scholarly journals An Experimental Study on the Energy and Exergy Performance of an Air-Type PVT Collector with Perforated Baffle

Energies ◽  
2021 ◽  
Vol 14 (10) ◽  
pp. 2919
Author(s):  
Jin-Hee Kim ◽  
Ji-Suk Yu ◽  
Jun-Tae Kim
Keyword(s):  
Solar Energy ◽  
Total Energy ◽  
Second Law Of Thermodynamics ◽  
Electrical Energy ◽  
Building Envelope ◽  
Photovoltaic System ◽  
Pv Module ◽  
Energy And Exergy ◽  
Perforated Baffle ◽  
Exergy Performance

BIPV (Building Integrated Photovoltaic) system is a building envelope technology that generates energy by converting solar energy into electricity. However, after producing electrical energy, the remaining solar energy is transferred as heat, raising the temperature at the rear of the BIPV module, and reducing electrical efficiency. On the other hand, a PVT (Photovoltaic Thermal) collector is a device that generates electricity from a PV module and at the same time uses the heat transferred to the air layer inside the collector. In general, the performance of air-type PVT collectors is based on energy analysis using the first law of thermodynamics. Since this performance does not take into account the loss amount, it is not the actual amount of power generation and preheat of the collector that can be used. Therefore, an exergy analysis based on the second law of thermodynamics considering the amount of energy loss must be performed. In this paper, an air-type PVT collector to which perforated baffles were applied was tested through outdoor experiments based on ISO 9806 standard. The total energy (thermal and electrical characteristics) and exergy according to the flow rate (100, 150, and 200 m3/h), solar radiation, and rear temperature of the PV module of the air-type PVT collector were analyzed. As a result, the total exergy efficiency of the air-type PVT collector with perforated baffles was 24.8–30.5% when the total energy efficiency was 44.1–63.3%.

scholarly journals The Different Type of MPPT Techniques for Photovoltaic System

2021 ◽  
pp. 1-4
Author(s):  
Apar Chitransh ◽  
◽  
Mr. Sachin Kumar ◽  
Keyword(s):  
Solar Energy ◽  
Electrical Energy ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Main Role ◽  
Maximum Power Point ◽  
Pv Module ◽  
Full Form ◽  
Power Point

We know that sun is the only sources which is available free of cost in our environment for the PV module. when the sun strikes in to the PV cell it converts to the electrical energy. Now a days to fulfill the requirement of energy the solar energy plays a main role of that. But some time this solar energy is not sufficient to fulfill this requirement than some time we use the MPPT techniques which is increase the power generation and main advantage of this techniques is that this is work in any climate. The full form of MPPT is MAXIMUM POWER POINT TRACKER. It gets the maximum power from the available PV unit and it is not depending upon the any environmental conditions. In this paper we discuss in detail the several abilities that how they get the maximum power point and system convergence, efficiency and cost of implementation. In this paper we show that all type pf MPPT techniques.

scholarly journals The Different Type of MPPT Techniques for Photovoltaic System

2021 ◽  
Vol 1 (2) ◽  
pp. 1-4
Author(s):  
Apar chitransh ◽  
Sachin Kumar
Keyword(s):  
Solar Energy ◽  
Electrical Energy ◽  
Maximum Power ◽  
Photovoltaic System ◽  
Main Role ◽  
Maximum Power Point ◽  
Pv Module ◽  
Full Form ◽  
Power Point

we know that sun is the only sources which is available free of cost in our environment for the PV module. when the sun strikes in to the PV cell it converts to the electrical energy. Now a days to fulfill the requirement of energy the solar energy plays a main role of that. But some time this solar energy is not sufficient to fulfill this requirement than some time we use the MPPT techniques which is increase the power generation and main advantage of this techniques is that this is work in any climate. The full form of MPPT is MAXIMUM POWER POINT TRACKER. It gets the maximum power from the available PV unit and it is not depending upon the any environmental conditions. In this paper we discuss in detail the several abilities that how they get the maximum power point and system convergence, efficiency and cost of implementation. In this paper we show that all type pf MPPT techniques.

scholarly journals Investigation of monthly variations in the efficiencies of photovoltaics due to sunrise and sunset times

2020 ◽  
Vol 18 (1) ◽  
pp. 310
Author(s):  
Armstrong O. Njok ◽  
Julie C. Ogbulezie ◽  
Manoj Kumar Panjwani ◽  
Raja Masood Larik
Keyword(s):  
Relative Humidity ◽  
Solar Energy ◽  
Electrical Energy ◽  
Time Of Day ◽  
Peak Efficiency ◽  
Pv Module ◽  
Average Relative Humidity ◽  
The Difference ◽  
Monthly Variations ◽  
Different Levels

<p>The effect of time of day and month on the efficient conversion of solar energy to electrical energy using a polycrystalline (PV) module in calabar was studied. A KT-908 precision digital hygrometer and thermometer, and a M890C+ digital multimeter were used in the process. Results obtained shows that photovoltaic produce different levels of peak efficiencies at different times of the day for different months due to the difference in sunrise and sunset times for the months. The results also indicated that photovoltaics will be more efficient in months with low average relative humidity couple with low panel temperature. A peak efficiency of 77% at 12:30 in the month of April was observed before dropping to 73% at 12:00 in the month of May, indicating that there might be further drop in efficiency as we proceed further into the year. Results also show that photovoltaics are more efficient before noon in the month of May than in April while the reverse will be observed in the afternoon. </p>

scholarly journals Solar Architecture Integrated Bi-Facial Photovoltaic System as a Shade

Processes ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 1625
Author(s):  
Seung-Ho Yoo ◽  
Hee-Jeong Choi
Keyword(s):  
Total Energy ◽  
Energy System ◽  
Photovoltaic System ◽  
Physical Interaction ◽  
Cooling Load ◽  
Heating And Cooling ◽  
Pv Module ◽  
Ecological Criteria ◽  
Ecological Convergence ◽  
Transmittance Factor

Solar architecture is defined as a kind of building integrated photovoltaic (BIPV) in which the PV modules are deployed to passive solar concepts, to minimize the heating and cooling load, to upgrade the indoor environment, and to be adjustable for regional weather and to continuously succeed architectural culture. Solar architecture needs to consider the architectural culture and climate of the region through an ecological convergence. The ecological criteria lead to optimizing solar architecture through an ecological convergence of a passive intelligence and renewable energy system. The optimal angle of the bi-facial PV module as a shade is 23.5° considering the physical interaction and the traditional architecture in Korea according to the ecological criteria. The shading concept of the PV module reduces 27.5~34% of the building cooling load. Effective solar irradiance (ESR) is very important not only for PV efficiency but also for the system usage rate. This ESR should be controlled depending on the climate condition to maximize the total energy elimination factor and total energy transmittance factor for a window. The MB-BIPVS play an excellent role to maximize the total energy elimination factor and total energy transmittance factor for a window.

scholarly journals Energy/Economic Analysis and Optimization of On-Grid Photovoltaic System Using CPSO Algorithm

2021 ◽  
Vol 13 (22) ◽  
pp. 12420
Author(s):  
Reza Alayi ◽  
Mahdi Mohkam ◽  
Seyed Reza Seyednouri ◽  
Mohammad Hossein Ahmadi ◽  
Mohsen Sharifpur
Keyword(s):  
Electrical Energy ◽  
Photovoltaic Cell ◽  
High Availability ◽  
Photovoltaic System ◽  
Optimal Arrangement ◽  
Photovoltaic Panels ◽  
Solar Systems ◽  
Pv Module ◽  
Module Type ◽  
Day By Day

Today, the use of renewable energy is increasing day by day, and this development requires the optimization of these technologies in various dimensions. Solar systems have a higher acceptance due to their high availability and accessibility; the most common solar technology is photovoltaic cell. In this research, modeling was done to achieve the most economically optimal arrangement of photovoltaic panels, inverters, and module placement to generate more electrical energy by considering economic parameters, for which the CPSO algorithm was used. Four different combinations of module and inverter were studied in this research, among which the second combination, which included PV module type one and inverter type two, was the best case. One of the significant results of the present study is 191,430 kWh of electrical energy during the studied year by the solar cell connected to the grid, which requires $42,792,727 to produce.

scholarly journals Calculadora para dimensionar sistemas fotovoltaicos interconectados

2020 ◽  
pp. 31-41
Author(s):  
Oscar Flores-Ramírez ◽  
Jimmy Jimenez-Aguas ◽  
Erick Eduardo Huesca-Lazcano ◽  
Gabriel Romero-Rodríguez
Keyword(s):  
Solar Energy ◽  
Recovery Time ◽  
Electrical Power ◽  
Electrical Energy ◽  
Photovoltaic System ◽  
Basic Knowledge ◽  
Power Network ◽  
Economic Study ◽  
High Consumption ◽  
Excellent Service

The generation of electrical energy by means of photovoltaic solar energy has become the most profitable today. The most important thing for an energy engineer are the calculations, for which an automated calculator in Excel has been designed, where the calculations of a dimensioning for a photovoltaic system interconnected to the electrical power network are summarized, including billing analyzes of the rate you are in and the DAC RATE (High Consumption Domestic), RATE 01, in order to save time and money, when calculating and studying economically, it is highly important to know this type of information Since people only sell projects without any knowledge and damage the reputation of the professional area, with this automated Excel calculator anyone with basic knowledge can manipulate it without any problem, giving an excellent service saving too much time on corrections where that costs money, the system itself graphically explains the generation of the SFVI, economic study and recovery time, the client will have a broad knowledge of what you pay for.

scholarly journals Increasing efficiency with biomimetic approach in thermoregulative building envelope strategies supporting internal thermal comfort

2020 ◽  
Vol 10 (2) ◽  
pp. 75-83
Author(s):  
Banu Çiçek Avcıoğlu ◽  
Hüdayim Başak
Keyword(s):  
Solar Energy ◽  
Thermal Comfort ◽  
Renewable Energy Sources ◽  
Sustainable Use ◽  
Electrical Energy ◽  
Building Envelope ◽  
Building Envelopes ◽  
Use Of Resources ◽  
Passive Strategies ◽  
Biomimetic Approach

There has been a plea for sustainable use of resources since  the twentieth century. Buildings are known to consume forty percent of the world’s resources. Resources such as gas, oil, coal and electrical energy used in heating, cooling and ventilation of buildings are limited, as well as causing air pollution and climate change. For this reason, the energy resources used in the buildings should be used effectively, considering environmental concerns. The aim of this study is to describe the shift in efficient use of energy in buildings using a biomimetic approach in thermoregulative building envelope strategies that support internal thermal comfort. In this study, passive systems integrated into buildings which use solar energy, one of the renewable energy sources for heating, cooling and ventilation purposes have been examined. The methods followed by nature in using solar energy are discussed with the biomimetic approach and suggestions have been made to support the increase of energy efficiency by applying the obtained teachings to passive building envelopes.   Keywords: biomimetics; building envelope; kinetic building envelope; passive strategies; Thermal comfort

scholarly journals Factors of photovoltaic system cost affect in Ecuador

2019 ◽  
Vol 5 (6) ◽  
pp. 1-11
Author(s):  
Janner Leonel Santos Mantuano ◽  
Mario Javier Carreño Vera ◽  
Ever Nevárez Cedeño
Keyword(s):  
Solar Radiation ◽  
Solar Energy ◽  
Electrical Energy ◽  
Photovoltaic System ◽  
Photovoltaic Systems ◽  
Angle Of Incidence ◽  
The Sun ◽  
The Hours ◽  
The Impact

A photovoltaic system is a set of devices that take advantage of the energy produced by the sun and convert it into electrical energy. The impact produced by the possibility of using solar energy in a controlled manner for different uses and purposes has allowed the development of complete systems of transformation, storage and distribution of the energy produced with photovoltaic systems as appropriate. The production of electricity from solar radiation using solar cells and photovoltaic panels is an application that has yet fully disseminated in Third World countries, such as Ecuador. The generation of electric power will depend on the hours that the sun shines and affects the solar panel, the type and quantity of modules installed, orientation, inclination, solar radiation that reaches them, quality of the installation and the power that can be delivered to the user. Ecuador is in a privileged location in terms of solar radiation, because the equatorial line that divides the planet into two hemispheres passes through it, being almost perpendicular to the radiation it receives. In addition, this does not change during the year and there a constant angle of incidence, characteristics that give photovoltaic solar energy a great potential for use. In the investigation, an analysis of how the prices of photovoltaic systems affect the Province of Manabí, the methodology used has been the bibliographic review to know as much as possible about what replenishes the costs of photovoltaic systems.

scholarly journals Different Converter Topologies for Solar Photovoltaic System with methods for Maximum Power Point Tracking Algorithms

2019 ◽  
Vol 8 (11) ◽  
pp. 1112-1118
Keyword(s):  
Solar System ◽  
Solar Energy ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Industrial Applications ◽  
Photovoltaic System ◽  
Point Tracking ◽  
Tracking Algorithms ◽  
Converter Topologies ◽  
Solar Photovoltaic System

Renewable energy sources are becoming important for the production of electricity used in residential, commercial and industrial applications. These resources include nonconventional sources like solar, wind, hydro, biogas, tidal and biomass. All these are contributing in the production of electrical energy and also help in reducing the pollution by reducing the green gas emissions which were one of the reasons to reduce the use of conventional sources. Out of all of the above, the source which is gaining an importance and maximum usage is a solar energy. The reason behind its extensive use is it is freely available, abundant, non-pollutingin nature and its conversion without involving any rotating device. Combining the two systems increases the performance and efficiency of a particular system. Hence to improve its performance and use by two-fold, a solar system can be integrated with thermal, hydro or wind power system. Also, a suitable converter topology will be used along with an appropriate control algorithm. Solar energy changes as per irradiance and temperature in a day also one factor which reduces the power output is the partial shedding in cells. This will alleviate the conversion efficiency of solar system (About 20%). Many conventional and advanced algorithms are used for getting the optimum output from a solar system. Now days to get optimum energy from a solar system, soft computing algorithms are used in a system which are called as operating point tracking algorithms. This paper intended to emphasize on converter topologies and a brief introduction of MPPT algorithms

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