scholarly journals Synthetic Series of Electricity Generation through a Photovoltaic System by using Different Panel Temperature Models

2021 ◽  
Vol 19 ◽  
pp. 39-44
Author(s):  
A. H. M. Stah ◽  
◽  
D.P. Neto ◽  
M.A. Vidal ◽  
O. C. N. Souto ◽  
...  
Keyword(s):  
Wind Speed ◽  
Electricity Generation ◽  
Electric Energy ◽  
Electrical Energy ◽  
Photovoltaic System ◽  
Several Variables ◽  
Random Behavior ◽  
Function Of Several Variables ◽  
Electric Generation ◽  
Measurement Period

The electric energy produced by photovoltaic systems is a function of several variables that present random behavior, such as solar irradiance, ambient temperature, wind speed, and relative humidity. Several models describe the energy produced by these systems, which reflect the various factors that influence the generation and how significant these influences are. In this way, the present work aims to compare some panel temperature models and the electrical energy produced from a photovoltaic system located in the Midwest of Brazil. The applied methodology aims to evaluate the expected averages and standard deviations of the monthly synthetic series of generated energy to identify the main random variables that influence the electric generation. The results indicate the model that best describes the physical system concerning the randomness of the variables involved, the photovoltaic technology, the location, and the measurement period.

scholarly journals Estimation of photovoltaic power generation potential in Serbia based on irradiance, air temperature, and wind speed data

2018 ◽  
Vol 22 (6 Part A) ◽  
pp. 2297-2307
Author(s):  
Dejan Doljak ◽  
Gorica Stanojevic ◽  
Milan Radovanovic ◽  
Slavica Malinovic-Milicevic
Keyword(s):  
Wind Speed ◽  
Air Temperature ◽  
Electricity Generation ◽  
Crystalline Silicon ◽  
Kriging Model ◽  
Photovoltaic System ◽  
Geographical Information ◽  
Data Series ◽  
Crystalline Silicon Solar Cells ◽  
New Findings

This study is devoted to the research of spatial-temporal variation of electricity generation from the kilowatt-peak photovoltaic system made of crystalline silicon solar cells. The research was conducted in the territory of Serbia using the model for estimation photovoltaic performances as a function of incident irradiance and module temperature. Preparation of input data and calculation of the final results was done within the geographical information system. Some of the required raster data, like solar irradiance and wind speed, were already available, while air temperature raster was created from discrete set of observed data using the regression-kriging model. Obtained results were presented in the form of raster maps that enabled further analysis and discussion about new findings. The analysis of seasonal variations reveals that during spring and summer months photovoltaic systems are producing up to 70% of total annual electricity yield. In terms of the spatial distribution, the most promising areas for electricity generation are located in the south part of Serbia and along main river valleys. In addition, discussion part addresses the issue of data imperfection caused by the accuracy of the selected model, as well as quality and availability of data series.

The Relationship Between Electricity Generation, Electricity Consumption, and Economic Growth in Turkey 1975-2019

2021 ◽  
pp. 195-211
Author(s):  
Abdulkadir Keskin ◽  
Berat Kara
Keyword(s):  
Economic Growth ◽  
Causal Relationship ◽  
Electricity Generation ◽  
Electric Energy ◽  
Electricity Consumption ◽  
Electrical Energy ◽  
Test Method ◽  
Causality Test ◽  
The Relationship ◽  
Electrical Energy Generation

Electric energy is very important both technologically and economically in today's countries. Countries can generate and consume more energy according to their level of development and the resources they have. In the literature, it is estimated in parallel with the development of countries; there will also be an increase in electrical energy generation and consumption. Similarly, in economies that generate and consume more electricity, it is assumed that this will affect their economic growth. But these assumptions need to be calculated econometrically. This study has been prepared for this purpose. In this study, the relationship between electricity generation, electricity consumption, and economic growth in Turkey was analyzed. In the analysis conducted for the period 1975-2019, the Toda-Yamamoto causality test method was preferred as the method. As a result of the analysis, it was determined that there is a causal relationship from electricity consumption and electricity generation to economic growth, valid for the period 1975-2019 in Turkey.

scholarly journals PV Emulation by using DC Programmable Sources

2017 ◽  
Vol 8 (1) ◽  
pp. 11-17 ◽  
Author(s):  
Denis Pelin ◽  
Milan Opačak ◽  
Matej Pal
Keyword(s):  
Electricity Generation ◽  
Electrical Energy ◽  
Daily Basis ◽  
Photovoltaic System ◽  
Photovoltaic Systems ◽  
Pv Modules

The paper describes fast emulation of one selected photovoltaic system. This type of emulation reduces emulation time multiple times regarding standard emulation. By speeding up emulation time it is possible to predict electricity generation in advance on a daily basis. This facilitates the evaluation and comparison of electricity generation of photovoltaic systems of different power and/or different photovoltaic (PV) modules. The emulated electrical energy of the selected photovoltaic systems will make it possible to put forward recommendations concerning the choice of the optimal photovoltaic system with regard to the climate elements of the region

KAJIAN POTENSI ENERGI ANGIN KABUPATEN KAIMANA PROVINSI PAPUA BARAT

2008 ◽  
Vol 6 (2) ◽  
Author(s):  
Elias K. Bawan
Keyword(s):  
Energy Source ◽  
Wind Speed ◽  
Power Plant ◽  
Wind Power ◽  
Energy Supply ◽  
Electric Energy ◽  
Electrical Energy ◽  
City Development ◽  
Human Needs ◽  
Papua Barat

<p><em>The human needs for electrics energy, especially in Kaimana regency is increasing together with city development and increasing of the resident. The electric energy supply from diesel power plant in PT. PLN (Persero) is very limited, electrical distinguishing and electrical black out are frequently happened. The potential of renewable energy like wind power is very potential to be developed as electrical energy source. </em><em>Result of the study shows that the average of wind speed is 4.68 metres/second and it can be classified in third class energy. The potential of wind power in Kaimana regency is 267.7 Watt for diameter 2m and 415.60 Watt for diameter 3m.</em></p>

scholarly journals Pengujian Karakteristik Turbin Angin Tipe Horizontal Sudu Flat Multiblade Dengan Pengaturan Sudut Sudu

2020 ◽  
Vol 3 (1) ◽  
pp. 15
Author(s):  
Syafriyudin Syafriyudin ◽  
M Suyanto ◽  
Subandi Subandi ◽  
M Nurkhakim W
Keyword(s):  
Wind Speed ◽  
Electric Energy ◽  
Electrical Energy ◽  
Power Source ◽  
Storage Battery ◽  
Optimal Angle ◽  
Electric Energy Storage ◽  
Wind Potential ◽  
Horizontal Type ◽  
Load Center

One effort to overcome the energy crisis is to utilize wind energy as a power source. Angina power Plant is a method for generating electrical energy by rotating the angina turbine connected with the generator, the electric energy produced by the generator is stored in an element of electric energy storage (battery). The next one will be channeled to load center like household. The Perarancangan of the horizontal type flat Multiblade Sudu is using a microcontroller that can change the angle of the sudu according to the wind speed so as to maximize the power of wind potential energy. For a sudu angle setting that can adjust the speed of the wind, use two servo motors that have been control by the Arduinouno from the input anemometer so that the angle of the sudu can adjust the wind speed. The results have shown that the turbine-angle arrangement of the turbines can increase the rotation of the wind turbine, thereby increasing the voltage raised in the generator. The optimal angle of the Sudu is at a 15o angle, at a wind speed of 9.5 m/s, resulting in a turbine round of 610 rpm.

scholarly journals AUDIT ENERGI PADA SEBUAH HOTEL

2012 ◽  
Vol 16 (3) ◽  
pp. 131
Author(s):  
Didik Ariwibowo
Keyword(s):  
Energy Consumption ◽  
Air Conditioning ◽  
Energy Savings ◽  
Electric Energy ◽  
Electrical Energy ◽  
Hot Water ◽  
Electrical Energy Consumption ◽  
Energy Audit ◽  
Electric Energy Consumption ◽  
Pumping System

Didik Ariwibowo, in this paper explain that energy audit activities conducted through several phases, namely: the initial audit, detailed audit, analysis of energy savings opportunities, and the proposed energy savings. Total energy consumed consists of electrical energy, fuel, and materials in this case is water. Electrical energy consumption data obtained from payment of electricity accounts for a year while consumption of fuel and water obtained from the payment of material procurement. From the calculation data, IKE hotels accounted for 420.867 kWh/m2.tahun, while the IKE standards for the hotel is 300 kWh/m2.tahun. Thus, IKE hotel included categorized wasteful in energy usage. The largest energy consumption on electric energy consumption. Largest electric energy consumption is on the air conditioning (AC-air conditioning) that is equal to 71.3%, and lighting and electrical equipment at 27.28%, and hot water supply system by 4.44%. Electrical energy consumption in AC looks very big. Ministry of Energy and Mineral Resources of the statutes, the profile of energy use by air conditioning at the hotel by 48.5%. With these considerations in the AC target for audit detail as the next phase of activity. The results of a detailed audit analysis to find an air conditioning system energy savings opportunities in pumping systems. Recommendations on these savings is the integration of automation on the pumping system and fan coil units (FCU). The principle of energy conservation in the pumping system is by installing variable speed drives (VSD) pump drive motor to adjust speed according to load on the FCU. Load variations FCU provide input on the VSD pumps to match. Adaptation is predicted pump can save electricity consumption up to 65.7%. Keywords: energy audit, IKE, AC

Evaluation of energy generation in Iraqi territory by solar photovoltaic power plants with a capacity of 20 MW

2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Qusay Hassan ◽  
Saadoon Abdul Hafedh ◽  
Ali Hasan ◽  
Marek Jaszczur
Keyword(s):  
Experimental Data ◽  
Wind Speed ◽  
Power Plant ◽  
Ambient Temperature ◽  
Solar Irradiance ◽  
Electricity Generation ◽  
Power Plants ◽  
Solar Photovoltaic ◽  
Photovoltaic Power ◽  
Plant Capacity

Abstract The study evaluates the visibility of solar photovoltaic power plant construction for electricity generation based on a 20 MW capacity. The assessment was performed for four main cities in Iraq by using hourly experimental weather data (solar irradiance, wind speed, and ambient temperature). The experimental data was measured for the period from 1st January to 31st December of the year 2019, where the simulation process was performed at a 1 h time step resolution at the same resolution as the experimental data. There are two positionings considered for solar photovoltaic modules: (i) annual optimum tilt angle and (ii) two-axis tracking system. The effect of the ambient temperature and wind on the overall system energy generated was taken into consideration. The study is targeted at evaluating the potential solar energy in Iraq and the viability of electricity generation using a 20 MW solar photovoltaic power plant. The results showed that the overall performance of the suggested power plant capacity is highly dependent on the solar irradiance intensity and the ambient temperature with wind speed. The current 20 MW solar photovoltaic power plant capacity shows the highest energy that can be generated in the mid-western region and the lowest in the northeast regions. The greatest influence of the ambient temperature on the energy genrated by power plants is observed in the southern regions.

scholarly journals Experimental investigation of domestic micro-CHP based on the gas boiler fitted with ORC module

2016 ◽  
Vol 37 (3) ◽  
pp. 79-93 ◽  
Author(s):  
Jan Wajs ◽  
Dariusz Mikielewicz ◽  
Michał Bajor ◽  
Zbigniew Kneba
Keyword(s):  
Energy Demand ◽  
Electricity Generation ◽  
Electric Energy ◽  
Organic Rankine Cycle ◽  
Rankine Cycle ◽  
Future Generation ◽  
Working Fluid ◽  
Ethanol Vapour ◽  
System User ◽  
Generation Unit

AbstractThe results of investigations conducted on the prototype of vapour driven micro-CHP unit integrated with a gas boiler are presented. The system enables cogeneration of heat and electric energy to cover the energy demand of a household. The idea of such system is to produce electricity for own demand or for selling it to the electric grid – in such situation the system user will became the prosumer. A typical commercial gas boiler, additionally equipped with an organic Rankine cycle (ORC) module based on environmentally acceptable working fluid can be regarded as future generation unit. In the paper the prototype of innovative domestic cogenerative ORC system, consisting of a conventional gas boiler and a small size axial vapour microturbines (in-house designed for ORC and the commercially available for Rankine cycle (RC)), evaporator and condenser were scrutinised. In the course of study the fluid working temperatures, rates of heat, electricity generation and efficiency of the whole system were obtained. The tested system could produce electricity in the amount of 1 kWe. Some preliminary tests were started with water as working fluid and the results for that case are also presented. The investigations showed that domestic gas boiler was able to provide the saturated/superheated ethanol vapour (in the ORC system) and steam (in the RC system) as working fluids.

FABRICATION AND TESTING OF ELECTROMAGNETIC ENERGY REGENERATIVE SUSPENSION SYSTEM

2015 ◽  
Vol 77 (21) ◽  
Author(s):  
Jazli Firdaus Jamil ◽  
Mohd Azman Abdullah ◽  
Norreffendy Tamaldin ◽  
Ahmed Esmael Mohan
Keyword(s):  
Electric Vehicles ◽  
Electric Energy ◽  
Electrical Energy ◽  
Suspension System ◽  
Electromagnetic Energy ◽  
Vehicle Suspension ◽  
Voltage Output ◽  
Vehicle Usage ◽  
Vehicle Suspension System ◽  
Wasted Energy

The world is demanding for alternative way of energy consumption for vehicle usage. The energy efficient vehicle (EEV) is one of the advancement for future land transportation that known as hybrid and electric vehicles nowadays. The vehicles use different energy other than fuel which is electric energy. This paper emphasizes the development of electromagnetic energy regenerative suspension system (EReSS) as a system that harvests energy from the vibration of vehicle suspension system. The harvested energy is converted to electrical energy for vehicle usage. A prototype of electromagnetic EReSS is fabricated and laboratory experimentation on test rig is conducted to test the voltage output. It is observed that the EReSS can harvest the wasted energy from the vibration and produce sufficient electric energy for the vehicle electrical and electronic usage. The number of windings of the coil and diameter of the coil affect the voltage output of the EReSS. The voltage output of the EReSS can be optimized by setting up the parameters. As the EReSS is proven to harvest energy, it can be used on hybrid and electric vehicle to improve the efficiency of the vehicle and reduce the fuel consumption.

Direct Torque Control Applied to DFIG Supplied via a Three-Level Inverter Under Random Behavior Wind Speed

2020 ◽  
pp. 87-96
Author(s):  
Salah Tamalouzt ◽  
Nabil Benyahia ◽  
Mariama Said Mohamed ◽  
Angel Scipioni ◽  
Bernard Davat
Keyword(s):  
Wind Speed ◽  
Direct Torque Control ◽  
Torque Control ◽  
Random Behavior
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