scholarly journals A Comparative Analysis of Energy Efficient Mobile Offloading Mechanisms

2020 ◽  
Vol 9 (1.3) ◽  
pp. 338-341
Author(s):  
Anoop S
Keyword(s):  
Comparative Analysis ◽  
Energy Efficient ◽  
Mobile Offloading

scholarly journals Natural Ventilation for Energy Efficient Office Buildings: A Comparative Analysis on Three Buildings In Kuala Lumpur

2019 ◽  
Vol 11 (4) ◽  
Author(s):  
Nurul Akmam Naamandadin ◽  
◽  
Norrazman Zaiha Zainol ◽  
Siti Nur Aishah Mohd Noor ◽  
Abdul Razak Sapian ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Energy Efficient ◽  
Natural Ventilation ◽  
Office Buildings ◽  
Kuala Lumpur

scholarly journals Heat power analysis of performance indicators blast furnace No. 3 PJSC «AZOVSTAL IRON & STEEL WORKS» with natural gas and pulverized coal after oven overhaul of blast furnace

2020 ◽  
pp. 47-61
Author(s):  
A.L. Chaika ◽  
B.V. Kornilov ◽  
A.A. Moskalina ◽  
V.V Lebed ◽  
M.G. Dzhigota ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Comparative Analysis ◽  
Natural Gas ◽  
Energy Efficient ◽  
Pulverized Coal ◽  
Pig Iron ◽  
Heat Power ◽  
Technical And Economic Indicators ◽  
Steel Works

In 2019, according to the technological assignment of the Iron and Steel Institute (ISI), the reconstruction of the blast furnace (BF) No. 3 of PJSC «AZOVSTAL IRON & STEEL WORKS» was carried out for the long-term energy-efficient production of pig iron with using pulverized coal (PCI) up to 180 kg/t with a change in the profile according to the technological task of ISI. The design of the BF No. 3 profile corresponds to the best world solutions for furnaces efficiently working with pulverized coal, and the furnace was equipped with five mathematical models of ISI («Horn», «Mine», «Heat losses», «Loading», «Slag»). Specialists of ISI developed recommendations and carried out technological support for the operation of BF No.3, which made it possible to increase the removal of pig iron from the design 2.1 t/m3 to 2.27 t/m3 and achieved the best indicators in the blast furnace workshop in terms of coke and equivalent fuel consumption by increasing the productivity of the burden system, using a rational burden loading matrix, using a rational pressure drop in the furnace, which allows the maximum use of the power of the blower machine, forcing the furnace with technical oxygen and other measures. Using the heat power model of I.D. Semikin was made a comparative analysis of the best for six months indicators of thermal performance and technical and economic indicators of BF №3 of PJSC «AZOVSTAL IRON & STEEL WORKS», with a volume of 1800 m3 before (work with natural gas) and after major repairs (work with pulverized coal and with natural gas). Using the exergy method of analysis based on the results of calculating heat and power balances, a comparative analysis of changes in the energy efficiency and environmental indicators of BF No. 3 before and after its major repairs was carried out. It shown the expediency of integrated mastering of operating modes and modernization of the blast furnace for long-term and energy-efficient operation with pulverized coal. It disclosed the mechanism for improving the technical and economic indicators of work after major repairs by changing the heat and power conditions of the blast furnace. Its shown Improvement of exergy efficiency factor and environmental performance of BF No. 3 after major repairs.

scholarly journals Comparative Analysis of V-Band and E-Band mmWaves for Green Backhaul Solutions for 5G Ultra-Dense Networks

2021 ◽  
pp. 115-124
Author(s):  
Ayodeji A. Ajani ◽  
◽  
Vitalice K. Oduol ◽  
Zachaeus K. Adeyemo ◽  
Ebude C. Awasume
Keyword(s):  
Energy Efficiency ◽  
Comparative Analysis ◽  
Power Consumption ◽  
Energy Efficient ◽  
Small Cells ◽  
Network Simulator ◽  
Form Complex ◽  
Dense Networks ◽  
Wireless Backhaul ◽  
V Band

5G Ultra-Dense Networks (UDNs) will involve massive deployment of small cells which in turn form complex backhaul network. This backhaul network must be energy efficient for the 5G UDN network to be green. V-band and E-band mmWave technologies are among the wireless backhaul solutions tipped for 5G UDN. In this paper, we have compared the performance of the two backhaul solutions to determine which is more energy efficient for 5G UDN. We first formulated the problem to minimize power, then proposed an algorithm to solve the problem. This was then simulated using Network simulator 3.The first scenario made use of V-band mmWave while thesecond was E-band mmWave. The performance metricsused were power consumption and energy efficiency againstthe normalized hourly traffic profile. The performances ofthe two solutions were compared. The results revealed thatE-band mmWave outperformed V-band mmWave inbackhauling traffic in 5G UDN. It can be concluded that E-band green backhaul solution is recommended over V-bandmmWave for 5G UDN.

scholarly journals Performance Evaluation of Bus Rapid Transit System: A Comparative Analysis of Alternative Approaches for Energy Efficient Eco-Friendly Public Transport System

Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1377 ◽  
Author(s):  
Syyed Adnan Raheel Shah ◽  
Monib Shahzad ◽  
Naveed Ahmad ◽  
Abdullah Zamad ◽  
Sabahat Hussan ◽  
...  
Keyword(s):  
Developing Countries ◽  
Comparative Analysis ◽  
Energy Efficient ◽  
Bus Rapid Transit ◽  
Rapid Transit ◽  
Transit System ◽  
Public Transport System ◽  
Hybrid Bus ◽  
Conventional Fuel ◽  
Bus System

The development of the bus rapid transit system (BRTS) is tremendously growing in developing countries of the world. In large cities, the projection of transportation intends to enhance economic growth and changes the image of the city for both residents and outsiders. The purpose of this research was to study the application of alternative options for energy efficient BRTS in developing countries. The BRTS has some of its accessibility patterns that relate to the socio-economic strata. A decision-making efficiency analysis methodology has been applied to analyze the comparative analysis of both conventional fuel and hybrid bus systems for the Multan city of Pakistan. The section-wise application of a hybrid energy-based bus system has been analyzed in comparison to the conventional bus system. Out of 21 stations, the efficiency-wise hybrid bus system remained superior or equivalent to the standard value of 1 except one midpoint section. The finding of the analysis indicates that the hybrid mechanism of buses can not only replace a conventional fuel-based system, but will also help as an energy-efficient and eco-friendly economical solution. This study will help to revolutionize the bus rapid transit system in developing countries.

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