کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8072795 | 1521414 | 2017 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sustainability of heat energy tariff in district heating system: Statistic and dynamic methodologies
ترجمه فارسی عنوان
پایداری تعرفه انرژی گرما در سیستم گرمایش مرکزی: روش های آماری و پویا
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
The article analyzes district heating system efficiency by using benchmarking system. The 26 biggest Latvian DH companies were taken as case study for analysis. Two main components were distinguished from existing district heating systems tariffs: cost of fuel in tariff and other costs. Non-linear regression model is used for benchmarking analysis. Equation, which describes other costs as dependent variable, whereas fuel part of costs in tariff as independent variable was obtained. Performance of Latvian district heating companies were evaluated by using various efficiency indicators describing systems technical, scale, dynamic and financial parameters. Data envelopment analysis was used for measuring efficiency of these companies by taking into account multiple factors. In order to indicate main parameters that influence heat energy tariff and efficiency of all district heating system, sensitivity analysis by using system dynamic model developed in previous study was carried out. The model finds out the possibility to introduce the 4th generation district heating system in Latvia. Model includes the transition of heat network to the low-temperature regime at 80% share of the renewable energy. Moreover, matrix with district heating system efficiency parameters, which are most vital for optimization, was made.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 137, 15 October 2017, Pages 834-845
Journal: Energy - Volume 137, 15 October 2017, Pages 834-845
نویسندگان
Jelena Ziemele, Armands Gravelsins, Andra Blumberga, Dagnija Blumberga,