[TRNSYS-users] Cooling coils difference & Loads-type 88, type 660

[David BRADLEY]

Janeet,

   Type88 and 660 are mathematically equivalent. In addition to the 
internal/external controls options I believe that Type660 allows you 
define multiple "zones" that are adjacent to one another. Yes, feeding 
cold air into the ventilation inputs would be a very simplified 
equivalency to modeling a temperature level control building.

   I would recommend using Type508 as a cooling coil model if possible 
and I would strongly recommend not using Type32. The others all have 
features that might (or might not) be useful in your particular 
circumstance so I'd recommend having a read through the documentation on 
each.

kind regards,

  David


On 07/09/2020 23:01, janeet anand via TRNSYS-users wrote:
> Dear experts,
>
> Currently working on a project to simulate an absorption chiller 
> feeding chilled water to 2 fan coil units which inturn control the 
> temperatures of 2 zones-feeding the ventilation temp and flow rate. 
> For comparison purposes, have set up the simple building loads using 
> type 88 and type 660 and plan to include a temperature level control 
> on the FCU.
>
> 1. What is the difference between the type 88 and type 660 apart from 
> the internal conditioning equipment control. Would HVAC equipment 
> feeding cold vent air input be equivalent to a temperature level 
> control for the building?
>
> 2. Please advise on the differences amongst the various cooling coils 
> - type 32, type 52, type 508, type 697, type 752.  Which would be the 
> most suitable type for the given application?
>
> Thank you for your time in advance.
>
> Regards,
> Janeet
>
>
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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