Laser compression of matter: optical power and energy requirements

1974 ◽  
Vol 14 (6) ◽  
pp. 797-803 ◽  
Author(s):  
R.E. Kidder
Keyword(s):  
Optical Power ◽  
Energy Requirements ◽  
Power And Energy

scholarly journals A New Method for the Calculation of Energy and Power Requirements of Bucket Wheel Excavators

2019 ◽  
Vol 10 (1) ◽  
pp. 15-20
Author(s):  
József András ◽  
József Kovács ◽  
Endre András ◽  
Ildikó Kertész ◽  
Ovidiu Bogdan Tomus
Keyword(s):  
Energy Consumption ◽  
Numerical Method ◽  
Horizontal Plane ◽  
Vertical Plane ◽  
New Method ◽  
Energy Requirements ◽  
Belt Conveyor ◽  
Analytical Formulas ◽  
Power And Energy ◽  
Continuous Working

Abstract The bucket wheel excavator (BWE) is a continuous working rock harvesting device which removes the rock by means of buckets armoured with teeth, mounted on the wheel and which transfers rock on a main hauling system (generally a belt conveyor). The wheel rotates in a vertical plane and swings in the horizontal plane and raised / descended in the vertical plane by a boom. In this paper we propose a graphical-numerical method in order to calculate the power and energy requirements of the main harvesting structure (the bucket wheel) of the BWE. This approach - based on virtual models of the main working units of bucket wheel excavators and their working processes - is more convenient than those based on analytical formulas and simplification hypotheses, and leads to improved operation, reduced energy consumption, increased productivity and optimal use of available actuating power.

scholarly journals A general method for sizing battery energy storage systems for use in mitigating photovoltaic flicker

2017 ◽  
Author(s):  
◽  
William Noah Wills
Keyword(s):  
Energy Storage ◽  
Storage Systems ◽  
Lithium Ion ◽  
Energy Requirements ◽  
Photovoltaic Generation ◽  
Battery Energy Storage ◽  
Battery Energy Storage Systems ◽  
Battery Energy ◽  
Power And Energy ◽  
General Method

A method for sizing battery energy storage (BES) systems for use in mitigating voltage flicker caused by solar intermittency in photovoltaic generation was developed. The method creates a "design day" from existing solar data and designs the power and energy requirements for a BES system that can help a photovoltaic facility mitigate flicker caused by solar activity associated with the design day. An economic analysis of lead-acid and lithium-ion options for the BES was also developed. The method was then applied to a proposed photovoltaic project in the Midwestern United States.

Power and Energy Requirements of Small Hard-Hose Travelers

1991 ◽  
Vol 7 (5) ◽  
pp. 551-556
Author(s):  
E. W. Rochester ◽  
S. G. Hackwell
Keyword(s):  
Energy Requirements ◽  
Power And Energy

A Robotic “Jack Spring”™ for Ankle Gait Assistance

2005 ◽  
Author(s):  
Kevin W. Hollander ◽  
Thomas G. Sugar ◽  
Donald E. Herring
Keyword(s):  
Peak Power ◽  
Energy Requirements ◽  
Linear Actuator ◽  
Direct Drive ◽  
Structure Control ◽  
New Type ◽  
Power And Energy ◽  
The Ideal

A Robotic ‘Jack Spring’™ is a new type of mechanical actuator, which is based upon the concept of structure control. A Jack Spring™ mechanism is used to create an adjustable Robotic Tendon, which is a spring based linear actuator in which the properties of a spring are crucial to its successful use in gait assistance. Like its human analog, the adjustable Robotic Tendon uses its inherent elastic nature to reduce both peak power and energy requirements for its motor. In the ideal example, peak power required of the motor for ankle gait is reduced from 250W to just 81 W. In addition, ideal energy requirements are reduced from nearly 36 Joules to just 25 Joules per step. Using this approach, an initial prototype is expected to provide 100% of the power and energy neccessary for ankle gait in a compact 0.84kg package. This weight is 8 times less than that predicted for an equivalent direct drive approach.

scholarly journals Optical power and energy radiated by natural lightning

2013 ◽  
Vol 118 (4) ◽  
pp. 1868-1879 ◽  
Author(s):  
Mason G. Quick ◽  
E. Philip Krider
Keyword(s):  
Optical Power ◽  
Power And Energy
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