Dry nitrogen for transformer transportation

What is the difference between dry air and dry nitrogen?I have been checking my transformer manual to know the gas that was actually present in the cylinder before transportation, so that i can refill the cylinder,but as i write i am yet to know if it was dry air or dry nitrogen.Is there a way i can

Lean Initiatives Limping?

A Wall Street Journal article titled "Where Process-Improvement Projects Go Wrong" claims that as many as 60% of corporate Six Sigma initiatives fail to yield the desired results. "Amid the confusion and facing pressure from managers to keep up with day-to-day duties," the author writes, explaining

Fussy Eaters Decline Feedstocks

Retail energy consumers have long been able to pick and choose their suppliers, but specific feedstocks were rarely a deciding factor. Recent decisions not to use Canadian oil sand derivatives by food retailer Whole Foods Market and housewares giant Bed Bath and Beyond are changing the game. Oil san

MEMS Sensors for Consumer Markets

Recently, HP Laboratories Senior Researcher Peter Hartwell called on engineers to rethink MEMS sensor design for the masses and adopt a nano-based approach that could allow development of a MEMS-based inertial measurement unit suitable for consumer electronics. Despite improvements in cost, sizes an

turbine types

Greeting all,

I need some information regarding to turbine types.

I know the below information but need more explaination if anyone has.

High head plant : Impulse turbines
Medium head plant : I dont know what type
Low head plant : Reaction turbines
Ver low head : bulb tubines or tu

increase the radiographic test percentage

dear sirs,

i hope all fine ,

can you help me to know the percentage of defects that according to it we should in increase the radiographic percentage in

1-tanks according to api 650

2-piping net works asme b31.3

3-pipe line api1104

for example :

i take x-ray for

How to say 0.001" or 0.01mm orally?

I am a Chinese,I often deal with drawings in INCH unit.

As the 0.001",it is very unconvenient if I pronounce it as O point O O one inch,

and as the 0.01mm,it is very unconvenient either if I pronounce it as O point O one millimetter.

Can anybody tell me how to say 0.001" or 0.01mm ora

Engineering Convertions

In a High Pr.Centrifugal Fan the Total Pr.written as 9096 Pa & Pr. rise as 8500 Pa & asked Q at the out let as 64 Nm3/min. So how shall I calculate the Q at a) 50 deg. C & b) 8 deg. C.( Air is sucked by the fan from atmosphear)

Finally to get power at 8 & 50 deg. centrigrade.

High Speed Diesel

Dear All,

What is the speciality of high speed diesel(HSD)? Is it necessary to use only HSD in newly procured DG sets. what will happen if we use, ordinary diesel. Can the diesel that is used in trucks be used in DG sets also??

Is there something called high speed petrol? if not, why??

Rega

NACE 0175 – PREQUALIFIED MATERIALS

1,In Nace MR 0175 there are Prequalified Materials such as A333, A106 etc., there materials doesnt require any SSC,HIC test.

My query is...

In what basis these materials are qualified?

2,In Process H2S line it is not advised to use Socketweld and threaded ends.

My query is...

power factor of an induction motor.

dear friends,

while we use a running/starting capacitor in a single phase induction motor/pump, but not in three phase. so can u explain me, about the power factor of it? is this capacitor only increase the power factor of the motor? plz explain me...

thanking,

rubana

Cold forming force

Hi Friends,

We are planning to form the dished ends in 3 stages. Details of dish end is given below.

Dia of blank= 600mm

Thickness of plate=7.2mm

ID of dish end= 340mm

Straight face of dished end=55 - 60mm

UTS of material is 1650 N/mm2

I want to find out the force

Hydrotechnik 5000 Data Logger.

Hi all,

I have a Hydrotechnik 5000 Data Logger that is a great bit of kit but, of late is irritating me as, every time it is switched off, it looses all it's basic settings. When you have set the time and date ten times in a day....... !

I'm guessing that it would have a bios battery on th