysledku/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Waste biomass as a promising source of energy in Vietnam, Southeast Asia

Original language description

Due to economic growth and population increase, Vietnam faces a tremendous rise in energy consumption. From being an energy exporter during 1990 2010, Vietnam has become dependent on energy imports, although rising energy consumption was anticipated. Primary energy consumption in rural Vietnam relies strongly on biomass, representing the country largest renewable energy source. However, in total final energy consumption, modern bioenergy represents only about 12,4%. Thus, this study main objective was to investigate the energy potential and production quantities and fuel properties of the foremost biomass residues in Vietnam, like paddy rice and sugarcane, with an annual production of more than 44 million tons nearly 18 million tons, respectively. The production of these crops has been increasing in recent years, which was indisputably associated with the growing amounts of residues (i.e., rice straw, rice husks, sugarcane bagasse, sugarcane trash) that are unused and contributes adversely to the environment and sustainable farming in general. Residual biomass energy potential was calculated based on the total crop yield, residues ratio and calorific value, and it was found that the total annual energy yield of rice and sugarcane residues is about 443 TWh (416 TWh and 27 TWh accordingly), which is equal to the energy consumption of about 92 million average Vietnamese households. Moreover, a complex laboratory analysis of biomass properties was conducted. The research concluded that rice residues, especially rice straw, offer an alternative material for energy use, which meets the requirements of minimizing CO2 emissions, i.e., renewable energy source and fulfils the main preconditions, i.e., material in vast concentrations, readily available and on a dry basis. From the point of view of logistics and energy density improvement, the most appropriate option is the production of briquettes or pellets. The energy use of sugarcane residues again meets the requirement of significant amounts in large concentrations in one place. However, drying of sugarcane biomass is necessary to enhance energy potential and more efficient application. The present research revealed the potential and abundancy of leftover biomass and detailed the situation throughout the whole country.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

<a href="/en/project/TF06000004" target="_blank" >TF06000004: Advanced hot-water boiler system with low-emission automatic burners for standardized solid fuel from residual biomass</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů