کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4990884 1368115 2018 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Research PaperYearly performance of low-enthalpy parabolic trough collectors in MENA region according to different sun-tracking strategies
ترجمه فارسی عنوان
مقاله پژوهشی کارایی سالانه جمع آوری های چند منظوره انالپتیک پارابولیک در منطقه MENA با توجه به راهکارهای مختلف ردیابی خورشید
کلمات کلیدی
PTC؛ منطقه MENA؛ ردیابی خورشید؛ آب و هوا؛ شبیه سازی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی


- Detailed thermo-optical model of PTCs with MATLAB code is presented.
- Climatic conditions affect significantly the PTC overall performance.
- Best yearly heat generation (154.57 MWh) is predicted in Ouarzazate, Morocco.
- Polar E-W is the most cost effective tracking technique for such applications.

Solar parabolic trough collector (PTC) is a very popular system in solar concentration technology, which is widely used for electric production and heat generation in industrial processes. In this paper, a validated mathematical model has been proposed to evaluate the performance of low-enthalpy PTC in five sites of the MENA region: Ouarzazate (Morocco), Gafsa (Tunisia), Jeddah (Saudi Arabia), Amman (Jordan) and Aswane (Egypt). A MATLAB program was developed to simulate the hourly thermal performance of the PTC under fluctuating climatic conditions. A particular attention has been given to the effect of the sun-tracking technique on the collector's performance. The model validation was carried out in two phases: first, by comparison with the results generated by the System Advisor Model software, and second by comparison with experimental data. In both cases, a very close agreement is obtained. The results have shown clearly that the tracking technique, climate and season of the year have a significant impact on the PTC performance. The best site for implementing such technologies was found to be Ouarzazate (Morocco) with a useful annual energy generation potential varying from 104.85 to 154.57 MWh. On December 24, the PTC operating in Ouarzazate using 0.2 kg/s mass flow rate, the outlet water temperature can achieve a maximum temperature of 70 °C using the full-tracking and N-S tracking techniques, while the outlet temperature does not exceed 46.5 °C using the E-W tracking. This temperature can reach 82 °C on July 07, by using the full-tracking and E-W tracking modes. From a general aspect, it was also concluded that the optimal cost-effective tracking strategy for the annual heat generation is the E-W polar tracking one independently of the geographical location.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 128, 5 January 2018, Pages 1404-1419
نویسندگان
, , , , ,