Spatial layout optimization for solar photovoltaic (PV) panel installation

2020 ◽  
Vol 150 ◽  
pp. 1-11
Author(s):  
Qing Zhong ◽  
Daoqin Tong
Keyword(s):  
Spatial Layout ◽  
Layout Optimization ◽  
Solar Photovoltaic ◽  
Pv Panel

scholarly journals New Design of Solar Photovoltaic and Thermal Hybrid System for Performance Improvement of Solar Photovoltaic

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Ridwone Hossain ◽  
Al Jumlat Ahmed ◽  
Sheik Md Kazi Nazrul Islam ◽  
Nirupam Saha ◽  
Preetom Debnath ◽  
...  
Keyword(s):  
Hybrid Systems ◽  
Energy Conversion Efficiency ◽  
Open Circuit ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Thermal Systems ◽  
Energy Technologies ◽  
Pv Panel ◽  
Average Improvement ◽  
New Type

Solar photovoltaic (PV) and solar thermal systems are most widely used renewable energy technologies. Theoretical study indicates that the energy conversion efficiency of solar photovoltaic gets reduced about 0.3% when its temperature increases by 1°C. In this regard, solar PV and thermal (PVT) hybrid systems could be a solution to draw extra heat from the solar PV panel to improve its performance by reducing its temperature. Here, we have designed a new type of heat exchanger for solar PV and thermal (PVT) hybrid systems and have studied the performance of the system. The PVT system has been investigated in comparison with an identical solar PV panel at outdoor condition at Dhaka, Bangladesh. The experiments show that the average improvement of open circuit voltage (Voc) is 0.97 V and the highest improvement of Voc is 1.3 V. In addition, the overall improvement of output power of solar PV panel is 2.5 W.

scholarly journals Development of a Composite Model for Simulating Landscape Pattern Optimization Allocation: A Case Study in the Longquanyi District of Chengdu City, Sichuan Province, China

2019 ◽  
Vol 11 (9) ◽  
pp. 2678
Author(s):  
Dinghua Ou ◽  
Xingzhu Yao ◽  
Jianguo Xia ◽  
Xuesong Gao ◽  
Changquan Wang ◽  
...  
Keyword(s):  
Landscape Pattern ◽  
Land Use Planning ◽  
Spatial Layout ◽  
Layout Optimization ◽  
Sichuan Province ◽  
Landscape Patterns ◽  
Ecological Security ◽  
Quantitative Structure ◽  
Landscape Suitability ◽  
Optimization Allocation

The simulation of landscape pattern optimization allocation (LPOA) to achieve ecological security is an important issue when constructing regional ecological security patterns. In this study, an LPOA model was developed by integrating a binary logistic regression model and a nonlinear programming model with a particle swarm optimization algorithm in order to consider the complexity of landscape pattern optimization in terms of the quantitative structure and spatial layout optimization, integrating the landscape suitability and factors that influence landscape patterns, and under constraints to maximize the economic, ecological, and comprehensive benefits of landscape patterns. The model was employed to simulate the LPOA in the Longquanyi District of Chengdu City, Sichuan Province, China. The model successfully obtained an appropriate combination of the landscape quantitative structure and spatial layout, as well as effectively integrating the landscape suitability and factors that influence the landscape pattern. Thus, the model addressed the problems of previous studies, such as neglecting the coupling between quantitative structure optimization and spatial layout optimization, ignoring the macrofactors that affect landscape patterns during optimization modeling, and initializing particles without considering the suitability of the landscape. Furthermore, we assessed and analyzed the accuracy and feasibility of the landscape pattern spatial layout optimization results, where the results showed that the overall accuracy of the optimization results was 84.98% with a Kappa coefficient of 0.7587, thereby indicating the good performance of the model. Moreover, the simulated optimization allocation scheme for the landscape pattern was consistent with the actual situation. Therefore, this model can provide support and a scientific basis for regional landscape pattern planning, land use planning, urban planning, and other related spatial planning processes.

Keys and Tactics of Existing Barracks Spatial Layout Optimization

2014 ◽  
Vol 1065-1069 ◽  
pp. 1622-1625
Author(s):  
Lei Yan ◽  
Wei Ran Zhou
Keyword(s):  
Control Method ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Spatial Layout ◽  
Layout Optimization ◽  
The Sustainable Development ◽  
Space Construction ◽  
Function Integration ◽  
Land Reuse ◽  
Three Dimensional Space

Spatial layout optimization is a core of existing barracks renewal. Distinguishing from new built barracks, existing barrack spatial layout optimization needs to pay more attention to solve the contradiction between current and future. So in this chapter, we develop six primary design keys applied to existing barracks including harmony relations between barrack and its surrounding environment, emphasis on weakness construction, optimize allocation, improve security defense capabilities, enhance artistry of spatial layout and realize the whole structure optimization. Reference to ancient classical fortification thoughts and current construction conditions, we also explore 5 tactics to optimize existing barracks spatial layout , namely, function integration method, node co-ordinate method, axis control method, three-dimensional space construction method, as well as idle land reuse method. Finally, we choose one tipical case to integrated apply the above keys and tactics from theoretical and practical fields promoting the sustainable development of existing barrack .

scholarly journals Design of Augmented Cooling System for Urban Solar PV System

2021 ◽  
Vol 335 ◽  
pp. 03002
Author(s):  
Chong Jia Joon ◽  
Kelvin Chew Wai Jin
Keyword(s):  
Cooling System ◽  
Electrical Energy ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Pv System ◽  
Pv Panel ◽  
Solar Pv System ◽  
Low Efficiency ◽  
Electrical Loads ◽  
Temperature Output

Solar photovoltaic (PV) panels have been widely used to convert the renewable energy from the sun to electrical energy to power electrical loads but suffers from relatively low efficiency between 15% to 22%. Typically, the panels have an average lifespan of 25 to 30 years but could degrade quicker due to the panel overheating. Beyond the optimum working temperature of 25°C, a drop of efficiency by 0.4 to 0.5% for every 1°C had been reported. For solar PV applications in urban regions, passive cooling is beneficial due to limited amount of space and lower energy consumption compared to active cooling. A solar PV system with augmented cooling was conducted at a balcony of a condominium from 10am until 2pm. The solar PV system consisted of an Arduino controller, solar panel module, temperature sensor and LCD monitor. Reusable cold and hot gel packs were attached to the bottom of the solar PV. Both setups of solar PV panel with and without the cooling system were placed at the balcony simultaneously for measurement of temperature, output voltage and current. From this research, the outcome of implementing a cooling system to the solar PV increases the efficiency of the energy conversion.

scholarly journals Mathematical Modelling of a System for Solar PV Efficiency Improvement Using Compressed Air for Panel Cleaning and Cooling

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4072
Author(s):  
Marcus King ◽  
Dacheng Li ◽  
Mark Dooner ◽  
Saikat Ghosh ◽  
Jatindra Nath Roy ◽  
...  
Keyword(s):  
Compressed Air ◽  
Solar Photovoltaic ◽  
Efficiency Improvement ◽  
Solar Pv ◽  
Full System ◽  
Pv Panel ◽  
Pv Generation ◽  
Air Compression ◽  
And Storage ◽  
Pv Power Generation

The efficiency of solar photovoltaic (PV) panels is greatly reduced by panel soiling and high temperatures. A mechanism for eliminating both of these sources of inefficiencies is presented by integrating solar PV generation with a compressed air system. High-pressure air can be stored and used to blow over the surface of PV panels, removing present dust and cooling the panels, increasing output power. A full-system mathematical model of the proposed system is presented, comprised of compressed air generation and storage, panel temperature, panel cleaning, and PV power generation. Simulation results indicate the benefit of employing compressed air for cleaning and cooling solar PV panels. For a fixed volume of compressed air, it is advantageous to blow air over the panels early in the day if the panel is soiled or when solar radiation is most abundant with the highest achievable flow rate if the panel is clean. These strategies have been shown to achieve the greatest energy captures for a single PV panel. When comparing the energy for air compression to the energy gain from cleaning a single PV over a two-week period, an energy ROI of 23.8 is determined. The system has the potential to eliminate the requirement for additional manual cleaning of solar PV panels.

scholarly journals Spectral Filtering of Photovoltaic Cells using Novel Bio-Filter: Silver Coated Hibiscus Extract using Butanol Solution

2019 ◽  
Vol 9 (2) ◽  
pp. 724-727 ◽  
Keyword(s):  
External Solution ◽  
Cost Effective ◽  
Photovoltaic Cell ◽  
First Year ◽  
Solar Photovoltaic ◽  
Spectral Filtering ◽  
Ir Radiation ◽  
Pv Panel ◽  
Pv Module ◽  
Universal Usability

The adaptability of the solar photovoltaic cell is huge but not without its peculiar challenges. It has been reported that the patronage of photovoltaic (PV) in Africa is drastically dropping due to the dismal performance of PV in the first year of purchase. In this research, the bio-filter was proffered as an external solution to improving the efficiency and longevity of PV module. It was observed that the bio-filter improved the efficiency of the polycrystalline panel by 60%. This means that a good percentage of the solar IR radiation can be reflected from this proposed bio-filter. This research further affirms the significance of plants as a veritable tool to protect the PV panel. Hence, this bio-filter is adjudged to be cost-effective (i.e. affordable), universal usability and eco-friendly in both the long and short term.

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