scholarly journals Feasibility of a 100% Global Renewable Energy System

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5543
Author(s):  
Patrick Moriarty ◽  
Damon Honnery
Keyword(s):  
Renewable Energy ◽  
Energy Levels ◽  
Electrical Energy ◽  
Energy System ◽  
The Novel ◽  
Novel Approach ◽  
Energy Needs ◽  
Energy Conversion And Storage ◽  
Business As Usual

Controversy exists as to whether renewable energy (RE) can provide for all the world’s energy needs. The purpose of this paper is to help resolve this vital question. Official forecasts see a resumption of a business-as-usual world after the pandemic-induced recession, with further economic growth out to at least 2050. The novel approach taken in this paper is to assume that such a world is fueled entirely with RE at global energy levels at or above those of today, and then to examine whether this scenario is feasible. Because the intermittent primary electricity sources, wind, and solar power, would have to supply nearly all this energy, a simplification made for this analysis is that they do supply 100% of all energy, including non-electrical energy needs. It is found that the energy that could be delivered by these two sources is much less than often assumed, for several reasons: The declining quality of inputs; the need for inclusion of uncounted environmental costs; the need for energy conversion and storage; and the removal of existing fossil fuel energy subsidies. It is concluded that a future world entirely fuelled by RE would necessarily be a lower-energy one.

scholarly journals A High Standard Isolated Insolated Photovoltaic Egyptian Safari Rest Red Sea Area

2008 ◽  
Author(s):  
Faten H. Fahmy
Keyword(s):  
Renewable Energy ◽  
Red Sea ◽  
Renewable Energy Sources ◽  
High Standard ◽  
Electrical Energy ◽  
Energy System ◽  
Remote Communities ◽  
Energy Needs ◽  
Egyptian Government ◽  
Sea Area

Where renewable energy sources, solar, hydro, wind are available the remote communities and businesses can be provided with the most reliable and affordable source of electrical energy. This paper presents a model of safari rest contains all the necessary services for the interested tourists who visit the safari Sinai desert. The PV energy system provides the rural energy needs of remote communities. A photovoltaic renewable energy system is designed to feed the global Ac and Dc electrical required load of this safari rest. The benefits of photovoltaic renewable energy at rural applications are its versatility and convenience. This model of safari rest must be taken in consideration by Egyptian Government as it will provide the tourism plane by new interested tourism field which put a big spot on Red sea area: El Ghordaka.

An Efficient and Effective Approach to Developing Engineering E-Training Courses

2011 ◽  
pp. 26-39
Author(s):  
Judy C.R. Tseng ◽  
Wen-Ling Tsai ◽  
Gwo-Jen Hwang ◽  
Po-Han Wu
Keyword(s):  
New Technologies ◽  
Experimental Results ◽  
Traditional Learning ◽  
The Novel ◽  
Learning Materials ◽  
Challenging Issue ◽  
Novel Approach ◽  
Training Courses ◽  
Oriented Approach

In developing traditional learning materials, quality is the key issue to be considered. However, for high technical e-training courses, not only the quality of the learning materials but also the efficiency of developing the courses needs to be taken into consideration. It is a challenging issue for experienced engineers to develop up-to-date e-training courses for inexperienced engineers before further new technologies are proposed. To cope with these problems, a concept relationship-oriented approach is proposed in this paper. A system for developing e-training courses has been implemented based on the novel approach. Experimental results showed that the novel approach can significantly shorten the time needed for developing e-training courses, such that engineers can receive up-to-date technologies in time.

scholarly journals Problems in Electric Systems Caused by Harmonics and Solution Proposals

2021 ◽  
Vol 6 (1) ◽  
pp. 137-141
Author(s):  
Kemal Metin ◽  
Huseyin Ceylan ◽  
Ertugrul Demirkesen ◽  
Kadir Canatan ◽  
Mikail Hizli
Keyword(s):  
Rapid Change ◽  
Electrical Energy ◽  
Energy System ◽  
Energy Losses ◽  
Additional Energy ◽  
Electrical Systems ◽  
Electrical Devices ◽  
The Stability ◽  
Day By Day

Together with globalization, factories, companies and even countries can survive by competing with their rivals. Nowadays, technological superiority is one of the most important factors determining competitive power. This situation causes the result of rapid change and development of technology. Due to improvement in technology, humanity dependence on electricity is increasing day by day. Many new devices get in our lives, and both the continuity and quality of electricity comes across as an important issue. Different researches are carried out to make the energy more qualified and efficient. In terms of the stability of the used electrical devices, it is important to keep the harmonic amount in electrical energy under a certain value. Besides this, these unwanted harmonics cause additional energy losses in the energy system and negatively affect energy efficiency, which is an economically important problem. In this exercise, the problems in electrical systems, the damages in electrical devices caused by harmonics have been researched and various solution suggestions have been developed for this problem.

scholarly journals ANALISIS KELAYAKAN TURBIN ANGIN KECEPATAN RENDAH TIPE NT1000W DI WILAYAH TERPENCIL

2019 ◽  
Vol 10 (1) ◽  
pp. 84-93
Author(s):  
Redaksi Tim Jurnal
Keyword(s):  
Renewable Energy ◽  
Wind Speed ◽  
Wind Energy ◽  
Wind Turbine ◽  
Electrical Energy ◽  
Remote Communities ◽  
Low Speed ◽  
Energy Needs ◽  
One Step ◽  
Research Studies

This research discusses the fulfillment of the electricity needs of remote communities that are closely related to electrification ratios. Electrification ratios in some isolated areas and scattered islands in Indonesia are still very low. To date, most of the electricity needs in Indonesia is still supplied by Diesel Power Electricity Generator (PLTD) which uses diesel as its fuel. Therefore, it is necessary the utilization of renewable energy as one step to fulfill the electrical energy needs. This research studies about the utilization of wind energy with PLTB by using low speed wind turbine to fulfill the electricity needs of remote communities and scattered islands in Indonesia. NT1000W is the latest technology of low speed wind turbine that can operate at wind speed of 1 m/d up to 60 m/d appropriate to the wind conditions in Indonesia. Testing conducted in west Sumatera particularly in Padang city and Kapo-Kapo Island provide a feasibility of PLTB NT1000W technically and financially.

scholarly journals URGENSI PENGATURAN PENGEMBANGAN ENERGI TERBARUKAN SEBAGAI WUJUD MENDUKUNG KETAHANAN ENERGI NASIONAL

2021 ◽  
Vol 3 (1) ◽  
pp. 18-24
Author(s):  
Faisal Faisal
Keyword(s):  
Renewable Energy ◽  
Energy Security ◽  
Oil And Gas ◽  
Energy System ◽  
Energy Sector ◽  
Energy Needs ◽  
National Energy Security ◽  
Catch Up ◽  
The Government ◽  
Oil And Gas Sector

Energy sovereignty in Indonesia is experiencing problems with a decline in national energy security. Indonesia's energy system is currently facing serious challenges. The imbalance in the condition of energy supplies with national energy needs, especially the oil and gas sector and efforts to fulfill national energy needs in a sustainable manner are the main problems of this nation in the energy sector. It is absolutely necessary to have strategic efforts in the field of creating new and renewable energy. Although the government has issued various policies to catch up, but to realize national energy security, it is necessary to urgently regulate the development of renewable energy as a form of supporting national energy security. As for the formulation of the problems raised in this study are: support national energy security in Indonesia? 2) what is the urgency of regulating the development of renewable energy as a form of supporting national energy security? This research will use normative juridical research and supported by empirical juridical research so that it will be able to see the conditions of developing renewable energy as a form of supporting national energy security in Indonesia. To realize this, it is necessary to urgently regulate the development of renewable energy as a form of supporting national energy security.

scholarly journals Assessment of sustainability of different renewable energy systems based on life cycle exergy analysis

Tehnika ◽  
2021 ◽  
Vol 76 (5) ◽  
pp. 595-602
Author(s):  
Branislav Petrović ◽  
Milan Gojak
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Life Cycle ◽  
Exergy Analysis ◽  
Sustainability Assessment ◽  
Energy Systems ◽  
Electrical Energy ◽  
Energy System ◽  
Renewable Energy Resources ◽  
System Sustainability

The sustainable development of energy systems does not only involve the use of renewable energy resources but the increase in their efficiency as well, enabling society to maximise the benefits of their consumption. The production of electrical energy from clean and renewable sources contributes to lowered fossil fuel exploitation and the reduction of its damaging effect on the environment. This is a way to reach the global target of sustainable development - striking a balance between resource consumption and the achievable natural cycle regeneration. Environmental protection is in the focus of attention. Namely, when energy system sustainability is assessed, in addition to the ecological sustainability assessment (based on life cycle analysis - LCA), attention should be paid to the decrease in energy quality in energy processes (exergy loss). This paper presents the thermodynamic approach to energy system sustainability assessment by applying life cycle exergy analysis (LCEA). The key issue is the assessment of systems which use sustainable energy sources: the wind turbine and the stand-alone photovoltaic solar system.

scholarly journals POTENSI ENERGI PANAS BUMI, ANGIN, DAN BIOMASSA MENJADI ENERGI LISTRIK DI INDONESIA

2020 ◽  
Vol 22 (2) ◽  
pp. 105
Author(s):  
Nurul Amandha Adistia ◽  
Rizky Aditya Nurdiansyah ◽  
Juno Fariko ◽  
Vincent Vincent ◽  
Joni Welman Simatupang
Keyword(s):  
Renewable Energy ◽  
Literature Review ◽  
Human Resources ◽  
Systematic Literature Review ◽  
Geothermal Energy ◽  
Mineral Resources ◽  
Electrical Energy ◽  
Government Agency ◽  
Energy Needs ◽  
Installed Capacity

The need of energy increases each year. Likewise, the need for electrical energy increased proportionally with the economic development and Indonesian populations. To meet the needs of national electrical energy, the implementation of new and renewable energy is indispensable, such as geothermal energy, wind and biomass. They have substantial potential in Indonesia. This research aims to explore Indonesia’s capacity of new and renewable energy for electrical energy, as well as how much energy that can has already been utilized, and the constraints such as natural and human resources or other factors, to achieve the fulfil the target in 2025 about fulfilment of national electrical energy needs. This research uses Systematic Literature Review (SLR). The data are secondary, which are collected from several journals, research articles, media, and government agency reports, especially the Ministry of energy and mineral resources (ESDM). The result shows that for the installed capacity in the plan for 2019 - 2028, wind energy contributes the highest with 82,76%. Geothermal contributes 25.31%, and biomass contributes 4.92%. In fact, in this year of 2020, new and renewable energy could not meet the government's target. Several factors that impede the development of new and renewable energy, especially the geothermal, wind, and biomass, are funding, bad-coordinated plan, and also the implementation. Additionally, there is COVID-19 pandemic in 2020, and all funds are diverted for the treatment of the pandemic crisis.ABSTRAK:Kebutuhan akan energi terus meningkat seiring dengan bertambahnya waktu. Begitupun kebutuhan energi listrik yang semakin meningkat seiring perkembangan perekonomian dan penduduk Indonesia. Untuk memenuhi kebutuhan energi listrik nasional, maka peran Energi Baru Terbaharukan (EBT) sangat diperlukan, diantaranya panas bumi, angin, dan biomassa. Ketiga energi tersebut memiliki potensi yang cukup besar di Indonesia. Penelitian ini bertujuan untuk mengetahui potensi EBT di Indonesia menjadi energi listrik, serta seberapa besar energi yang sudah dapat dimanfaatkan, dan juga kendala-kendala baik alam maupun sumber daya manusia ataupun faktor lain, agar dapat mencapai target terdekat yaitu di tahun 2025 sebagai pemenuhan kebutuhan listrik negara dari EBT. Penelitian ini menggunakan metode Systematic Literature Review (SLR). Data yang dikumpulkan bersifat data sekunder, yaitu berupa pengumpulan jurnal dan artikel penelitian yang sudah ada, dari media massa, dan laporan dari badan pemerintah, khususnya kementerian ESDM. Berdasarkan hasil analisis kapasitas terpasang terhadap rencana energi tahun 2019 – 2028, energi angin memiliki persentase terbesar yaitu 82,76%, panas bumi sebesar 25,31%, dan biomassa sebesar 4,92%. Pada kenyataannya di tahun 2020 ini, EBT belum bisa mencapai target yang sudah ditetapkan oleh pemerintah. Hal ini dipengaruhi beberapa faktor penghambat kemajuan proyek pembangunan ataupun peningkatan hasil EBT khususnya panas bumi, angin, dan biomassa, seperti pendanaan, perencanaan yang tidak terkoordinasi dengan baik, dan implementasi yang sulit. Selain itu, di tahun 2020 masih terjadi pandemi COVID-19 yang menjadi faktor penghambat karena semua dana dialihkan untuk penanganan krisis pandemi.

SOUTH PATAGONIA: WIND/HYDROGEN/COAL SYSTEM WITH REDUCED CO2 EMISSIONS

2018 ◽  
pp. 80-87
Author(s):  
G. Spazzafumo
Keyword(s):  
Carbon Dioxide ◽  
Renewable Energy ◽  
Peak Power ◽  
Coal Gasification ◽  
Electrical Power ◽  
Electrical Energy ◽  
Power Production ◽  
Energy System ◽  
Underground Coal Gasification ◽  
South Patagonia

Wind is a significant renewable energy source in Patagonia, which could generate a very large amount of electrical energy. However, it is not possible to put such a large amount of energy on to the grid due to instability issues. Electrolysis could facilitate the storage of such energy in the form of hydrogen, which could be used for peak power production or for vehicles. However, hydrogen storage and distribution are still very expensive. On the other hand, South Patagonia has reserves of coal which exploitation is not easy. One solution could be underground coal gasification. Unfortunately, using coal results in high emissions of carbon dioxide. Hydrogen from wind energy could be the solution to convert coal to methane and to eventually generate electrical power. In this way, a large amount of renewable energy could be introduced to the energy system with a reduction in the emissions of carbon dioxide.

A virtual e-bespoke men's shirt based on new body measurements and method of pattern drafting

2020 ◽  
Vol 90 (19-20) ◽  
pp. 2223-2244
Author(s):  
Jiaqi Yan ◽  
Victor E Kuzmichev
Keyword(s):  
New Technologies ◽  
Apparel Industry ◽  
Morphological Features ◽  
Evaluation Procedure ◽  
Body Measurements ◽  
The Novel ◽  
Novel Approach ◽  
The One ◽  
High Level

Customization is prevailing in the apparel industry with increasing requirements from consumers and the popularization of new technologies. This study aimed to establish the novel approach of applying existing and new body measurements to customize the pattern block of a men's shirt, to enrich the anthropometric database, and to develop the fit evaluation procedure. New body measurements were extracted from 156 scanned male mesh bodies in accordance with the morphological features and developing method of pattern block sketching. Owing to these new body measurements, the customized shirt with assured high-level fit can be obtained by generating original patterns as bespoke, on the one hand, and by transforming ready-to-wear patterns, on the other hand. The first way is e-bespoke tailoring that utilizes the developed schedule of body morphological features, improved shirt pattern of desired style (body fit, slim fit, regular fit, and comfort fit), and virtual try-on software CLO 3D. The proposed method of virtual e-bespoke design allows readily completing a well-fitted and balanced men's shirt, which will contribute to the efficiency of customization and quality of end-products for the apparel industry.

scholarly journals Standalone Renewable Energy and Hydrogen in an Agricultural Context: A Demonstrative Case

2019 ◽  
Vol 11 (4) ◽  
pp. 951 ◽  
Author(s):  
Javier Carroquino ◽  
José-Luis Bernal-Agustín ◽  
Rodolfo Dufo-López
Keyword(s):  
Renewable Energy ◽  
Irrigation System ◽  
Treatment Plant ◽  
Energy System ◽  
Favourable Effect ◽  
Energy Management Strategy ◽  
Aggregate Consumption ◽  
Energy Needs ◽  
Production Of Hydrogen ◽  
Energy Surplus

Standalone renewable energy is widely used to power irrigation systems. However, in agricultural facilities, electricity from the grid and diesel are also consumed. The design and sizing of renewable generation involves difficulties derived from the different seasonal profiles of production and demand. If the generation is 100% renewable, a considerable energy surplus is usually included. This paper is focused on a renewable energy system, which has been installed in a vineyard, located in the northeast of Spain. With energy from the photovoltaic fields, the wastewater treatment plant of the winery, a drip irrigation system and other ancillary consumptions are fed. The favourable effect of combining consumptions with different seasonal profiles is shown. The existence of some deferrable loads and the energy management strategy result in an aggregate consumption curve that is well suited to production. Besides, the required energy storage is relatively small. The surplus energy is used for the on-site production of hydrogen by the electrolysis of water. The hydrogen refuels a hybrid fuel cell electric vehicle, used for the mobility of workers in the vineyard. In summary, electricity and hydrogen are produced on-site (to meet the energy needs) from 100% renewable sources and without operating emissions.

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