A Study on Combustion Heats of Combustible Solid Wastes and Their Binary Mixtures

• Main Authors: Yun-Chun Cheng, 鄭云淳
• Other Authors: Jia-Twu Lee
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/92883909236301114961

碩士 === 國立屏東科技大學 === 環境工程與科學系 === 92 === Heating values including higher heating value and lower heating value mean the heats of combustion per unit weight of municipal solid wastes (MSW). Lower heating value of MSW is a basic and important design parameter of incineration system. In 2001, about 61129 tons (21.10%) of wasted plastics in MSW were found in Taiwan. However, it is rare to see relative literatures concerning the studies of the relationship between heating values and mixing ratios of pure matter. In this paper, authors will investigate the effect of mixing ration of plastics on the heating values of their mixtures. An empirical equation regarding elemental compositions of these pure matters will be obtained from a Microsoft Visual Basic 6.0 based program. Results point out that most binary mixture of plastics show a linear combination of their identical heating values. Furthermore, PBT/PET, PP/PS, PET/PVC, PEO/PVC and PPO/PVC show a positive deviation relation while PET/PEO and PP/HDPE show a negative deviation relation. Binary mixture of paper and plastic also shows a deviation from linear addition. Heating value behaviors of these pure matters could be a design parameter for preparing the wasted plastics refuses derived fuel, WRDF.