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.

Application of nano-PCMs in solar Photovoltaic

2020 ◽  
pp. 47-58
Author(s):  
Shubham Srivastava ◽  
Deepak ◽  
CS Malvi
Keyword(s):  
Transfer Rate ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Storage Medium ◽  
Pv System ◽  
Cooling Systems ◽  
Pv Panel ◽  
Solar Pv System

Although the good intensity of solar radiation is desirable for a solar PV system, but the power output drops with a rise in its temperature. The open-circuit voltage of PV panel decreases with increase in its temperature, thus lowering the PV effect. Many studies have been carried out by the researcher to tackle this problem, proposing modification in conventional PV system design and utilizing water, air, PCM, and oil as a cooling medium in various cooling systems. Although PCM has fascinating characteristics as a thermal energy storage medium in the solar system, but low thermal conductivity became a barrier in energy conversion. Few studies suggested the use of nanoparticles in PCM to increase its heat transfer rate but very few studies were focused on nano PCM incorporated solar PV system. This paper summarized the researches done so far on nano PCM solar PV system by delineating the methods, and materials involved.

scholarly journals Factors Influencing Solar Photovoltaic Utilization for Energy Services among Residentials in Akure, Nigeria

2020 ◽  
pp. 14-28
Author(s):  
Olalekan Aquila Jesuleye ◽  
Arigbede, Olutosin Foluso ◽  
Adepoju, Adeyemi Oluwaseun
Keyword(s):  
Analysis Data ◽  
Government Support ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Energy Services ◽  
Power Failure ◽  
Energy Technologies ◽  
Factors Influencing ◽  
Energy Service ◽  
Ondo State

Aims: Residential sector is the largest electricity consumer in Nigeria. But they also contribute heavily to the climate change through their choice of energy. Mostly prefer source is the fossil fuel for electricity generation despite the growing awareness of the need to reduce greenhouse gas emissions by embracing renewable energy technologies across the globe. Hence, this study investigated the factors influencing solar PV utilization in Akure. Study Design: The study employed a survey research design. Place and Duration of Study: Three residential estates in Akure, Ondo State, Nigeria formed the study areas. The study was conducted between June 2019 and July 2019. Methodology: The study surveyed 292 households located in the three residential estates in Akure, Ondo State and 219 retrieved questionnaire were found usable for the analysis. Data was analysed using the mean ranking of the influencing factors. Results: The results revealed that the highest ranking factor influencing utilization of Solar PV for energy services is that Solar PV is a good backup against power failure. This is as a result of the erratic power supply in Nigeria which has not only failed to meet the need of household but also hampered economic growth. However, the least ranking factor influencing solar PV utilization for energy services is Ability to sell electricity to the national grid. Conclusion: Cooperation between private enterprises and relevant government agencies supported by ‘political will’ is required to promote the aforementioned factors influencing the solar PV utilization for energy services in Nigeria. Utilization of solar PV as an energy source for energy service ensure access to affordable, reliable, sustainable and modern energy for all. The research recommended that government support for solar PV intervention should be further encouraged.

Investigations of Different Liquid Based Spectrum Beam Splitters for Combined Solar Photovoltaic Thermal Systems

2016 ◽  
Vol 138 (2) ◽  
Author(s):  
S. S. Joshi ◽  
A. S. Dhoble ◽  
P. R. Jiwanapurkar
Keyword(s):  
Solar Spectrum ◽  
Coconut Oil ◽  
Transformer Oil ◽  
Electrical Performance ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Solar Simulator ◽  
Thermal Systems ◽  
Beam Splitters ◽  
Beam Split

In the spectrum beam split approach of combined solar photovoltaic thermal system (PVT), the complete solar spectrum is splitted. The unwanted part of the solar spectrum for photovoltaic (PV) applications is filtered out and is used separately as heat. In this work, some inexpensive, clear, and easily available selective fluids are identified which can be used as both volumetric heat absorbers and selective spectrum filters for C-Si-based PVT. The electrical performance of a C-Si solar PV cell using these fluid-based filters is analyzed using a solar simulator at 1 Sun, AM 1.5 G. To check the volumetric heat absorbing potential, the required thermophysical properties of these selected fluids are estimated using a solar radiation pyranometer and standard experiments. The study concludes that water, coconut oil, and hydrotreated silicone transformer oil are some of the potential beam splitters and heat absorbers suitable for C-Si based spectrum beam split PVT applications.

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 Thermal Performance of Phase Change Material Based Heat Sink for Solar Photovoltaic Cooling

2019 ◽  
Vol 8 (9) ◽  
pp. 3320-3323 ◽  
Keyword(s):  
Phase Change ◽  
Phase Change Material ◽  
Thermal Performance ◽  
Heat Sink ◽  
Paraffin Wax ◽  
Transient Temperature ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Pv Panel ◽  
Change Material

Solar photovoltaic panels can receive only eighty percent of total incident solar radiation. A small amount of incident energy is transformed into electrical energy based on the efficiency of the photovoltaic (PV) cell. The remaining energy leads to an increase in photovoltaic cell operating temperature which affects its life and power output. Cooling of PV panel is the best way to improve the efficiency either by passive or active cooling methods. PV cooling by Phase change materials (PCM) is the best effective technique. Paraffin wax is a non toxic material having high latent heat of fusion used for many thermal applications. In this study, paraffin wax is taken as phase change material in aluminum heat sink with fins. Using DSC, the melting point of paraffin wax is analysed. The flat plate heater is used instead of solar PV panel. Different wattages are used for the experiments. Different inclinations such as horizontal (00 ), vertical (900 ) and intermediate (450 ) were taken in to consideration. The melting starts at 50oC and complete melting occurs at a temperature around 60oC for the paraffin based heat sink. The heat sink surface temperatures, fin temperatures and PCM temperatures are measured. The transient temperature distribution of heat sink, PCM is analysed at different wattage inputs. The total thermal performance of this paraffin PCM based heat sink was analysed experimentally. This infers that the cooling of high temperature of PV panels can be done by using paraffin based PCM to increase the efficiency and life of the panels.

Analysis of Web-Based Solar Photovoltaic Mapping Tools

2009 ◽  
Author(s):  
Jesse Dean ◽  
Alicen Kandt ◽  
Kari Burman ◽  
Lars Lisell ◽  
Christopher Helm
Keyword(s):  
Technological Development ◽  
Clean Energy ◽  
System Size ◽  
Electricity Production ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Pv System ◽  
Energy Technologies ◽  
Mapping Tool ◽  
Development Costs

As the demand for renewable energy has grown, so too has the need to quantify the potential for these resources. Understanding the potential for a particular energy source can help inform policy decisions, educate consumers, drive technological development, increase manufacturing capacity, and improve marketing methods. In response to the desire to better understand the potential of clean energy technologies, several approaches have been developed to help inform decisions. One technology-specific example is the use of solar photovoltaic (PV) maps. A solar PV mapping tool visually represents a specific site and calculates PV system size and projected electricity production. This paper identifies the commercially available solar mapping tools and provides a thorough summary of the source data type and resolution, the visualization software program being used, user inputs, calculation methodology and algorithms, map outputs, and development costs for each map.

A Review of Mathematical Models for Performance Analysis of Hybrid Solar Photovoltaic - Thermal (PV/T) Air Heating Systems

2013 ◽  
Vol 768 ◽  
pp. 29-39 ◽  
Author(s):  
P. Baskar ◽  
G. Edison
Keyword(s):  
Industrial Process ◽  
Electrical Energy ◽  
Solar Thermal ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Thermal Systems ◽  
Heating Systems ◽  
Photovoltaic Modules ◽  
Air Heating ◽  
Process Heating

In recent years, many researches are being carried out on the integration of solar thermal systems with solar photovoltaic modules in many countries for heat generation along with electricity generation. The electrical energy generated by the solar PV modules is utilized for the operation of fan. The hybrid solar photovoltaic - Thermal (PV/T) technology provides an opportunity to enhance the electrical and thermal performances. This paper deals with analysis of various parameters which affect the electrical and thermal performances of different types of hybrid solar photovoltaic - Thermal (PV/T) air heating systems. These systems deliver more useful energy per unit area of the heater than that of individual solar PV and solar thermal systems and can be used for preheating the air for many applications such as drying of agricultural products, space heating and industrial process heating. The performance comparisons among the various models reveal that the model III in which the air flows above and below the absorber plate is most suitable for converting the solar energy into high quality electrical energy and low quality heat energy.

scholarly journals Cooling Effect on the Floating Solar PV: Performance and Economic Analysis on the Case of West Java Province in Indonesia

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2126 ◽  
Author(s):  
Adimas Pradityo Sukarso ◽  
Kyung Nam Kim
Keyword(s):  
Remote Sensing ◽  
Energy Yield ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Pv System ◽  
Levelized Cost Of Electricity ◽  
Energy Technologies ◽  
Base Scenario ◽  
Solar Pv System ◽  
Economics Analysis

Solar photovoltaic technology is one of the most well established new and renewable energy technologies. Many researchers have undertaken wide research and development in this sector, including material and system design. To protect the exhaustion of global terrestrial land and to avoid the occupation of extensive farmlands, solar photovoltaic (PV) developers, as well as policymakers, have pursued various solutions, including the development of floating solar PV (FPV). This study consists of a technological and economic perspective to analyze the floating solar PV system. The authors utilize remote sensing results to predict FPV efficiency and measure energy yield from the system while also developing an economics analysis on an FPV project by comparison with ground-based solar PV (GPV). The results from the remote sensing method found that the lake has a cooler temperature than the ground, with an annual difference of around 8 °C. FPV efficiency was also shown to be around 0.61% higher than GPV in terms of the prediction. FPV economic parameter comparison also resulted in 3.37 cents/kWh lower levelized cost of electricity (LCOE), and 6.08% higher internal rate of return (IRR) compared to GPV in the base scenario.

scholarly journals Using Life Cycle Assessment to Determine the Environmental Impacts Caused by Solar Photovoltaic Systems

2019 ◽  
Vol 122 ◽  
pp. 02005
Author(s):  
Anushka Pal ◽  
Jeff Kilby
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Manufacturing Process ◽  
Crystalline Silicon ◽  
Solar Photovoltaic ◽  
Solar Pv ◽  
Pv Systems ◽  
Silicon Ingot ◽  
Pv Panel

The paper presents research that investigated the Life Cycle Assessment of multi-crystalline photovoltaic (PV) panels, by considering environmental impacts of the entire life cycle for any solar PVsystems. The overall manufacturing process of a solar PV panel ranging from silica extraction, crystalline silicon ingot growth, wavering to module fabrication and packing of the solar PV panel. The results from this research showed that the module assembly and cell processing of the manufacturing process contributed towards the main environmental impacts of the life cycle of solar PV systems.

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