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压缩空气动力应用的发展现状及展望 被引量:20
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作者 贾光政 王宣银 吴根茂 《中国机械工程》 EI CAS CSCD 北大核心 2004年第13期1190-1194,共5页
提出压缩空气不仅可以作为工作介质 ,而且可以储存能量作为一种动力源。阐述了常规气动伺服控制系统研究的现状 ,认为以PWM和PCM调制方式为主的开关伺服控制技术仍然是研究的热点。说明了气动系统节能必须重视压缩空气生产、处理、储存... 提出压缩空气不仅可以作为工作介质 ,而且可以储存能量作为一种动力源。阐述了常规气动伺服控制系统研究的现状 ,认为以PWM和PCM调制方式为主的开关伺服控制技术仍然是研究的热点。说明了气动系统节能必须重视压缩空气生产、处理、储存、分配与控制等各个环节 ,并需根据具体情况采取合适的节能技术和方法。综述了高压气动系统和元件的研究概况 ,指出高压化是气动系统发展的一个方向。提出绿色气动动力系统 。 展开更多
关键词 压缩空气 气动伺服控制 节能气动系统 高压气动系统 绿色气动动力系统
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Evaluation of the Thermodynamic Performance of the Traditional Passive Systems
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作者 Antonio De Vecchi Simona Colajanni +2 位作者 Annalisa Lanza Volpe Miriam Noto Annalisa Palermo 《Journal of Energy and Power Engineering》 2013年第5期850-857,共8页
The energy consumption of buildings in urban areas is one of the greatest source of energy wasting and, consequently, ofincreasing of CO2 emission. Research is currently focused on the reduction of this consumption th... The energy consumption of buildings in urban areas is one of the greatest source of energy wasting and, consequently, ofincreasing of CO2 emission. Research is currently focused on the reduction of this consumption through the use of passive air-conditioning systems, that can be integrated with conventional systems and give rise to the so-called hybrid systems. Historically, these passive systems were developed in the Mediterranean and Middle East area. The research approach on this topic involves the application of design strategies and the development of computational tools and control systems. The development of the hybrid systems is the result of the synergy between current scientific knowledge, advanced manufacturing and information technology. In this study, a modular housing system has been investigated under different conditions. Simulations have been repeated, in order to identify the configuration that provides the highest indoor comfort. The analysis of the different conditions has been carried out using a CFD (computational fluid dynamic) software. The paper shows the results developed by the Dipartimento di Architettura of the Universit^t di Palermo in the analysis of the natural ventilation effect on the indoor comfort. 展开更多
关键词 BUILDING CFD simulation passive systems energy saving.
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