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This is a multi-part message in MIME format. ------=_NextPart_000_0019_01C09C20.84CEB640 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Marcelo, Do a search in the archive will get you the answer on these questions most of the time. Then if you still have unanswered questions, ask here... For example, http://www.aquanaut.com/bin/mlist/aquanaut/techdiver/display?33683,from -Phi -----Original Message----- From: moorea(uol) [mailto:moorea@uo*.co*.br*] Sent: Wednesday, February 21, 2001 1:34 PM To: techdiver@aquanaut.com Subject: More about breathing Helium thermal loss First of all i wanna thank you people, this is helping so much. But maybe i did not made myself clear. I was talking about breathing gas, there�s no question about drysuit inflation, but it stills (not for me at all) about gas breathing. Many people wrote that the thermal conductivity is related with gas density (breathing again). Another one wrote what i think it�s the truth, the thermal conduction is related with the thermal properties of gas more than the density (i agree that density is a factor, but not the main one). when i said about Q = m c (det t) Q= total heat exchange m= mass c= specific heat delta t=time variation Still the question. And more, the biggest heat loss is really on the water vapour ? if so the heat exchanges are not the biggest concern ? thanks again Marcelo Moorea ------=_NextPart_000_0019_01C09C20.84CEB640 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META content=3D"text/html; charset=3Diso-8859-1" = http-equiv=3DContent-Type> <META content=3D"MSHTML 5.00.2919.6307" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20 class=3D590280515-21022001>Marcelo,</SPAN></FONT></DIV> <DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20 class=3D590280515-21022001></SPAN></FONT> </DIV> <DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN = class=3D590280515-21022001>Do a=20 search in the archive will get you the answer on these questions most of = the=20 time. Then if you still have unanswered questions, ask=20 here...</SPAN></FONT></DIV> <DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20 class=3D590280515-21022001></SPAN></FONT> </DIV> <DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN = class=3D590280515-21022001>For=20 example, <A=20 href=3D"http://www.aquanaut.com/bin/mlist/aquanaut/techdiver/display?3368= 3,from">http://www.aquanaut.com/bin/mlist/aquanaut/techdiver/display?3368= 3,from</A></SPAN></FONT></DIV> <DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20 class=3D590280515-21022001></SPAN></FONT> </DIV> <DIV><FONT color=3D#0000ff face=3DArial size=3D2><SPAN=20 class=3D590280515-21022001>-Phi</SPAN></FONT></DIV> <BLOCKQUOTE style=3D"MARGIN-RIGHT: 0px"> <DIV align=3Dleft class=3DOutlookMessageHeader dir=3Dltr><FONT = face=3DTahoma=20 size=3D2>-----Original Message-----<BR><B>From:</B> moorea(uol)=20 [mailto:moorea@uo*.co*.br*]<BR><B>Sent:</B> Wednesday, February 21, = 2001 1:34=20 PM<BR><B>To:</B> techdiver@aquanaut.com<BR><B>Subject:</B> More about=20 breathing Helium thermal loss<BR><BR></DIV></FONT> <DIV><FONT face=3DArial size=3D2>First of all i wanna thank you = people, this is=20 helping so much.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>But maybe i did not made myself = clear. I was=20 talking about breathing gas, there=B4s no question about drysuit = inflation, but=20 it stills (not for me at all) about gas breathing.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Many people wrote that the thermal = conductivity=20 is related with gas density (breathing again).</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Another one wrote what i think it=B4s = the truth,=20 the thermal conduction is related with the thermal properties of gas = more than=20 the density (i agree that density is a factor, but not the main=20 one).</FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>when i said about Q =3D m c (det = t)</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Q=3D total heat exchange</FONT></DIV> <DIV><FONT face=3DArial size=3D2>m=3D mass</FONT></DIV> <DIV><FONT face=3DArial size=3D2>c=3D specific heat</FONT></DIV> <DIV><FONT face=3DArial size=3D2>delta t=3Dtime variation</FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>Still the question.</FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>And more, the biggest heat loss is = really on the=20 water vapour ? if so the heat exchanges are not the biggest concern=20 ?</FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>thanks again </FONT></DIV> <DIV> </DIV> <DIV><FONT face=3DArial size=3D2>Marcelo=20 Moorea</FONT></DIV></BLOCKQUOTE></BODY></HTML> ------=_NextPart_000_0019_01C09C20.84CEB640-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. 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