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<DIV id=idOWAReplyText57589 dir=ltr>
<DIV dir=ltr>I realized that the weather data provided by TRNSYS is not consistent. </DIV></DIV>
<DIV>
<DIV class=Section1>
<P class=MsoNormal> </P>
<P class=MsoNormal>The following data is retrieved at 1 hr, 0.5hr and 0.25 hrs interval (or timestep) at the same time.</P>
<P class=MsoNormal> </P>
<TABLE class=MsoNormalTable style="MARGIN-LEFT: -0.75pt; WIDTH: 388.1pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=517 border=0>
<TBODY>
<TR style="HEIGHT: 15pt">
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal><B>TIME </B></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 50pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=67 colSpan=2>
<P class=MsoNormal><B>Temp_A </B></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal><B>RH_A </B></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 49.05pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=65 colSpan=2>
<P class=MsoNormal><B>Temp_B </B></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal><B>RH_B </B></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 49.05pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=65 colSpan=2>
<P class=MsoNormal><B>Temp_C </B></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal><B>RH_C </B></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=top width=64 colSpan=2>
<P class=MsoNormal><B>Interval</B></P></TD></TR>
<TR style="HEIGHT: 15pt">
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal>HOURS </P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 50pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=67 colSpan=2>
<P class=MsoNormal>Deg C </P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal>% </P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 49.05pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=65 colSpan=2>
<P class=MsoNormal>Deg C </P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal>% </P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 49.05pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=65 colSpan=2>
<P class=MsoNormal>Deg C </P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal>% </P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=top width=64 colSpan=2>
<P class=MsoNormal>hr</P></TD></TR>
<TR style="HEIGHT: 15pt">
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 50pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=67 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">5000.00</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">26.70</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">71.71</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">26.30</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">73.43</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">27.05</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">70.26</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=top width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">0.25</SPAN></P></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" width=3>
<P class=MsoNormal> </P></TD></TR>
<TR style="HEIGHT: 15pt">
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 50pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=67 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">5000.00</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">30.35</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">57.88</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">29.72</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">60.00</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">30.62</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">57.00</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=top width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">0.5</SPAN></P></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" width=3>
<P class=MsoNormal> </P></TD></TR>
<TR style="HEIGHT: 15pt">
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 50pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=67 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">5000.00</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">30.44</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">57.26</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">29.80</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">59.41</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">30.60</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=bottom noWrap width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">56.73</SPAN></P></TD>
<TD style="PADDING-RIGHT: 5.4pt; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0in; WIDTH: 48pt; PADDING-TOP: 0in; HEIGHT: 15pt" vAlign=top width=64 colSpan=2>
<P class=MsoNormal style="TEXT-ALIGN: right" align=right><SPAN style="COLOR: black">1.0</SPAN></P></TD>
<TD style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 0in; BORDER-BOTTOM: medium none" width=3>
<P class=MsoNormal> </P></TD></TR>
<TR height=0>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=64></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=3></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=64></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=64></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=64></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=1></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=63></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=1></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=63></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=3></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=61></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=3></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=61></TD>
<TD style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none" width=3></TD></TR></TBODY></TABLE>
<P class=MsoNormal> </P>
<P class=MsoNormal>My question is:</P>
<P class=MsoNormal>Which data (i.e. timestep) is more reliable?</P>
<P class=MsoNormal> </P>
<P class=MsoNormal>Regards.</P>
<P class=MsoNormal> </P>
<P class=MsoNormal>Nguan Teck</P>
<P class=MsoNormal> </P></DIV></DIV></BODY></HTML>