## 太阳能直线往返驱动装置设计

Title    Solar Linear Reciprocating Driving Device
Abstract
Solar thermal technology has been used to design a new type of solar linear reciprocating driving device for low-speed moving fields. Solar energy absorbed by the working fluid at different locations which lead to uneven heating puts weight on forming temperature differences. Then the device has been driven to move by differential pressure caused by working fluid based on the principle of expanding with heat and contracting with cold. According to the process of ideal Stirling cycle, the actual cycle of the device have been analyzed and cycle power formula has been deduced based on Schmitt ideal model too. The influence of different parameters on power can be calculated and cycle work curve with parametric has drew by software. The components in the device have been designed the size under the premise of high cycle power and modeled by software. In addition, through the machine tools and other industrial equipment, parts of the device are processed accurately and prototype of the solar linear reciprocating driving device is fabricated. The experimental system is based on the designed prototype. The analysis of concentrating device and circulating refrigerant was carried out. The prototype will be tested under the experimental conditions and the heat loss of the system has been calculated.

Keywords  Solar energy; low speed motion; photo-thermal conversion; linear reciprocating driving

1 绪论1
1.1 研究背景及意义1
1.2 国内外研究进展2
1.3 本设计拟研究的主要内容3
2 太阳能直线往返驱动装置理论基础5
2.1 斯特林循环5
2.2 史密特循环6
2.3 实际循环过程7
2.4 本章小结7
3 太阳能直线往返驱动装置设计与研制8
3.1 参数分析8
3.2 结构设计11
3.3 制作与加工16
3.4 本章小结17
4 太阳能直线往返驱动装置实验与分析18
4.1 实验系统设计18
4.2 实验过程分析21
4.3 系统热损失计算及分析24
4.4 本章小结26

1  绪论
1.1  研究背景及意义
随着社会发展，煤、石油等常规能源的无节制使用使一次能源日趋减少，同时对生态环境造成破坏，人类生存空间遭受极大威胁，能源枯竭的问题再一次摆在人类面前[1,2]。因此，人们迫切需要清洁可再生的新能源来替代常规能源，在未来社会的发展中新能源必须占据主要能源产出的位置，这就使得寻找新能源成为当前社会主要研究内容之一。
近年来，太阳能产业逐渐成为各国大力扶持的产业。太阳能是一种可无限使用的清洁能源，据统计，太阳40分钟内照射到地球上所释放的能量相当于全世界一年的能源消耗量[3] 。在中国，太阳能也成为了能源战略的主要内容之一[4]。太阳能发电分为光伏发电和光热发电两种形式，光伏发电由于成本高效率低的弊端，并且由于研发能力和技术限制在能源市场上占比较小；而光热发电在十二五期间被国家放在鼓励类目录中，并占据突出位置，这说明国家将在产业政策上重点扶持太阳能光热发电和与其有关的设施制造。太阳能光热转换的基本原理是通过太阳能聚光装置，通过反射、吸收等方式将太阳辐射集中起来，并转换成足够高的温度，加热水或空气[6]。本课题主要使用太阳能光热转换原理，针对低速运动领域，设计一种太阳能直线往返驱动装置，直接利用工质在不同位置上吸收太阳能的差异导致加热不均匀，出现温度差异，然后根据工质热胀冷缩形成的差压作为动力源驱动装置进行运动。 太阳能直线往返驱动装置设计:http://www.lwfree.cn/zidonghua/20181116/25931.html
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