scholarly journals An Analysis of Renewable Energy Usage by Mobile Data Network Operators

2021 ◽  
Vol 13 (4) ◽  
pp. 1886
Author(s):  
Sheraz Syed ◽  
Asad Arfeen ◽  
Riaz Uddin ◽  
Umaima Haider
Keyword(s):  
Renewable Energy ◽  
Total Energy ◽  
Carbon Emissions ◽  
Renewable Energy Sources ◽  
Mobile Network ◽  
Energy Requirements ◽  
Data Traffic ◽  
Energy Usage ◽  
Data Network ◽  
Mobile Data

The exponential growth in mobile data traffic has resulted in massive energy usage and therefore has increased the carbon footprint of the Internet. Data network operators have taken significant initiatives to mitigate the negative impacts of carbon emissions (CE). Renewable Energy Sources (RES) have emerged as the most promising way to reduce carbon emissions. This article presents the role of renewable energy (RE) in minimizing the environmental impacts of mobile data communications for achieving a greener environment. In this article, an analysis of some selected mobile data network operators’ energy consumption (EC) has been presented. Based on the current statistics of different mobile network operators, the future energy values are estimated. These estimations of carbon emissions are based on the predicted data traffic in the coming years and the percentage consumption of energy from renewable sources by the network operators. The analysis presented in this article would be helpful to develop and implement energy policies that accelerate the process of increasing the renewable shares in total energy requirements. Incrementing the share of renewable energy in total energy requirements can be a way forward to reach Goal 7 of the United Nations Sustainable Development Goals (SDGs).

DEVELOPMENT OF CONSTRUCTION OF THREE-INPUT GENERATING INSTALLATIONS ON BASED OF RENEWABLE ENERGY SOURCES

2018 ◽  
Author(s):  
Я.М. КАШИН ◽  
Л.Е. КОПЕЛЕВИЧ ◽  
А.В. САМОРОДОВ ◽  
Ч. ПЭН
Keyword(s):  
Renewable Energy ◽  
Kinetic Energy ◽  
Total Energy ◽  
Thermal Energy ◽  
Output Voltage ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Energy Sources ◽  
Voltage Regulator ◽  
The Sun

Описаны конструктивные особенности трехвходовой аксиальной генераторной установки (ТАГУ), преобразующей кинетическую энергию ветра и световую энергию солнца и суммирующей механическую, световую и тепловую энергию с одновременным преобразованием полученной суммарной энергии в электрическую. Показаны преимущества ТАГУ перед двухвходовыми генераторными установками. Дополнительное включение стабилизатора напряжения в схему ТАГУ позволило расширить область применения стабилизированной трехвходовой аксиальной генераторной установки за счет стабилизации ее выходного напряжения. The design features of the three-input axial generating installation (TAGI), which converts the kinetic energy of wind and light energy of the sun and sums the mechanical, light and thermal energy with the simultaneous conversion of the total energy into electrical energy, are described. The benefits of TAGI in front of the two-input generating installation shown. The additional introduction of a voltage regulator into the TAGI scheme allowed to expand the scope of the stabilized three-input axial generating installation by stabilizing its output voltage.

scholarly journals Biomass Sources and Energy Potential for Energy Sector in Myanmar: An Outlook

Resources ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 102 ◽  
Author(s):  
Maw Maw Tun ◽  
Dagmar Juchelková
Keyword(s):  
Renewable Energy ◽  
Total Energy ◽  
Forest Cover ◽  
Renewable Energy Sources ◽  
Energy Sector ◽  
Biomass Energy ◽  
Energy Utilization ◽  
Energy Potential ◽  
Total Energy Consumption ◽  
Biomass Resources

Nowadays, renewable energy utilization plays a key role in developing countries to fulfill the additional energy requirements of a country and reduce dependency on fossil fuels and traditional biomass consumption. As Myanmar has an agriculture-based economy and 48% of forest-cover (32.2 million hectares); biomass is one of the major renewable energy sources, contributing around 50% of total energy consumption. Therefore, the study aimed to highlight the available biomass sources and energy potential for the energy sector in Myanmar. In order to achieve the aim, the study collated the types, quantity and qualities of biomass resources, and energy utilization around Myanmar. Besides, the study synthesized and evaluated the energy potential of the major biomass resources coming from the agriculture sector, forest sector, livestock and poultry sector, and municipal sector. It was estimated that the total energy potential of the major biomass sources amounted to approximately 15.19 million tons of oil equivalent (Mtoe) in 2005 and 17.29 Mtoe in 2017, respectively. The unexploited biomass energy potential around the country was estimated to be nearly 50% higher than that of the projected biomass energy utilization during 2015–2019. Finally, the study concluded with recommendations to provide the future sustainable development of biomass energy in Myanmar.

scholarly journals Assessment of two different methods of calculating a heating demand

2019 ◽  
Vol 14 (2) ◽  
pp. 51-60
Author(s):  
Peter Turcsányi ◽  
Anna Sedláková
Keyword(s):  
Renewable Energy ◽  
Total Energy ◽  
Construction Industry ◽  
Performance Optimization ◽  
Fossil Fuel ◽  
Renewable Energy Sources ◽  
Energy Performance ◽  
Simulation Software ◽  
National Standards ◽  
Energy Sources

AbstractPhenomenon of today′s era is lowering overall energy performance and greenhouse gas emissions. European Union and its members came from an “uncontrollable” fossil fuel usage to an era of dependence reduction from fossil fuel usage. EU industry is now in era of utilizing renewable energy sources. Construction industry is responsible for 40% of total energy performance of EU; hence the great emphasis on energy effective design on new buildings as well as importance on energy effective renovation of already constructed buildings. Effort on lowering total energy performance in construction industry has signed on research on new project solutions, new insulation materials and new building services technologies which are maximizing energy gain from renewable energy sources. Simulation software and different engines are more than helpful tool when predicting building thermal behaviour. That is why simulation software is used more often in the process of designing energy efficient buildings or in the process of energy performance optimization of existing buildings. simulation and analytics itself, is dealing with simulation of chosen buildings (family houses) on heating demand based on the newest knowledge of constructions and materials. Results of heating demands of different family houses were confronted against heating demands calculated according national standards – using non-variable conditions. Next, the differences between two calculation approaches were characterized in percentages.

scholarly journals DETERMINATION OF STRUCTURAL ELEMENTS INTENDED TO RESISTANCE AGAINST EARTQUAKE AND RENEWABLE ENERGY USAGE

2015 ◽  
Vol 1 (2) ◽  
pp. 85-90
Author(s):  
Poyraz Kağan ◽  
František Kulhánek
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Working Environment ◽  
Seismic Zone ◽  
Structural Elements ◽  
Energy Usage ◽  
Preliminary Calculation ◽  
Innovative Solutions ◽  
High Level

The primary aim of office buildings is to provide a working environment with innovative solutions for the inclusion of needs of all positions including administrative and managerial workers. While offices can be appearing in almost any building; requirements complicate the construction. These requirements can be due to legal regulations, and technical needs. This study focuses on combined solutions via determination and preliminary calculation of structural components intended to resistance against earthquake and usage of possible renewable energy sources. The project building consists of 10 floors by way of application of reinforced concrete in conjunction with convenient application of heating, ventilating, and air conditioning (HVAC) systems, PV installation, high level of solar gain and interchangeable design. Static calculations are based on Turkish standards as Turkey is located over large seismic zone.

scholarly journals Performance Analysis of a Hybrid Micro-Energy System for SA Data Centers

2018 ◽  
Vol 64 ◽  
pp. 01003
Author(s):  
Thom Leholo Sempe ◽  
Adewale Owolawi Pius ◽  
Timothy Akindeji Kayode
Keyword(s):  
Renewable Energy ◽  
Fuel Cell ◽  
Data Centers ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Energy System ◽  
Total Power ◽  
Data Traffic ◽  
Actual Performance ◽  
Hybrid Renewable Energy System

The integration of hybridized renewable energy sources (RES) with AC/DC converters has become the focus of the 21st century for green Information Communication Technology (ICT) applications such as the data center. As the data traffic grows exponentially, the corresponding demand for energy to drive the growth becomes a great challenge and considering the environmental impact, a hybrid renewable energy system is favored for eco-sustainability and economic reasons. This is especially true for data centers which represent a dominant share of the total power in cellular networks. This paper evaluates the actual performance of a fuel cell in a renewable energy hybrid system considering the hybridization of photovoltaic (PV), Wind, Fuel Cell, and battery storage system with a choice of a half-grid mode. The reduction and the absence of available PV power by shading and rainy conditions will be easily reduced by the compensation of the other renewable sources. The modeling and simulations are performed using HOMER software. The results show the effectiveness of the proposed system as the energy supply is less intermittent and more stable.

Mobile Data Offloading for Streaming-Class Traffic with QoS Guarantee

2015 ◽  
Vol 7 (4) ◽  
pp. 26-42
Author(s):  
Anusree Ajith ◽  
T. G. Venkatesh
Keyword(s):  
Mobile Network ◽  
Network Capacity ◽  
Live Streaming ◽  
Data Traffic ◽  
Mobile Data ◽  
Qos Guarantee ◽  
Real Time Traffic ◽  
Video And Audio ◽  
Mobile Network Operators ◽  
Mobile Data Offloading

Faced with the tremendous increase in the amount of data traffic and associated congestion, mobile network operators are moving towards Heterogeneous networks (HetNets), in the process of expanding network capacity. Offloading data traffic onto Wi-Fi in order to avoid congestion in the backbone is an important step in the evolution of HetNets. On-the-spot and delayed offloading have been widely studied in the literature. This paper proposes an offloading algorithm which has low computational complexity. The proposed algorithm offloads data based on a balking function which is dependent on present network condition. Using extensive simulations, the authors demonstrate that the proposed algorithm achieves reduction in mean transmission delay without sacrificing much on the offloading efficiency. This technique is more efficient and applicable to real-time traffic, like live streaming video and audio, which has short and stringent delay requirements or deadlines.

Selection of Renewable Energy Sources for Sustainable Development and an Economic Model Proposal for Countries

2021 ◽  
pp. 1258-1276
Author(s):  
Alptekin Ulutaş ◽  
Coşkun Karaca
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Renewable Resource ◽  
Energy Requirements ◽  
Energy Sources ◽  
Multi Criteria Decision Making ◽  
Renewable Power ◽  
Employment Gain ◽  
Selection Of

Meeting the energy requirements with imported fuels leads to economic and political problems in the countries. Therefore, renewable energy investments continue to grow globally as a sustainable and increasingly economically viable alternative to conventional sources of energy. This study aims to reduce the share of imported fuels in Turkey's electricity generation and to estimate the employment gain to be provided by renewable energy investments to be established instead. Approximately 900,000 jobs are created during the production, construction, operational, and maintenance phases of additional 49,448 MW capacity renewable power plants to be installed. While analyzing, the decision on how much to invest in which renewable resource is determined with respect to multi-criteria decision making (MCDM) model.

Predicted Performance of an Integrated Solar Thermal and Photovoltaic System With Hybrid Turbine-Fuel Cell Cogeneration System With Cooling Loads

2008 ◽  
Author(s):  
Gregory J. Kowalski ◽  
Mansour Zenouzi
Keyword(s):  
Carbon Dioxide ◽  
Renewable Energy ◽  
Fuel Cell ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Utilization ◽  
Photovoltaic System ◽  
Energy Requirements ◽  
Cogeneration System ◽  
Cooling Loads

A general approach, the HLRP technique, for determining the performance of a hybrid turbine-fuel cell cogeneration system with a renewable energy sources is presented for a domestic residence for a summer day with cooling loads. The use of the ratio of the thermal load to required power parameter (HLRP), which scales the energy systems, allows the performance to be quickly determined and preliminary carbon dioxide production rates and cost effects to be estimated. The present paper includes solar energy systems, thermal and photovoltaic, as renewable energy to illustrate the development of this technique and its integration with the hybrid fuel cell cogeneration system. The analysis focused on matching the transient characteristics of the power and thermal loads with those of the renewable energy system. The results demonstrate that for a typical summer day in the location studied there are not large variations in the energy utilization factors for the four different systems investigated. Surprisingly, the photovoltaic system produces the lowest first law performance and the largest amounts of carbon dioxide. This observation points out the complexity of these systems. The explanation illustrates that saving power production while increasing the use of the most inefficient device (the furnace) decreases the system performance. The information provided by the performance graphs is used to estimate costs for each system and to easily determine which system is the most efficient for satisfying energy requirements and reducing green house gas emissions. The results provide site planners and physical plant operators with initial information that can be used to design new facilities or effectively integrate large plant expansion that include renewable energy systems in a manner that will minimize energy requirements and reduce pollution effects.

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