equations
equations
(OP)
im just starting to become a Pump engineer and i need to know Pounds per square inch (PSI), BAR, Mbar, Kilo Pascal (Kpa), Pascal (Pa) and Meters head (M) – Find out the conversions to make one equal the other. can anyone help me with this





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Heck, some diaries will give some of these.
KENAT, probably the least qualified checker you'll ever meet...
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I had a really good one back in the UK, I've never found it again. The one I found now on the web isn't as good.
KENAT, probably the least qualified checker you'll ever meet...
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Works for currency too.
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It's a free download from
http://joshmadison.com/software/convert/
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KENAT, probably the least qualified checker you'll ever meet...
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Liters a second (l/s), Meters cubed an hour (M3/hr), gallons per minute imperial, gallons per minute US
can someone help with this please i got a rough understanding but still not quite sure thanks again
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is good
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All that is required is that you enter appropriate units when something is defined, and that you specify the required units when retreiving information.
For example:
CODE
REM -------
pressure = 760 * mm * of_mercury * on_earth
PRINT "Pressure is " pressure/atm " atmospheres"
PRINT "Pressure is " pressure/bar " bar"
PRINT "Pressure is " pressure/millibar " millibars"
PRINT "Pressure is " pressure/psi " psi"
PRINT "Pressure is " pressure/(foot*of_water*on_earth) " feet of water"
flow = 10 * litre/s
PRINT "Flow is " flow / (gallon_US/minute) " US gallons per minute"
In order to do that, you need to understand and be able to define the units you are working with, eg
CODE
REM http://www.cix.co.uk/~rrussell/products/bbcwin/bbcwdemo.exe
*FLOAT 64 : REM Precision for real number arithmetic
REM Define Units
REM ------------
kg=1 : m=1 : s=1
deci=1/10 : centi=1/100 : thousand=1000 : milli=1/thousand : kilo=thousand : mega=thousand*kilo : giga=thousand*mega
mm=m/thousand : dm=deci*m : cm = centi*m : km = kilo*m
cm2 = cm*cm : m2 = m*m
m3 = m*m*m : litre = dm*dm*dm : cm3=cm*cm*cm
gram=kg/thousand
minute=60*s : hour=60*minute : day=24*hour
inch=2.54*cm : foot=12*inch : yard=3*foot : chain=22*yard : furlong=10*chain : mile=8*furlong
inch2=inch*inch
inch3 = inch*inch*inch
mph = mile/hour
kmh = km/hour
N=kg*m/s/s : Pascal=N/m2
bar = 100*kilo*Pascal : millibar = milli*bar
atm=101325*Pascal
lb = 0.45359237 * kg : REM http://en.wikipedia.org/wiki/Pound_%28mass%29
REM gravity
g = 9.80665 * m/s/s : REM http://en.wikipedia.org/wiki/Standard_gravity
on_earth = g
on_moon = 0.1654 * g : REM http://en.wikipedia.org/wiki/Moon
REM density
of_water = 1000*kg/m3
of_mercury = 13.534 * gram/cm3 : REM http://en.wikipedia.org/wiki/Mercury_%28element%29
lbf = lb * g
psi = lbf / inch2
gallon_US = 231 * inch3
gallon_UK = 10*lb / of_water : REM Volume of 10 pounds of water
Then, if you want to measure pressure in fully fueled jumbo jets per acre, or measure flow in cubic light years per millenium, it isn't a problem.
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- Steve
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An object is in freefall for 3 micro-minutes. What is its speed in furlongs per fortnight?
displays
Once again, you need to understand your units but complicated units are usually defined in terms of simpler ones, eg miles per hour, cubic feet per minute, pounds per square inch, etc.
This time I have omitted plenty of definitions, but it should be clear that once an effort has been made to understand a new unit it can easily be used.
Nowhere above did we actually worry our own little heads about 'what is the conversion constant between speeds in
micro-minute metres per square second , and furlongs per fortnight ?' (Luckily!)