Re: [EnergyPlus_Support] i cannot get the heating and cooling load

[Adriana Angelotti <Adriana.Angelotti@xxxxxxxxx>]

About Ian's question a and Mike's answer on heating/cooling load
:

If Purchased Air is a system you add only to compute heating and cooling
load,
the simulation results should be independent from the parameters you must
input such as:
- heating/cooling supply air temperature
- heating/cooling supply air humidity ratio

Moreover, the thermostatic control should be ideal, that is able to
respond
immediately to temperature changes.

Are my ideas correct? Is Purchased Air an ideal system in every
sense?
Thanks 

Adriana Angelotti

---

Adriana Angelotti 
PhD student 
eErg end-use Efficiency Research Group 
Politecnico di Milano, Dipartimento di Energetica 
Piazza Leonardo da Vinci 32 
20133 Milano 
Italy 
ph +39.02.2399.3859 
fax +39.02.2399.3940

---

 At 09.09 19/11/02 -0600, you wrote:
> Ian:  
>
> You do not need a complete HVAC system to compute the heating and 
> cooling loads, but you do need to add a "Purchased Air"
> system.  You 
> can read about this option in the Input Output Reference starting on
> page 393.  For an example of the objects required to describe this,
> see EnergyPlus\ExampleFiles\PurchAir.idf  
>
> Mike  
>
>
> On 18 Nov 2002, at 22:15, Ian Yiheng Wang wrote:
>
> > Hi there,
> > 
> > i am using the program for buildings' heating and cooling
> systems
> > designing. First of all i need the result of heating and cooling
> load
> > because what i need now is the heating and cooling load alone before
> i
> > move on to other apects of the design. i have already put in
> the
> > nscessary data for the heating and cooling load as such, the
> geometry
> > of buildings, the weather date, people, equipment,etc. the problem
> i
> > have got is that i cannot view my result for the heating and
> cooling
> > load. do i have to complete the whole processs such as the 
> Nodes, air
> > distribution, water loops, etc. to get the heating and cooling load.
> i
> > believe that the loads are independent of heating and cooling
> system
> > itself. kindly give me your advise on how to go about it.
> > 
> > regards,
> > 
> > 
> > Ian YH Wang
> > 
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