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Performance and Economic Analysis of Mulberry Paper Handmade Dryer by Using Downdraft Gasifier

机械工程与自动化：英文版, 2013, Vol.3 (8), p.507-516

ISSN: 2159-5275 ;EISSN: 2159-5283

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  • Title:
    Performance and Economic Analysis of Mulberry Paper Handmade Dryer by Using Downdraft Gasifier
  • Subjects: 性能 ; 手工 ; 最佳工艺条件 ; 桑树 ; 气化炉 ; 空气干燥器 ; 经济性分析 ; 质量流率
  • Is Part Of: 机械工程与自动化：英文版, 2013, Vol.3 (8), p.507-516
  • Description: The mulberry paper handmade dryer uses downdraft gasifier, which is a continuous hot air dryer. The downdraft gasifier uses charcoal or wood chip as fuel to produce the producer gas for a dryer heat source. Two steps operation of a dryer as follows： The frst was to reduce mulberry paper pulp moisture by an air vacuum pump; the second was a continuous hot air drying process. The optimum condition drying, the capacity of dryer, the fuel consumption, the drying constant （k） and economics analysis were investigated. It was found that the first step could be to reduce mulberry paper pulp moisture content about 25% and the suitable condition drying was 80 ~C drying temperature, 0.04 kg/s air mass flow rate and 0.29 m/min chain conveyor speed, respectively. The capacity of this dryer was 20 sheets per hour. The quality of mulberry paper product was very good （based on the standard of mulberry paper community 41/2546） and the fuel consumption rate was 5 kg/h （charcoal）. The drying constant was about 0.532933-0.541367 min~ and the drying constant was a function of drying temperature （T）, air mass flow rate （F） and conveyor speed （10 as equation of k（T, F, V） = 0.567494 ＋ 0.000422T- 1.40588F- 0.000205 V （R2 = 0.9254） and the breakeven point of dryer was 0.79 years.
  • Language: English
  • Identifier: ISSN: 2159-5275
    EISSN: 2159-5283
  • Source: Alma/SFX Local Collection
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