scholarly journals Analisis Energi Aktual Purata per Minggu yang Dihasilkan Solar Panel 20 WP di Kota Bekasi

MESIN ◽  
2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Jamal M Afiff ◽  
Gusti Firdaus Alamhudi

<p><em>Solar panel is gaining popularity as one of the source of alternative energy especially in tropical country. Solar panel users need to know how much energy is produced and what components it takes before starting to make a solar panel system. A comparison between ideal energy and actual energy will help to evaluate the performance of solar panel to show how much energy it will produce under a real condition. In this research, a 20 WP solar panel was used and the data collection was performed from 9 May 2018–9 July 2018 in Bekasi City. Collected data are voltage and current produced by the solar panel every ten minutes for ten hours continuous measurements. The solar panel performance was analysed by comparing maximum power, average power, and energy production per week. From the data measurements and analysis, it is found that the total energy produced is 3797 Wh, the average energy produced in one day is 61.24 Wh, and the average peak hour is 11.20 a.m.</em><em></em></p>

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5419
Author(s):  
Thitima Jintanawan ◽  
Gridsada Phanomchoeng ◽  
Surapong Suwankawin ◽  
Phatsakorn Kreepoke ◽  
Pimsalisa Chetchatree ◽  
...  

Alternative energy generated from people’s footsteps in a crowded area is sufficient to power smart electronic devices with low consumption. This paper aims to present the development of an energy harvesting floor—called Genpath—using a rotational electromagnetic (EM) technique to generate electricity from human footsteps. The dynamic models of the electro-mechanical systems were developed using MATLAB®/Simulink to predict the energy performances of Genpath and help fine-tune the design parameters. The system in Genpath comprises two main parts: the EM generator and the Power Management and Storage (PMS) circuit. For the EM generator, the conversion mechanism for linear translation to rotation was designed by using the rack-pinion and lead-screw mechanism. Based on the simulation analysis, the averaged energy of the lead-screw model is greater than that of the rack-pinion model. Thus, prototype-II of Genpath with 12-V-DC generator, lead-screw mechanism was recently built. It shows better performance when compared to the previous prototype-I of Genpath with 24-V-DC-generator, rack-pinion mechanism. Both prototypes have an allowable displacement of 15 mm. The Genpath prototype-II produces an average energy of up to 702 mJ (or average power of 520 mW) per footstep. The energy provided by Genpath prototype-II is increased by approximately 184% when compared to that of the prototype-I. The efficiency of the EM-generator system is ~26% based on the 2-W power generation from the heel strike of a human’s walk in one step. Then, the PMS circuit was developed to harvest energy into the batteries and to supply the other part to specific loads. The experiment showed that the designed PMS circuit has the overall efficiency of 74.72%. The benefit of the design system is for a lot of applications, such as a wireless sensor and Internet of Thing applications.


2016 ◽  
Vol 16 (1) ◽  
pp. 131 ◽  
Author(s):  
A. A. Ngurah Bagus Budi Nathawibawa ◽  
I Nyoman Satya Kumara ◽  
Wayan Gede Ariastina

Inverter is a very important component of a grid-connected PV plant related its function to convert photovoltaic DC to be AC power. Inverter constructed from many components to support its operation so that inverter is the most complex component in a PV plant systems. 1 MWp Grid-connected Kayubihi PV Plant uses 50 units 20 kW grid-connected inverter. This research goal is to know how inverter performance also the string array position impact to energy production. Energy production analysis at Kayubihi PV Plant by mapping the energy production percentage each inverter, then choose an inverter with the highest energy production percentage as a reference to measure the other inverters performance. The analysis considers string array location which connected to the inverter too and also based on the condition of PV location. Obtained that the highest energy production is inverter 44-E5 at 17.827 kWh and the lowest is inverter 8-D3 at 8.898 kWh. The highest average energy production is inverter 44-E5 at 72,47 kWh/day, and the lowest is inverter 11-C5 at 39,26 kWh/day. The conclusion is inverter energy production is ? 75 % based on each string array optimum energy with inverter 29-B9 has the highest ? 75 % energy production percentage. Inverter merupakan komponen yang sangat penting dalam sebuah PLTS yang terhubung dengan jaringan listrik karena fungsinya untuk mengubah daya DC modul surya menjadi daya AC. Inverter dibangun dari berbagai macam komponen untuk menunjang operasinya, sehingga inverter adalah komponen paling kompleks di dalam sistem PLTS. Grid-connected PLTS 1 MWp Kayubihi menggunakan 50 unit inverter dengan kapasitas masing-masing 20 kW. Penelitian ini bertujuan untuk mengetahui bagaimana unjuk kerja inverter serta pengaruh posisi string array  terhadap produksi energi. Analisis produksi energi di PLTS Kayubihi dilakukan dengan pemetaan persentase produksi energi dari setiap inverter, kemudian memilih inverter dengan persentase produksi energi tertinggi sebagai acuan untuk menilai unjuk kerja dari 49 inverter yang lain. Analisis juga memperhatikan letak string array yang terhubung dengan inverter serta berdasarkan kondisi lingkungan di lokasi PLTS. Diperoleh bahwa produksi energi tertinggi dihasilkan oleh inverter 44-E5 sebesar 17.827 kWh dan terendah adalah inverter 8-D3 sebesar 8.898 kWh. Inverter dengan produksi energi rata-rata  tertinggi adalah inverter 44-E5 sebesar 72,47 kWh/hari dan terendah adalah inverter 11-C5 sebesar 39,26 kWh/hari. Dapat disimpulkan bahwa produksi energi seluruh inverter di PLTS Kayubihi sudah ?75% berdasarkan energi optimum string array masing-masing, dengan inverter 29-B9 memiliki persentase produksi energi ? 75 % tertinggi. DOI: 10.24843/MITE.1601.18


2021 ◽  
Vol 13 (3) ◽  
pp. 1537
Author(s):  
Irene Zluwa ◽  
Ulrike Pitha

In the case of building surfaces, the installation of green roofs or green facades can be used to reduce the temperature of the environment and the building. In addition, introducing photovoltaic energy production will help to reduce CO2 emissions. Both approaches (building greenery and photovoltaic energy production) compete, as both of them are located on the exterior of buildings. This paper aims to give an overview of solutions for the combination of building greenery (BG) systems and photovoltaic (PV) panels. Planning principles for different applications are outlined in a guideline for planning a sustainable surface on contemporary buildings. A comprehensive literature review was done. Identified solutions of combinations were systematically analysed and discussed in comparison with additional relevant literature. The main findings of this paper were: (A) BG and PV systems with low sub-construction heights require shallow substrates/low growing plants, whereas in the case of the combination of (a semi)-intensive GR system, a distance of a minimum 60 cm between the substrate surface and lower panel edge is recommended; (B) The cooling effect of the greenery depends on the distance between the PV and the air velocity; (C) if the substrate is dry, there is no evapotranspiration and therefore no cooling effect; (D) A spectrum of different PV systems, sub-constructions, and plants for the combination of BG and PV is necessary and suitable for different applications shown within the publication.


2016 ◽  
Vol 6 (5) ◽  
pp. 1269-1277 ◽  
Author(s):  
Alberto Dolara ◽  
George Cristian Lazaroiu ◽  
Sonia Leva ◽  
Giampaolo Manzolini ◽  
Luca Votta

Author(s):  
Kau-Fui Vincent Wong ◽  
Guillermo Amador

As society continues advancing into the future, more energy is required to supply the increasing population and energy demands. Unfortunately, traditional forms of energy production through the burning of carbon-based fuels are dumping harmful pollutants into the environment, resulting in detrimental, and possibly irreversible, effects on our planet. The burning of coal and fossil fuels provides energy at the least monetary cost for countries like the US, but the price being paid through their negative impact of our atmosphere is difficult to quantify. A rapid shift to clean, alternative energy sources is critical in order to reduce the amount of greenhouse gas emissions. For alternative energy sources to replace traditional energy sources that produce greenhouse gases, they must be capable of providing energy at equal or greater rates and efficiencies, while still functioning at competitive prices. The main factors hindering the pursuit of alternative sources are their high initial costs and, for some, intermittency. The creation of electrical energy from natural sources like wind, water, and solar is very desirable since it produces no greenhouse gases and makes use of renewable sources—unlike fossil fuels. However, the planning and technology required to tap into these sources and transfer energy at the rate and consistency needed to supply our society comes at a higher price than traditional methods. These high costs are a result of the large-scale implementation of the state-of-the-art technologies behind the devices required for energy cultivation and delivery from these unorthodox sources. On the other hand, as fossil fuel sources become scarcer, the rising fuel costs drive overall costs up and make traditional methods less cost effective. The growing scarcity of fossil fuels and resulting pollutants stimulate the necessity to transition away from traditional energy production methods. Currently, the most common alternative energy technologies are solar photovoltaics (PVs), concentrated solar power (CSP), wind, hydroelectric, geothermal, tidal, wave, and nuclear. Because of government intervention in countries like the US and the absence of the need to restructure the electricity transmission system (due to the similarity in geographical requirements and consistency in power outputs for nuclear and traditional plants), nuclear energy is the most cost competitive energy technology that does not produce greenhouse gases. Through the proper use of nuclear fission electricity at high efficiencies could be produced without polluting our atmosphere. However, the initial capital required to erect nuclear plants dictates a higher cost over traditional methods. Therefore, the government is providing help with the high initial costs through loan guarantees, in order to stimulate the growth of low-emission energy production. This paper analyzes the proposal for the use of nuclear power as an intermediate step before an eventual transition to greater dependence on energy from wind, water, and solar (WWS) sources. Complete dependence on WWS cannot be achieved in the near future, within 20 years, because of the unavoidable variability of these sources and the required overhaul of the electricity transmission system. Therefore, we look to nuclear power in the time being to help provide predictable power as a means to reduce carbon emissions, while the other technologies are refined and gradually implemented in order to meet energy demand on a consistent basis.


2015 ◽  
Vol 6 (1) ◽  
pp. 11-17 ◽  
Author(s):  
G. Szabó ◽  
P. Enyedi ◽  
Gy. Szabó ◽  
I. Fazekas ◽  
T. Buday ◽  
...  

According to the challenge of the reduction of greenhouse gases, the structure of energy production should be revised and the increase of the ratio of alternative energy sources can be a possible solution. Redistribution of the energy production to the private houses is an alternative of large power stations at least in a partial manner. Especially, the utilization of solar energy represents a real possibility to exploit the natural resources in a sustainable way. In this study we attempted to survey the roofs of the buildings with an automatic method as the potential surfaces of placing solar panels. A LiDAR survey was carried out with 12 points/m2 density as the most up-to-date method of surveys and automatic data collection techniques. Our primary goal was to extract the buildings with special regard to the roofs in a 1 km2 study area, in Debrecen. The 3D point cloud generated by the LiDAR was processed with MicroStation TerraScan software, using semi-automatic algorithms. Slopes, aspects and annual solar radiation income of roof planes were determined in ArcGIS10 environment from the digital surface model. Results showed that, generally, the outcome can be regarded as a roof cadaster of the buildings with correct geometry. Calculated solar radiation values revealed those roof planes where the investment for photovoltaic solar panels can be feasible.


Author(s):  
Prof. Gaffar G. Momin, Rushikesh Barve, Manasi Shah, Nikita Sutar and Dominic Jibin James

Considering the rate of depletion of the available oil-based fuels, Renewable Energy Technologies are receiving significant attention in these years. It is, therefore, necessary to find alternatives to energy sources. This project focusses on one such alternative. A study is done on a vehicle suspension system and braking system. Suspension in vehicles produces linear vibrations due to the roughness on the roads. These vibrations are absorbed the shock absorbers and dissipated in the form of heat. In the case of a conventional braking system,a huge amount of heat is lost due to friction. This study proposes a design of a system where the heat lost in the suspension system is extracted, converted into a usable form of electrical energy and stored in batteries. This stored energy is further used in the operation of electromagnet powered brakes. Using the Regenerative Suspension System reduces the waste of energy in the shock absorbers and gives an alternative energy source and use of the Electromagnetic Braking System ensures frictionless braking. Thus, the overall consumption of energy is reduced by a notable amount.


eLife ◽  
2017 ◽  
Vol 6 ◽  
Author(s):  
Arnold Y Seo ◽  
Pick-Wei Lau ◽  
Daniel Feliciano ◽  
Prabuddha Sengupta ◽  
Mark A Le Gros ◽  
...  

Dietary restriction increases the longevity of many organisms, but the cell signaling and organellar mechanisms underlying this capability are unclear. We demonstrate that to permit long-term survival in response to sudden glucose depletion, yeast cells activate lipid-droplet (LD) consumption through micro-lipophagy (µ-lipophagy), in which fat is metabolized as an alternative energy source. AMP-activated protein kinase (AMPK) activation triggered this pathway, which required Atg14p. More gradual glucose starvation, amino acid deprivation or rapamycin did not trigger µ-lipophagy and failed to provide the needed substitute energy source for long-term survival. During acute glucose restriction, activated AMPK was stabilized from degradation and interacted with Atg14p. This prompted Atg14p redistribution from ER exit sites onto liquid-ordered vacuole membrane domains, initiating µ-lipophagy. Our findings that activated AMPK and Atg14p are required to orchestrate µ-lipophagy for energy production in starved cells is relevant for studies on aging and evolutionary survival strategies of different organisms.


SINERGI ◽  
2019 ◽  
Vol 24 (1) ◽  
pp. 73 ◽  
Author(s):  
Hamzah Eteruddin ◽  
Atmam Atmam ◽  
David Setiawan ◽  
Yanuar Z. Arief

People can make solar energy alternative energy by employing solar panels to generate electricity. The utilization of solar energy on a solar panel to generate electricity is affected by the weather and the duration of the radiation, and they will affect the solar panel’s temperature. There are various types of solar panels that can be found on the market today, including Mono-Crystalline and Poly-Crystalline. The difference in the material used needs to be observed in terms of temperature changes in the solar module. Our study’s findings showed that a change in the temperature would impact the solar panel’s output voltage, and the solar panel’s output voltage would change when it was connected to the load although the measured temperatures were almost the same.


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