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
Category Archives: Aerospace
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
load factor
Greeting all,
A power plant runs at its 0.6 load factor. Does it mean at its 60% capacity out of 100%.
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.
cutting in ss material
why we are not using gas cutting (oxy-acetelyene) process in ss materials
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
aero
how the helicopter lits up
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
Toroidal transformer in high frequency
If we use toroidal transformer in high frequecy, any problem will occur to the transformer or at the customer end they will leads to any problem
"0.50in" or ".50in" in drawings
http://www.jxcad.com.cn/read.php?tid-1075675.html
This forum is dedicated to discussion of all things mechanical. And we are talking about the difference between "0.50in" and ".50in" (if there is ) and some members there are wondering if it is specified in standards or specifications. I know
Toroidal transformer
Can we implement nanotechonolgy in toroidal transformers and CT
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
Insulation on wire
we want to make a less Insulation on copper wire from extruder machine, a material should be stood with high tempreture in submersible pump motor