Combined Heat and Power System with Advanced Gasification Technology for Biomass Wastes
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The results obtained from an advanced gasification system utilizing high temperature steam are presented here. The results showed successful demonstration of clean syngas production having high calorific value fuel (~10 MJ/m3N) using woody biomass wastes in a downdraft type gasifier. The gasification capacity of the plant on dry basis was 60 kg/h. The syngas produced can be utilized in an absorption type chiller for air conditioning. This advanced gasification technology allows one to transform wastes to clean energy at local production sites without any environmental impact and expensive waste transportation costs. The experience gained from the demonstration plant allows one to implement to other industrial applications for use as a decentralized unit and obtain clean syngas for local use. The demonstration conducted here shows that the system is favorable for onsite use of compatible combined heat and power (CHP) system including light oil supported diesel engine power generator. The biomass waste fuel from a lumber mill factory was used in this study. The factory handles a wide forests area of about 50 ha and produces about 2,500 m3/year of wood chips from thin out trees and waste lumbers. This translates to a maximum 110 kg/h of wood chips that can be fed to a gasifier. The syngas produced was used for the combined heat and power system. Local use of biomass for fuel reforming reduces the cost of collection and transportation costs so that a sustainable business is demonstrated with profit from the generated electricity and thermal energy. The cost structure incorporates both the depreciation cost and operation cost of the system. Thermal energy from hot water can be used for drying lumbers and wood chips in a cascade manner. The drying process can be adopted for enhancing its productivity with increased variability on the quality of lumber. The results show that the combined heat and power system (CHP) offers good profitable business with much wider application of this technology to a wide range of low grade solid fuels, including plastics, biomass, sewage sludge, and high ash content low grade coals.
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- Combined Heat and Power System with Advanced Gasification Technology for Biomass Wastes
- Book Title
- Cleaner Combustion and Sustainable World
- Book Part
- Part V
- pp 829-838
- Print ISBN
- Online ISBN
- Springer Berlin Heidelberg
- Copyright Holder
- Springer-Verlag Berlin Heidelberg & Tsinghua University Press
- Additional Links
- High temperature steam
- Woody biomass
- Decentralized unit
- CHP system
- eBook Packages
- Editor Affiliations
- ID1. Institute of Thermal Engineering, Tsinghua University
- ID2. Institute of Thermal Engineering, Tsinghua University
- Author Affiliations
- 1. Nippon Furnace Kogyo Kaisha Ltd, 2-1-53, Shitte, Tsurumi-ku, Yokohama, Japan
- 2. Department of Mechanical Engineering, University of Maryland, College Park, MD, 20742, USA
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