scholarly journals A 24-Channel Neurostimulator IC with Channel-Specific Energy-Efficient Hybrid Preventive-Detective Dynamic-Precision Charge Balancing

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Fatemeh Eshaghi ◽  
Esmaeil Najafiaghdam ◽  
Hossein Kassiri
Keyword(s):  
Specific Energy ◽  
Energy Efficient ◽  
Dynamic Precision ◽  
Charge Balancing

Energy Reduction and Optimisation in Membrane Bioreactor Systems

2010 ◽  
Vol 5 (4) ◽  
Author(s):  
Guihe Tao ◽  
Kiran Kekre ◽  
Maung Htun Oo ◽  
Bala Viswanath ◽  
Aliman MD Yusof ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Energy Efficient ◽  
Specific Energy Consumption ◽  
Pilot Scale ◽  
Energy Reduction ◽  
Energy Audit ◽  
Membrane Flux ◽  
Demonstration Plant ◽  
Set Up

One of the major components of MBR operating expenditure is energy consumption. This paper presents our six-year journey of energy reduction and optimization in MBR systems through various pilot and demonstration studies. Through comprehensive and systematic MBR optimisation studies, the specific energy consumption was reduced from 1.3 kWh m−3 to less than 0.8 kWh m−3 by increasing membrane flux and reducing aeration at 300 m3 per day pilot scale plants. Through energy audit, the key energy consumption components including process aeration, membrane scouring rate, SRT, MLSS level, MLSS recirculation, and energy efficient equipment selection were identified, and these were optimised one by one at 23,000 m3 per day municipal scale MBR demonstration plant after the baseline had been set up. The specific energy consumption was further reduced to 0.37 kWh m−3.

Energy efficient basestation operation with traffic-specific energy consumption

2013 ◽  
Author(s):  
Jinhyeock Choi ◽  
Seonmin Jung ◽  
Junhyuk Kim ◽  
June-Koo Kevin Rhee ◽  
Byung Moo Lee ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Specific Energy ◽  
Energy Efficient ◽  
Specific Energy Consumption

scholarly journals A Model-based Methodology for Application Specific Energy Efficient Data path Design Using FPGAs

2005 ◽  
Vol 12A (5) ◽  
pp. 451-460
Author(s):  
Ju-Wook Jang ◽  
Mi-Sook Lee ◽  
Sumit Mohanty ◽  
Seonil Choi ◽  
Viktor K. Prasanna
Keyword(s):  
Specific Energy ◽  
Energy Efficient ◽  
Data Path ◽  
Model Based ◽  
Path Design ◽  
Efficient Data ◽  
Application Specific

scholarly journals Low consistency refining of mechanical pulp — system design

TAPPI Journal ◽  
2017 ◽  
Vol 16 (7) ◽  
pp. 419-429 ◽  
Author(s):  
CHRISTER SANDBERG ◽  
JAN-ERIK BERG ◽  
PER ENGSTRAND
Keyword(s):  
Energy Efficiency ◽  
Specific Energy ◽  
Energy Efficient ◽  
Fiber Length ◽  
Specific Energy Consumption ◽  
Main Line ◽  
Thermomechanical Pulp ◽  
Line Production ◽  
Tensile Index ◽  
Printing Papers

Many mechanical pulping mills use low consistency (LC) refining for energy efficient fiber development. In this study, energy efficiency and pulp quality were evaluated for six processes, of which four included LC refining. We studied two different types of chip refiners – single disc (SD) and double disc (DD) – with LC refining in the main and reject lines. All process combinations have been used in the Holmen Paper Braviken mill, Sweden, to make thermomechanical pulp for printing papers. LC refining was more energy efficient than high consistency (HC) refining at certain tensile index increases in all evaluated combinations. LC refining in the main line had somewhat higher energy efficiency than did LC refining in the reject line. The type of chip refiner (DD or SD) did not affect the efficiency or pulp property development in LC refining. The process with a combination of DD chip refining and LC refining had the highest energy efficiency (tensile index at certain specific energy consumption). All processes with LC refining produced pulp with somewhat lower light scattering and fiber length than did the corresponding system with only HC refining. Thus, for printing papers, the best combination was LC refining with DD chip refining. LC refiners seem to have a narrow range in specific energy for maximum energy efficiency and a good balance between tensile index increase and fiber length reduction. Much higher specific energy was applied on reject pulp. However, the reject share was only around 30%. The LC refining specific energy, based on main line production, was around 80 kWh/air-dried metric ton (a.d. metric ton), whereas up to 180 kWh/a.d. metric ton was applied in main line.

scholarly journals Renewable lubricants with tailored molecular architecture

2019 ◽  
Vol 5 (2) ◽  
pp. eaav5487 ◽  
Author(s):  
Sibao Liu ◽  
Tyler R. Josephson ◽  
Abhay Athaley ◽  
Qile P. Chen ◽  
Angela Norton ◽  
...  
Keyword(s):  
Molecular Simulation ◽  
Functional Groups ◽  
Specific Energy ◽  
Energy Efficient ◽  
Molecular Design ◽  
Carbon Number ◽  
Molecular Architecture ◽  
Site Specific ◽  
Natural Oils ◽  
Branched Alkanes

We present a strategy to synthesize three types of renewable lubricant base oils with up to 90% yield using 2-alkylfurans, derived from nonfood biomass, and aldehydes, produced from natural oils or biomass through three chemistries: hydroxyalkylation/alkylation (HAA), HAA followed by hydrogenation, and HAA followed by hydrodeoxygenation. These molecules consist of (i) furan rings, (ii) saturated furan rings, and (iii) deoxygenated branched alkanes. The structures of these molecules can be tailored in terms of carbon number, branching length, distance between branches, and functional groups. The site-specific, energy-efficient C–C coupling chemistry in oxygenated biomass compounds, unmatched in current refineries, provides tailored structure and tunable properties. Molecular simulation demonstrates the ability to predict properties in agreement with experiments, proving the potential for molecular design.

Emerging investigator series: membrane distillation and high salinity: analysis and implications

2020 ◽  
Vol 6 (6) ◽  
pp. 1538-1552 ◽  
Author(s):  
Mukta Hardikar ◽  
Itzel Marquez ◽  
Andrea Achilli
Keyword(s):  
Energy Consumption ◽  
Temperature Difference ◽  
Specific Energy ◽  
Energy Efficient ◽  
High Salinity ◽  
Water Flux ◽  
Specific Energy Consumption ◽  
Membrane Distillation

In energy efficient membrane distillation, the low transmembrane temperature difference exacerbates salinity's effect on water flux and specific energy consumption.

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