具有Sn-Al2O3选择性吸收和重力水流的固定平板太阳能集热器的理论和数值分析

IF 1.1 4区 工程技术 Q4 THERMODYNAMICS
A. Nešović, N. Lukic, D. Cvetkovic, Miljan Marašević, Marko Topalovic
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引用次数: 0

摘要

本文介绍了两种热分析方法(理论和数值),用于之前在克拉古耶瓦茨工程学院实验安装的太阳能集热器结构-具有Sn-Al2O3选择性吸收剂和重力水流的固定平板太阳能集热器。理论研究是基于一种具体的计算算法的应用,采用三次迭代的方法,即对固定平板太阳能集热器的所有重要性能指标进行三段式校核。在数值研究阶段,采用简单线性回归对太阳辐射强度的实验测量值和热功率的实验测定值进行处理,形成简单的方程,可用于预测未来类似太阳能结构的热性能。理论和数值研究结果与实验研究一致,第一种情况下的绝对测量误差小于10%,而第二种情况下的确定系数大于90%,因此作者希望这项工作对更广泛的科学界有所帮助。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Theoretical and numerical analysis of the fixed flat-plate solar collector with Sn-Al2O3 selective absorber and gravity water flow
This paper presents two methods (theoretical and numerical) for the thermal analysis of the previously experimentally installed solar collector construction at the Faculty of Engineering in Kragujevac - a fixed flat-plate solar collector with Sn-Al2O3 selective absorber and gravity water flow. The theoretical research was based on the application of a specific calculation algorithm with a triple iterative procedure, i.e. with a three-stage check of all important performance indicators of the fixed flat-plate solar collector. In the numerical phase of the research, Simple Linear Regression was applied to experimentally measured values of solar radiation intensity and experimentally determine values of heat power to form simple equations that could be used to predict the thermal performance of similar solar structures in the future. The results of theoretical and numerical studies showed agreement with experimental studies, because in the first case, the absolute measurement error was less than 10%, while in the second case, the determination coefficient was greater than 90%, so the authors hope that this work will be useful to the wider scientific community.
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来源期刊
Thermal Science
Thermal Science 工程技术-热力学
CiteScore
2.70
自引率
29.40%
发文量
399
审稿时长
5 months
期刊介绍: The main aims of Thermal Science to publish papers giving results of the fundamental and applied research in different, but closely connected fields: fluid mechanics (mainly turbulent flows), heat transfer, mass transfer, combustion and chemical processes in single, and specifically in multi-phase and multi-component flows in high-temperature chemically reacting flows processes present in thermal engineering, energy generating or consuming equipment, process and chemical engineering equipment and devices, ecological engineering, The important characteristic of the journal is the orientation to the fundamental results of the investigations of different physical and chemical processes, always jointly present in real conditions, and their mutual influence. To publish papers written by experts from different fields: mechanical engineering, chemical engineering, fluid dynamics, thermodynamics and related fields. To inform international scientific community about the recent, and most prominent fundamental results achieved in the South-East European region, and particularly in Serbia, and - vice versa - to inform the scientific community from South-East European Region about recent fundamental and applied scientific achievements in developed countries, serving as a basis for technology development. To achieve international standards of the published papers, by the engagement of experts from different countries in the International Advisory board.
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