ABSTRACT

This research paper is concerned with a detailed theoretical parametric analysis to optimize the depth of duct (bed) of blackened wire-screen matrices packed bed solar collector (PBSC) and obtained results are compared with plane collector. The two kinds of woven wire-screens are used in a plate of PBSC. The different mass flow rates of air pass through the absorber plate and for each mass flow rate of air temperature rise parameter is found to be changed with depth. The result shows an optimum depth of the duct is attained at 0.0225 kg/s-m². The optimum bed depth with absorber is found to be 15 and 22 mm that corresponds to the air temperature rise parameter of 0.0241 and 0.0248 K-m²/W, respectively. The maximum enhancement in efficiency is found to be 44% and 54% over plane collector. Similar composite performance plots are also presented for two other values of mass flow rates.

摘要

本研究论文关注详细的理论参数分析，以优化黑色丝网矩阵填充床太阳能集热器（PBSC）的管道（床）深度，并将所得结果与平面集热器进行比较。这两种编织丝网用于一块PBSC。不同的空气质量流量通过吸收板，并且对于每个质量流量的空气温度升高参数被发现随深度而变化。结果表明，管道的最佳深度达到了 0.0225 kg/sm ²。^{发现吸收器的最佳床层深度为 15 和 22 mm，对应于 0.0241 和 0.0248 Km 2}的空气温升参数/W，分别。发现效率的最大提高是平面收集器上的 44% 和 54%。对于其他两个质量流量值，也给出了类似的复合性能图。