This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1002/ep.13483 THERMODYNAMIC FEASIBILITY ANALYSIS OF A NEWLY MODIFIED ABSORPTION POWER CYCLE RUNNING WITH LiBr-WATER Alperen Tozlu 1* , Salem A. Yosaf 2 and Hasan Özcan 3 1* Bayburt University, Faculty of Engineering, Mechanical Engineering Department, Bayburt, 69000, Turkey alperentozlu@bayburt.edu.tr 2 Karabuk University, Faculty of Engineering, Mechanical Engineering Department, Karabuk, 78050, Turkey salemyosaf1@gmail.com 3 Yildirim Beyazit University, Faculty of Engineering and Natural Sciences, Mechanical Engineering Department, Ankara, 06220, Turkey hozcan@ybu.edu.tr Abstract: This study thermodynamically evaluates a newly modified Absorption Power Cycle (APC) working with Lithium Bromide–Water (LiBr-H2O) solution and compares it with the conventional Rankine, one-stage and three-stage APC systems. An additional steam condenser is integrated to the conventional APC and part of pure water is extracted and pumped back to the high-pressure side without passing through the absorber of the cycle. In order to specify the best system parameters, parametric optimization of all configurations is evaluated. The Rankine cycle and the modified APC have better thermodynamic performances than those of the conventional and the three-stage APC at generator temperatures. The conventional APC is found to improve the cycle performance at low generator pressure. However, the efficiencies of this cycle start to decrease when generator pressure increases. In contrast, the Rankine cycle and the modified APC have larger working ranges of generator pressure. Keywords: Absorption power cycle, LiBr-water, energy, exergy, Rankine cycle. This article is protected by copyright. All rights reserved.