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Evaluating Thermal and Lighting Energy Performance of Shading Devices on Kinetic Façades

Dong-Seok Lee, Sung-Han Koo, Yoon-Bok Seong, Jae-Hun Jo
2016 Sustainability  
Using the calculation methods, the optimal operation scenario for the movable shading devices was presented which can minimize the solar heat gain and lighting energy requirement.  ...  The results showed that the optimal operation scenario suggested in this study can potentially deliver effective energy performance.  ...  In addition, through the derived thermal and lighting energy performance evaluation, optimal operation scenario guidelines were proposed for each shading device type according to the change in time.  ... 
doi:10.3390/su8090883 fatcat:7bzwuwh4ibbctjtf3rp5tkudoy

Optimization of Maximum Power Point Tracking Flower Pollination Algorithm for a Standalone Solar Photovoltaic System

Muhammad Mateen Afzal Awan, Tahir Mahmood
2020 Mehran University Research Journal of Engineering and Technology  
Comparison of the proposed OFPA (Optimized Flower Pollination Algorithm) and the existing FPAs is performed for zero shading condition, weak PSC, strong PSC, and changing weather conditions.  ...  OFPA is also tested for changing weather conditions (entering from Case-1 to Cae-3) and it retains its outstanding performance in the changing weather conditions.  ...  CONCLUSION An optimized FPA algorithm is Proposed for GMPP tracking in PSC.  ... 
doi:10.22581/muet1982.2002.05 fatcat:jzszsohdyrathpu73ifsrupay4

Heating, Cooling, and Lighting Energy Demand Simulation Analysis of Kinetic Shading Devices with Automatic Dimming Control for Asian Countries

Byungyun Lee
2019 Sustainability  
Kinetic operation was the most applicable in Seoul, where seasonal optimal operation was required for both types of kinetic shadings.  ...  This study developed a theoretical methodology for producing an optimal positioning algorithm targeting minimizing total energy demands of kinetic shading devices; the control algorithms for hourly operation  ...  Kinetic Operation Frequency Monthly frequencies of the optimized position or angle for each type of kinetic shading in the three cities were analyzed through counting the monthly frequency of each fixed-type  ... 
doi:10.3390/su11051253 fatcat:tjxl2y2nbjewjhp2ihn5h3ucmm

A Bioeconomic Model of Ecosystem Services Provision: Coffee Berry Borer and Shade-grown Coffee in Colombia

Shady S. Atallah, Miguel I. Gómez, Juliana Jaramillo
2018 Ecological Economics  
The optimal shading level is 25% in the baseline scenario.  ...  but only for shade cover levels between 11% and 34%.  ...  optimal shade; 10% change in ENPV at new optimal shading level compared to the baseline), followed by the yield reduction parameter (20% optimal shade; 3% change in ENPV compared to the baseline).  ... 
doi:10.1016/j.ecolecon.2017.08.002 fatcat:a3lravo26zeivdcdfl2lbl3vg4

Smart Global Maximum Power Point Tracking Controller of Photovoltaic Module Arrays

Long-Yi Chang, Yi-Nung Chung, Kuei-Hsiang Chao, Jia-Jing Kao
2018 Energies  
Through the optimization method, the weighting value and cognition learning factor decreased with an increasing number of iterations, whereas the social learning factor increased, thereby enhancing the  ...  This study first explored the effect of shading on the output characteristics of modules in a photovoltaic module array.  ...  This method is advantageous for simple interpretation but, when the atmospheric conditions change substantially, it cannot track the updated maximum power point.  ... 
doi:10.3390/en11030567 fatcat:v4p7xeg7wzcp5jmng5vrzfh3am

Influence of the Passive Design of a Building Facade on the Indoor Thermal Comfort of Residential Buildings

Pengfei Zhou, Chi Zhang, Jiang Wang, R. Weerasinghe, C. Fang
2021 E3S Web of Conferences  
This research also analyses the influences of changing window glazing type, adding additional shading devices and changing the material of the exterior wall on indoor thermal comfort.  ...  Therefore, the indoor thermal comfort of a building can be considerably improved through effective passive designs of the building facade.  ...  Optimization design includes replacing the common single glass with Low-E double glass for the external window, adding horizontal shading devices to the vertical shading devices, forming integrated shading  ... 
doi:10.1051/e3sconf/202123703006 fatcat:b2uskdehk5cftcoiool5qkwkwe

Design of adaptive solar shading system based on the Cuboctahedron

Ana-Maria Graur, Technical University of Cluj-Napoca, Faculty of Architecture and Urban Planning, Cluj-Napoca, Cluj, Romania
2022 Revista Romana de Inginerie Civila/Romanian Journal of Civil Engineering  
kinetic shading system will have on the design of the building facade.  ...  The purpose of the study is to provide an overview of the main parameters that determine the geometry and design of the system, the kinematic character of the shading system, and also the impact that the  ...  Through the proposed design for this shading system, the geometry of the facade is changed due to the kinetic structure, which responds passively to the fluctuations of light intensity.  ... 
doi:10.37789/rjce.2022.13.2.6 fatcat:m3rqhxb2jfdhdpg2dklo2h425m

Comparative Study of Optimal PV Array Configurations and MPPT under Partial Shading with Fast Dynamical Change of Hybrid Load

Tarek A. Boghdady, Yasmin E. Kotb, Abdullah Aljumah, Mahmoud M. Sayed
2022 Sustainability  
The PV system can be compromised based on the shading pattern as well as the shading area. Thus, the need for a solution that can deal with non-uniform irradiance has increased significantly.  ...  The proposed PV array is 4×4 with a fixed location, yet changing electrical connections.  ...  The configuration of the PV array will be changed based on the different PS cases to reach the optimum topology for the system.  ... 
doi:10.3390/su14052937 fatcat:mpwjb56bvfgqvdl253avql72ba

Research on the Performance-Based Parameter of Horizontal Visor of Certain Wall Relative to the Sun Zenith Angle

Jian Gao, Jian Tang
2016 International Journal of Multimedia and Ubiquitous Engineering  
The optimum width for the southern shading of local buildings can be calculated according to the law of solar altitude change over time.  ...  The present study optimized the design of the horizontal shading on the basis of the traditional design.  ...  visor have same shadow area, same effect of shading (Figure 12 ).  ... 
doi:10.14257/ijmue.2016.11.4.27 fatcat:ntprgrmx4zbjvatzdjrxuutehe

Evaluating the Community Land Model in a pine stand with shading manipulations and 13CO2 labeling

J. Mao, D. M. Ricciuto, P. E. Thornton, J. M. Warren, A. W. King, X. Shi, C. M. Iversen, R. J. Norby
2016 Biogeosciences  
Over the 3-week treatment period, CLM4 generally reproduced the impacts of shading on soil moisture changes, relative change in stem carbon, and soil CO<sub>2</sub> efflux rate.  ...  Transpiration under moderate shading was also simulated well by the model, but even with optimization we were not able to simulate the high levels of transpiration observed in the heavy shading treatment  ...  Oak Ridge National Laboratory is managed by UT-BATTELLE for DOE under contract DE-AC05-00OR22725. Edited by: T. Keenan  ... 
doi:10.5194/bg-13-641-2016 fatcat:a5exwem6d5bh7luoioc23n5qkm

A Parameterized Design Method for Building a Shading System Based on Climate Adaptability

Shiliang Wang, Qun Zhang, Peng Liu, Rui Liang, Zitian Fu
2022 Atmosphere  
In this study, typical parametric models for external shading are designed.  ...  Furthermore, indoor performance objectives based on light environment analysis are proposed, and Ladybug Tools and the genetic algorithm (GA) are used for optimization and verification.  ...  Solar radiation directly affects the design of the shading system in the following three ways: (1) solar radiation passes through windows and changes the indoor temperature.  ... 
doi:10.3390/atmos13081244 fatcat:cbmn66prrrhlxgkpsk3bosvu6u

An Evaluation of the PV Integrated Dynamic Overhangs Based on Parametric Performance Design Method: A Case Study of a Student Apartment in China

Weifan Long, Xiaofei Chen, Qingsong Ma, Xindong Wei, Qiao Xi
2022 Sustainability  
to the optimal angles and heights.  ...  It was, firstly, calibrated through an actual experiment which was carried out in Qingdao and, secondly, used to simulate the energy consumption and generation of the three PVSD strategies in relation  ...  Acknowledgments: We would like to express our gratitude to the editors and reviewers for their thoughtful comments and constructive suggestions on improving the quality of the paper.  ... 
doi:10.3390/su14137808 fatcat:fgmiab2ixzcy7io5je3z7ugtie

A Pareto-based multi-objective optimization algorithm to design energy-efficient shading devices

Marina Khoroshiltseva, Debora Slanzi, Irene Poli
2016 Applied Energy  
h i g h l i g h t s We present a multi-objective optimization algorithm for shading design. We combine Harmony search and Pareto-based procedures.  ...  In order to identify the set of optimal shading devices that allow a low energy consumption of the dwelling while maintaining high levels of thermal and lighting comfort for the inhabitants we derive a  ...  We acknowledge Roberto Fedrizzi, Coordinator of the project, for his useful contribution and advice.  ... 
doi:10.1016/j.apenergy.2016.05.015 fatcat:fxgwbtmhezexfnkdcmqcysy5te

Daylight performance of an adaptive façade shading system integrated on a multi-storey office building

A. Couvelas, M.C. Phocas, M. Matheou, D. Olmez
2018 Zenodo  
The simulation analysis indicates that the adaptive façade system provides an optimal and functional lighting for indoor comfort while preventing the façade from overheating.  ...  Future research refers to the optimization of the thermal performance and ventilation of the proposed adaptive façade system.  ...  Optimization and effectiveness of the external shading system may thus be obtained through its ability to adapt to changing climatic conditions.  ... 
doi:10.5281/zenodo.3564432 fatcat:i3or4tp2sfbqvena5xpydw5q6q

Optimal switch configuration design for reconfigurable photovoltaic modules

Xue Lin, Yanzhi Wang, Massoud Pedram, Naehyuck Chang
2014 2014 IEEE PES General Meeting | Conference & Exposition  
These techniques can adaptively change the PV module configuration according to the partial shading pattern.  ...  passing through that switch, in a reconfigurable PV module.  ...  Then we solve the PV system design optimization problem, which determines the optimal PV macro-cell size such that the PV system achieves the highest performance enhancement for combating partial shading  ... 
doi:10.1109/pesgm.2014.6938857 fatcat:gorequ7yo5h3jedzpljhart6lm
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