Unravelling the enhancement of biohydrogen production via adding magnetite nanoparticles and applying electrical energy input

This paper presents a study on the electrothermal explosion of metallic powders produced by a pulsed high voltage generator, which is a fast-discharge capacitive storage device. The character of instantaneous current, voltage were measured and studied. The energy-utilization ratio was calculated and analyzed. It is shown that the maximum current density and current rise rate obtained during electrothermal explosion of Cu powder were of the order of 108A/cm2 and 1013A/s, respectively. The total energy deposited on exploding was 38.57%~65.90% of the total electrically stored energy, and increased with the charging voltage and powder masses exploding increasing. Meanwhile, the electrical energy applied to the powder was estimated to be about 1.5~2 times the energy theoretically required to vaporization of the powder and metallic exploding. And the energy input in exploding supplied by circuit increased with the charging voltage and the metallic powder conductor height increasing.

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Biohydrogen production from sugarcane bagasse hydrolysate: effects of pH, S/X, Fe2+, and magnetite nanoparticles

Environmental Science and Pollution Research ◽

10.1007/s11356-017-8560-1 ◽

2017 ◽

Vol 24 (9) ◽

pp. 8790-8804 ◽

Cited By ~ 42

Author(s):

Karen Reddy ◽

Mahmoud Nasr ◽

Sheena Kumari ◽

Santhosh Kumar ◽

Sanjay Kumar Gupta ◽

...

Keyword(s):

Sugarcane Bagasse ◽

Magnetite Nanoparticles ◽

Biohydrogen Production ◽

Sugarcane Bagasse Hydrolysate ◽

Effects Of Ph

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Electrification of a Heavy-Duty CI Truck—Comparison of Electric Turbocharger and Crank Shaft Motor

Energies ◽

10.3390/en14051402 ◽

2021 ◽

Vol 14 (5) ◽

pp. 1402

Author(s):

Kristoffer Ekberg ◽

Lars Eriksson ◽

Christofer Sundström

Keyword(s):

Optimal Control ◽

Energy Storage ◽

Electric Motor ◽

Energy Input ◽

Energy Savings ◽

Electrical Energy ◽

Electric Motors ◽

Cost Factor ◽

The Cost ◽

Cost Factors

A combustion engine-driven vehicle can be made more fuel efficient over some drive cycles by, for example, introducing electric machines and solutions for electrical energy storage within the vehicle’s driveline architecture. The possible benefits of different hybridization concepts depend on the architecture, i.e., the type of energy storage, and the placement and sizing of the different driveline components. This paper examines a diesel electric plug-in hybrid truck, where the powertrain includes a diesel engine supported with two electric motors, one supporting the crank shaft and one the turbocharger. Numerical optimal control was used to find energy-optimal control strategies during two different accelerations; the trade-off between using electrical energy and diesel fuel was evaluated using a simulation platform. Fixed-gear acceleration was performed to evaluate the contribution from the two electric motors in co-operation, and individual operation. A second acceleration test case from 8 to 80 km/h was performed to evaluate the resulting optimal control behavior when taking gear changes into account. A cost factor was used to relate the cost of diesel fuel to electrical energy. The selection of the cost factor relates to the allowed usage of electrical energy: a high cost factor results in a high amplification from electrical energy input to total system energy savings, whereas a low cost factor results in an increased usage of electrical energy for propulsion. The difference between fixed-gear and full acceleration is mainly the utilization of the electric crank shaft motor. For the mid-range of the cost factors examined, the crank shaft electric motor is used at the end of the fixed-gear acceleration, but the control sequence is not repeated for each gear during the full acceleration. The electric motor supporting the turbocharger is used for higher cost factors than the crank shaft motor, and the amplification from electrical energy input to total energy savings is also the highest.

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Enhanced anaerobic digestion of phenol via electrical energy input

Chemical Engineering Journal ◽

10.1016/j.cej.2020.124501 ◽

2020 ◽

Vol 389 ◽

pp. 124501 ◽

Cited By ~ 3

Author(s):

Alsayed Mostafa ◽

Seongwon Im ◽

Mo-Kwon Lee ◽

Young-Chae Song ◽

Dong-Hoon Kim

Keyword(s):

Anaerobic Digestion ◽

Energy Input ◽

Electrical Energy

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Improving biohydrogen production using Clostridium beijerinckii immobilized with magnetite nanoparticles

Applied Microbiology and Biotechnology ◽

10.1007/s00253-015-6484-6 ◽

2015 ◽

Vol 99 (9) ◽

pp. 4107-4116 ◽

Cited By ~ 30

Author(s):

Trevor Seelert ◽

Dipankar Ghosh ◽

Viviane Yargeau

Keyword(s):

Magnetite Nanoparticles ◽

Clostridium Beijerinckii ◽

Biohydrogen Production

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Comparative Study on Storage of Fruits and Vegetables in Evaporative Cool Chamber and in Ambient

International Journal of Food Engineering ◽

10.2202/1556-3758.1147 ◽

2008 ◽

Vol 4 (1) ◽

Cited By ~ 8

Author(s):

Sushmita Mukherjee Dadhich ◽

Hemant Dadhich ◽

RadhaCharan Verma

Keyword(s):

Weight Loss ◽

Comparative Study ◽

Energy Input ◽

Fruits And Vegetables ◽

Evaporative Cool ◽

Electrical Energy ◽

Significant Loss ◽

Ambient Condition ◽

Cool Chamber ◽

Unskilled Labour

An evaporative cool chamber was constructed with the help of baked bricks and riverbed sand. Maximum and Minimum temperature and relative humidity were recorded inside and outside the chamber for about one month. It was found that inside temperature was about 10-15°C lower than outside temperature and inside humidity was about 30-40 % higher than outside. A comparative study was made for the storage of different fruits and vegetables inside the cool chamber and in the ambient condition and their weight loss and freshness were observed everyday. It has been recorded that weight loss of fruits and vegetables kept inside the chamber was lower than those stored outside the chamber. The fruits and vegetables were fresh up to 3 to 5 days more inside the chamber than outside. The evaporative cool chamber does not require mechanical or electrical energy input and can be constructed with locally available material with unskilled labour. It is economical and can store the fruits and vegetables for 3 to 5 days with no significant loss.

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