Query：
学者姓名：王伟
Refining：
Year
Type
Indexed by
Source
Complex
Co-Author
Language
Clean All
Abstract ：
Defrosting performance evaluation is an important aspect for pre-delivery inspection of air source heat pumps (ASHPs). According to GB/T 25127-2020 and ANSI/AHRI 550/590-2023, defrosting duration ratio (alpha) alpha ) should not exceed 20 % of the frosting-defrosting cycle. This value has remained unchanged for over 20 years. However, with the rapid iteration of defrosting technology, the alpha of new ASHPs has been decreased significantly. Hence, the applicability of this index value deserves to be deliberated. To solve this issue, a method for determining the optimal alpha was proposed firstly. Then, the alpha under different characteristic index ( CICO ) values at 2/1 degrees C and 2/0 degrees C were investigated at the optimal and original defrosting initiating time point ( t opt , t ori ), using twelve ASHPs from nine manufacturers. Results indicates the frosting duration (tf) t f ) is directly proportional to defrosting duration (tdf), t df ), at the same ambient air condition and CICO. . For Unit C, when t f is increased from 30.0 min to 60.0 min and 90.0 min at the CICO of 10.0 x 106, 6 , t df increases from 2.43 min to 3.20 min and 4.03 min at 2/1 degrees C, respectively. No matter at t opt nor t ori , the range of alpha is 1.4%-9.9 %. It is suggested that the 10 % is used as the new index for defrosting performance evaluation of ASHP.
Keyword ：
Characteristic index ( CICO ) Characteristic index ( CICO ) Defrosting Defrosting Optimal defrosting duration ratio Optimal defrosting duration ratio Air source heat pump Air source heat pump Frosting Frosting
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Li, Zhaoyang , Wei, Wenzhe , Wang, Wei et al. Determination of the defrosting duration ratio for defrosting performance evaluation of air source heat pump [J]. | JOURNAL OF BUILDING ENGINEERING , 2024 , 95 . |
| MLA | Li, Zhaoyang et al. "Determination of the defrosting duration ratio for defrosting performance evaluation of air source heat pump" . | JOURNAL OF BUILDING ENGINEERING 95 (2024) . |
| APA | Li, Zhaoyang , Wei, Wenzhe , Wang, Wei , Sun, Yuying , Wang, Shiquan , Tang, Rui et al. Determination of the defrosting duration ratio for defrosting performance evaluation of air source heat pump . | JOURNAL OF BUILDING ENGINEERING , 2024 , 95 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
改善空气源热泵的抑霜性能对提升空气源热泵的供暖效果具有重要的意义，但由于缺少设计指导准则，热泵厂家无法通过压缩机、室外换热器和室外风机等核心部件的优化配置研发出抑霜型空气源热泵，导致现有空气源热泵整体抑霜性能差，实际供暖过程中结除霜问题严重，供暖效果严重偏离预期。为了量化不同核心部件配置下空气源热泵的抑霜性能，本文对来自不同厂家的8台不同本构配置的空气源热泵热水机进行了实验研究，通过分析抑霜性能与本构配置之间的关系，建立了以制热能力衰减5%运行时长为评价指标的抑霜性能预测模型，该模型可有效预测不同本构配置下空气源热泵热水机的抑霜性能，相对误差在10%之内，为热泵厂家研发抑霜型机组提供参考。
Keyword ：
抑霜性能 抑霜性能 本构配置 本构配置 空气源热泵 空气源热泵 预测模型 预测模型 结除霜 结除霜
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 张佳明 , 孙育英 , 魏文哲 et al. 空气源热泵热水机抑霜性能预测模型研究 [J]. | 建筑科学 , 2024 , 40 (02) : 49-55 . |
| MLA | 张佳明 et al. "空气源热泵热水机抑霜性能预测模型研究" . | 建筑科学 40 . 02 (2024) : 49-55 . |
| APA | 张佳明 , 孙育英 , 魏文哲 , 王伟 , 李子坤 . 空气源热泵热水机抑霜性能预测模型研究 . | 建筑科学 , 2024 , 40 (02) , 49-55 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Accurate multi-energy load forecasting is prerequisite for achieving balance between supply and demand in building energy system. The continuous development of building flexibility control techniques has led to increased complexity and variability in characteristics of multi-energy flexibility loads under application of various building flexibility control strategies. Existing load forecasting methods lack the ability to recognize the flexibility features and face challenges in considering complex coupling relationships and variable characteristics of multi-energy flexibility loads. To address this gap, we propose a multi-energy flexibility load forecasting method, denoted as (BFFR-MTL-LSTM), which incorporates building flexibility feature recognition (BFFR) and multi-task learning (MTL) model utilizing Long Short-Term Memory (LSTM) neural networks as the shared layer. A novel ToU-K-means method combining ToU with K-means algorithm is proposed firstly as BFFR technique to accurately recognize the flexibility features under various energy consumption patterns. The forecasting accuracy of proposed method is validated using actual operational data under various energy consumption patterns with average R2 of 0.973. Additionally, through comparisons with numerous existing models, the proposed method demonstrates a forecasting accuracy improvement ranging from 33 % to 47 %. This validation supports that the proposed method adeptly recognizes energy consumption patterns, resulting in more accurate forecasts of multi-energy flexibility loads.
Keyword ：
Building flexibility feature Building flexibility feature Long short-term memory Long short-term memory Multi-energy load forecasting Multi-energy load forecasting K -means clustering analysis K -means clustering analysis Multi-task learning Multi-task learning
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Fan, Pengdan , Wang, Dan , Wang, Wei et al. A novel multi-energy load forecasting method based on building flexibility feature recognition technology and multi-task learning model integrating LSTM [J]. | ENERGY , 2024 , 308 . |
| MLA | Fan, Pengdan et al. "A novel multi-energy load forecasting method based on building flexibility feature recognition technology and multi-task learning model integrating LSTM" . | ENERGY 308 (2024) . |
| APA | Fan, Pengdan , Wang, Dan , Wang, Wei , Zhang, Xiuyu , Sun, Yuying . A novel multi-energy load forecasting method based on building flexibility feature recognition technology and multi-task learning model integrating LSTM . | ENERGY , 2024 , 308 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
为应对严重的水污染问题，污水排放标准越来越严格。污染物的深度去除，通常需要消耗大量的电能并经常性投加大量的化学药剂，这导致污水厂间接碳排放量巨大，环境效益降低，违背低碳可持续发展的原则。污水碳中和的达成可通过节能降耗、资源回收以及自身产能来实现。在能源紧缺，实现碳中和迫在眉睫的背景下，全面推进节能降耗技术的应用是最现实且有望短期实现的策略。脱氮是目前城市污水处理厂的关键任务，能耗占比大，本文即针对现有的污水脱氮途径和技术，从降低能源消耗以及实现资源回收两个方面出发，对能耗低、具有可持续性且具有应用前景的工艺进行总结。重点对厌氧氨氧化工艺（Anaerobic ammonium oxidation, Anammox），以及能实现能源回收的CANDO(Coupled aerobic-anoxic nitrous decomposition operation)工艺进行更为全面系统的综述，指出现有的技术问题和研究瓶颈，以期为污水脱氮技术的低碳发展及工程应用提供参考。
Keyword ：
污水 污水 可持续 可持续 碳中和 碳中和 厌氧氨氧化 厌氧氨氧化 脱氮 脱氮
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王伟 , 王明刚 , 刘丽娜 et al. 面向碳中和的污水低能耗脱氮及氮回收技术探讨 [J]. | 水处理技术 , 2023 , 49 (04) : 1-6 . |
| MLA | 王伟 et al. "面向碳中和的污水低能耗脱氮及氮回收技术探讨" . | 水处理技术 49 . 04 (2023) : 1-6 . |
| APA | 王伟 , 王明刚 , 刘丽娜 , 张鑫 , 彭永臻 . 面向碳中和的污水低能耗脱氮及氮回收技术探讨 . | 水处理技术 , 2023 , 49 (04) , 1-6 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
For variable speed (VS) space heating air source heat pump (ASHP) unit, its different operation speed combi-nations may significantly affect the frosting suppression and heating performances. However, currently there is no frosting suppression operation method for VS ASHP units, so that their frosting suppression ability using different speed combinations is not fully utilized. Therefore, a novel frosting suppression operation method based on the frosting suppression performance map for VS ASHPs has been proposed, and its development through experimental is reported in this paper. Firstly, a novel operation method to guide the frosting suppression operation for VS ASHPs is proposed. Secondly, an experimental setup with two VS experimental ASHP units, test conditions, and nine study cases are described. Thirdly, the speed combinations that led to different frosting suppression potentials but with the same output heating capacity were determined using the developed frosting suppression performance map, and comparative tests were carried out. It is shown that the use of the proposed novel frosting suppression operation method with the optimal coefficient of performance (COP), which can in-crease the total output heating capacity (Q) by 15% and the COP by 25%. The proposed novel operation method was straightforward and simple to implement, which could contribute to the further development of frosting suppression operation for ASHPs.
Keyword ：
Variable speed Variable speed Frosting suppression performance map Frosting suppression performance map Coefficient of performance Coefficient of performance Frosting suppression operation method Frosting suppression operation method Air source heat pump Air source heat pump
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Lin, Yao , Wang, Wei , Luo, Jianfei et al. A novel variable speed ASHP frosting suppression operation method based on the frosting suppression performance map [J]. | APPLIED THERMAL ENGINEERING , 2023 , 234 . |
| MLA | Lin, Yao et al. "A novel variable speed ASHP frosting suppression operation method based on the frosting suppression performance map" . | APPLIED THERMAL ENGINEERING 234 (2023) . |
| APA | Lin, Yao , Wang, Wei , Luo, Jianfei , Sun, Yuying , Deng, Shiming . A novel variable speed ASHP frosting suppression operation method based on the frosting suppression performance map . | APPLIED THERMAL ENGINEERING , 2023 , 234 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
流体机械综合性能提升有利于提高能源系统能效，引入多目标优化方法对流体机械展开性能优化研究，可以进一步改善流体机械整体性能。因此针对多目标优化方法在流体机械性能优化中的应用展开了综述。首先总结了多种流体机械多目标性能优化现状，其次简要介绍了多目标优化的基础概念，并概述了常用的几种优化算法及其在流体机械中的相关应用。流体机械多目标优化的基础是性能预测，性能预测方法的优劣对于多目标优化效果有着决定性影响。对流体机械性能预测方法展开了分析讨论，重点探讨了近似模型技术，详细介绍了最常用的几种近似模型并总结其在流体机械优化中的应用。最后提出了目前优化中存在的问题，为日后流体机械多目标优化研究提供参考。
Keyword ：
Multi-Objective Optimization Multi-Objective Optimization Approximation Model Approximation Model 多目标优化 多目标优化 Optimization Algorithm Optimization Algorithm Fluid Machinery Fluid Machinery 近似模型 近似模型 流体机械 流体机械 优化算法 优化算法
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 陶粤婷 , 王伟 , 吴玉庭 et al. 多目标优化在流体机械中的应用研究综述 [J]. | 可持续能源 , 2023 , 13 (6) : 69-80 . |
| MLA | 陶粤婷 et al. "多目标优化在流体机械中的应用研究综述" . | 可持续能源 13 . 6 (2023) : 69-80 . |
| APA | 陶粤婷 , 王伟 , 吴玉庭 , 马重芳 . 多目标优化在流体机械中的应用研究综述 . | 可持续能源 , 2023 , 13 (6) , 69-80 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Defrosting operation is always used to solve its frosting problem at a high humidity environment for air source heat pump units (ASHPs), and at the end of defrosting operation, the residual melted frost may exist on the surface of outdoor coil and freeze into ice in sequent frosting. However, till now, as the residual melted frost icing environment is difficult to create, its quantitative influences on the heating performance of ASHPs is still unknown, especially at different icing levels. To resolve this issue, a control strategy was firstly proposed to make it possible for the residual melted frost to ice. Then, based on the control strategy, the effect of five different icing levels on operating performances of an ASHP unit were investigated. Results indicated that ice can promote the frost formation, and the operating performances of ASHP unit were significantly affected by different icing levels. When the percentage of iced outdoor coil surface was increased from 0% to 15% and 35%, the output heating capacity of ASHP unit was decreased by 11.2% and 23.8%, and meanwhile the COP of ASHP unit was decreased by 7.7% and 16.1%, respectively. The results can assist with the defrosting control optimization of practical products.
Keyword ：
Defrosting termination temperature Defrosting termination temperature Air source heat pump Air source heat pump Frosting Frosting Melted frost icing Melted frost icing Water retention Water retention
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Li, Zhaoyang , Wei, Wenzhe , Wang, Wei et al. Experimental study on the effects of melted frost icing on the operating performances of air source heat pump [J]. | APPLIED THERMAL ENGINEERING , 2023 , 238 . |
| MLA | Li, Zhaoyang et al. "Experimental study on the effects of melted frost icing on the operating performances of air source heat pump" . | APPLIED THERMAL ENGINEERING 238 (2023) . |
| APA | Li, Zhaoyang , Wei, Wenzhe , Wang, Wei , Sun, Yuying , Wang, Shiquan , Lin, Yao et al. Experimental study on the effects of melted frost icing on the operating performances of air source heat pump . | APPLIED THERMAL ENGINEERING , 2023 , 238 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Electrochromic (EC) glazing provides a promising solution to actively adjusting the sunlight and radiant heat through windows in response to building visual and thermal environmental requirements, and control strategies play a critical role in the application of EC technology in buildings. However, there is a conflict between the visual and thermal environmental requirements for EC regulation during a cooling season. To solve this problem, this paper developed a predictive control strategy for EC glazing. It was achieved based on two theoretical models which could predict the energy performance of EC glazing at different tint states, including the solar radiation heat transmitted through the glazing and lighting energy consumption. The optimum glazing state was determined based on real-time minimized energy consumption. Study results showed that the predictive control strategy outperformed the rule-based control strategy, with percentage energy saving of an office room in Beijing, China from 8.04% to 12.78% over an entire cooling season. In addition, the paper evaluated the energy-saving of using EC glazing under the predictive control strategy in 28 Chinese cities. The results indicated that EC glazing was highly applicable in most of cities with energy saving from 2.35 kWh/m2 to 5.04 kWh/m2 over an entire cooling season. © 2022
Keyword ：
EC glazing; Energy saving; Predictive control strategy; Thermal environment; Visual environment EC glazing; Energy saving; Predictive control strategy; Thermal environment; Visual environment
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Sun, Y. , Hao, Y. , Wang, D. et al. A predictive control strategy for electrochromic glazing to balance the visual and thermal environmental requirements: Approach and energy-saving potential assessment [J]. | Renewable Energy , 2022 , 194 : 334-348 . |
| MLA | Sun, Y. et al. "A predictive control strategy for electrochromic glazing to balance the visual and thermal environmental requirements: Approach and energy-saving potential assessment" . | Renewable Energy 194 (2022) : 334-348 . |
| APA | Sun, Y. , Hao, Y. , Wang, D. , Wang, W. , Deng, S. , Qi, H. et al. A predictive control strategy for electrochromic glazing to balance the visual and thermal environmental requirements: Approach and energy-saving potential assessment . | Renewable Energy , 2022 , 194 , 334-348 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
投加外碳源是污水厂尾水深度脱氮的重要手段.为充分对比多种碳源在极限脱氮条件下的性能及经济性，以及碳源对微生物种群结构的影响，选取甲醇、乙醇、葡萄糖和乙酸钠这4种单碳源，并采用反应速率较高的乙酸钠和乙醇与价格便宜的葡萄糖配制成4种复合碳源进行研究.结果表明，所有系统均能满足出水ρ(NO~-_x-N)≤1.0mg·L~(-1)的要求.单碳源系统，乙醇反应速率最快，投加量最省，费用最低.复合碳源系统，乙酸钠/葡萄糖(1∶1)在COD/ρ(N)为6时，与乙酸钠/葡萄糖(1∶3)、乙醇/葡萄糖(1∶1)和乙醇/葡萄糖(1∶3)在COD/ρ(N)为9、 10和10时的效果相当，且乙酸钠/葡萄糖(1∶1)系...
Keyword ：
16S rRNA 16S rRNA 尾水 尾水 反硝化 反硝化 微生物群落 微生物群落 碳源 碳源
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王伟 , 赵中原 , 张鑫 et al. 不同外碳源对尾水极限脱氮性能及微生物群落结构的影响 [J]. | 环境科学 , 2022 , 43 (09) : 4717-4726 . |
| MLA | 王伟 et al. "不同外碳源对尾水极限脱氮性能及微生物群落结构的影响" . | 环境科学 43 . 09 (2022) : 4717-4726 . |
| APA | 王伟 , 赵中原 , 张鑫 , 由志鹏 , 黄子晋 , 彭永臻 . 不同外碳源对尾水极限脱氮性能及微生物群落结构的影响 . | 环境科学 , 2022 , 43 (09) , 4717-4726 . |
| Export to | NoteExpress RIS BibTex |
Abstract ：
Building energy modeling, also known as building energy simulation, has developed rapidly in recent years and plays a crucial role in building life-cycle analysis. It can be employed in the design phase to predict the energy consumption of different design schemes and evaluate various control and retrofitting measures at the operation stage. In such simulations, it is commonly understood and accepted that the simulated relative differences are more reliable than the predictions of absolute energy results. However, whether this common understanding is true is yet to be thoroughly investigated. In this study, we investigate the simulated relative differences and the extent to which they are affected by the degree of model input deviation. Simulation and Monte Carlo approaches are adopted for the analysis. The results indicate that the simulated relative differences are not as reliable as expected, and the outputs strongly depend on the degree of the model input deviation. When the degree of deviation is less than 15% or the model inputs are within reasonable ranges, the simulated relative differences match the baseline obtained using Monte Carlo simulations. Moreover, the model's error indicators meet the requirements of the ASHRAE Guideline 14-2014 when the degree of input deviation is below 15%.
Keyword ：
EnergyPlus EnergyPlus building energy simulation building energy simulation simulated relative differences simulated relative differences Monte Carlo simulation Monte Carlo simulation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Dan , Pang, Xiufeng , Wang, Wei et al. Evaluation of the relative differences in building energy simulation results [J]. | BUILDING SIMULATION , 2022 , 15 (11) : 1977-1987 . |
| MLA | Wang, Dan et al. "Evaluation of the relative differences in building energy simulation results" . | BUILDING SIMULATION 15 . 11 (2022) : 1977-1987 . |
| APA | Wang, Dan , Pang, Xiufeng , Wang, Wei , Wan, Chuan , Wang, Gang . Evaluation of the relative differences in building energy simulation results . | BUILDING SIMULATION , 2022 , 15 (11) , 1977-1987 . |
| Export to | NoteExpress RIS BibTex |
Export
| Results： |
Selected to |
| Format： |
