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基于拉瓦尔管的抛网器设计
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作者 陈向友 《盐城工学院学报(自然科学版)》 CAS 2013年第3期35-37,共3页
捕鱼抛网器针对传统捕鱼抛网作业繁杂、劳动强度大、效率低下等缺点而设计,制定了基于拉瓦尔管的捕鱼抛网器的整体设计方案,包括捕鱼抛网器的总体设计,拉瓦尔管、抛射头、发射管、储气罐、可调节支架、发射球阀的结构设计;通过三维软件... 捕鱼抛网器针对传统捕鱼抛网作业繁杂、劳动强度大、效率低下等缺点而设计,制定了基于拉瓦尔管的捕鱼抛网器的整体设计方案,包括捕鱼抛网器的总体设计,拉瓦尔管、抛射头、发射管、储气罐、可调节支架、发射球阀的结构设计;通过三维软件对作品结构性能进行了模拟分析,实验结果表明该抛网器抛射距离最远可达100m。 展开更多
关键词 抛网器 拉瓦尔管 储气罐 球阀
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Study of a Parabolic Trough Adequate for the CERER Site (Dakar-Senegal)
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作者 Awa Mar Serigne Thiao +1 位作者 Cheikh Mbow Issakha Youm 《Journal of Energy and Power Engineering》 2016年第5期275-282,共8页
This study presents the modeling of a parabolic trough solar collector. The main objective is to show the influences of the parabolic trough sensor effective efficiency (concentrator optical efflciencies of transmiss... This study presents the modeling of a parabolic trough solar collector. The main objective is to show the influences of the parabolic trough sensor effective efficiency (concentrator optical efflciencies of transmission, reflection, geometrical and the receiver absorption coefficient), of its length, of the mass flow rate on temperatures distributions of the heat fluid and the receiver and on thermal global efficiency (solar conversion efficiency into energy usable). The atmospheric parameters are those of Senegal in April. A prototype existing in the CERER (Center of Studies and Research on Renewable Energies) (Dakar-Senegal) is given as example of application. 展开更多
关键词 Parabolic trough solar collector RECEPTOR EFFICIENCY temperature fluid.
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