Estimating the Performance of Different Photovoltaic Module Under the Niger Delta Climatic Conditions

2020 ◽  
Vol 7 (5) ◽  
pp. 29-32
Author(s):  
Roland Uhunmwangho ◽  
Obi Somto ◽  
Ameze Big-Alabo
Keyword(s):  
Niger Delta ◽  
Climatic Conditions ◽  
Photovoltaic Module

scholarly journals Geochemical characterization of FE-1 well, Onshore Western Niger Delta Basin, Nigeria

2020 ◽  
Vol 24 (2) ◽  
pp. 381-391
Author(s):  
F.O. Amiewalan ◽  
F.A. Lucas
Keyword(s):  
Niger Delta ◽  
Tectonic Setting ◽  
Uranium Content ◽  
Climatic Conditions ◽  
Passive Margin ◽  
Elemental Ratios ◽  
Average Value ◽  
Major Oxides ◽  
Trace Elemental ◽  
Niger Delta Basin

Major oxides and trace elements analysis was carried out on ditch cutting samples of FE-1 well, Onshore, Niger Delta Basin, to define their oxygen condition, paleo-climatic conditions, provenance, tectonic setting, sandstone classification and maturity of the sediments. Sedimentological analysis revealed five main lithofacies comprising of sandstone, shaly sand, mudstone, sandy clay and sandy shale. Geochemical results indicates that the average value of silica (87.1 wt. %) is far higher than the average values of the rest oxides which shows the duration and intensity of weathering and destruction of other minerals during transportation. Bivariate plot of La/Sc versus Th/Co, Zr versus TiO2, and trace elemental ratios of Th/Sc, Th/Co, Th/Cr, Cr/Th, La/Sc establishes that the source of the sediment are from felsic rock. Different chemical classification schemes characterized the sediments as quartzarenite, lithic arenites and Fe-rich sand. The plot of Log (K2O/Na2O) versus Log (SiO2/Al2O3) and K2O/Na2O versus SiO2 all plotted mainly in the passive margin zone. The low average value of uranium content, trace elemental ratios of U/Th, Ni/Co, Cu/Zn, V/Cr and binary plot of Ni/Co versus V/Cr indicated an oxic environment of deposition. However, the binary plot of Ni/Co versus V/ (V+Ni) indicates oxic to anoxic condition during deposition of the mixed marine and terrigenous source input sediment. Binary plot of SiO2 versus (Al2O3+Na2O+K2O) designates deposition mainly in humid/semi-humid climatic condition. The samples studied have a much higher SiO2/Al2O3 ratio with low Fe2O3/K2O ratio, thus, they are mineralogically mature. The Al2O3/(CaO+MgO+Na2O+K2O) ratio inferred that there are stable mobile oxides in the samples. Keywords: Major oxides, lithic arenites, provenance, tectonic setting.  

scholarly journals Design of a low-cost measuring and plotting device for photovoltaic modules

2019 ◽  
Vol 52 (9-10) ◽  
pp. 1308-1318
Author(s):  
Sudipta Basu Pal ◽  
Abhijit Das ◽  
Konika Das (Bhattacharya) ◽  
Dipankar Mukherjee
Keyword(s):  
Heat Dissipation ◽  
Low Cost ◽  
Climatic Conditions ◽  
Performance Ratio ◽  
Photovoltaic Module ◽  
Eastern Region ◽  
Testing Apparatus ◽  
Photovoltaic Modules ◽  
Test Kit ◽  
Capacitive Loading

The photovoltaic module testing apparatus being used presently for photovoltaic measurements acts principally on the method of photovoltaic module loading with resistive, capacitive, and electronic elements. In this work, a new method is described using a supercapacitor as the load to the photovoltaic module. This technique of characterization has proved to generate reliable V–I characteristics as validated by statistical and mathematical analyses in this article. Heat dissipation affecting the functioning of the photovoltaic modules is a common occurrence with resistive and capacitive loading techniques. It is reduced significantly in this method using supercapacitors, and curve tracing time is extremely modest and easily controllable. In effect, a low-cost, portable, and reliable I–V plotter is developed, which is operational from an embedded systems platform integrated with smart sensors. This I–V tracer has been used for the performance assessment of solar modules ranging from 10 to 100 Wp under varying climatic conditions in the eastern region of India. This test kit so developed in the photovoltaic engineering laboratory at Indian Institute of Engineering Science and Technology, Shibpur, is estimated to be useful for practicing engineers and photovoltaic scientists and in particular for photovoltaic module manufacturers. The performance parameters such as fill factor and performance ratio of photovoltaic modules measured by the device have been found to have almost identical values as the measurements from a reference commercial testing apparatus. The data pertaining to peak wattage as measured by the designed plotter have been found to be closely converging with an industry-friendly YOKOGAWA Power Meter (WT 330). Such peak values of power as measured and claimed by the datasheets will help reduce the uncertainties in measurement, leading to increased confidence of photovoltaic module manufacturers and investors. With this backdrop, the necessary work for scaling up of the low-cost I–V plotter has been taken up for assessing the performance of higher wattage photovoltaic modules.

scholarly journals Effects of Climatic Conditions on a Polycrystalline Photovoltaic Module in Niger

2015 ◽  
Vol 55 ◽  
pp. 59-65 ◽  
Author(s):  
Fatou Ndiaye ◽  
Moustapha Sene ◽  
Modou Beye ◽  
Amadou S.H. Maiga
Keyword(s):  
Wind Speed ◽  
Output Power ◽  
Solar Irradiance ◽  
Climatic Conditions ◽  
Photovoltaic Module ◽  
Power Characteristic ◽  
Output Current ◽  
Current Characteristic ◽  
Basic Equations ◽  
Panel Effects

The main purpose of this paper is to evaluate the efficiency of a photovoltaic module operating in a sahelian country like Niger. A brief introduction to the behavior and the functioning of a photovoltaic module has been presented and the basic equations needed for a modeling based on ambient parameters have been also written. For the validation, characteristics of experimental purpose are presented with a satisfactory reliability degree. The effects of external parameters, mainly temperature, solar irradiance and wind speed have been considered on the output current characteristic and the output power characteristic. Due to their critical effects on the operation of the panel, effects of series resistances were also studied.

scholarly journals Palaeoclimatology and biostratigraphic significance of late Neogene/Quaternary vegetational changes recorded in the offshore western Niger Delta

2019 ◽  
Vol 59 (2) ◽  
pp. 373-390 ◽  
Author(s):  
Peter Adegbenga Adeonipekun ◽  
Margaret Adebisi Sowunmi
Keyword(s):  
Niger Delta ◽  
Age Determination ◽  
Climatic Conditions ◽  
Early Pliocene ◽  
Freshwater Swamp ◽  
Late Neogene ◽  
Dry Conditions ◽  
Main Basis ◽  
Lower Magnitude ◽  
Changes Over Time

Abstract Attempts at reconstructing palaeoclimatic changes over time using palynomorphs of three oil wells drilled in the shallow offshore Niger Delta led to cluster analysis-aided recognition of seven pollen zones. These pollen zones are equivalent to ten palaeoclimatic zones with alternating dry and wet conditions. The palynomorphs were classified into phytoecological groups and changes in their relative abundances were employed to interpret the palaeoclimatic conditions of their source areas. Contrasting fluctuations in the proportions of the Spore (Pteridophytes) phytoecological group and those of the Poaceae were the main basis for palaeoclimatic inferences. Trends of the occurrence of other phytoecological groups were used to substantiate our palaeoclimatic inferences. In the latest Miocene (5.8–5.5 Ma), climatic conditions were mainly wet until between 5.5 and 5.0 Ma, when extreme dry conditions prevailed. The early Pliocene part (5.0–>3.4 Ma) was generally wet, while the late Pliocene part (<3.0–2.7 Ma) was extremely dry, with wet conditions re-occurring at the latest Pliocene/earliest Pleistocene boundary at a lower magnitude than those of the early Pliocene. This is inferred from the bloom of open vegetation Acanthaceae undif., Polygala sp. and Asystacia gangetica, along with montane Podocarpus milanjianus from 2.4 Ma through 2.0 Ma and younger. The Acanthaceae bloom recorded the evolution of A. gangetica in the latest Pliocene/earliest Pleistocene at around 2.0 Ma in the Niger Delta. The upper Early Pliocene regional wet event is associated with distinct peaks of riverine forest, freshwater swamp and mangrove pollen. Our results further support earlier findings from other parts of West Africa with respect to palaeoclimatic changes in the late Neogene/earliest Quaternary. Equivalent qualitative palynostratigraphic events were recognized within the pollen zones which are useful for age determination, and the significance of biostratigraphic correlation of the zones is stressed.

Performance analyzes of different photovoltaic module technologies under İzmit, Kocaeli climatic conditions

2015 ◽  
Vol 52 ◽  
pp. 357-365 ◽  
Author(s):  
Mustafa E. Başoğlu ◽  
Abdulvehhap Kazdaloğlu ◽  
Tarık Erfidan ◽  
Mehmet Z. Bilgin ◽  
Bekir Çakır
Keyword(s):  
Climatic Conditions ◽  
Photovoltaic Module

scholarly journals Validation of Thermal Models for Polycrystalline Photovoltaic Module Under Derna City Climate Conditions

2021 ◽  
Vol 7 (2) ◽  
Author(s):  
Mahmood Abdel hadi ◽  
Yasser Aldali ◽  
Ali N Celik
Keyword(s):  
Ambient Temperature ◽  
Linear Models ◽  
Theoretical Models ◽  
Climatic Conditions ◽  
Solar Irradiation ◽  
Photovoltaic Module ◽  
Cell Temperature ◽  
Climate Conditions ◽  
Quantitative Indicators ◽  
Temperature Correlations

The main objective of the present paper is to compare nine different cell temperature models available in the literature with data measured under real Derna city climatic conditions (a semi arid climate) for month of August. The study focuses on a comparison of nine theoretical models to calculate the cell temperature based on the experimental measurements such as the ambient temperature, irradiance, and wind speed in some of the models. The presently used models are explicit, depending on the easily measurable parameters and of wide applicability. Six statistical quantitative indicators are used to evaluate the cell temperature models analysed, namely, R2, RMSE, RRMSE, MAE, MBE and MARE. The cell temperature correlations presently studied, first order linear models depending on the ambient temperature, solar irradiation incident on the panel and voltage output, provide the most accurate cell temperature estimations at Derna city climatic conditions.

scholarly journals Konverter berbasis SEPIC pada modul photovoltaik yang terintegrasi dengan inverter 1 fasa

JURNAL ELTEK ◽  
2021 ◽  
Vol 19 (2) ◽  
pp. 64
Author(s):  
DONNY RADIANTO ◽  
HERWANDI HERWANDI ◽  
YULIANTO YULIANTO
Keyword(s):  
Output Voltage ◽  
Pulse Width Modulation ◽  
Input Voltage ◽  
Climatic Conditions ◽  
Photovoltaic Module ◽  
Generation System ◽  
Pv Module ◽  
Satisfactory Performance ◽  
Single Sensor ◽  
Power Generation System

Sistem pembangkit listrik saat ini telah menarik banyak perhatian baik dari kalangan akademik maupun industri. Hal ini disebabkan karena keuntungan yang ditawarkan, antara lain bersih, dapat merubah menjadi listrik secara langsung, dan tidak menyebabkan polusi. Namun, karena masih adanya ketergantungan terhadap kondisi iklim, demikian seperti irradiant maupun suhu, maka daya dari modul photovoltaik ini perlu dimaksimalkan. Terkait dengan hal ini, paper ini menghadirkan suatu metode untuk melacak daya maksimum dari modul photovoltaik berbasis pada metode perturbation observer yang dimodifikasi. Metode pelacakan ini dibuat untuk menghasilkan modulasi lebar pulsa dengan frekuensi 62.5 KHz yang berfungsi untuk mengatur konverter berbasis SEPIC dengan menerima tegangan masukan dari modul PV serta menghasilkan tegangan keluaran yang dapat digunakan untuk mengisi baterai (accu) yang dapat diintegrasikan untuk menghasilkan tegangan AC melalui inverter. Penggunaan SEPIC sebagai pengkondisi sinyal ini karena memiliki keuntungan dimana tegangan keluaran yang dihasilkan tidak dibalik, seperti pada rangkaian konverter buck – boost. Selanjutnya, pemanfaatan metode perturbation observer yang telah dimodifikasi dan diintegrasikan dengan konverter SEPIC menunjukkan kinerja yang memuaskan. Selain itu, sistem yang diajukan hanya memanfaatkan sensor tunggal sebagai masukan dari kontroller. The current power generation system has attracted a lot of attention from both academia and industry. This is due to the advantages offered, including being clean, being able to convert into electricity directly, and not causing pollution. However, because there is still dependence on climatic conditions, such as irradiant and temperature, the power from this photovoltaic module needs to be maximized. Related to this, this paper presents a method to track the maximum power of a photovoltaic module based on a modified perturbation observer method. This tracking method is made to produce pulse width modulation with a frequency of 62.5 KHz which functions to regulate the SEPIC-based converter by receiving input voltage from the PV module and producing an output voltage that can be used to charge the battery (accu) which can be integrated to produce AC voltage through the inverter. The use of SEPIC as a signal conditioner has the advantage that the resulting output voltage is not reversed, as in the buck-boost converter circuit. Furthermore, the use of the modified perturbation observer method integrated with the SEPIC converter showed satisfactory performance. In addition, the proposed system only utilizes a single sensor as input from the controller

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