A universal model for solar radiation exergy accounting: Case study of Tunisia

IF 0.8 Q4 THERMODYNAMICS

Archives of Thermodynamics Pub Date : 2023-07-20 DOI:10.24425/ather.2022.141980

D. Lounissi, N. Bouaziz

{"title":"A universal model for solar radiation exergy accounting: Case study of Tunisia","authors":"D. Lounissi, N. Bouaziz","doi":"10.24425/ather.2022.141980","DOIUrl":null,"url":null,"abstract":"The global solar radiation is the origin for all environmental processes on the earth and the majority of energy sources are derived from it. The data of solar radiation are required for the design and the study of solar application systems. The more important is the quality of the solar radiation which is deﬁned by the maximum work can be provided by the solar radiation. This quality is measured by the exergy content of a solar radiation. In the present work, a universal pattern has been built to provide a prediction of solar exergy dependently to the geographic location. Fitting models have been developed for exergy account depending on geographic location, based on the linear, quadratic, cubic, logarithmic, exponential, power regression. The Petela model is adopted from literature for exergetic eﬃciency accounting of solar radiation. The global solar radiation according to ASHRAE model is expressed dependently of the cosine of zenith angle. The developed model is applied on Tunisia regions to predict exergy solar potential. The studied regions are classiﬁed regarding the exergy account, high, medium and low solar exergy locations. Results show that generally the solar radiation shows a low degree of exergy content, about 7% of diﬀerence.","PeriodicalId":45257,"journal":{"name":"Archives of Thermodynamics","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archives of Thermodynamics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.24425/ather.2022.141980","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"THERMODYNAMICS","Score":null,"Total":0}

引用次数: 5

Abstract

The global solar radiation is the origin for all environmental processes on the earth and the majority of energy sources are derived from it. The data of solar radiation are required for the design and the study of solar application systems. The more important is the quality of the solar radiation which is deﬁned by the maximum work can be provided by the solar radiation. This quality is measured by the exergy content of a solar radiation. In the present work, a universal pattern has been built to provide a prediction of solar exergy dependently to the geographic location. Fitting models have been developed for exergy account depending on geographic location, based on the linear, quadratic, cubic, logarithmic, exponential, power regression. The Petela model is adopted from literature for exergetic eﬃciency accounting of solar radiation. The global solar radiation according to ASHRAE model is expressed dependently of the cosine of zenith angle. The developed model is applied on Tunisia regions to predict exergy solar potential. The studied regions are classiﬁed regarding the exergy account, high, medium and low solar exergy locations. Results show that generally the solar radiation shows a low degree of exergy content, about 7% of diﬀerence.

查看原文本刊更多论文

太阳辐射火用计算的通用模型:以突尼斯为例

全球太阳辐射是地球上所有环境过程的起源，大多数能源都来源于全球太阳辐射。太阳辐射数据是设计和研究太阳能应用系统所必需的。更重要的是太阳辐射的质量，这取决于太阳辐射所能提供的最大功。这种质量是通过太阳辐射的火用含量来衡量的。在目前的工作中，已经建立了一个通用模式，以提供与地理位置相关的太阳能火用预测。在线性、二次、三次、对数、指数和幂回归的基础上，根据地理位置建立了火用账户的拟合模型。Petera模型取自文献，用于太阳辐射的有效性核算。根据ASHRAE模型，全球太阳辐射与天顶角的余弦有关。将所开发的模型应用于突尼斯地区，以预测（火用）太阳能潜力。研究区域根据火用账户、高、中、低太阳能火用位置进行了分类。结果表明，通常太阳辐射的火用含量较低，约为差异的7%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Archives of Thermodynamics THERMODYNAMICS-

CiteScore

1.80

自引率

22.20%

发文量

期刊介绍： The aim of the Archives of Thermodynamics is to disseminate knowledge between scientists and engineers interested in thermodynamics and heat transfer and to provide a forum for original research conducted in Central and Eastern Europe, as well as all over the world. The journal encompass all aspect of the field, ranging from classical thermodynamics, through conduction heat transfer to thermodynamic aspects of multiphase flow. Both theoretical and applied contributions are welcome. Only original papers written in English are consider for publication.