[Bldg-sim] Baseline Efficiencies

[Felipe Durán]

Bill,

Thank you very much for your email. Since I have ASHRAE 90.1 2007 SI  
Edition, the cooling efficiencies for a "split system and single  
package" are in metric units. For cooling the minimum efficiency is  
COP 2.7 (kW / kW) which is equivalent in imperial units to EER 9.2  
(Btuh/kW). For heating the baseline efficiency will be COP 1 (Electric  
Resistance).

Kind Regards,

Felipe Durán Palma
Arquitecto PUC, MPhil. U. Cambridge
Director de Proyectos y Asesorías



Obispo Donoso 5 oficina 62 - Providencia - Santiago
felipe at b-green.cl - www.b-green.cl - 56 (2) 3431868





El 17 Sep 2009, a las 16:49, Bill Talbert escribió:

> Felipe,
> Sounds like you should be looking at ASHRAE 90.1 Table 6.8.1A for  
> >760,000 Btuh units (9.2 EER) if the baseline cooling capacity is  
> 500 kW. Your heating system would be electric resistance. The  
> baseline is not a heat pump if you have System 6.
> Regards,
> Bill
>
> Bill Talbert, PE, LEED AP
> Sustainable
> Affiliated Engineers, Inc.
> 5802 Research Park Blvd. | Madison, Wisconsin  53719 | P  
> 608.441.6677 | F 608.238.2614
> btalbert at aeieng.com | www.aeieng.com
>
> From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org 
> ] On Behalf Of Felipe Durán
> Sent: Thursday, September 17, 2009 2:12 PM
> To: bldg-sim at lists.onebuilding.org
> Subject: [Bldg-sim] Baseline Efficiencies
>
> Dear All,
>
> I`m modelling  a 3 floor non-building using the appendix G.  
> According to the size and type of the building,  the baseline HVAC  
> system type would be a "packaged rooftop VAV with reheat" (system  
> 6). The proposed building has a heat pump for heating and cooling of  
> about 500 kW. Does anybody knows about the baseline efficiencies for  
> both cooling and heating? I have checked 90.1 standard and it seems  
> that they would be COP 1 (heating) COP 2.7 (cooling). Am I right?
>
> Thanks,
>
>
> Felipe Durán Palma
> Arquitecto PUC, MPhil. U. Cambridge
> Director de Proyectos y Asesorías
>
> <image001.png>
>
> Obispo Donoso 5 oficina 62 - Providencia - Santiago
> felipe at b-green.cl - www.b-green.cl - 56 (2) 3431868
>
>
>
>
>
>

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