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ISSN 0254-0096 CN 11-2082/K
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2021, 42 (1): 112-116.
Abstract204)      PDF (2231KB)(1172)      
2020, 41 (12): 97-102.
Abstract152)      PDF (1776KB)(1133)      
2021, 42 (6): 409-418.
Abstract308)      PDF (6294KB)(984)      
OPTIMIZATION OF A HELIOSTAT FIELD LAYOUT USING ADAPTIVE GRAVITY SEARCH ALGORITHM
Gao Bo, Liu Jianxing, Sun Hao, Liu Erlin
2022, 43 (10): 119-125.    doi: 10.19912/j.0254-0096.tynxb.2021-0397
Abstract681)      PDF (3269KB)(351)      
To solve the problem of heliostat field layout optimization in tower CSP (Concentrating Solar Power) station, a method based on AGSA (Adaptive Gravity Search Algorithm) is proposed. According to the Campo layout rules, a dense initial heliostat field 1.5 times larger than the target heliostat field is established,and the radius of each row of heliostats is used as an input variable and the annual average efficiency is used as the evaluation criterion for the optimal layout of the heliostat field. In addition, a dynamic adjustment factor α is introduced into the gravitational search algorithm, which improves the algorithm's ability to solve high-dimensional search problems. Finally,taking the heliostat field of Gemasolar in Sevilla as an example to optimize the layout, and the results have suggested that the heliostat field optimized by the AGSA has a higher average annual efficiency.
RESEARCH STATUS AND APPLICATION PROSPECT OF PEM ELECTROLYSIS WATER TECHNOLOGY FOR HYDROGEN PRODUCTION
Ma Xiaofeng, Zhang Shuhan, He Yong, Zhu Yanqun, Wang Zhihua
2022, 43 (6): 420-427.    doi: 10.19912/j.0254-0096.tynxb.2022-0360
Abstract911)      PDF (1862KB)(351)      
Based on the performance differences and advantages and disadvantages of four kinds of water electrolysis hydrogen production technologies, the research status of membrane electrode, porous transport layer and bipolar plate in PEM electrolytic cell is summarized and prospected. Finally, combining with the advantages of PEM electrolytic water hydrogen production technology, the cost trend of this technology is analyzed and the application scenarios and development direction of this technology are predicted.
2021, 42 (9): 184-189.
Abstract270)      PDF (9538KB)(327)      
2021, 42 (8): 235-242.
Abstract85)      PDF (5182KB)(339)      
2020, 41 (6): 188-195.
Abstract127)      PDF (1126KB)(806)      
RESEARCH PROGRESS OF SOLID-STATE HYDROGEN STORAGE TEACHNOLOGY
Zhang Xiaofei, Jiang Lijun, Ye Jianhua, Wu Yuanfang, Guo Xiumei, Li Zhinian, Li Haiwen
2022, 43 (6): 345-354.    doi: 10.19912/j.0254-0096.tynxb.2022-0536
Abstract1010)      PDF (1989KB)(275)      
The research progress of solid-state hydrogen storage technology is reviewed, including hydrogen storage materials, hydrogen storage devices and application status. Some hydrogen storage alloys have been successfully used in solid-state hydrogen storage devices. The high-capacity reversible hydrogen storage materials under mild hydrogen absorption and desorption conditions is the focus of current research and development. The optimized design of the hydrogen storage device effectively improves the rapid heat transfer characteristics and the safety performance. Hydrogen storage devices have been applied in the fields of distributed energy supply and motor vehicles. However, it is still necessary to further realize the coordination of rapid response, safety, reliability, and high hydrogen storage density of the hydrogen storage system.
2020, 41 (12): 69-76.
Abstract233)      PDF (2056KB)(1700)      
2021, 42 (9): 62-69.
Abstract226)      PDF (1580KB)(346)      
PREPARATION OF CATALYST FOR FUEL CELL BY PHYSICAL METHOD
Liu Yiyang, Zhou Xiaochun
2022, 43 (6): 295-305.    doi: 10.19912/j.0254-0096.tynxb.2022-0613
Abstract95)      PDF (1852KB)(232)      
Continued advances in proton exchange membrane fuel cells offer a promising solution to current energy needs. Current research is focused on fabrication techniques that improve performance and reduce overall cost. Catalyst deposition on membrane electrode(MEA) assemblies has been used by a number of techniques over the last few decades, divided into two main categories: chemical and physical methods. Of these, physical methods are widely used due to the simplicity of the preparation process and the uniformity of the deposition distribution. The aim of this paper is to review many of the main techniques that have been published in order to demonstrate the wide variety of physical methods of catalyst preparation.
2020, 41 (4): 14-19.
Abstract167)      PDF (1215KB)(522)      
PHOTOVOLTAIC POWER PREDICTION BASED ON COMBINED XGBOOST-LSTM MODEL
Tan Haiwang, Yang Qiliang, Xing Jiangchun, Huang Kefeng, Zhao Shuo, Hu Haoyu
2022, 43 (8): 75-81.    doi: 10.19912/j.0254-0096.tynxb.2021-0005
Abstract595)      PDF (1694KB)(185)      
A combination model based on XGBoost(eXtreme Gradient Boosting) model and LSTM(Long Short Term Memory) model is proposed in this paper. According to the characteristics of short-term photovoltaic power generation, the XGBoost model and the LSTM model are established respectively in the first place. Then, the XGBoost model is used for preliminary prediction to add features, and the error reciprocal method is used to combine the two models for prediction. Data sets from 2018 big data processing and analysis contest of photovoltaic power station artificial intelligence operation and maintenance are selected for experimental evaluation. The final result shows that the root-mean-square error (RMSE) of the constructed XGBoost-LSTM combination model is 0.214. Compared with the Random Forest, GBDT model, XGBoost model, LSTM model, the proposed method has higher prediction accuracy.
2020, 41 (12): 132-137.
Abstract162)      PDF (1189KB)(559)      
2019, 40 (11): 3078-3085.
Abstract102)      PDF (2246KB)(573)      
2021, 42 (7): 146-151.
Abstract125)      PDF (2155KB)(339)      
2020, 41 (3): 8-14.
Abstract162)      PDF (1038KB)(453)      
2021, 42 (9): 210-217.
Abstract80)      PDF (1677KB)(279)      
2020, 41 (10): 223-228.
Abstract112)      PDF (986KB)(355)