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Dear all TRNSYS users, Please ignore my last email. I am modeling an AHU system in TRNSYS for heating applications of a residential building. To calculate the air flows between thermal zones, from outside the building such as infiltration and due to ventilation system, I am going to use
TRNFlow. The main components in the ventilation system are: supply and return fans which can be variable or constant speed, heating coil and ducting system. To model these components in TRNFlow, I need to determine the size and capacity of the heating coil,
as well as the head and flow rate of the supply fan. How can I estimate the capacity of the heating coil and supply fan? Using TRNBuild, should I define first the infiltration, ventilation and ideal heating regimes, and then calculate the building's heating load? Also, is it possible to connect Type 151 and Type56-TRNFlow? Because, I'm going to set up a VAV system in TRNFlow in such a way that the speed of the supply fan component changes according to the amount of heat required in
each thermal zone. The last question I have is, I would like to know how to estimate the air coupling between thermal zones if I want to evaluate air transfers between them using the "coupling" regime. Are there any equations for this? Best Regards, Ali |