<DIV>Recently,I read the news about the zero air cooler,<SPAN style="WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; DISPLAY: inline !important; FONT: 14px/26px roboto, Verdana, Helvetica, Arial, sans-serif; WHITE-SPACE: normal; FLOAT: none; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px">which is made with re-purposed plastic bottles.And the new claims that it helps reduce indoor temperature by 5 degrees centigrade.</SPAN><SPAN style="WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; DISPLAY: inline !important; FONT: 14px/26px roboto, Verdana, Helvetica, Arial, sans-serif; WHITE-SPACE: normal; FLOAT: none; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px"></SPAN></DIV>
<DIV><SPAN style="WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; DISPLAY: inline !important; FONT: 14px/26px roboto, Verdana, Helvetica, Arial, sans-serif; WHITE-SPACE: normal; FLOAT: none; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px">The making process is shown as following:</SPAN></DIV>
<DIV><SPAN style="WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; DISPLAY: inline !important; FONT: 14px/26px roboto, Verdana, Helvetica, Arial, sans-serif; WHITE-SPACE: normal; FLOAT: none; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px"><IMG src="cid:65A715F5@C59AF836.D8488857.jpg" filesize="157349" naturalW="571" naturalH="466"></SPAN></DIV>
<DIV><SPAN style="WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; DISPLAY: inline !important; FONT: 14px/26px roboto, Verdana, Helvetica, Arial, sans-serif; WHITE-SPACE: normal; FLOAT: none; COLOR: rgb(0,0,0); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px"><IMG src="cid:2477A2AF@C59AF836.D8488857.jpg" filesize="109500" naturalW="592" naturalH="359"></SPAN></DIV>
<DIV>I dout that very much.</DIV>
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<DIV>the Joule-Thomson Coefficient for air (mostly nitrogen) at 300K (27¡ãC/80¡ãF) is about 0.36K/bar. This means that at 300K a 1bar change in pressure equates to a 0.22K. The change in pressure required to get the 5¡ãC (5K) reduction would therefore be:<BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(252,252,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; FONT: 13px/18px verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; COLOR: rgb(20,20,20); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px"><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(252,252,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; FONT: 13px/18px verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; COLOR: rgb(20,20,20); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(252,252,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; DISPLAY: inline !important; FONT: 13px/18px verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; FLOAT: none; COLOR: rgb(20,20,20); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px">5 / 0.22 = 22.7bar</SPAN></DIV>
<DIV><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(252,252,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; DISPLAY: inline !important; FONT: 13px/18px verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; FLOAT: none; COLOR: rgb(20,20,20); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px"></SPAN> </DIV>
<DIV><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(252,252,255); TEXT-INDENT: 0px; LETTER-SPACING: normal; DISPLAY: inline !important; FONT: 13px/18px verdana, arial, helvetica, sans-serif; WHITE-SPACE: normal; FLOAT: none; COLOR: rgb(20,20,20); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px"><IMG style="WIDTH: 684px; HEIGHT: 440px" src="cid:142A9B79@C59AF836.D8488857.jpg" filesize="106626" naturalW="740" naturalH="477" modifysize="92%" diffpixels="22px" scalingmode="zoom"></SPAN></DIV>
<DIV>So I think it is impossible the temperature drop will be up to 5 degrees centigrade after the air through the bottle.</DIV>
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<DIV>What do you think?</DIV>
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<DIV><FONT color=#3366ff size=2><STRONG>Yongqing Zhao</STRONG></FONT></DIV>
<DIV><FONT size=2><STRONG><FONT color=#006600>Changsha Green Building & Energy Saving Technology CO.,LTD<BR></FONT></STRONG><FONT color=#3366ff>NO.438,Shaoshan Road,Changsha,Hunan,China<BR>Telephone:13574805636</FONT></FONT></DIV>
<DIV><FONT color=#3366ff size=2>Email:zhaoyongqing1987@126.com</FONT></DIV>
<DIV><FONT size=2> <SPAN>503271081@qq.com</SPAN></FONT> </DIV></DIV></DIV></DIV></DIV>
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