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首页> 外文期刊>International journal of green energy >A NOVEL INTEGRATED DIRECT ABSORPTION SELF-STORAGE SOLAR COLLECTOR
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A NOVEL INTEGRATED DIRECT ABSORPTION SELF-STORAGE SOLAR COLLECTOR

机译：新型集成直接吸收式自存储太阳能集热器

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摘要

The present work introduces a novel integrated solar collector with direct absorption of solar radiation and self-energy storage. The proposed system has compact size without the need for any connecting pipes. The working fluid absorbs the incident solar radiation directly and passes it to the storing fluid container that has been implemented within the core of the novel system. A mathematical model has been presented to describe the thermal behavior of the proposed system. Moreover, an expression has been derived to predict the system efficiency, outlet temperature, and utilized heat transfer. Simultaneously, a comparison of the performance of the novel solar system with that of the conventional solar collector reveals that the performance of the proposed system is much better than that of the conventional collector. The proposed direct absorption collector has a collector efficiency factor, F' = 1 which is 20% more than that of well-manufactured conventional collectors. This yields about 20% increase in the heat removal factors and efficiency of the integrated system as compared with that of the conventional collectors over the entire range of overall heat loss coefficients and for the same operating conditions regarding working fluid mass flow rate, inlet fluid temperature, ambient temperature, and incident solar radiation. However, it is found that the performance of the integrated collector is more sensitive to the variation in the overall heat hss coefficient and working fluid mass flow rate as compared with the conventional collectors.
机译：本工作介绍了一种新型的集成式太阳能收集器，可直接吸收太阳辐射并具有自储能功能。所提出的系统具有紧凑的尺寸，而无需任何连接管。工作流体直接吸收入射的太阳辐射，并将其传递到已经在新型系统的核心内实现的存储流体容器。已经提出了数学模型来描述所提出系统的热行为。此外，已经导出了一种表达式来预测系统效率，出口温度和利用的热传递。同时，将新型太阳能系统的性能与常规太阳能收集器的性能进行比较发现，所提出的系统的性能比常规太阳能收集器的性能好得多。提出的直接吸收式收集器具有一个收集器效率因子F'= 1，比制造良好的常规收集器高20％。与传统集热器相比，在整个热损失系数的整个范围内，并且在关于工作流体质量流量，入口流体温度的相同操作条件下，与常规集热器相比，集成系统的除热系数和效率提高了约20％ ，环境温度和入射太阳辐射。然而，发现与传统的收集器相比，集成式收集器的性能对总热hss系数和工作流体质量流量的变化更为敏感。

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