您的检索:
学者姓名:赵耀华
精炼检索结果:
年份
成果类型
收录类型
来源
综合
合作者
语言
清除所有精炼条件
摘要 :
基于L型双层微热管阵列‑双层玻璃盖板的平板型太阳能空气集热器,涉及太阳能光热利用领域,包括双层玻璃盖板、选择性吸收涂层、L型微热管阵列、平直翅片以及换热风道组件。在所述装置的集热过程中,太阳光透过双层玻璃盖板,加热盖板下侧的空气层,穿过玻璃的太阳光通过热辐射及热对流的方式将热量传递到选择性吸收涂层的表面,进而加热微热管阵列的蒸发段,微热管阵列通过其自身的优良性能将风道中的低温空气加热。利用L型微热管阵列优良的导热性能,增加了集热器的有效集热面积,实现了集热段和取热段的有效分离,同时增加了热管内部气液相变工质的流通量,有效增加了冷凝段面积,提高了集热器集热装置的集热效率。
引用:
复制并粘贴一种已设定好的引用格式,或利用其中一个链接导入到文献管理软件中。
GB/T 7714 | 刁彦华 , 王镇 , 赵耀华 et al. 基于L型双层微热管阵列-双层玻璃盖板的平板型太阳能空气集热器 : CN202310318842.0[P]. | 2023-03-28 . |
MLA | 刁彦华 et al. "基于L型双层微热管阵列-双层玻璃盖板的平板型太阳能空气集热器" : CN202310318842.0. | 2023-03-28 . |
APA | 刁彦华 , 王镇 , 赵耀华 , 张欣宇 , 王宇恒 , 王铠玮 . 基于L型双层微热管阵列-双层玻璃盖板的平板型太阳能空气集热器 : CN202310318842.0. | 2023-03-28 . |
导入链接 | NoteExpress RIS BibTex |
摘要 :
In this study, a compact ice thermal storage device that combines multichannel flat tube and closed rectangular fins is designed to improve solidification performance. To analyze the heat transfer characteristics and visualize the ice formation process, a numerical model was formulated and solved using enthalpyporosity method. The temperature distribution, liquid fraction, and ice front evolution were studied during solidification process. The effect of heat transfer fluid on the performance of storage device at different inlet temperatures and flow rates was numerically investigated. Results show that when the inlet temperature was reduced from -3 degrees C to -6 degrees C, the ice packing factor increased by 32.2% and the storage power forms a linear relationship with the inlet temperature. When the flow rate was increased from 0.1 m(3)/h to 0.2 m(3)/h, the ice packing factor increased by 8.7% but the effect of flow rate was less obvious than the inlet temperature. Furthermore, the heat transfer characteristics of closed rectangular fins were compared with traditional longitudinal fins. We found that the former can achieve more uniform temperature distribution and a higher ice formation rate. The average solidification enhancement ratios of the both are 2.28 and 2.08, respectively, the former being 9.6% higher than the latter. (C) 2021 Elsevier Ltd. All rights reserved.
关键词 :
Ice thermal storage Ice thermal storage Solidification process Solidification process Multichannel flat tube Multichannel flat tube Numerical simulation Numerical simulation Closed rectangular fin Closed rectangular fin
引用:
复制并粘贴一种已设定好的引用格式,或利用其中一个链接导入到文献管理软件中。
GB/T 7714 | Liu, Zichu , Quan, Zhenhua , Zhao, Yaohua et al. Numerical research on the solidification heat transfer characteristics of ice thermal storage device based on a compact multichannel flat tube-closed rectangular fin heat exchanger [J]. | ENERGY , 2022 , 239 . |
MLA | Liu, Zichu et al. "Numerical research on the solidification heat transfer characteristics of ice thermal storage device based on a compact multichannel flat tube-closed rectangular fin heat exchanger" . | ENERGY 239 (2022) . |
APA | Liu, Zichu , Quan, Zhenhua , Zhao, Yaohua , Jing, Heran , Wang, Lincheng , Liu, Xin . Numerical research on the solidification heat transfer characteristics of ice thermal storage device based on a compact multichannel flat tube-closed rectangular fin heat exchanger . | ENERGY , 2022 , 239 . |
导入链接 | NoteExpress RIS BibTex |
摘要 :
The operation of lithium-ion battery (LIB) at low ambient temperature leads to voltage drop and capacity attenuation. Thus, an effective thermal management system (TMS) is necessary to preheat the LIB at low ambient temperature. In this study, a preheating TMS for LIB based on U-shaped micro heat pipe array (MHPA) is proposed. The preheating performance of the TMS based on U-shaped MHPA is analyzed through the experiments of heat pipe (HP) module covered and not covered with thermal insulation materials (TIMs) and the experiments of different electric heating powers. Results show that after the TIMs are covered, the temperature rise rate of the HP module in the preheating condition is increased by 386%, and the battery can be preheated from -20 ? to 0 ? in 26 min under 32 W electric heating. These findings prove that the TMS has excellent preheating performance. Moreover, the temperature rise rate of the HP module increases only by 9% under 1C charge and discharge after the TIMs are covered, proving that the preheating function of the TMS based on U-shaped MHPA does not interfere with the cooling function. Thus, this study provides guidance for the practical application of TMS. (C) 2022 Elsevier Ltd. All rights reserved.
关键词 :
Thermal management system Thermal management system U-shaped micro heat pipe array U-shaped micro heat pipe array Lithium-ion battery Lithium-ion battery Low ambient temperature preheating Low ambient temperature preheating
引用:
复制并粘贴一种已设定好的引用格式,或利用其中一个链接导入到文献管理软件中。
GB/T 7714 | Ren, Ruyang , Zhao, Yaohua , Diao, Yanhua et al. Experimental study on preheating thermal management system for lithium-ion battery based on U-shaped micro heat pipe array [J]. | ENERGY , 2022 , 253 . |
MLA | Ren, Ruyang et al. "Experimental study on preheating thermal management system for lithium-ion battery based on U-shaped micro heat pipe array" . | ENERGY 253 (2022) . |
APA | Ren, Ruyang , Zhao, Yaohua , Diao, Yanhua , Liang, Lin . Experimental study on preheating thermal management system for lithium-ion battery based on U-shaped micro heat pipe array . | ENERGY , 2022 , 253 . |
导入链接 | NoteExpress RIS BibTex |
摘要 :
空气-多孔道扁管相变蓄热装置换热性能研究
关键词 :
多孔道扁管 多孔道扁管 数值模拟 数值模拟 有效性 有效性 相变蓄热 相变蓄热 空气 空气
引用:
复制并粘贴一种已设定好的引用格式,或利用其中一个链接导入到文献管理软件中。
GB/T 7714 | 陈传奇 , 刁彦华 , 赵耀华 et al. 空气-多孔道扁管相变蓄热装置换热性能研究 [J]. | 陈传奇 , 2021 , 42 (3) : 724-731 . |
MLA | 陈传奇 et al. "空气-多孔道扁管相变蓄热装置换热性能研究" . | 陈传奇 42 . 3 (2021) : 724-731 . |
APA | 陈传奇 , 刁彦华 , 赵耀华 , 王泽宇 , 梁林 , 庞铭鑫 et al. 空气-多孔道扁管相变蓄热装置换热性能研究 . | 陈传奇 , 2021 , 42 (3) , 724-731 . |
导入链接 | NoteExpress RIS BibTex |
摘要 :
多能互补协同蓄能系统热力学分析与运行优化
关键词 :
优化 优化 再生能源 再生能源 多能互补 多能互补 热力学 热力学 热泵 热泵 热经济学 热经济学
引用:
复制并粘贴一种已设定好的引用格式,或利用其中一个链接导入到文献管理软件中。
GB/T 7714 | 王宇波 , 全贞花 , 靖赫然 et al. 多能互补协同蓄能系统热力学分析与运行优化 [J]. | 王宇波 , 2021 , 72 (5) : 2474-2483,F0004 . |
MLA | 王宇波 et al. "多能互补协同蓄能系统热力学分析与运行优化" . | 王宇波 72 . 5 (2021) : 2474-2483,F0004 . |
APA | 王宇波 , 全贞花 , 靖赫然 , 王林成 , 赵耀华 , 化工学报 . 多能互补协同蓄能系统热力学分析与运行优化 . | 王宇波 , 2021 , 72 (5) , 2474-2483,F0004 . |
导入链接 | NoteExpress RIS BibTex |
摘要 :
Air-phase change thermal storage devices are in great demand in the fields of crop drying, flue gas waste heat recovery and building heating. However, the current research on air-phase change thermal storage devices is few and the structure is mostly flat. Based on previous experimental studies, this study used numerical simulation methods to study the thermal performance of four structures of multichannel channel flat tube phase change thermal storage devices to ease the problems of irrational heat transfer structure and low compact factor. The compact factor of the device is improved by changing the height of the flat tube ribs. The effectiveness and specific power are used as evaluation indicators. The results show that when the length of the multichannel flat tube is perpendicular to the direction of gravity and the air is injected from the side, the performance of the device is greatly exerted. Compared with the original research, the phase change completion time is improved by 20.59%. The results show that 0.03 m is a reasonable flat tube rib height. In this case, the compact factor is 61.5%. © 2021, Science Press. All right reserved.
关键词 :
Heat storage Heat storage Heat transfer performance Heat transfer performance Numerical methods Numerical methods Tubes (components) Tubes (components) Virtual storage Virtual storage Waste heat Waste heat Waste heat utilization Waste heat utilization
引用:
复制并粘贴一种已设定好的引用格式,或利用其中一个链接导入到文献管理软件中。
GB/T 7714 | Chen, Chuan-Qi , Diao, Yan-Hua , Zhao, Yao-Hua et al. Thermal Performance of An Air-multichannel Flat Tube Phase Change Thermal Storage Device [J]. | Journal of Engineering Thermophysics , 2021 , 42 (3) : 724-731 . |
MLA | Chen, Chuan-Qi et al. "Thermal Performance of An Air-multichannel Flat Tube Phase Change Thermal Storage Device" . | Journal of Engineering Thermophysics 42 . 3 (2021) : 724-731 . |
APA | Chen, Chuan-Qi , Diao, Yan-Hua , Zhao, Yao-Hua , Wang, Ze-Yu , Liang, Lin , Pang, Ming-Xin . Thermal Performance of An Air-multichannel Flat Tube Phase Change Thermal Storage Device . | Journal of Engineering Thermophysics , 2021 , 42 (3) , 724-731 . |
导入链接 | NoteExpress RIS BibTex |
摘要 :
一种微热管阵列式梯级相变蓄热系统,属于相变蓄热领域。该系统由n级(n≥2)微热管阵列式相变蓄热装置、冷源、热源及连接管路组成。第1级相变蓄热装置到第n级蓄热装置分别依次承载相变温度递减的相变材料。其中,微热管阵列式相变蓄热装置是以微热管阵列为核心传热元件,装置下部为供热段,中部为蓄热段,上部为放热段,在这种形式下,可有效地扩展流体侧和相变材料侧的换热面积。同时梯级蓄热系统采用不同熔点的相变材料进行蓄热,提高了热交换流体和相变材料之间的换热温差。
引用:
复制并粘贴一种已设定好的引用格式,或利用其中一个链接导入到文献管理软件中。
GB/T 7714 | 刁彦华 , 秦倩 , 赵耀华 et al. 一种微热管阵列式梯级相变蓄热系统 : CN202110299797.X[P]. | 2021-03-19 . |
MLA | 刁彦华 et al. "一种微热管阵列式梯级相变蓄热系统" : CN202110299797.X. | 2021-03-19 . |
APA | 刁彦华 , 秦倩 , 赵耀华 , 王泽宇 , 陈传奇 . 一种微热管阵列式梯级相变蓄热系统 : CN202110299797.X. | 2021-03-19 . |
导入链接 | NoteExpress RIS BibTex |
摘要 :
The performance of lithium-ion battery is greatly affected by temperature, so the battery module must be equipped with an effective thermal management system (TMS) during operation. In this study, a new type of active air cooling TMS based on U-shaped micro heat pipe array (MHPA) is developed to reduce a battery's temperature rise and improve the temperature uniformity of the battery module throughout the entire charge and discharge process. Modules with and without U-shaped MHPA are established for comparative experiments. They can dissipate heat in three methods, namely active air cooling with U-shaped MHPA (AAC-MHPA), passive air cooling with U-shaped MHPA (PAC-MHPA), and passive air cooling with no U-shaped MHPA (PAC-NMHPA). Results show that under 2C constant current charge and 3C constant current discharge conditions, the maximum instantaneous highest temperatures of AAC-MHPA and PAC-NMHPA are 51.70 degrees C and 57.83 degrees C, respectively. This outcome demonstrates that the thermal management performance of AAC-MHPA is the best. This cooling method has good thermal management performance even under high charge and discharge rates conditions.
关键词 :
Thermal management system Thermal management system Air cooling Air cooling U-shaped micro heat pipe array U-shaped micro heat pipe array Lithium-ion battery Lithium-ion battery
引用:
复制并粘贴一种已设定好的引用格式,或利用其中一个链接导入到文献管理软件中。
GB/T 7714 | Ren, Ruyang , Zhao, Yaohua , Diao, Yanhua et al. Active air cooling thermal management system based on U-shaped micro heat pipe array for lithium-ion battery [J]. | JOURNAL OF POWER SOURCES , 2021 , 507 . |
MLA | Ren, Ruyang et al. "Active air cooling thermal management system based on U-shaped micro heat pipe array for lithium-ion battery" . | JOURNAL OF POWER SOURCES 507 (2021) . |
APA | Ren, Ruyang , Zhao, Yaohua , Diao, Yanhua , Liang, Lin , Jing, Heran . Active air cooling thermal management system based on U-shaped micro heat pipe array for lithium-ion battery . | JOURNAL OF POWER SOURCES , 2021 , 507 . |
导入链接 | NoteExpress RIS BibTex |
摘要 :
This study aims to establish a novel solar air collection-cascade storage system. Flat-plate micro-heat pipe arrays are applied in collector and heat storage units for heat transfer enhancement. To increase energy utilization ratio and improve system stability, a cascade storage configuration using paraffin and lauric acid is adopted. In the charging process, the cascade heat storage units store the solar irradiance collected by the collector in the phase change materials through the heat exchange fluid (air). During the discharging process, air takes away the heat stored in the phase change material. The heat transfer process and thermal performance of the system was analyzed experimentally in different volume flow rates from the perspectives of energy and exergy. The experimental results show that the air flow rate affects the thermal performance of the system significantly: as the volume flow rate increases, the heat collection power and efficiency show an upward trend, and the heat storage power and heat storage efficiency also show an increasing trend. Contrary to the increasing trend of exergy storage efficiency, exergy extraction efficiency decreases with increasing volume flow rate. An airflow rate of 220 m(3)/h obtains the highest average heat collection power and average heat collection efficiency, which are 542.0 W and 35.8%, respectively. In this condition, the average heat storage power and average heat storage efficiency of latent heat storage unit I are 175.1 W and 67.5%, respectively, and those of unit II are 136.0 W and 87.5%, respectively.
关键词 :
Thermal performance analysis Thermal performance analysis Micro-heat pipe array Micro-heat pipe array Solar air heating system Solar air heating system Latent heat storage Latent heat storage Cascade storage Cascade storage
引用:
复制并粘贴一种已设定好的引用格式,或利用其中一个链接导入到文献管理软件中。
GB/T 7714 | Diao, Yanhua , Qi, Naixin , Wang, Zeyu et al. Thermal performance analysis of a solar air collection-cascade storage system integrated with micro-heat pipe arrays [J]. | SOLAR ENERGY , 2021 , 224 : 1271-1290 . |
MLA | Diao, Yanhua et al. "Thermal performance analysis of a solar air collection-cascade storage system integrated with micro-heat pipe arrays" . | SOLAR ENERGY 224 (2021) : 1271-1290 . |
APA | Diao, Yanhua , Qi, Naixin , Wang, Zeyu , Zhao, Yaohua , Chen, Chuanqi , Wang, Zhen . Thermal performance analysis of a solar air collection-cascade storage system integrated with micro-heat pipe arrays . | SOLAR ENERGY , 2021 , 224 , 1271-1290 . |
导入链接 | NoteExpress RIS BibTex |
摘要 :
In this paper, a latent heat thermal storage device is designed and manufactured. The device uses flat micro heat pipe arrays as the core heat transfer element, multichannel flat pipes as the heat transfer fluid channel to provide and remove heat, and offset strip fins to strengthen the heat exchange of the phase change material side. The performance of the device under different operating conditions was explored, and a 3D computational fluid dynamic model of the device is established. The model is simplified by using the method of equivalent thermal conductivity and equivalent specific heat capacity. The performance of a latent heat storage unit under small temperature difference is also studied. Results show that the inlet temperature of fluid has a great influence on the performance of the device. During charging process, when the fluid temperature changes from 63 degrees C to 73 degrees C, the charging power increases from 921.1 W to 1302.1 W (41.3%). During discharging process, when the fluid temperature decreases from 18 degrees C to 8 degrees C, the discharging power increases from 831.1 W to 1210.5 W (48.9%). Regarding the flow rate, when the fluid flow rate increases from 2 L/min to 3 L/min (50%), the average charging power increases from 1,069.2 W to 1,199.3 W (12.2%), and the average discharging power increases from 895.1 W to 1,068.3 W (19.3%). Simulation results show that the phase change material in the thermal storage unit can melt completely when the temperature difference is 4 degrees C, but the melting time is longer when the heat transfer temperature difference is less than 6 degrees C. Heat transfer temperature difference refers to the variance between the heat transfer fluid inlet temperature and the phase change material phase transition temperature. The main thermal resistance is concentrated in the part where multichannel flat pipes transfer heat to the flat micro heat pipe arrays and the phase change material side.
关键词 :
Flat micro heat pipe arrays Flat micro heat pipe arrays Latent heat thermal energy storage Latent heat thermal energy storage Offset strip fins Offset strip fins Performance enhancement Performance enhancement Small heat transfer temperature difference Small heat transfer temperature difference
引用:
复制并粘贴一种已设定好的引用格式,或利用其中一个链接导入到文献管理软件中。
GB/T 7714 | Diao, Yanhua , Qin, Qian , Wang, Zeyu et al. Numerical and experimental investigation on a latent heat thermal storage device featuring flat micro heat pipe arrays with offset strip fins [J]. | JOURNAL OF ENERGY STORAGE , 2021 , 41 . |
MLA | Diao, Yanhua et al. "Numerical and experimental investigation on a latent heat thermal storage device featuring flat micro heat pipe arrays with offset strip fins" . | JOURNAL OF ENERGY STORAGE 41 (2021) . |
APA | Diao, Yanhua , Qin, Qian , Wang, Zeyu , Zhao, Yaohua , Chen, Chuanqi , Ren, Ruyang . Numerical and experimental investigation on a latent heat thermal storage device featuring flat micro heat pipe arrays with offset strip fins . | JOURNAL OF ENERGY STORAGE , 2021 , 41 . |
导入链接 | NoteExpress RIS BibTex |
导出
数据: |
选中 到 |
格式: |