My model includes the SOFC fuel cell from the Microcogeneration.idf
example file, in which the generator runs as Baseload so runs constantly, generating both heat and power). My problem is that I'm getting plant loop overheating warnings as the heat demand is too low, if not outright failures due to a runaway plant temperature error.
So there are two main problems to be dealt with:
- 1) There is a lot of heat building up in the zone where the CHP is located leading to very high air temperatures
- 2) The CHP is generating more heat than is needed in the building leading to runaway plant temperatures
The solution to both of these seems to be to dump the excess heat (leaving aside changing the operation to FollowThermal for now). I assume adding extract ventilation would be the best option for problem 1, but what would be my best option for dumping heat to solve problem 2?