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Hi there: From the spreadsheet mode, hit ALT+F11 in order to get to the VBA environmnet. Work with modules and create function in order to get custom functions developed. Thanks, Gordan http://engware.i-dentity.com

Hi there: I would suggest that you check with the manufacturer first. Any wrong move could end up as a very expensive mistake. On HHV values basis when looking at the fuel options, there are some difference ... However, fuel consumption for the given air mass flow rate is pretty much the...

Hi there: Here are two URLs that can provide you with some information on basic combustion principles: http://engware.i-dentity.com/engwarew4.pdf http://engware.i-dentity.com/engwarew4.avi Also, you can check out RedVector at http://www.redvector.com for online continuing education courses on...

Hi there: QuickBASIC runs under Vista -- QuickBASIC should take GWBASIC with no problem (just cut and paste)... Thanks, Gordan http://engware.i-dentity.com

Hi there: Here is an online calculator that can help you with compressible flow calclations: http://engware.i-dentity.com/calc5.htm Once you get to the chocked conditions, the downstream flow can become either supersonic or subsonic ... Thanks, Gordan http://engware.i-dentity.com

Hi there: Here are two URLs that you might find useful when dealing with engineering background information and calculations: Coursework Material http://engware.i-dentity.com/courses.htm Online Calculators http://engware.i-dentity.com/calcs.htm Thanks, Gordan http://engware.i-dentity.com

To All: I do apologize for being too fast when submitting my input. As a result, it should have said "deals" instead of "deal" ... Thanks, Gordan http://engware.i-dentity.com

Sheiko: No problem. Thanks, Gordan http://engware.i-dentity.com

Hi there: OK, here is a free MS Excel that deals with general compression calculations: http://engware.i-dentity.com/modeling10.xls Thanks, Gordan http://engware.i-dentity.com

Hi there: Here is a free online calculator that deal with general compression calculations: http://engware.i-dentity.com/calc4.htm Thanks, Gordan http://engware.i-dentity.com

Hi there: Here is a free online calculator that deals with general compression calculations: http://engware.i-dentity.com/calc4.htm Thanks, Gordan http://engware.i-dentity.com

Hi there: One can write as follows: First Law Q – W = ?U Second Law ?S = Q/T Overall, entropy is always >= 0 ... Thanks, Gordan http://engware.i-dentity.com

Hi there: Check out eFunda at: http://www.efunda.com Thanks, Gordan http://engware.i-dentity.com

Hi there: One needs to use the Bernoulli equation. Check out eFunda.com at: http://www.efunda.com/formulae/fluids/bernoulli.cfm Thanks, Gordan http://engware.i-dentity.com

Hi there: Here is a URL for free online calculators dealing with compressible flow components that you might find useful: http://members.aol.com/engware/calc5.htm Thanks, Gordan http://engware.i-dentity.com

MaxPlanck: I need to provide you with a minor update. I did not get the units right for steam and air masses -- it should be in [kg] (I have been working with streams and mass flow rates so that is the reason why I put [kg/s] which is wrong and does not apply to your case. ms - steam...

MaxPlanck: What I suggested, might make sense in the thermodynamics sense. Since steam and air are at 170 [C], in order to solve the problem, one needs to focus on the mixing part of the problem. Masses are known as well as the final temperature. Total pressure is: p = p' + p'' -- Dalton's...

Hi there: Since there is some air present initially -- the vessel volume is larger than the volume required by the water mass -- one can always try to do an ideal textbook problem. Once the initial water mass and volume are known, the rest of the vessel volume can be assumed that is filled...

Hi there: If I am not mistaken, you have heat adition at constant volume. A steam diagram should inicate what the pressure is once the temperature is 170 [C]. Also, the steam diagram for such final state point will indicate what is (phase wise) inside the pressure vessel. Thanks, Gordan...

Hi there: Check out eFunda at http://www.efunda.com where one can find a few online calculators regarding the subject matter. Thanks, Gordan http://engware.i-dentity.com