<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<meta name=Generator content="Microsoft Word 11 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]--><o:SmartTagType
namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="metricconverter"/>
<o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags"
name="PersonName"/>
<!--[if !mso]>
<style>
st1\:*{behavior:url(#default#ieooui) }
</style>
<![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Georgia;
panose-1:2 4 5 2 5 4 5 2 3 3;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:blue;
text-decoration:underline;}
span.E-postmall17
{mso-style-type:personal-reply;
font-family:Arial;
color:navy;}
@page Section1
{size:595.3pt 841.9pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.Section1
{page:Section1;}
-->
</style>
</head>
<body lang=SV link=blue vlink=blue>
<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>For rough calculations it
is practical to know that 1 NTP cubicmeter of natural gas has a practical heat
content (lower heating value) very close to 10 kWh. On your natural gas bill
the volume of gas is mostprobably given at NTP (normal temperature and pressure).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Björn Dahlroth<o:p></o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=3 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>Från:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
digestion-bounces@lists.bioenergylists.org
[mailto:digestion-bounces@lists.bioenergylists.org] <b><span style='font-weight:
bold'>För </span></b>Reuben Deumling<br>
<b><span style='font-weight:bold'>Skickat:</span></b> den 29 september 2010
17:03<br>
<b><span style='font-weight:bold'>Till:</span></b> <st1:PersonName w:st="on">david@h4c.org</st1:PersonName>;
For Discussion of Anaerobic Digestion<br>
<b><span style='font-weight:bold'>Kopia:</span></b> Alexander Eaton<br>
<b><span style='font-weight:bold'>Ämne:</span></b> [Digestion] daily avg volume
of fuel for cooking - conversions?</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Tue, Sep 28, 2010 at 11:08 PM, David <<a
href="mailto:david@h4c.org">david@h4c.org</a>> wrote:<o:p></o:p></span></font></p>
<div bgcolor="#ffffff" text="#000000">
<p class=MsoNormal><font size=3 face=Georgia><span style='font-size:12.0pt;
font-family:Georgia'>....</span></font> then we come into the range often
quoted for cooking fuel needs for a small family: 0.75 cu m/day.)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
I'm curious if someone here could help me compare this figure with, for
instance, my average daily consumption of natural gas for cooking. I know how
to convert cubic feet to cubic meters, but have forgotten the different energy
densities and am unsure if pressure is an important parameter here. <br>
<br>
We average 11.4 cubic feet* per day of natural gas for our cooking needs.
Anyone care to weigh in on how this compares to <st1:metricconverter
ProductID="0.75 m3" w:st="on">0.75 m3</st1:metricconverter> of biomethane?<br>
<br>
Thanks.<br>
<br>
Reuben Deumling<br>
<br>
* I calculate 0.323m3 or about 40% of the 0.75m3 on a purely volumetric basis. <o:p></o:p></span></font></p>
</div>
</div>
</div>
</body>
</html>