结构参数对管板式光伏光热集热器性能的影响研究
Study on the Effect of Structural Parameters on the Performance of Sheet-and-tube PV/T Collectors
纪培栋 1王静毅 2彭浩 1寿春晖 1代彦军3
作者信息
- 1. 浙江省白马湖实验室有限公司,杭州 310000;浙江省太阳能利用及节能技术重点实验室,杭州 310000
- 2. 浙江浙能北仑发电有限公司,宁波 315000
- 3. 上海交通大学机械与动力工程学院,上海 200240
- 折叠
摘要
本文以对平板集热器经典的Hottel-Whillier模型进行修正以适用于管板式光伏光热集热器(PV/T集热器),并采用实验数据对修正后的PV/T集热器仿真模型进行验证.利用验证后的PV/T集热器仿真模型,研究吸热板厚度和导热系数、吸热管间距和内径、保温层厚度、光伏组件功率等结构参数对集热器集热效率、发电效率和总效率的影响,然后基于敏感性分析法确定管板式PV/T集热器的关键结构参数.结果表明,各结构参数对管板式PV/T集热器性能的影响程度,从大到小依次为:组件功率、吸热管间距、吸热板厚度和导热系数、吸热管内径、保温层厚度.组件功率和吸热管间距对应的敏感性系数明显高于其他4个参数,是管板式PV/T集热器的关键结构参数,并最终确定了最佳的PV/T集热器关键结构参数.
Abstract
In this paper,the classic Hottel-Whillier model for flat plate collectors was modified for sheet-and-tube PV/T collectors and experimental data was used to verify the modified simulation model.Then,with the verified simulation mode,the influence of the thickness and thermal conductivity of the heat-absorbing plate,the spacing and inner diameter of heat absorbing tube,the thickness of the insulation layer,and the PV power on the thermal efficiency,electrical efficiency,and total efficiency of the sheet-and-tube PV/T collector was studied.On this basis,the sensitivity analysis method was used to analyze the influence of the structural parameters on the performance of the sheet-and-tube PV/T collector.The results show that the magnitude of influence on the performance of sheet-and-tube PV/T collector is as follows:the PV power,the heat absorbing tube spacing,the thickness and the thermal conductivity of the heat absorbing plate,the inner diameter of the heat absorbing tubes,the thickness of the insulation layer.Since the sensitivity coefficient corresponding to the PV power and the heat-absorbing tube spacing are significantly higher than the other four parameters,it was determined as the key structural parameters,and used to determine the key structural parameters of PV/T collectors.
关键词
PV/T集热器/数学模型/结构参数/敏感性分析Key words
PV/T collector/mathematical model/structural parameters/sensitivity analysis引用本文复制引用
基金项目
国家重点研发计划(2019YFE0104900)
浙江省太阳能利用与节能技术重点实验室项目(ZNKJ2019001)
出版年
2024
NETL
NSTL
万方数据