BTU for typical microscope question

[mcammer]

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We are proposing a new lab and the designers would like us to provide cooling needs.

For a laser scanning confocal with one gas (KrAr) and 3 or 4 diode lasers , standard illumination for fluorescence, and an environmental chamber, does anyone have an estimate of BTUs?

Thank you!!



=========================================================================
Michael Cammer, Microscopy Core & Skirball Institute, NYU Langone Medical Center
         Cell:  914-309-3270     Office: Skirball 2nd Floor main office, back right
            http://ocs.med.nyu.edu/microscopy & http://microscopynotes.com/


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[Zdenek Svindrych-2]

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Hi Michael,
the electrical power drawn equals to the heat produced.


Our Zeiss confocal consumes about 1.3 kW with the Ar-ion at low power (UPS
efficiency included), without the lamp (additional 0.2 kW; 0 kW for LED, as
those are mostly off on a confocal). With chamber (small on stage are few
Watts, large could be few hundred Watts), laser at full power it could be 2
- 2.5 kW total.

1 kW = 3400 BTU/hr (according to google, I have no idea what those royal
units mean)


--
Zdenek Svindrych, Ph.D.
W.M. Keck Center for Cellular Imaging (PLSB 003)
University of Virginia, Charlottesville, VA
http://www.kcci.virginia.edu/
tel: [phone]
Annual FRET Workshop: http://kcci.virginia.edu/workshop-2017


---------- Původní zpráva ----------
Od: Cammer, Michael <[hidden email]>
Komu: [hidden email]
Datum: 8. 2. 2017 13:52:03
Předmět: BTU for typical microscope question

"*****
To join, leave or search the confocal microscopy listserv, go to:
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*****

We are proposing a new lab and the designers would like us to provide
cooling needs.

For a laser scanning confocal with one gas (KrAr) and 3 or 4 diode lasers ,
standard illumination for fluorescence, and an environmental chamber, does
anyone have an estimate of BTUs?

Thank you!!



=========================================================================
Michael Cammer, Microscopy Core & Skirball Institute, NYU Langone Medical
Center
Cell: 914-309-3270 Office: Skirball 2nd Floor main office, back right
http://ocs.med.nyu.edu/microscopy & http://microscopynotes.com/ 


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[Benjamin Smith]

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Don't forget people also make a fair amount of heat on their own.  The
average human apparently generates 330 BTUs of heat.  When setting up the
ventilation, you'll also want to make sure there is minimal lag between the
microscope turning on, and the ventilation cooling off the room.  The way
we fixed this was to set the ventilation to run constantly and have the
chilled water supply be what was modulated.  We also had a fan blowing from
the floor up to the thermostat, to allow the thermostat to detect new heat
loads faster.  These two tricks alone kept the room within +/- 0.1oC even
when a laser was turned on, which is excellent for keeping optics in
alignment long term.

-Ben Smith

On Wed, Feb 8, 2017 at 11:22 AM, <[hidden email]> wrote:

> *****
> To join, leave or search the confocal microscopy listserv, go to:
> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> Post images on http://www.imgur.com and include the link in your posting.
> *****
>
> Hi Michael,
> the electrical power drawn equals to the heat produced.
>
>
> Our Zeiss confocal consumes about 1.3 kW with the Ar-ion at low power (UPS
> efficiency included), without the lamp (additional 0.2 kW; 0 kW for LED, as
> those are mostly off on a confocal). With chamber (small on stage are few
> Watts, large could be few hundred Watts), laser at full power it could be 2
> - 2.5 kW total.
>
> 1 kW = 3400 BTU/hr (according to google, I have no idea what those royal
> units mean)
>
>
> --
> Zdenek Svindrych, Ph.D.
> W.M. Keck Center for Cellular Imaging (PLSB 003)
> University of Virginia, Charlottesville, VA
> http://www.kcci.virginia.edu/
> tel: [phone]
> Annual FRET Workshop: http://kcci.virginia.edu/workshop-2017
>
>
> ---------- Původní zpráva ----------
> Od: Cammer, Michael <[hidden email]>
> Komu: [hidden email]
> Datum: 8. 2. 2017 13:52:03
> Předmět: BTU for typical microscope question
>
> "*****
> To join, leave or search the confocal microscopy listserv, go to:
> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> Post images on http://www.imgur.com and include the link in your posting.
> *****
>
> We are proposing a new lab and the designers would like us to provide
> cooling needs.
>
> For a laser scanning confocal with one gas (KrAr) and 3 or 4 diode lasers ,
> standard illumination for fluorescence, and an environmental chamber, does
> anyone have an estimate of BTUs?
>
> Thank you!!
>
>
>
> =========================================================================
> Michael Cammer, Microscopy Core & Skirball Institute, NYU Langone Medical
> Center
> Cell: 914-309-3270 Office: Skirball 2nd Floor main office, back right
> http://ocs.med.nyu.edu/microscopy & http://microscopynotes.com/
>
>
> ------------------------------------------------------------
> This email message, including any attachments, is for the sole use of the
> intended recipient(s) and may contain information that is proprietary,
> confidential, and exempt from disclosure under applicable law. Any
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> have received this email in error please notify the sender by return email
> and delete the original message. Please note, the recipient should check
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> organization
> accepts no liability for any damage caused by any virus transmitted by this
> email.
> =================================
> "
>

--
Benjamin E. Smith, Ph. D.
Microscopy Specialist, Vision Science
University of California, Berkeley
142 Life Sciences Addition
Berkeley, CA  94720-3200
Tel  [phone]
Fax [phone]
e-mail: [hidden email]
http://vision.berkeley.edu/

[Chris Guerin-2]

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Dear Michael:

        You should also figure in the computers in the room. If they have high end graphics cards they can generate an additional 500-750W. When we built our core I figured for the system output, 3 people and 2 computers then multiplied by 1.5 just to be sure. Good luck.

Best,

Chris

[jerie]

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Dear Michael,

direct coupling of the main heat sources to the waste air system will
greatly alleviate the needs for local HVAC.

The power consumption of your confocal should be available from the
provider, however 5kWh, ie. about 17kBTU should in any case be sufficient
for a system you describe. That said be aware you will anyways need to
change the air volume of the room >10 times per hour, so it will depend on
the specifications of that incoming air how much extra heat load you will
need to compensate for by the local HVAC system.

Make sure the sensor is positioned at about the height of your microscope
stage, prevent the HVAC system from blowing cold air directly onto the
micrsocope or the sensor.

Kind regards,
Jens

Dr. Jens Rietdorf, visiting scientist @ center for technological
development in health CDTS, Oswaldo Cruz Foundation Fiocruz, Rio de Janeiro
Brasil.

On Wed, Feb 8, 2017 at 4:51 PM, Cammer, Michael <[hidden email]>
wrote:

> *****
> To join, leave or search the confocal microscopy listserv, go to:
> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> Post images on http://www.imgur.com and include the link in your posting.
> *****
>
> We are proposing a new lab and the designers would like us to provide
> cooling needs.
>
> For a laser scanning confocal with one gas (KrAr) and 3 or 4 diode lasers
> , standard illumination for fluorescence, and an environmental chamber,
> does anyone have an estimate of BTUs?
>
> Thank you!!
>
>
>
> =========================================================================
> Michael Cammer, Microscopy Core & Skirball Institute, NYU Langone Medical
> Center
>          Cell:  914-309-3270     Office: Skirball 2nd Floor main office,
> back right
>             http://ocs.med.nyu.edu/microscopy &
> http://microscopynotes.com/
>
>
> ------------------------------------------------------------
> This email message, including any attachments, is for the sole use of the
> intended recipient(s) and may contain information that is proprietary,
> confidential, and exempt from disclosure under applicable law. Any
> unauthorized review, use, disclosure, or distribution is prohibited. If you
> have received this email in error please notify the sender by return email
> and delete the original message. Please note, the recipient should check
> this email and any attachments for the presence of viruses. The
> organization accepts no liability for any damage caused by any virus
> transmitted by this email.
> =================================
>

[mcammer]

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Thank you everyone who replied to this.  Very helpful.
=*===========================================================*=
 Michael Cammer, DART Microscopy Laboratory, NYU Langone Medical Center
    Cell:  914-309-3270     Office: Skirball 2nd Floor main office, back right
      http://ocs.med.nyu.edu/microscopy & http://microscopynotes.com/

 

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