ADU Repository
http://dspace.adu.ac.ae:8080
The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material.2022-12-06T10:14:58ZSimulation of a 10 kW Photovoltaic system in areas with high solar irradiation
https://dspace.adu.ac.ae/handle/1/4073
Simulation of a 10 kW Photovoltaic system in areas with high solar irradiation
Etier, Issa; Ababneh, Mohammad; A Tarabsheh, Anas
This study investigates the design and the simulation of a 10 kW photovoltaic (PV) system in areas of high solar irradiation. The importance of this study is to explore the feasibility of connecting the PV system with a grid to generate electricity at campus of Hashemite University (Jordan) whose yearly global irradiation is 2000 kWh/m2. Approach: In order to determine the size and the number of PV modules needed to achieve the energy needs of the campus, we apply both the METEONORM and the PV SOL simulation software. This study calculates the cost of one kWh generated by the PV system and then compares it with the public electricity tariff. The study also presents a comparison between the performances of different PV panel sizes with different inclination angles. Results: METEONORM software data proves to be accurate and reliable to be used in this study. The 300W-panel-size shows the maximum energy generation. The optimal inclination angle which gives the maximum power generation is 27°. Conclusion: The calculations show the cost for PV-generation is $0.18 kWh-1 without public subsidy compared to $0.086 kWh-1 from national electric power company. A total of 356 modules are calculated to meet the power needs of the campus.
2011-01-01T00:00:00ZPerformance of photovoltaic cells in photovoltaic thermal (PVT) modules
https://dspace.adu.ac.ae/handle/1/4072
Performance of photovoltaic cells in photovoltaic thermal (PVT) modules
Al Tarabsheh, Anas; Etier, Issa; Fath, Hassan; Ghazal, Abduallah; ETAL;
Integrating cooling systems with photovoltaic (PV) modules represents a very important aspect of keeping modules within acceptable operating temperatures. The objective of this study is to analyse the performance of each series-connected PV cell in photovoltaic thermal (PVT) modules. The importance of this analysis is due to the consideration of the variable operating temperature values of the PV cells, resulting in a different performance of each PV cell. The PVT modules are cooled with water serving as both a heat sink and a solar heat collector. This enhances the electrical efficiency value of the PVT modules by preventing them from elevated temperature values, while the recovered thermal energy can be utilised to increase the overall PV effectiveness. The new consideration in this study over the existing ones is the temperature distribution of each PV cell is applied for the calculation of the current voltage characteristics of the PV modules, which makes the analysis more accurate. The variance in the temperature values is a result of the temperature gradient of the fluid flowing through the pipes where the heat exchange differs in the flow direction. The potential of this study becomes more important for countries of high ambient temperatures and high solar intensity.
2016-01-01T00:00:00ZDesign and Economic Evaluation of Electrification of Small Villages in Rural Area in Yemen Using Stand-Alone PV System
https://dspace.adu.ac.ae/handle/1/4071
Design and Economic Evaluation of Electrification of Small Villages in Rural Area in Yemen Using Stand-Alone PV System
Q Al-Shetwi, Ali; Al Tarabsheh, Anas
The photovoltaic (PV) technology potential for Yemen is relatively high, based on this fact, there are many isolated and remote locations located far away from the electrical national grid and cannot be integrated in the near future. Therefore,the electrification of these rural areas using PV system is very suitable solution to solve the problem of lighting and access to the development of these areas. This paper presents a study on design and cost estimation of stand-alone photovoltaic PV system (SAPS) to supply the required electricity for these villages. The sizing of the suggested SAPS is achieved, such asradiation dataandelectrical load for the typical household in the target villages alsotaken into account during the sizing steps. Furthermore, there are a maximum power point tracking (MPPT), an inverter, charge controller and lead acid batterieswere designed. The MATLAB/Simulink was run to simulate the PV array sizing and its characteristics depending on incremental conductance MPPT technique to enhance the efficiency of the modules and get maximum available power. The simulation result has been matched the sizing calculation result. Finally, life cycle cost (LCC) analysis was usedto evaluate the economic feasibility of the system. The economical results proved that, there is a difference between the conventional energy systems and PV system in that they have a low operating cost and high initial cost. The findings of the study encouraged the use of PV systems in order to electrify the remote Yemeni areas
2016-03-01T00:00:00ZInvestigation of temperature effects in efficiency improvement of non-uniformly cooled photovoltaic cells
https://dspace.adu.ac.ae/handle/1/4070
Investigation of temperature effects in efficiency improvement of non-uniformly cooled photovoltaic cells
Al Tarabsheh, Anas; Voutetakisb, Spyrοs; Ι Papadopoulosb, Athanasios; Seferlisb, Panos; ETAL;
This study investigates the performance of photovoltaic (PV) modules with respect to temperature and proposes pipe layouts enabling efficient cooling. The operating temperatures of the PV cells are not equal since the fluid flowing through the cooling pipes has a temperature difference between the inlet and the outlet of the pipes. The warm atmosphere affects the current density/voltage J/V characteristics of the PV modules. Therefore, the PV cells under cooling tend to operate at a relatively lower temperature resulting in an enhancement in their efficiencies. This paper calculates the J/V characteristics of each PV cell depending on its operating temperature. Then the overall J/V characteristics of the PV module are recorded. The module is cooled by a fluid flowing through pipes underneath the PV module backside. The fluid serves as both heat sink and solar heat collector. In contrast to the existing models, where a PV module and its PV cells are assumed to be having the same operating temperature, our model tries to address the non-uniform distribution of the operating temperatures of the PV cells. The main idea of this paper is to consider the effect of the cooling process on the performance of each PV cell independently in order to more accurately calculate the effect of temperature on the PV parameters of the module. Different designs of cooling pipes are also introduced in this work to find the effect of pipe geometries on the performance of the PV modules. The geometry can improve the PV cell parameters and consequently the performance of the PV module. In all designs, the flow rate of the fluids must be kept the same in order emphasize the effect of geometry only. The best design is the one which keeps the operating temperature of the PV cells as minimum as possible resulting in a maximum energy yield of the PV cells.
2013-01-01T00:00:00Z