[TRNSYS-users] Dehumidification and natural ventilation

[Audun Bull Kristiansen]

I have three questions:

  1.  Is it possible to model a dehumidifier (stand-alone room unit as in the attached picture) in TRNSYS? I model a tiny home made from a single shipping container with an air-to-air heat pump (Type 119c). During the summer I lower the temperature to dehumidify the air, but when there isn’t any cooling need in the room it would be good to have an option to dehumidify the air without cooling the entire room.
  2.  The container has a glass door and two windows, so it is a good potential to use natural ventilation for cooling part of the year. Can you give me some recommendation on how to model this when my main goal is to study changes in indoor temperature and cooling load? I have TRNFlow. I also see that some researchers use a co-simulation with CONTAM Type 97 or Type 98. For now I modelled it as another ventilation component with zero SFP in Type 56 with an input that is based on time, indoor temperature and ambient temperature from a calculator.
  3.  It would also be nice to have a report of the CO2 concentration in the room, to see if the ventilation is sufficient. But I can not see that I can select that as output in TRNSYS?
Kind regards Audun
Ph.D. student at Shanghai Jiao Tong University

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