Engineering
Favorites|Homepage
Subscriptions | sitemap
HOME > Engineering > Engineering

Engineering

Why generators synchronize at the same speed

When we connect a generator to a grid it would start to be synchronized with the grid electrical frequency and if two generators have the same grid and same poles number then they would have same rota

Liquid cooling, cool

I am currently building a laptop cooler. The design I have is ready to be built, and my original design has a patent pending. The one I am building is more just for complete overkill, while looking go

How do I solve this the armature current in a 3-phase generator

A single-phase, full-wave controlled bridge rectifier supplies a permanent magnet dc motor. The rectifier is connected to a 240V ac voltage source and absorbs 1200W of active power and 1000VAR of reac

Height of the bridge at center

An arch of a bridge is built in the shape of half an ellipse. It has a span of 120 feet. The height of the arch 20 feet from the center is 18 feet. Find the height at the center.-Let the center of the

What is a stratified chilled water storage tank

What is a stratified chilled water storage tank?-It is a component in a chilled water system utilizing the water’s natural tendency to stratify. The lower temperature water will settle at the low part

How to Convert deg C to deg F

I want a simple answer not those in an equation format!-Multiply the value of deg C by 1.8 then add 32-What other answer could I possibly give you other than an equation format?-Double it subtract ten

What is the most Slippery Substance in the world

Teflon or polytetrafluoroethylene (PTFE). PTFE is most well known by the DuPont brand name Teflon. PTFE is used as a non-stick coating for pans and other cookware.-It depends what medium your substanc

How to convert 100L/h to kg/h

It Depends on the liquid substance. Assuming it is water which has a density of 1000kg / cu. meter @ Standard condition. It is equivalent to 1kg/L So: 100L/h x 1kg/L = 100 kg/h-Youre asking to convert

Does anybody know of a white material that changes to black when an electric current is introduced

Im working on a clock where I would cut the numbers out of said material, and have an arduino vary the amount of current sent to the material to make the present time black and then a gradient to whit

Slide rules , used before the popularity of pocket calculators

what exactly did they do , was it multiplication tables only, or a lot more-Slide rule could do much more than multiplication.My father used one when he was studying engineering and Ive spent a lot of

What is the relationship between the diameter of a plunger and the capacity of the pump

I think there is no relationship between the diameter of a plunger and the capacity of a pump.Actual relation ship is between the volume of the plunger and the capacity of a machine.The volume the plu

Electrical engineering help with understanding power factor

the problem from my book says: customer uses avg 750 kVA in 720 hr-month. Pwr factor = 0.8. what is the monthly charge? real pwr = apparent pwr (PF) = 750 (0.8) = 600 kw. the charge is $0.04/kwh. 600k

Is it possible for a computer system to melt it's own solder

Could an improperly cooled computer system such as a Playstation 3 reach high enough temperatures to melt its own solder? It seems very improbable to me, but I really dont know for sure. Any info on h

What is difference between ball valve,gate valve & butterfly valve

also i want to know their application areas-Ball valves, as the name implies, are stop valves that use a ball to stop or start the flow of fluid. A gate valve, also known as a sluice valve, is a valv

Derivative of x^x^x

Y=x^(x^x) logy=x^xlogx log(logy)=logx^x + logx log(logy)=xlogx +logx 1/ylogy* dy/dx= 1+logx + 1/x dy/dx=x^(x^x) * x^xlogx[1+logx+1/x] Where right answer is – dy/dx= x^x^x * x^x[(1+logx)logx +1/x] wh
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .