[TRNSYS-users] Forcing Function

[aa1 at brighton.ac.uk]

Hello all,

 

I am attempting to create a forcing function for air-flow rate in a simulation. I want to use low air-velocity with no night ventilation over the winter months, and higher air-flow rate during the summer days and low air flow rate during summer nights. So what I am trying to achieve is not a start and stop (ON, OFF) situation for the whole cycle. For example:

 

 0-2160 hrs (winter)

 

07:00 -18:00 (200 m³/hr) Day ventilation (ON, OFF)

            18:00 -07:00 (0 m³/hr)     Night ventilation

 

2161-6552hrs (Summer);

 

            07:00-18:00 (1000 m³/hr) (ON continuously at different air flow rate)

            18:00-07:00 (200 m³/hr)

 

6552 - 8760hrs

 

 07:00 -18:00 (200 m³/hr) Day ventilation (ON, OFF)

            18:00 -07:00 (0 m³/hr)     Night ventilation

 

Any suggestions on how best to schedule such forcing function?                     

 

Abdullahi Ahmed (BSc. MSc.) Postgraduate researcher

School of the Environment

University of Brighton

Cockcroft Building

Lewes Rd.

Brighton

BN2 4GJ

 

Tel: +44 01273 643455

 

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