Designing and exergetic analysis of a solar power tower system for Iskenderun region Online publication date: Wed, 02-Jan-2019
by Hüseyin Yağlı; Cuma Karakuş; Yıldız Koç; Mehmet Çevik; İrem Uğurlu; Ali Koç
International Journal of Exergy (IJEX), Vol. 28, No. 1, 2019
Abstract: In this paper, a steam cycle assisted solar tower power system is designed and parametrically optimised for Iskenderun region by considering the weather conditions. After the optimisation, exergy-based analysis of the compounds and overall plant is performed for the best-performing cycle conditions. As a result of the annual-based monthly parametric optimisation, the design parameters, working performance, energy and exergy efficiencies of system are compared to obtain the best-performing cycle conditions which are found in July at the tower outlet pressure and temperature of 100 bar and 1,000°C. The net power production and thermal efficiency of the system at the best-performing conditions are calculated as 47,046.60 kW and 45.814%, respectively. After the exergetic analysis of compounds and overall system, the highest exergetic efficiency is evaluated in 2nd turbine (T-2) as 99.23% and the lowest exergetic efficiency is found in 1st heat exchanger (HeX-1) as 74.16%. Moreover, the overall exergetic efficiency is calculated as 47.19%.
Online publication date: Wed, 02-Jan-2019
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