کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
647809 1457182 2012 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of seasonal variations in the energy and exergy performance of the Gonen geothermal district heating system
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Investigation of seasonal variations in the energy and exergy performance of the Gonen geothermal district heating system
چکیده انگلیسی

In this paper, time-dependent changes in the energy and exergy performance of the Gonen geothermal district heating system (GDHS) due to seasonal differences in the energy requirement of the system are investigated. In this extend, over a one-year period the system is monitored by using fixed and portable measuring devices and all the data needed for the calculations are collected. Energy and exergy analysis of the system and its main components is carried out for winter, summer and transition seasons separately, considering the seasonal changes in the heating load of the system. The highest energy and exergy efficiencies of the overall Gonen GDHS are determined to be 45.78% and 50.45% in the transition seasons, respectively, while the lowest energy and exergy efficiencies are found to be 31.72% and 39.34% in the winter season, respectively. Besides, the annual average energy and exergy efficiencies are determined to be 41.07% and 45.86%, respectively.


► We monitor the Gonen geothermal district heating system for a one-year period.
► We examine seasonal changes in the energy and exergy efficiencies (ηsys, εsys).
► The highest ηsys and εsys occur in transition season with 45.7% and 50.4%.
► The lowest ηsys and εsys occur in winter season with 31.7% and 39.3%.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 36, April 2012, Pages 39–50
نویسندگان
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