<<Mathematics, Calculations and Supporting Data>>

EnviroEngr · Posted: Fri Jul 09, 2004 5:56 pm Post subject: Boning up

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.
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EnviroEngr · Posted: Wed Aug 18, 2004 12:14 am Post subject: More Symbols

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’
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| Whose reality is this anyway!? |
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(-------< Temet Nosce >-------)
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pup55 · Expert Joined: May 26, 2004 Posts: 3692

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

EnviroEngr · Posted: Tue Mar 01, 2005 6:09 pm Post subject: Conversion Tool

Other conversion data: http://www.peakoil.com/fortopic4689.html
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| Whose reality is this anyway!? |
--------------------------------
(-------< Temet Nosce >-------)
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johnmarkos · Posted: Tue Mar 01, 2005 6:19 pm Post subject:

SI prefixes:

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

EnviroEngr · Posted: Tue Mar 01, 2005 6:30 pm Post subject: Equations

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)
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| Whose reality is this anyway!? |
--------------------------------
(-------< Temet Nosce >-------)
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nero · Posted: Tue Mar 08, 2005 12:12 am Post subject:

How do you do all these fancy greek symbols?

EnviroEngr · Posted: Tue Mar 08, 2005 10:32 am Post subject: Greek

They're imported across DDE from COREL WordPerfect 8.0
I can PM them to you if you'd like to use them.
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| Whose reality is this anyway!? |
--------------------------------
(-------< Temet Nosce >-------)
____________________________

Sololeum · Posted: Wed Mar 09, 2005 5:28 pm Post subject: depletion percentages

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.