
<div><br></div><div><img src="cid:2B0BF902@507BE126.B58CA851"></div><div>I have a project using ice-storage ,and the cold tank setting as above.</div><div><br></div><div>the charge loop</div><div><img src="cid:2D06FBF9@507BE126.B58CA851"></div><div><br></div><div>the discharge loop</div><div><img src="cid:320AF901@507BE126.B58CA851"></div><div>In<span style="line-height: 1.5;"> hourly report my charge load and discharge load is normal</span></div><div><img src="cid:2B0DFE02@507BE126.B58CA851"></div><div><br></div><div><br></div><div style="font-size: 12px;font-family: Arial Narrow;padding:2px 0 2px 0;">------------------ 原始邮件 ------------------</div><div style="font-size: 12px;background:#efefef;padding:8px;"><div><b>发件人:</b> "WangWendy"<silver_mirror@msn.com>; </div><div><b>发送时间:</b> 2013年5月31日(星期五) 晚上7:09</div><div><b>收件人:</b> "Jenny Zhang"<jenny.zhang@arup.com>; "冷面寒枪"<503271081@qq.com>; "'Equest-users@lists.onebuilding.org'"<equest-users@lists.onebuilding.org>; "'yjhuang@whiteboxtechnologies.com'"<yjhuang@whiteboxtechnologies.com>; </div><div><b>主题:</b>  RE: [EquesdC11c2Vyc10gu9g 复： RE: 回复：[Equest-us ers ] Ther mal  storage tank do esn't  wor k belo w zero degree </div></div><div><br></div><style><!--

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<div dir="ltr">Maybe I didn't elaborate this problem clearly enough. Here i'm repeating: the tank does't work below 0 degree no matter what charge/discharge rate i assign to it. I don't know if other guy've met the same problem too?  <br>


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From: <a href="mailto:jenny.zhang@arup.com" target="_blank">jenny.zhang@<wbr>arup.com</a><br>To: <a href="mailto:silver_mirror@msn.com" target="_blank">silver_mirro<wbr>r@msn.com</a>; <a href="mailto:503271081@qq.com" target="_blank">503271081@qq<wbr>.com</a>; <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users<wbr>@lists.onebu<wbr>ilding.org</a>; <a href="mailto:yjhuang@whiteboxtechnologies.com" target="_blank">yjhuang@whit<wbr>eboxtechnolo<wbr>gies.com</a><br>Subject: RE: [Equest-users] 回复： RE: 回复：[Equest-users ] Thermal storage tank doesn't work below zero degree<br>Date: Fri, 31 May 2013 10:34:11 +0000<br><br><br>

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<p class="ecxMsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">I met the same problem. Maybe it is a bug of equest. If my memory is right, I think eQuest before 3.63 could do ice storage correctly.</span></p>

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<p class="ecxMsoNormal"><b><span style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt" lang="EN-US">From:</span></b><span style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt" lang="EN-US"> <a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users<wbr>-bounces@lis<wbr>ts.onebuildi<wbr>ng.org</a> [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users<wbr>-bounces@lis<wbr>ts.onebuildi<wbr>ng.org</a>] <b>On Behalf Of </b>WangWendy<br><b>Sent:</b> 2013</span><span style="FONT-SIZE: 10pt" lang="ZH-CN">年</span><span style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt" lang="EN-US">5</span><span style="FONT-SIZE: 10pt" lang="ZH-CN">月</span><span style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt" lang="EN-US">31</span><span style="FONT-SIZE: 10pt" lang="ZH-CN">日</span><span style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt" lang="EN-US"> 18:14<br><b>To:</b> </span><span style="FONT-SIZE: 10pt" lang="ZH-CN">冷面寒枪</span><span style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt" lang="EN-US">; <a href="mailto:Equest-users@lists.onebuilding.org" target="_blank">Equest-users<wbr>@lists.onebu<wbr>ilding.org</a><br><b>Subject:</b> Re: [Equest-users] </span><span style="FONT-SIZE: 10pt" lang="ZH-CN">回复：</span><span style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt" lang="EN-US"> RE: </span><span style="FONT-SIZE: 10pt" lang="ZH-CN">回复：</span><span style="FONT-FAMILY: 'Tahoma','sans-serif'; FONT-SIZE: 10pt" lang="EN-US">[Equest-users ] Thermal storage tank doesn't work belo w zero degree</span></p></div></div>

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<p class="ecxMsoNormal"><span style="FONT-FAMILY: '微软雅黑','sans-serif'">enclosed are the screenshot. You may see both the water side system and the propertites panel of storage tank. Charge temperature now is 32 F( 0 C) due to the reason i mentioned. Another two attachement are the screenshot of charge loop and discharge loop.<br><br> </span></p>

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<p class="ecxMsoNormal"><span style="FONT-FAMILY: '微软雅黑','sans-serif'">From: <a href="mailto:503271081@qq.com" target="_blank">503271081@qq.com</a><br>To: <a href="mailto:silver_mirror@msn.com" target="_blank">silver_mirror@msn.com</a>; <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>Subject: <span lang="ZH-CN">回复：</span> RE: <span lang="ZH-CN">回复：</span>[Equest-users ] Thermal storage tank doesn't work belo w zero degree<br>Date: Fri, 31 May 2013 17:59:53 +0800<br><br>can you provide the water side system screenshot in eQUEST or attach your inp and pd2 file in Email. </span></p>

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<p style="BACKGROUND: #efefef" class="ecxMsoNormal"><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt" lang="ZH-CN">发件人</span></b><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt">:</span></b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt"> "WangWendy"; </span></p></div>

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<p style="BACKGROUND: #efefef" class="ecxMsoNormal"><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt" lang="ZH-CN">发送时间</span></b><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt">:</span></b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt"> 2013<span lang="ZH-CN">年</span>5<span lang="ZH-CN">月</span>31<span lang="ZH-CN">日</span>(<span lang="ZH-CN">星期五</span>) <span lang="ZH-CN">下午</span>5:54</span></p></div>

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<p style="BACKGROUND: #efefef" class="ecxMsoNormal"><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt" lang="ZH-CN">收件人</span></b><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt">:</span></b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt"> "<span lang="ZH-CN">冷面寒枪</span>"; "<a href="mailto:Equest-users@lists.onebuilding.org" target="_blank">Equest-users@lists.onebuilding.org</a>"; </span></p></div>

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<p style="BACKGROUND: #efefef" class="ecxMsoNormal"><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt" lang="ZH-CN">主题</span></b><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt">:</span></b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt"> RE: <span lang="ZH-CN">回复：</span>[Equest-users ] Thermal storage tank doesn't work belo w zero degree</span></p></div></div>

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<p class="ecxMsoNormal"><span style="FONT-FAMILY: '微软雅黑','sans-serif'">Of course I've set the maximum rate per design value. My problem here is the actual rate doesn't equal to the supposed value. As i mentioned below, the actual discharge/charge load/rate is zero when the entering/leaving temperature is below 0 degree. I don't think the problem comes from wrong setting of discharge/charge rate.<br><br>Any other possibility besides the charge/discharge rate?<br><br>Thank you all the same.<br><br></span></p>

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<p class="ecxMsoNormal"><span style="FONT-FAMILY: '微软雅黑','sans-serif'"><br>From: <a href="mailto:503271081@qq.com" target="_blank">503271081@qq.com</a><br>To: <a href="mailto:silver_mirror@msn.com" target="_blank">silver_mirror@msn.com</a>; <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br>Subject: <span lang="ZH-CN">回复：</span>[Equest-users] Thermal storage tank doesn't work below zero degree<br>Date: Fri, 31 May 2013 17:32:17 +0800<br><br></span></p>

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<p class="ecxMsoNormal"><span style="FONT-FAMILY: '微软雅黑','sans-serif'">you must Specifies the maximum rateat which the storage component can discharge and discharge <span lang="ZH-CN">。</span></span></p></div>

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<p style="BACKGROUND: #efefef" class="ecxMsoNormal"><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt" lang="ZH-CN">发件人</span></b><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt">:</span></b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt"> "WangWendy"; </span></p></div>

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<p style="BACKGROUND: #efefef" class="ecxMsoNormal"><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt" lang="ZH-CN">发送时间</span></b><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt">:</span></b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt"> 2013<span lang="ZH-CN">年</span>5<span lang="ZH-CN">月</span>31<span lang="ZH-CN">日</span>(<span lang="ZH-CN">星期五</span>) <span lang="ZH-CN">下午</span>2:55</span></p></div>

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<p style="BACKGROUND: #efefef" class="ecxMsoNormal"><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt" lang="ZH-CN">收件人</span></b><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt">:</span></b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt"> "<a href="mailto:Equest-users@lists.onebuilding.org" target="_blank">Equest-users@lists.onebuilding.org</a>"; </span></p></div>

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<p style="BACKGROUND: #efefef" class="ecxMsoNormal"><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt" lang="ZH-CN">主题</span></b><b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt">:</span></b><span style="FONT-FAMILY: '微软雅黑','sans-serif'; FONT-SIZE: 9pt"> [Equest-users] Thermal storage tank doesn't work below zero degree</span></p></div></div>

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<p class="ecxMsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Hello everyone</span><span style="FONT-FAMILY: '微软雅黑','sans-serif'"></span></p>

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<p class="ecxMsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">This problem came across when I was modelling an ice-storage system. Hourly report said the charge and discharge load are both zero, which means the tank doesn’t work under the setting condition. The supposed entering temperature of the tank is -6</span><span style="COLOR: #1f497d; FONT-SIZE: 11pt" lang="ZH-CN">℃</span><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"> and is leaving at -3</span><span style="COLOR: #1f497d; FONT-SIZE: 11pt" lang="ZH-CN">℃</span><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">. Freeze temp is below -10</span><span style="COLOR: #1f497d; FONT-SIZE: 11pt" lang="ZH-CN">℃</span><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">. In order to run the simulation, I have to raise the charge/discharge temperature as well as the loop temperature of charge loop up above 0</span><span style="COLOR: #1f497d; FONT-SIZE: 11pt" lang="ZH-CN">℃</span><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">. When the charge temperature is above or  equal to zero, the tank does work. However it changes the performance of double duty chillers under ice-making mode, since the curve of chiller is different with different leaving temperature, leading to a bigger assigned load of double duty chiller than the max charge load and less accurate results.</span><span style="FONT-FAMILY: '微软雅黑','sans-serif'"></span></p>

<p class="ecxMsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"> </span><span style="FONT-FAMILY: '微软雅黑','sans-serif'"></span></p>

<p class="ecxMsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Does anyone have any thoughts how to solve this problem? Making storage tank work below 0</span><span style="COLOR: #1f497d; FONT-SIZE: 11pt" lang="ZH-CN">℃</span><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"> at setting temperature? Or is this the limit of eQuest software yet to be solved?</span><span style="FONT-FAMILY: '微软雅黑','sans-serif'"></span></p>

<p class="ecxMsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt"> </span><span style="FONT-FAMILY: '微软雅黑','sans-serif'"></span></p>

<p class="ecxMsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Many thanks</span><span style="FONT-FAMILY: '微软雅黑','sans-serif'"></span></p>

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<p class="ecxMsoNormal"><span style="FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d; FONT-SIZE: 11pt">Wendy</span><span style="FONT-FAMILY: '微软雅黑','sans-serif'"></span></p></div></div></div></div></div></div>

____________________________________________________________<br>Electronic mail messages entering and leaving Arup  business<br>systems are scanned for acceptability of content and viruses<br></div>                                       </div>