Energy-efficient recovery process of 2,3-butanediol using 2-heptanol extraction

2021 ◽  
Vol 160 ◽  
pp. 108286
Author(s):  
Seong Chan Lee ◽  
Hee Chul Woo ◽  
Young Han Kim
Keyword(s):  
Energy Efficient ◽  
Recovery Process ◽  
Efficient Recovery

A Heuristic Approach for Disassembly Sequencing Problem for Robotic Disassembly Operations

2012 ◽  
pp. 438-447
Author(s):  
Ahmed ElSayed ◽  
Elif A. Kongar ◽  
Surendra M. Gupta
Keyword(s):  
Genetic Algorithm ◽  
Value Added ◽  
Recovery Process ◽  
Electronic Products ◽  
Sequencing Problem ◽  
Material Recovery ◽  
Disassembly Sequence ◽  
Robotic Disassembly ◽  
Efficient Recovery ◽  
Disassembly Sequencing

Electronic products enter the waste stream rapidly due to technological enhancements. Their parts and material recovery involve significant economic and environmental gain. To regain the value added to such products a certain level of disassembly may be required. Disassembly operations are often expensive and the complexity of determining the best disassembly sequence increases as the number of parts in a product grows. Therefore, it is necessary to develop methodologies for obtaining optimal or near optimal disassembly sequences to ensure efficient recovery process. To that end, this chapter introduces a Genetic Algorithm based methodology to develop disassembly sequencing for end-of-life products. A numerical example is presented to provide and demonstrate better understating and functionality of the algorithm.

Study of EV Composite Power Supply for Energy Saving

2012 ◽  
Vol 578 ◽  
pp. 3-6
Author(s):  
Jin Yu Qu ◽  
Ru Wang ◽  
Ying Chao Zhou
Keyword(s):  
Power Supply ◽  
Energy Efficient ◽  
Energy Performance ◽  
High Energy ◽  
High Energy Density ◽  
Work Efficiency ◽  
Super Capacitor ◽  
Large Current ◽  
Performance Problem ◽  
Efficient Recovery

Composite power supply technology is an efficient way to solve the energy performance problem of EV, it makes battery with high energy density and super capacitor which has the advantage of high power combined with together. Using the super capacitor characteristics of instantaneous large current charge and discharge, when EV in starting, accelerating or climbing, provide the actuating motor for peak current; and when in braking, absorb the generator feedback current, so as to avoid the battery are damaged, prolong its service life, and realizes the braking energy efficient recovery. In this paper according to the characteristics of battery, super capacitor, and bidirectional DC/DC converter, use backward simulation model of electric vehicle to perform drive cycle. The results show that, the work efficiency of battery is enhanced by using the super capacitor, and to make the composite power supply obtain a higher braking energy recycling efficiency.

scholarly journals Energy-efficient bioethanol recovery process using deep eutectic solvent as entrainer

2021 ◽  
Author(s):  
Seong Chan Lee ◽  
Hyeon Woo Oh ◽  
Hee Chul Woo ◽  
Young Han Kim
Keyword(s):  
Energy Efficient ◽  
High Performance ◽  
Large Scale ◽  
Fermentation Broth ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Recovery Process ◽  
Liquid Equilibrium ◽  
Extraction Solvent ◽  
Industrial Operations

AbstractBioethanol is commonly recovered from fermentation broth via distillation because it is the most economical and reliable process for large-scale industrial operations. Because extraction is a highly energy-efficient process applicable to low-composition bio-product separation, high-performance solvents are necessary for efficient bioethanol recovery. 2-Methyl pentanol, a branched long-chain alcohol, which was used as the extraction solvent, and a deep eutectic solvent, choline chloride and ethylene glycol (1:2), was employed as an entrainer for product refinement. Thermodynamic models of vapor–liquid equilibrium (VLE) and liquid–liquid equilibrium (LLE) systems were derived using molecular simulations and experimental results to develop the bioethanol extraction and refinement processes. The heat duty of the designed process was reduced by a quarter compared to that of previous recovery processes. Graphic abstract

Energy-efficient recovery of black liquor through gasification and syngas chemical looping

2018 ◽  
Vol 219 ◽  
pp. 290-298 ◽  
Author(s):  
Arif Darmawan ◽  
Muhammad W. Ajiwibowo ◽  
Kunio Yoshikawa ◽  
Muhammad Aziz ◽  
Koji Tokimatsu
Keyword(s):  
Energy Efficient ◽  
Black Liquor ◽  
Chemical Looping ◽  
Efficient Recovery

scholarly journals Recovery From Injury in Sport: Considerations in the Transition From Medical Care to Performance Care

2009 ◽  
Vol 1 (5) ◽  
pp. 392-395 ◽  
Author(s):  
William Kraemer ◽  
Craig Denegar ◽  
Shawn Flanagan
Keyword(s):  
Health Care Providers ◽  
Return To Sport ◽  
Recovery Process ◽  
Athletic Injury ◽  
Return To Play ◽  
Care Providers ◽  
Strength And Conditioning ◽  
Medical Clearance ◽  
Specific Activities ◽  
Efficient Recovery

Return from athletic injury can be a lengthy and difficult process. The injured athlete commonly receives care from several providers during rehabilitation. As their condition improves, injured athletes resume strength and conditioning programs and sport-specific activities in preparation for return to play. Until full medical clearance is provided to return to sport and the athlete is psychologically ready to return to play, the injured athlete remains a patient regardless of who is developing and supervising each component of the recovery process. An understanding of and commitment to the plan of care for each athlete, as well as communication among health care providers, strength and conditioning specialists, coaches, and the athletes, are essential to the safest and most efficient recovery from injury.

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