<html><head><style> body {height: 100%; color:#000000; font-size:12pt; font-family:arial,helvetica,sans-serif;}</style></head><body><div>Hi Brian,<br></div><div><br data-mce-bogus="1"></div><div>Tomorrow first thing in the morning we will take a closer look at pressure<br data-mce-bogus="1"></div><div>dynamics at flows around 6.5 as George has recommended. Correspondingly<br data-mce-bogus="1"></div><div>we will consider possibility of changing high pressure alarm set point.<br data-mce-bogus="1"></div><div>We can not do it today since the hall is closed.<br data-mce-bogus="1"></div><div>Thank you very much.<br data-mce-bogus="1"></div><div>Best regards,<br data-mce-bogus="1"></div><div> Youri<br data-mce-bogus="1"></div><div><br></div><div>----- Original Message -----<br>From: Brian Eng <beng@jlab.org><br>To: dsg-htcc <dsg-htcc@jlab.org><br>Sent: Mon, 23 Jan 2017 16:43:18 -0500 (EST)<br>Subject: Re: [Dsg-htcc] HTCC gas flow rate for KPP<br></div><div><br></div><div>Nick called and requested Marc lower the flow rate to 2 slm, which as been done.<br></div><div><br></div><div>However, it will need to be raised at some point if the detector is to be ready in time for the KPP run.<br></div><div><br></div><div>> On Jan 23, 2017, at 4:33 PM, Brian Eng <beng@jlab.org> wrote:<br>> <br>> Based on George's recommendation I had Marc set the flow to 6.5 slm remotely.<br>> <br>>> On Jan 23, 2017, at 2:53 PM, George Jacobs <jacobsg@jlab.org> wrote:<br>>> <br>>> Hi Youri,<br>>> <br>>> I recommend you increase your CO2 flow rate. The current rate of 2 slm is too low. I recommend a flow of 6.5 slm until the KPP run is completed.<br>>> <br>>> The calculated flow rates for the HTCC are as follows;<br>>> Purge Flow - 20 slm - 1.5 volume exchanges per day- the detector volume will be purged in 3.4 days<br>>> Running Flow - 6.5 slm - 0.5 volume exchanges per day <br>>> Reduced Flow - 3.25 slm - 0.25 volume exchanges per day<br>>> <br>>> George<br></div><div><br></div><div>_______________________________________________<br>Dsg-htcc mailing list<br>Dsg-htcc@jlab.org<br>https://mailman.jlab.org/mailman/listinfo/dsg-htcc<br></div><div><br></div></body></html>