An air-filled capacitor consists of two parallel plates, each with an area of 7.6 cm2, separated by a distance?
A condenser filled Air is composed of two parallel plates, each with an area of 7.6 cm2, separated by a distance of 2.20 mm. If a 16.0 V potential difference applied to these plates, calculate the following. (A) the electric field between the plates kV / m (b) the ability pF (c) the charge on each plate pC
b) 3.05 pF c) = q = 16 hp * 3.05 = 48.8 pC pC a) = VE / d = 16 / (2.2 x 10 ^ -3) = 7.27 x 10 ^ 3 volts / meter .. hope this helps:)
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Air Knives Vs. Compressed Air Blow Off Systems
Oleg Systems Co. is a designer and manufacturer of high velocity blowoff airknife systems for industrial applications. Its air knives, air cannons and process air curtains serve well in tough industrial environments for liquids blow-off, process colling, air-barrier space separation, conveyor belt cleaning and other process applications.Industrial manufacrurers that traditionally used compressed air for their blow-off requirements have realized the problem stemmed from their use of compressed air.
Employees with compressed air guns are unable to completely blow off cleaner / phosphate solution from steel parts surface as they emerge at high speed from industrial washer. Moreover, the cost to make the compressed air is excessive. Compressed air may be the most expensive product a plant can make using electricity; so that using of compressed air for blow-off applications is considered by many industrial users as “just one huge air leak”.Another common problem at industrial facilities is lack of space to establish a normal drying line, forcing them to look for a blowoff technique that could be installed in an absolute minimum of space.
Oleg Systems Co. has developed an universal blowoff air knife system that includes a super high pressure centrifugal blower and a system of tubular slot air knives, that completely replaces traditional compressed air blowoff systems, and save money due to much higher operating efficiency. A flexible PVC pipe is sued to feed Air Knives from the outlet og high pressure blower. Adjustble slot opening at each air-knife enables to regulate the air velocity and volume, as well as “focus” air blow off system on a certain distance from a flat surface that has to be dryed. If necessary an additional air damper at the blower can be added fro more flexibility. An inlet blower Filter helps to eleiminate any dust and solid particles inside the blower and air knives. Typical air velocity at the exit from Air Knife reaches 30,000 – 40,000 feet per minute, that provides efficient flowoff effect even with relatively high-speed conveyor lines.A sophisticated support system for Air Knives also allows for directional adjustment of the air flow around moving parts. With this elaborated air adjustment system it is easy for an employee to re-direct blow-off air to handle whatever industrial process configuration is being run at any given time.
An added bonus is that Oleg Systems AirKnives let its customers free up at least 80% of an employee’s time. For manufacturers running two or three shifts a day, those man-hour savings add up to substantial cost savings.The maintenance of the system is minimal, it consists of air filter replacing ones in few months… it takes may be ten minutes… that’s all the regular maintenance that the blowoff system requires.Standard material of Air-Knife construction includes a mild steel blower and aluminum air-knife body with steel powder coated or stainless steel support columns. But some tough industrial applications might necessiate using of stainless steel air knives or stainless blowers, that are available from Canadian Air Systems too; as well as inline De-Ionizing accessory.
Oleg Systems Co. is a world’s leading engineer and manufacturer of high-penetration air-knives for a variety of industrial process applications:
* Fast Air Cooling
* Conveyor Belt Cleaning
* Liquids Blow-Off Devices
* Conveyor Dryers
* Process Air Curtains
for various industries and applications:
- plastic industry;
- glass manufacturing blow off and cooling;
- automotive parts production;
- beverage bottles conveyor drying;
- pallets cleaning;
- industrial environmental air barriers for fume separation.
Air knives are available in extruded aluminum, welded steel, stainless steel, plastic construction; lengths from 12″ to 144″; air velocities up to 40,000 Ft/min; adjustable slot opening, flexible support structures; precise focusing systems.
For special applications Oleg Systems Co. offer air canons and air nozzles to achieve turbulent high velocity air flow.
For additional information please refer to http://www.olegsystems.com/index.html.
Oleg Chetchel
Systems Designer
Oleg Systems Co.
http://www.olegsystems.com/airknife/Index.html
About the Author
Oleg Chetchel
Ventilation Equipment Designer
Tenderall Fan Co.
http://tenderall.com
