Thermal analysis of a flat-plate solar collector filled with water under the dynamic operation via a multiparameter sensitivity analysis utilizing the Monte-Carlo method

IF 3 3区 工程技术 Q2 CHEMISTRY, ANALYTICAL
Mehdi Jamali Ghahderijani, Alireza Shirneshan, Wajdi Rajhi, Atef Boulila, Arash Karimipour, Ahmed Torchani, Naim Ben Ali
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引用次数: 0

Abstract

Flat-plate solar collectors (FPSC) are commonly used for low-temperature heating applications, making system modeling and sensitivity analysis crucial. However, most sensitivity analyses for these collectors are conducted under steady-state conditions. Because of the inherently dynamic nature of ambient conditions, dynamic modeling and sensitivity analysis are needed to better understand and determinate important influencing design parameters. This study presents a comprehensive parametric analysis using a dynamic model of the solar flat-plate collector. The impact of deviations from nominal values of each parameter on system performance and final storage tank temperature is investigated. The findings reveal that pitch tube and absorber thickness significantly influence system efficiency, with a 20% deviation in each parameter resulting in a 10% efficiency change. Moreover, ambient temperature and irradiance have a high impact, causing changes of over 10%. Additionally, a multiparameter sensitivity analysis utilizing the Monte-Carlo method (MPSA) is employed to assess the relative importance of each parameter on FPSC performance. The results highlight that system efficiency is highly sensitive to absorber thickness, while tube pitch, ambient temperature and solar irradiance are crucial for tank temperature. The MPSA is further applied across various ambient temperatures (ranging from 5 to 35 degrees) to determine changes in parameter sensitivity indices. The outcomes indicate that at lower ambient temperatures, certain parameters, such as solar irradiance and tube pitch, exhibit increased sensitivity. However, the sensitivity of system efficiency to all parameters remains relatively constant across different ambient temperatures.

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来源期刊
CiteScore
8.50
自引率
9.10%
发文量
577
审稿时长
3.8 months
期刊介绍: Journal of Thermal Analysis and Calorimetry is a fully peer reviewed journal publishing high quality papers covering all aspects of thermal analysis, calorimetry, and experimental thermodynamics. The journal publishes regular and special issues in twelve issues every year. The following types of papers are published: Original Research Papers, Short Communications, Reviews, Modern Instruments, Events and Book reviews. The subjects covered are: thermogravimetry, derivative thermogravimetry, differential thermal analysis, thermodilatometry, differential scanning calorimetry of all types, non-scanning calorimetry of all types, thermometry, evolved gas analysis, thermomechanical analysis, emanation thermal analysis, thermal conductivity, multiple techniques, and miscellaneous thermal methods (including the combination of the thermal method with various instrumental techniques), theory and instrumentation for thermal analysis and calorimetry.
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