Study of main factors influencing unsteady-state temperature drop in oil tank storage under dynamic thermal environment coupling

作     者：Wei Sun Ming-Yang Li Yu-Duo Liu Qing-Lin Cheng Li-Xin Zhao Shuai Shao Zhi-Hua Wang 

作者机构：Key Laboratory for Enhancing Oil&Gas Recovery of Ministry of EducationNortheast Petroleum UniversityDaqing163318HeilongjiangChina 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2023年第20卷第6期

页      面：3783-3797页

核心收录：

学科分类：0820[工学-石油与天然气工程] 080706[工学-化工过程机械] 08[工学] 0807[工学-动力工程及工程热物理] 082003[工学-油气储运工程] 

基　　金：supported by the National Natural Science Foundation of China(52104064)(52074089) the China Postdoctoral Science Foundation(2020M681074) Heilongjiang Provincial Natural Science Foundation of China(YQ2023E006) University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province(UNPYSCT-2020152) Postdoctoral Science Foundation of Heilongjiang Province in China(LBH-TZ2106)(LBH-Z20122) Northeast Petroleum University Talents Introduction Fund(2019KQ18) 

主　　题：Oil temperature drop Forced convection Natural convection Dynamic thermal environment Quantitative analysis 

摘      要：With the increasing oil demand, the construction of oil energy reserves in China needs to be further strengthened. However, given that there has been no research on the main influencing factors of crude oil temperature drop in storage tanks under actual dynamically changing environments, this paper considers the influence of dynamic thermal environment and internal crude oil physical properties on the fluctuating changes in crude oil temperature. A theoretical model of the unsteady-state temperature drop heat transfer process is developed from a three-dimensional perspective. According to the temperature drop variation law of crude oil storage tank under the coupling effect of various heat transfer modes such as external forced convection, thermal radiation, and internal natural convection, the external dynamic thermal environment influence zone, the internal crude oil physical property influence zone, and the intermediate transition zone of the tank are proposed. And the multiple non-linear regression method is used to quantitatively characterize the influence of external ambient temperature, solar radiation, wind speed, internal crude oil density, viscosity, and specific heat capacity on the temperature drop of crude oil in each influencing zone. The results of this paper not only quantitatively explain the main influencing factors of the oil temperature drop in the top, wall, and bottom regions of the tank, but also provide a theoretical reference for oil security reserves under a dynamic thermal environment.