Title of article :
The Energy and Exergy Analysis of Integrated Hydrogen Production System Using High Temperature Steam Electrolysis with Optimized Water Path
Author/Authors :
Raeissi Jelodar, H Department of Energy Systems Engineering - Petroleum University of Technology, Mahmoodabad, Iran , Salehi, G.R Department of Mechanical Engineering - Petroleum University of Technology, Abadan, Iran , Abedini, R Department of Process - Faculty of Chemical Engineering - Babol Noshirvani University of Technology, Babol, Iran
Abstract :
In this research, solar-drived integrated Hydrogen production (HP) using high-temperature steam
electrolysis (HTSE) is thermodynamically evaluated. This system includes an organic Rankine cycle
(ORC), Rankine cycle, Brayton cycle, solar tower, and High Temperature Steam Electrolysis (HTSE).
Solar energy supplies thermal energy. This heat source is applied for generating power. This energy is
used for HTSE due to its demand in the form of electricity. First, we calculated inlet and outlet energy
and their rates for whole subsystems. The results showed 50.77% overall and 31.63% exergy
efficiencies related to power generation section and 92.85% overall energy and 91% exergy
efficiencies related to hydrogen production section. Also in this research we found the importance of
auxiliary equipment. Auxiliary equipment helps that significant amount of hydrogen production to be
saved. This amount at 577 K is equal that produces 0.093 kg H2/s
Farsi abstract :
در اين تحقيق، توليد هيدروژن مجتمع شده با انرژي خورشيدي (HP) با استفاده از الكتروليز بخار با درجه حرارت بالا (HTSE) ، ارزيابي ترموديناميكي مي شود. اين سيستم شامل يك چرخه رانكين آلي (ORC)، چرخه رانكين، چرخه ي برايتون، برج خورشيدي و الكتروليز بخار با درجه حرارت بالا (HTSE) مي باشد. انرژي خورشيدي تاميين كننده انرژي حرارتي مي باشد. اين انرژي حرارتي براي توليد نيرو اعمال مي شود. اين انرژي به دليل تقاضاي آن به شكل برق مورد استفاده قرار مي گيرد. اول، ما انرژي ورودي و خروجي و نرخ هاي آنها را براي زير سيستم هاي كل محاسبه كرد. نتايج به دست آمده حاوي 50,77% كل انرژي و 31,63% بهره وري از اگزرژي مربوط به بخش توليد برق و 92,85% انرژي كلي و و 91,01% بهره وري از اگزرژي مربوط به بخش توليد هيدروژن است. همچنين در اين تحقيق ما اهميت تجهيزات كمكي را در بر داشتيم. تجهيزات كمكي كمك مي كند كه مقدار قابل توجهي توليد هيدروژن ذخيره شود. اين مقدار برابر با 577 كيلوگرم است كه 0,03 كيلوگرم بر ثانيه H2 توليد مي كند.
Keywords :
Solar Driven Integrated System , Hydrogen Production , High-temperature Steam , Electrolysis , Thermodynamic Analysis Energy
