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October 30, 2007, 08:39 |
units problem
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#1 |
Guest
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hello i am doing diesel combustion problem. i want to know when i use thermal Nox and Mauss soot model in which units i geet my results i.e NOx and SOot values
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October 30, 2007, 10:28 |
Re: units problem
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#2 |
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mass fraction
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October 30, 2007, 12:31 |
Re: units problem
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#3 |
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thanks but can you tell me how to change units in to g/kWh
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October 31, 2007, 08:12 |
Re: units problem
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#4 |
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Get the mass flow of your emissions at the outlet. This should be in your info file. If not use the 'operate' commands to get a value. Divide by the heat input into your system.
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November 1, 2007, 08:58 |
Re: units problem
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#5 |
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q_SOOT (or q_NOx) in [g/(kWh)] if I'm right it's:
SOOT_conc*cyl_mass*60^2*10^6*number_of_cyl/(pme*cyl_max_volume) where pme is in Pa (Star writes in Pa) and cyl_max_vol is in m^3 |
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November 5, 2007, 09:38 |
Re: units problem
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#6 |
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Hi Andrea Can u tell me whats pme in equatoin you gave
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November 5, 2007, 19:59 |
Re: units problem
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#7 |
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mean effective pressure
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November 6, 2007, 03:19 |
Re: units problem
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#8 |
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Thanks
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November 8, 2007, 11:40 |
Re: units problem
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#9 |
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yes, and note that cylinder mass in that formula it's in kg as written out by Star
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