A Solar-Energy Method for Reducing Coffee-Drying Costs
A Solar-Energy Method for Reducing Coffee-Drying Costs
复制标题
降低咖啡干燥成本的太阳能方法
DOI：
--
复制
发表时间：
1963
期刊：
影响因子：
--
通讯作者：
A. L. Phillips
中科院分区：
文献类型：
--
作者：
A. L. Phillips
1.最近开发的现代咖啡加工设备具有设备成本低和劳动力需求减少的特点，但是当完全使用电力来加热干燥空气时，操作起来有些昂贵。2.考虑了利用太阳能作为热源的问题，因为以前关于利用太阳能干燥其他作物的研究表明，太阳能集热器也可以成功地用于干燥咖啡。3.建造并运行了一个采用太阳能集热器的实验性处理设施，事实证明，通过使用太阳能可以降低运营成本。4.得出的结论是，其他咖啡生产商可以经济地使用太阳能集热器，以减少电力成本。干燥设施的设计应遵循以下原则：A.为每年生产的每100公斤咖啡提供10平方英尺的干燥箱。B。安装一个风扇，它将提供100立方英尺。每平方英尺的垃圾箱面积对1英寸水尺的静压。C.根据图1所示的规格建造太阳能集热器。D.安装电加热元件，提供高达5，000 W的功率。每年处理的每100磅。
1. Modern coffee-processing facilities that have been developed recently have provided the features of low equipment costs and reduced labor requirements, but are somewhat expensive to operate when electric power is used entirely to heat the drying air. 2. The use of solar energy as a heat source was considered, since previous research where solar heat was used to dry other crops indicates that solar heat-collectors could also be used successfully for drying coffee. 3. An experimental processing facility which employs a solar heat-collector was built and operated, and it has been demonstrated that worthwhile reductions in operating costs can be achieved through the use of solar energy. 4. It was concluded that other coffee producers could economically use solar heat-collectors to reduce electricity costs. Drying facilities should be designed using the following as guides: A. Provide 10 square feet of drying-bin area for each 100 hundred-weights of coffee produced yearly. B. Install a fan which will deliver 100 c.f.m. per square foot of bin area against a static pressure of 1-inch water gage. C. Construct the solar heat-collector according to the specifications presented in figure 1. D. Install electric heating elements which provide up to 5,000 w. for each 100 hundred-weights processed yearly.