scholarly journals Build Design Of Electric Bike As Energy Efficient Transportation

2020 ◽  
Vol 2 (2) ◽  
pp. 65-72
Author(s):  
Sundhy Pareza ◽  
Purwantono Purwantono ◽  
Remon Lapisa ◽  
Primawati Primawati
Keyword(s):  
Global Warming ◽  
Power System ◽  
Electric Motor ◽  
Power Output ◽  
Energy Efficient ◽  
Experimental Methods ◽  
Average Speed ◽  
Electric Bicycle ◽  
Electric Bike ◽  
Dc Electric Motor

The issue of global warming is very strong in the force in the procession, the damage caused by global warming is very influential in the survival of living beings. The methods performed in this study are experimental methods. The experiments performed were to make a design and to become a unity so that it formed a tool of electric bicycle transportation that can be used well. This thesis author devise and assemble electric bicycle using DC electric motor 24 Volt 250 Watt and 3000 rpm. The power system used is 24 Volt 12 Ampere battery. From the results of the test and analysis of data that has been taken on the electric bicycle obtained data of the average speed obtained by the electric bike with a load of 78 = 4.94 m/s, load 83 = 4.59 m/s, load 88 = 4.25 m/s, power output to drive electric bicycle with load 78 = 266.679 Watt, load 83 = 263.810 Watt, load 88 = 258.984 Watt. Isu pemanasan global sangat kuat di gencar disuarakan, kerusakan yang disebabkan pemanasan global sangat berpengaruh pada kelangsungan hidup makluk hidup. Metode yang dilakukan dalam penelitian ini adalah metode eksperimen. Eksperimen yang dilakukan adalah membuat sebuah rancangan dan merakitnya menjadi suatu kesatuan sehingga terbentuk sebuah alat transportasi sepeda listrikyang dapat digunakan dengan baik. Skripsi ini penulis merancang dan merakit sepeda listrik dengan menggunakan motor listrik DC 24 Volt 250 Watt dan 3000 rpm. Sistem daya yang digunakan adalah baterai 24 Volt 12 Ampere. Dari hasil pengujian dan analisis data yang telah diambil pada sepeda listrik didapatkan data berupa kecepatan rata-rata yang didapatkan sepeda listrik dengan beban 78 = 4,94 m/s, beban 83 = 4,59 m/s, beban 88 = 4,25 m/s, daya output untuk menggerakkan sepeda listrik  dengan beban 78 = 266,679 Watt, beban 83 = 263,810 Watt, beban 88 = 258,984 Watt.

A Pb/Zn Based Chemical Looping System for Hydrogen and Power Production With Carbon Capture

2011 ◽  
Author(s):  
Niall R. McGlashan ◽  
Peter R. N. Childs ◽  
Andrew L. Heyes
Keyword(s):  
Power System ◽  
Flue Gas ◽  
Power Output ◽  
Carbon Capture ◽  
Oxygen Carrier ◽  
Fluid Phase ◽  
Chemical Looping Combustion ◽  
Inlet Temperature ◽  
Chemical Looping ◽  
Lower Efficiency

This paper describes an extension of a novel, carbon-burning, fluid phase chemical looping combustion system proposed previously. The system generates both power and H2 with ‘inherent’ carbon capture using chemical looping combustion (CLC) to perform the main energy release from the fuel. A mixed Pb and Zn based oxygen carrier is used, and due to the thermodynamics of the carbothermic reduction of PbO and ZnO respectively, the system generates a flue gas which consists of a mixture of CO2 and CO. By product H2 is generated from this flue gas using the water-gas shift reaction (WGSR). By varying the proportion of Pb to Zn circulating in the chemical loop, the ratio of CO2 to CO can be controlled, which in turn enables the ratio between the amount of H2 produced to the amount of power generated to be adjusted. By this means, the power output from the system can be ‘turned down’ in periods of low electricity demand without requiring plant shutdown. To facilitate the adjustment of the Pb/Zn ratio, use is made of the two metal’s mutual insolubility, as this means they form in to two liquid layers at the base of the reduction reactor. The amount of Pb and Zn rich liquid drawn from the two layers and subsequently circulated around the system is controlled thereby varying the Pb/Zn ratio. To drive the endothermic reduction of ZnO formed in the oxidiser, hot Zn vapour is ‘blown’ into the reducer where it condenses, releasing latent heat. The Zn vapour to produce this ‘blast’ of hot gas is generated in a flash vessel fed with hot liquid metal extracted from the oxidiser. A mass and energy balance has been conducted for a power system, operating on the Pb/Zn cycle. In the analysis, reactions are assumed to reach equilibrium and losses associated with turbomachinery are considered; however, pressure losses in equipment and pipework are assumed to be negligible. The analysis reveals that a power system with a second law efficiency of between 62% and 68% can be constructed with a peak turbine inlet temperature of only ca. 1850 K. The efficiency varies as the ratio between power and H2 production varies, with the lower efficiency occurring at the maximum power output condition.

An Inverter can be Used in Hybrid Wind-Solar Grid-Connected Power System

2012 ◽  
Vol 512-515 ◽  
pp. 70-73 ◽  
Author(s):  
Yang Tian ◽  
Ru Cheng Han ◽  
Chen Li
Keyword(s):  
Global Warming ◽  
Power System ◽  
Sustainable Energy ◽  
Future Generations ◽  
Energy Sources ◽  
Grid Security ◽  
Operational Analysis ◽  
Harmonic Content ◽  
The Earth ◽  
Simulation Results

With increasing concern of global warming, many are looking at sustainable energy solutions to protect the earth for the future generations.. This paper presents a new inverter which can be used in hybrid wind/photovoltaic grid-connected power system. This inverter allows the two sources to work separately or simultaneously depending on the availability of the energy sources. Harmonic content is detrimental for the Grid security. The introduction of the inverter can effectively reduce the harmonics generated by the system. Operational analysis of the proposed system will be discussed in this paper. Simulation results are given to highlight the merits of the proposed inverter.

scholarly journals Dynamic Simulation and Control of a New Parallel Hybrid Power System

2020 ◽  
Vol 10 (16) ◽  
pp. 5467
Author(s):  
Po-Tuan Chen ◽  
Cheng-Jung Yang ◽  
Kuohsiu David Huang
Keyword(s):  
Fuzzy Logic ◽  
Power System ◽  
Internal Combustion Engine ◽  
Dynamic Simulation ◽  
Electric Motor ◽  
Fuzzy Logic Controller ◽  
Simulation Analysis ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Power Sources

To avoid unnecessary power loss during switching between the various power sources of a composite electric vehicle while achieving smooth operation, this study focuses on the development and dynamic simulation analysis of a control system for the power of a parallel composite vehicle. This system includes a power integration and distribution mechanism, which enables the two power sources of the internal combustion engine and electric motor to operate independently or in coordination to meet the different power-output requirements. The integration of the electric motor and battery-charging engine reduces the system complexity. To verify the working efficiency of the energy control strategy for the power system, the NEDC2000 cycle is used for the vehicle driving test, a fuzzy logic controller is established using Matlab/Simulink, and the speed and torque analysis of the components related to power system performance are conducted. Through a dynamic simulation, it is revealed that this fuzzy logic controller can adjust the two power sources (the motor and internal combustion engine) appropriately. The internal combustion engine can be maintained in the optimal operating region with low, medium, and high driving speeds.

scholarly journals Credit to the Bicycle

2010 ◽  
Vol 132 (07) ◽  
pp. 40-44
Author(s):  
Frank Wicks
Keyword(s):  
Internal Combustion Engine ◽  
Electric Power ◽  
19Th Century ◽  
Electric Motor ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Technological Innovations ◽  
Full Circle ◽  
Electric Bicycle ◽  
The 19Th Century

This article focuses on the engineering credit that should be given to the bicycle designs and its hand in today’s technological innovations. Design improvements during the first 90 years of the bicycle’s history provided much of the initial technology that was extended to modern motorized forms of transportation. More important than the bicycle’s effect on the close of the 19th century was its influence on the 20th. The most common hybrid vehicle of the future may not be the now familiar four-wheel automobile combining an internal combustion engine and electric motor, but the electric bicycle that can be powered either by a rider’s muscles or energy stored in a battery. A development like that would be almost full circle. The only difference between that future and the first safety bicycle would be that electric power was harnessed along the way.

Performance of a fractional dc electric motor equipped with plastic bonded Nd2Fe14B stator poles

1997 ◽  
Vol 81 (8) ◽  
pp. 5100-5102 ◽  
Author(s):  
G. K. Nicolaides ◽  
Y. K. Atanassova ◽  
M. G. Ioannides ◽  
D. M. Tsamakis ◽  
H. Gamari-Seale
Keyword(s):  
Electric Motor ◽  
Dc Electric Motor

A Study on Influence of Ramp Event of Aggregated Power Output of Photovoltaic Power Generation on Electric Power System Frequency

2017 ◽  
Vol 202 (3) ◽  
pp. 11-21 ◽  
Author(s):  
TAKEYOSHI KATO ◽  
YUSUKE MANABE ◽  
TOSHIHISA FUNABASHI ◽  
KAZUYA MATSUMOTO ◽  
MUNEAKI KURIMOTO ◽  
...  
Keyword(s):  
Power Generation ◽  
Power System ◽  
Electric Power ◽  
Power Output ◽  
Electric Power System ◽  
Photovoltaic Power ◽  
System Frequency
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