Thermodynamic Analysis and Optimization of Flat Plate Solar Collector Using TiO_(2)/Water Nanofluid  

作　　者：Firas F.Qader Falah Z.Mohammed Barhm Mohamad 

机构地区：[1]Technical Engineering College-Kirkuk,Northern Technical University,Kirkuk 36001,Iraq [2]Medical Device Technology Engineering,AL-Qalam University College,Kirkuk 36001,Iraq [3]Department of Petroleum Technology,Koya Technical Institute,Erbil Polytechnic University,Erbil 44001,Iraq

出　　处：《Journal of Harbin Institute of Technology(New Series)》2024年第4期61-73,共13页哈尔滨工业大学学报（英文版）

摘　　要：To research solar energy's efficiency and environmental benefits,the thermal efficiency,exergy,and entropy of solar collectors were calculated.The experiment involved two glass-topped collectors,fluid transfer tubes,and aluminum heat-absorbing plates.Glass wool insulation minimized heat loss.A 0.5% TiO_(2)/Water nanofluid was created using a mechanical and ultrasonic stirrer.Results showed that solar radiation increased thermal efficiency until midday,reaching 48.48% for water and 51.23% for the nanofluid.With increasing mass flow rates from 0.0045 kg/s to 0.02 kg/s,thermal efficiency improved from 16.26% to 47.37% for water and from 20.65% to 48.76% for the nanofluid.Filtered water provided 380 W and 395 W of energy in March and April,while the nanofluid increased it to 395 W and 415 W during these months.Mass flow generated energy,and the Reynolds number raised entropy.The noon exergy efficiency for nanofluids was 50%-55%,compared to 30% for water.At noon,the broken exergy measured 877.53 W for the nanofluid and 880.12 W for water.In Kirkuk,Iraq,the 0.5% TiO_(2)/Water nanofluid outperformed water in solar collectors.

关 键 词：ENERGY EXERGY entropy generation NANOFLUID flat plate solar collector 

分 类 号：TK51[动力工程及工程热物理—热能工程]