Performance assessment with Pinch technology and integrated heat pumps for vaporized concentration processing

in Sciences Citation Index(SCI), 科學引文索引資料庫(SCI)
標題Performance assessment with Pinch technology and integrated heat pumps for vaporized concentration processing
出版類型SCI(Sciences Citation Index)
出版年度2012
AuthorsChi-I Tuan, 段紀義, Shyu 葉一隆, Chi-Jen Chen 陳啟仁, & Ting-Chien Chen 陳庭堅
開始頁226
頁數8
出版日期2012 / 2
其他編號0000
中文摘要

The enhancement of energy use efficiency is an urgent issue. In this study, Pinch technology (PT) was used to assess the optimum energy use in a process. A heat pump (HP) was combined with a three-effect vacuum evaporator (TEVE) in an old and traditional food factory to recover and reuse waste heat. The Base case evaluated just the TEVE system. Three other cases included using the TEVE with: PT assessment alone (Case-1), PT with a conventional HP (CHP) (Case-2) and PT with a mechanical vapor recompression technology called advanced HP (AHP) (Case-3). Case-2 and Case-3 not only enhanced the energy use efficiency and reduced energy consumption, but also decreased waste heat emissions, which lowered the environmental heating load. When the PT was combined with the AHP (Case-3), the results were unsurpassed. The heat of demand and emission were reduced by 15.7 (2.15  106 kWh/y) and 22.6% (3.10  106 kWh/y), respectively compared to the Base case. The results imply that if industry in Taiwan
used this system to promote energy use efficiency, the potential energy savings would be equal to 1.9 months of heat energy by burning fuel oil. In addition, the reduced heat discharge potential was 2.44  107 kWh/y, which could also reduce the environmental heating load.

期刊名稱Journal of the Taiwan Institute of Chemical Engineers
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