Comparative study of heat transfer and pressure drop for curved-twisted tubes utilized in chemical engineering

作     者：Morteza Khoshvaght-Aliabadi Saber Deldar Shafiqur Rehman Ashkan Alimoradi Morteza Khoshvaght-Aliabadi;Saber Deldar;Shafiqur Rehman;Ashkan Alimoradi

作者机构：Department of Chemical EngineeringShahrood BranchIslamic Azad UniversityShahroodIran Department of Mechanical EngineeringTarbiat Modares UniversityTehranIran Center for Engineering ResearchThe Research InstituteKing Fahd University of Petroleum and MineralsDhahran 31261Saudi Arabia Department for Management of Science and Technology DevelopmentTon Duc Thang UniversityHo Chi Minh CityViet Nam Faculty of Applied SciencesTon Duc Thang UniversityHo Chi Minh CityViet Nam 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2021年第34卷第12期

页      面：53-64页

核心收录：

学科分类：081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 081701[工学-化学工程] 

基　　金：the support by the Islamic Azad University of Shahrood Branch 

主　　题：Computational fluid dynamics Heat transfer Laminar flow Curved-twisted tubes Comparative study 

摘      要：Increasing importance of heat transfer in chemical engineering science causes that investigation in the field of enhancement techniques is always one of the up-to-date topics for *** the current comparative analysis,the thermal enhancement and friction penalty are explored numerically for curved tubes via twisted *** accomplish this,three common geometries namely helical,serpentine,and Archimedes spiral,are considered at different coil-pitches and twist-pitches as well as five Reynolds numbers in the laminar flow *** results exhibit noticeable enhancements(up to 60%)in the thermal performance of the twisted cases as compared to the smooth *** highest increases are recorded for the serpentine case,followed by the helical and spiral *** is found that these enhancements vary via coil-pitch and *** coil-pitch and twist-pitch augments both heat transfer coefficient and pressure drop in all curved-twisted tubes,however,the effects of twist-pitch are more *** predict Nusselt number and friction factor,new correlations are also *** maximum deviations of the predicted results compared to the simulated data are within±5%.