Query：
学者姓名：刘忠宝
Refining：
Year
Type
Indexed by
Source
Complex
Co-Author
Language
Clean All
Abstract ：
With the development of the economy, improving energy efficiency and saving energy have become important issues that need to be addressed. In terms of building energy efficiency, combining phase change heat storage material with floor radiation heating is an effective way to improve energy utilization efficiency. In this paper, a composite phase change heat storage material used in radiant floor heating was introduced. Based on the selected materials, experiments on floor radiation heating system based on heat storage in different environments during the heating season were conducted. The results showed that thermal conductivity of composite phase change heat storage material increased by a maximum of 97.2%, and the maximum heat release time can be obtained 6 h. By using this radiant floor heating system, a balance between heating comfort and economy has been achieved, so this system will have a good applied foreground.
Keyword ：
Building energy conservation Building energy conservation Phase-change heat storage material Phase-change heat storage material Thermal energy storage Thermal energy storage
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Zhongbao , Wei, Ziyan , Teng, Ruonan et al. Research on performance of radiant floor heating system based on heat storage [J]. | APPLIED THERMAL ENGINEERING , 2023 , 231 . |
| MLA | Liu, Zhongbao et al. "Research on performance of radiant floor heating system based on heat storage" . | APPLIED THERMAL ENGINEERING 231 (2023) . |
| APA | Liu, Zhongbao , Wei, Ziyan , Teng, Ruonan , Sun, Han , Qie, Zhipeng . Research on performance of radiant floor heating system based on heat storage . | APPLIED THERMAL ENGINEERING , 2023 , 231 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
A single-bed finned tube adsorption refrigeration system model was established to compare the adsorption characteristics of three metal organic framework materials, MIL-101(Cr), MIL-101(Cr)/CaCl2-10%, MIL-101(Cr)/ CaCl2-20%. The change of material properties under different thickness/length/number of fins was characterized, and the most suitable adsorption bed structure for different materials was obtained. The results show that the number of fins has little effect on the COP and specific cooling power of the material in the system. Choosing thinner fins can improve the COP of the system. With the increase of fin height, the COP showed a trend of increasing first and then decreasing. The three materials, MIL101(Cr), MIL-101(Cr)/CaCl2-10%, MIL-101(Cr)/CaCl2-20%, obtained the highest COP when the fin heights were 50 mm, 60 mm, and 70 mm, respectively. The maximum specific cooling power was obtained when the fin heights were 20 mm, 60 mm, and 70 mm, which were 21.7 W/kg, 90.1 W/kg, and 174.5 W/kg, respectively. The height of the fin has a great influence on the performance of the system. When designing the adsorption bed, the appropriate fin height should be selected for the specific adsorbent.
Keyword ：
performance performance adsorption adsorption MIL-101(Cr) MIL-101(Cr) adsorbent adsorbent simulation simulation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Zhongbao , Li, Shijie , Zhao, Banghua et al. NUMERICAL STUDY ON THE PERFORMANCE OF ADSORPTION REFRIGERATION SYSTEM WITH FINNED BED STRUCTURE PAIRED WITH MOF-WATER AS WORKING FLUID [J]. | THERMAL SCIENCE , 2023 , 27 (4A) : 2723-2738 . |
| MLA | Liu, Zhongbao et al. "NUMERICAL STUDY ON THE PERFORMANCE OF ADSORPTION REFRIGERATION SYSTEM WITH FINNED BED STRUCTURE PAIRED WITH MOF-WATER AS WORKING FLUID" . | THERMAL SCIENCE 27 . 4A (2023) : 2723-2738 . |
| APA | Liu, Zhongbao , Li, Shijie , Zhao, Banghua , Sun, Han . NUMERICAL STUDY ON THE PERFORMANCE OF ADSORPTION REFRIGERATION SYSTEM WITH FINNED BED STRUCTURE PAIRED WITH MOF-WATER AS WORKING FLUID . | THERMAL SCIENCE , 2023 , 27 (4A) , 2723-2738 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Photovoltaic (PV) power generation, which converts sunlight into electricity, stands as a pivotal mode of solar energy utilization. The thermal effect poses a significant challenge for all types of PV panels under real operating conditions, as it diminishes both the photovoltaic conversion efficiency and the lifespan of the PV panels. This paper presents a novel passive cooling approach for silicon-based photovoltaic panels, employing night-time hygroscopic hydrogel adsorption, daytime desorption, and subsequent water evaporation for cooling. Both laboratory and outdoor experiments were conducted to validate this strategy. Experimental results reveal that under simulated laboratory light of 1 kW m- 2, the hydrogel cooling layer delivers an average cooling power of 288.2 W m- 2. It lowers the PV panel temperature by 9.9 degrees C and enhances both the maximum power and effi-ciency at equilibrium by 5.92% and 5.93%, respectively. Outdoor experiments in Beijing, China, during summer demonstrated that this method reduced the average daytime temperature of the PV plate by 7.1 degrees C and increased the average maximum power by 5.21%. The hydrogel layer's high hygroscopicity enables it to support passive cooling effectively all day. Passive cooling strategies for PV panels, leveraging the atmospheric water harvesting cycle, face fewer application constraints. They offer the potential to increase power generation and reduce CO2 emissions from PV plants both now and in the future.
Keyword ：
Panel temperature Panel temperature Solar energy Solar energy Water vapor sorption and evaporation Water vapor sorption and evaporation PV passive cooling PV passive cooling Hydrogel Hydrogel
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Yimo , Liu, Zhongbao , Wang, Zepeng et al. Photovoltaic passive cooling via water vapor sorption-evaporation by hydrogel [J]. | APPLIED THERMAL ENGINEERING , 2023 , 240 . |
| MLA | Liu, Yimo et al. "Photovoltaic passive cooling via water vapor sorption-evaporation by hydrogel" . | APPLIED THERMAL ENGINEERING 240 (2023) . |
| APA | Liu, Yimo , Liu, Zhongbao , Wang, Zepeng , Sun, Weiming , Kong, Fanzhao . Photovoltaic passive cooling via water vapor sorption-evaporation by hydrogel . | APPLIED THERMAL ENGINEERING , 2023 , 240 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Reducing the consumption of high-grade energy on the regeneration side is crucial to decreasing the energy consumption of the desiccant wheel system. Metal-organic framework desiccants exhibit superior moisture ab-sorption performance. However, there has been no research on the application of metal-organic framework materials in desiccant wheel systems for low-grade heat source regeneration. To address this research gap, this study applied a composite adsorbent of the metal-organic framework in a heat pump-desiccant wheel system and experimentally evaluated the performance of the heat pump-metal-organic framework desiccant wheel system using low-grade heat sources under different operating conditions. A comparison was made with electrically heated desiccant wheel systems and heat pump-desiccant wheel systems using traditional silica gel adsorbents. The results showed that the optimal desiccant wheel rotational speed was 8.63 r & sdot;h-1, and the optimal airflow was 300 m3 & sdot;h-1. The energy consumption of the heat pump-metal-organic framework desiccant wheel system was only 42.77% of that of the electrically heated desiccant wheel system, and its dehumidification energy factor was 2.07, which is higher than that of the heat pump-silica gel desiccant wheel system. This demonstrates the feasibility and efficiency of utilizing low-grade heat sources for regeneration using metal-organic framework desiccants in practical applications.
Keyword ：
Energy saving Energy saving Dehumidification Dehumidification Metal-organic framework Metal-organic framework Low-grade thermal energy Low-grade thermal energy Desiccant wheel Desiccant wheel
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Zhongbao , Gong, Haohui , Cheng, Chaojie et al. Experimental evaluation of metal-organic framework desiccant wheel combined with heat pump [J]. | APPLIED THERMAL ENGINEERING , 2023 , 236 . |
| MLA | Liu, Zhongbao et al. "Experimental evaluation of metal-organic framework desiccant wheel combined with heat pump" . | APPLIED THERMAL ENGINEERING 236 (2023) . |
| APA | Liu, Zhongbao , Gong, Haohui , Cheng, Chaojie , Qie, Zhipeng . Experimental evaluation of metal-organic framework desiccant wheel combined with heat pump . | APPLIED THERMAL ENGINEERING , 2023 , 236 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The water sorption and desorption properties of solid adsorbent materials are crucial in rotary dehumidification systems. Metal organic frameworks (MOFs) and hydrogels are mostly at the laboratory stage due to factors like the synthesis process and yield. In this study, we utilized an eco-friendly and large-scale synthesis method to prepare polyacrylamide (PAM) hydrogels (yielding approximately 500 mL from a single polymerization). Subsequently, PAM was then coated onto glass fiber paper (GFP), which serves as a commonly employed substrate in desiccant wheels. By incorporating the hygroscopic salt LiCl and optimizing the content of each component, the water sorption performance of the composite was notably improved. The water sorption and desorption performances, as well as cycling stability, were evaluated and compared with composites containing aluminum fumarate, LiCl, and GFP (AlFum-LiCl&GFP). The results revealed that PAM-LiCl&GFP outperformed AlFum-LiCl&GFP in terms of sorption capacity throughout various relative humidity (RH) levels. It achieved a water uptake of 1.06 g center dot g-1 at 25 degrees C and 30% RH, corresponding to a water sorption rate coefficient K of 15.32 x 10-4 s-1. Furthermore, the lower desorption temperature (60 degrees C) resulting in a desorption ratio of 82.6%, along with the excellent cycling stability and effective performance as a desiccant wheel module, provide evidence for the potential application of PAM-LiCl&GFP in desiccant wheels.
Keyword ：
dehumidification dehumidification polyacrylamide polyacrylamide aluminum fumarate aluminum fumarate desiccant wheel desiccant wheel water sorption water sorption
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Yimo , Liu, Zhongbao , Wang, Zepeng et al. Enhanced Water Sorption Performance of Polyacrylamide & Glass Fiber Paper Composites: Investigation and Comparison of Application in Desiccant Wheels [J]. | POLYMERS , 2023 , 15 (18) . |
| MLA | Liu, Yimo et al. "Enhanced Water Sorption Performance of Polyacrylamide & Glass Fiber Paper Composites: Investigation and Comparison of Application in Desiccant Wheels" . | POLYMERS 15 . 18 (2023) . |
| APA | Liu, Yimo , Liu, Zhongbao , Wang, Zepeng , Sun, Weiming . Enhanced Water Sorption Performance of Polyacrylamide & Glass Fiber Paper Composites: Investigation and Comparison of Application in Desiccant Wheels . | POLYMERS , 2023 , 15 (18) . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
The absorber is a key component of an absorption system, and its efficiency affects the performance of the overall system. This study summarizes and analyzes the development status of using additives to enhance heat and mass transfer. To address the problem of the low heat and mass transfer efficiency of absorbers, many researchers usually add additives to the circulation system of absorption chiller to enhance the heat and mass transfer processes. In this paper, the experimental studies on adding surfactants, nanoparticles, and salt compounds to traditional working fluid pairs are reviewed. Numerous research results show that the heat and mass transfer coefficients are enhanced after adding additives, and the cooling capacity is improved. Suggestions for enhancing heat and mass transfer in the absorption process are also presented in this paper.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Luning , Sun, Han , Liu, Zhongbao . Review of enhanced heat and mass transfer by additives [J]. | SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT , 2022 , 28 (10) : 1272-1292 . |
| MLA | Wang, Luning et al. "Review of enhanced heat and mass transfer by additives" . | SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT 28 . 10 (2022) : 1272-1292 . |
| APA | Wang, Luning , Sun, Han , Liu, Zhongbao . Review of enhanced heat and mass transfer by additives . | SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT , 2022 , 28 (10) , 1272-1292 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Solar energy is a kind of renewable energy with abundant resources and enormous reserves. Meanwhile, adsorption cooling technology can utilize natural refrigerants, thus also making this technology environmentally friendly. If solar energy can be effectively collected and utilized for heating in winter, then the environmental pollution caused by electricity and fossil energy consumption can be reduced. More importantly, considering engineering, the same solar device could provide cooling in the summer and heating in the winter. This study used parabolic trough and glass-metal vacuum heat collectors to conduct solar adsorption cooling and solar air heating experiments in summer and winter, respectively, to facilitate the complete and appropriate use of solar energy. Experimental results of solar adsorption cooling with silica gel as the adsorbent revealed that the coefficient of performance of the system reached 0.329. In addition, the influences of air flow rates and heat storage medium on the performance of the solar air heating system were investigated. Results revealed that the average and instantaneous efficiencies of the system considerably increased with the heat storage medium (i.e., water) filling in the annular cavity of the evacuated tube. The extended heating time also markedly increased by up to 170 min and was therefore of considerable practical value.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Yimo , Yuan, Zhongxian , Liu, Zhongbao . Experimental performance of a small solar system for adsorption cooling in summer and heating in winter [J]. | JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY , 2022 , 14 (1) . |
| MLA | Liu, Yimo et al. "Experimental performance of a small solar system for adsorption cooling in summer and heating in winter" . | JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY 14 . 1 (2022) . |
| APA | Liu, Yimo , Yuan, Zhongxian , Liu, Zhongbao . Experimental performance of a small solar system for adsorption cooling in summer and heating in winter . | JOURNAL OF RENEWABLE AND SUSTAINABLE ENERGY , 2022 , 14 (1) . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Phase change energy storage plays an important role in the green, efficient, and sustainable use of energy. Solar energy is stored by phase change materials to realize the time and space displacement of energy. This article reviews the classification of phase change materials and commonly used phase change materials in the direction of energy storage. Commonly used phase change materials in construction and their packaging methods are listed according to the properties of phase change materials. Through different packaging methods to enhance heat exchange, this work solves the problem of material leakage and summarizes the advantages and disadvantages of those methods through comparative analysis. The impact of macro-encapsulation and micro-encapsulation on material encapsulation are also outlined. The simulation and model construction methods of different packaging methods are reviewed. This research is dedicated to the comparative analysis of the selection of phase change materials and packaging methods in buildings a to actively promote the promotion and application of phase change energy storage in buildings.
Keyword ：
review review phase change materials phase change materials energy efficiency energy efficiency building building thermal energy storage thermal energy storage
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Zhongbao , Teng, Ruonan , Sun, Han . APPLICATION OF PHASE CHANGE ENERGY STORAGE IN BUILDINGS Classification of Phase Change Materials and Packaging Methods [J]. | THERMAL SCIENCE , 2022 , 26 (5) : 4315-4332 . |
| MLA | Liu, Zhongbao et al. "APPLICATION OF PHASE CHANGE ENERGY STORAGE IN BUILDINGS Classification of Phase Change Materials and Packaging Methods" . | THERMAL SCIENCE 26 . 5 (2022) : 4315-4332 . |
| APA | Liu, Zhongbao , Teng, Ruonan , Sun, Han . APPLICATION OF PHASE CHANGE ENERGY STORAGE IN BUILDINGS Classification of Phase Change Materials and Packaging Methods . | THERMAL SCIENCE , 2022 , 26 (5) , 4315-4332 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
涂覆MIL-101(Cr)干燥剂的翅片管换热器的实验研究
Keyword ：
干燥剂涂覆 干燥剂涂覆 MIL-101(Cr) MIL-101(Cr) 翅片管换热器 翅片管换热器 除湿性能 除湿性能
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 刘忠宝 , 韩君地 , 郎辉伟 et al. 涂覆MIL-101(Cr)干燥剂的翅片管换热器的实验研究 [J]. | 刘忠宝 , 2021 , 35 (1) : 1-12 . |
| MLA | 刘忠宝 et al. "涂覆MIL-101(Cr)干燥剂的翅片管换热器的实验研究" . | 刘忠宝 35 . 1 (2021) : 1-12 . |
| APA | 刘忠宝 , 韩君地 , 郎辉伟 , 制冷与空调(四川) . 涂覆MIL-101(Cr)干燥剂的翅片管换热器的实验研究 . | 刘忠宝 , 2021 , 35 (1) , 1-12 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
During the operation of an air-cooled refrigerator, a frost layer is formed on the surface of the evaporator, which diminishes the cooling capacity and coefficient of performance. This paper reports on the design of a new system using heat storage phase-change materials to alleviate the above problems. The new system not only uses the waste heat of the compressor housing to defrost, but also collects the heat of the condenser to provide domestic hot water, without the need for additional equipment to provide heat. Compared with electric defrosting, the average defrosting time and average total energy consumption of the new defrosting method are reduced by 37% and 74.3%, respectively, and the temperature fluctuation in the freezer is also weakened. In addition, about 4.5 L of water can also be heated to the temperature of domestic hot water in a single cycle, saving energy costs. Experimental results well prove the superiority of the new system in existing refrigerator products.
Keyword ：
energy savings energy savings defrosting defrosting refrigerator refrigerator phase-change material phase-change material
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Liu, Zhongbao , Cheng, Chaojie , Teng, Ruonan et al. RESEARCH ON DEFROSTING OF REFRIGERATOR USING PHASE CHANGE MATERIAL HEAT EXCHANGER [J]. | HEAT TRANSFER RESEARCH , 2021 , 52 (11) : 31-45 . |
| MLA | Liu, Zhongbao et al. "RESEARCH ON DEFROSTING OF REFRIGERATOR USING PHASE CHANGE MATERIAL HEAT EXCHANGER" . | HEAT TRANSFER RESEARCH 52 . 11 (2021) : 31-45 . |
| APA | Liu, Zhongbao , Cheng, Chaojie , Teng, Ruonan , Qi, Xin . RESEARCH ON DEFROSTING OF REFRIGERATOR USING PHASE CHANGE MATERIAL HEAT EXCHANGER . | HEAT TRANSFER RESEARCH , 2021 , 52 (11) , 31-45 . |
| Export to | NoteExpress RIS BibTex |
Export
| Results： |
Selected to |
| Format： |
