[TRNSYS-users] TRNSYS Type110 Temperature change

[Clare Murray <clare.murray@ise.fraunhofer.de>]

Dear TRNSYS Users,

I've been using pump type 110 (and previously 3b) within a solar thermal 
system. I've modelled the pumps in the system and am noticing a 
temperature change over the temperature inlet to the pump (measured at a 
tee piece prior to the pump) and the pump outlet. This difference is 
between -1.5 and 1.5 degC and results in fairly high amount heat 
transfer considering a high mass flow rate. This temperature difference 
is noticed even when I set the pump power and the motor heat loss 
fraction to 0. Can anyone explain to me why there is this temperature rise?

Thanks,
Clare