基于Fluent的太阳能电池冷却系统数值模拟
关键词 太阳能电池 散热器 Fluent 光伏电池
毕业设计说明书（论文）外文摘要
Title Numerical Simulation of Photovoltaic Cell Cooling System Based on Fluent
Abstract A cooling system of a thermal photovoltaic cells is designed, which is used to control the operating temperature of thermal photovoltaic cells, using the Fluent software to study the distribution and variation of the temperature of the battery under different situation. The simulation results show that under the condition of heat flux density of 50000 W/m2 and the inlet velocity of 3m/s, the highest temperature of the battery wall will reach for 315K, the design of the cooling system can effectively control the PV cell temperature. The outlet temperature of the systems that are made by different materials are equal, but the temperature of the cooper one is lower. Calculations also show that the increased flow rate can effectively reduce the temperature of thermal photovoltaic cells, but it will reduce the outlet temperature, which is not conducive for waste heat utilization. In addition analysis of the flow characteristics and temperature distribution causes are made.
Keywords Radiator Photovoltaic cells Fluent Cooling system
目 次
1 绪论 1
1.1 太阳能电池冷却系统数值模拟的目的和意义 1
1.2 太阳能电池冷却系统简介 1
1.3 国内外研究现状 1
1.4 CFD简介 2
1.5 论文主要研究内容 4
2 散热器数学模型建立 5
2.1 散热器物理模型 5
2.2 流体多文流动基本控制方程 8
2.2.1 连续性方程 8
2.2.2 N-S方程 9
2.2.3 能量方程与导热方程 9
2.3 湍流模型 10
3 数值计算方法 13
3.1 有限体积法 13
3.2 一阶迎风差分格式 13
3.3 SIMPLE算法 15
3.3.1 压力与速度的修正 15
3.3.2 压力修正方程 16
4 数值模拟与分析 19
4.1 计算模型建立 19
4.1.1 计算区域选择 19
4.1.2 模型假设 20
4.1.3 模型的建立及网格划分 20
4.1.4 边界条件的设置 21
4.1.5 计算模型的选择 22