Mathematics, Calculations and Supporting Data

EnviroEngr · **Posted:** Fri Jul 09, 2004 4:56 pm

I'm reading the manual.

{Bozo-isms edited out; EE}

Let me know if I can help or if you need me to test it.

EnviroEngr · **Posted:** Tue Aug 17, 2004 11:14 pm

0th Power = Âº
1st Power = Â¹
Squared = Â²
Cubed = Â³
Degrees = Â°
+/- = Â±
1/4 = Â¼
1/2 = Â½
3/4 = Â¾
divide = Ã·
Function of = Æ’

pup55 · **Joined:** Wed May 26, 2004 12:00 am **Posts:** 4447

http://www.eia.doe.gov/neic/quickfacts/quickoil.html

EnviroEngr · **Posted:** Tue Mar 01, 2005 5:09 pm

Other conversion data: http://www.peakoil.com/fortopic4689.html

johnmarkos · **Posted:** Tue Mar 01, 2005 5:19 pm

SI prefixes:

http://en.wikipedia.org/wiki/SI_prefix

EnviroEngr · **Posted:** Tue Mar 01, 2005 5:30 pm

Engineering Equations:

Thermodynamics, enthalpy

h = enthalpy, Btu/lb
P = absolute pressure, psia
U = internal energy, Btu/lb
v = specific volume, ft3/lb

h = U + 0.185 P v

Thermodynamics, isobaric process: entropy change

Cp = specific heat, constant pressure, Btu/lb/Â°F
T = absolute temperature, Â°R
s = entropy, Btu/lb/Â°R

s2 - s1 = Cp*ln(T2/T1)

Thermodynamics, polytropic process, entropy change

Cv = specific heat at constant volume, Btu/lb/Â°F
k = adiabatic exponent for gas
n = polytropic constant for gas
s = entropy, Btu/lb/Â°R
T = absolute temperature, Â°R

s2 - s1 = Cv*((n-k)/(n-1))*ln(T2/T1)

nero · **Posted:** Mon Mar 07, 2005 11:12 pm

How do you do all these fancy greek symbols?

EnviroEngr · **Posted:** Tue Mar 08, 2005 9:32 am

They're imported across DDE from COREL WordPerfect 8.0
I can PM them to you if you'd like to use them.

Sololeum · **Posted:** Wed Mar 09, 2005 4:28 pm

When looking at the drastic figures of depletion rates for oil wells in over 600 metres of sea water - I began to wonder when people talk of percentage depletion, ie. 2.5% for the USA since 1973 etc. is it based on the peak flow rate or the annual flow rate -

Based on Peak Flow would give a steeper decline that that based on annual flows.

Can anyone help.

bodigami · **Joined:** Wed Jul 26, 2006 12:00 am **Posts:** 2330

why is this a sticky? and why not change the title?

Aaron · **Posted:** Sun May 03, 2009 6:43 pm

Whoa...

Posted: Wed Mar 09, 2005 6:28 pm... last response

bodigami · **Joined:** Wed Jul 26, 2006 12:00 am **Posts:** 2330

Aaron wrote:

Whoa...

Posted: Wed Mar 09, 2005 6:28 pm... last response

yeah, it has being a sticky for years with no more replies.

Mathematics, Calculations and Supporting Data

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