کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6764992 | 1431587 | 2018 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dry steam cycle application for excess steam utilization: Kamojang geothermal power plant case study
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
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چکیده انگلیسی
This study investigated the utilization of available excess steam by the Kamojang geothermal power plant, which, owing to the vapor-domination of the steam, utilizes a dry steam cycle. A model of the system was validated against actual Kamojang Unit-2 data and found to produce accurate results within a low discrepancy level (<5% error). The modeled performance of the proposed system was obtained through optimization of the non-condensable gases (NCGs) gas removal system (GRS) based on heat balance calculations and assuming content of NCGs in the working fluid based on real operational data. To optimize the model, five GRS configurations were investigated: one-stage steam ejector, two-stage steam ejector, one-stage liquid ring vacuum pump (LRVP), two-stage LRVP, and hybrid system (ejector plus LRVP). To set constraints on the optimization, the allowable condenser pressure was defined based on the cooling water temperature and the maximum temperature difference. Under the best design configuration (a one-stage LRVP), the proposed plant generated a gross electric power of 15.9â¯MW with a parasitic power consumption of 755.2â¯kW. The proposed system to convert unused discharge steam into electricity suggests that its installation will result in an increase of the Kamojang geothermal power plant capacity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable Energy - Volume 117, March 2018, Pages 157-165
Journal: Renewable Energy - Volume 117, March 2018, Pages 157-165
نویسندگان
Lukman Adi Prananto, Firman Bagja Juangsa, Riza Mochamad Iqbal, Muhammad Aziz, Tubagus Ahmad Fauzi Soelaiman,