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This is a multi-part message in MIME format. ------=_NextPart_000_002D_01C09C26.63D0EA20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable that's what I thought. And I even got a good grade on that physics = test. Yeah...thermal conductivity is primary. However...both characteristics = are periodic and based on the same structural components. =20 CB =20 ----- Original Message -----=20 From: moorea(uol)=20 To: techdiver@aquanaut.com=20 Sent: Wednesday, February 21, 2001 7:34 AM 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=B4s 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=B4s 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 =3D m c (det t) Q=3D total heat exchange m=3D mass c=3D specific heat delta t=3Dtime 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=20 Marcelo Moorea ------=_NextPart_000_002D_01C09C26.63D0EA20 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 http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 5.50.4134.600" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2>that's what I thought. And I even = got a good=20 grade on that physics test.</FONT></DIV> <DIV><FONT face=3DArial size=3D2>Yeah...thermal conductivity = is primary. =20 However...both characteristics are periodic and based on the same = structural=20 components. </FONT></DIV> <DIV><FONT face=3DArial size=3D2>CB </FONT></DIV> <BLOCKQUOTE dir=3Dltr=20 style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV> <DIV=20 style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B>=20 <A title=3Dmoorea@uo*.co*.br* = href=3D"mailto:moorea@uo*.co*.br*">moorea(uol)</A>=20 </DIV> <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A = title=3Dtechdiver@aquanaut.com=20 href=3D"mailto:techdiver@aquanaut.com">techdiver@aquanaut.com</A> = </DIV> <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Wednesday, February 21, = 2001 7:34=20 AM</DIV> <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> More about breathing = Helium=20 thermal loss</DIV> <DIV><BR></DIV> <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_002D_01C09C26.63D0EA20-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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