GSHP (water-to-water) with radiant heating and cooling
Hello,
I'm currently using OS 2.9.1 and model a residential building as part of my bachelor thesis in which I applied a GSHP (which should be reversible, that means it provides heating and cooling) and connected it successfully to my secondary radiant heating loop.
However, when I add a water-to-water Heat Pump cooling object and create a secondary radiant cooling loop, no cooling is provided. Temperature Setpoint managers are applied for both -heating and cooling. How can I fix that problem?
GSHP loop with water-to-water Heat Pump (heating and cooling)
Radiant heating loop (heating coil of heat recovery ventilation)
Radiant cooling loop --> no cooling in the final results!
The closest solution I found and implemented successfully was similar to link text where GSHP water-to-water for heating and water-to-air for cooling was used. But I would prefer if cooling is as well provided by a water-to-water object.
My prefered model (cooling yet not working) and my working model with water-to-air cooling (but probably as well heating) are included here: link text
I would appreciate so much a fast answer on how to modify my preferred model that as well cooling is provided by only a water-to-water Heat Pump!!
(PS: I sensed that with a central heat pump system I could solve the problem, but I couldn't modify it accordingly that optimal zone conditions are ensured...)
Together with a fellow student, I have the model the exact same system like the one you use! We have tried to adjust many parameters like cooling capacity, water flow rate, using other setpoint managers, changing the temperature schedules ... but without success. I see you modeled a coil heating water in your radiant hot water loop (for space heating), is that to supply a shower/bath/ sink of does this have another function? We will keep you informed if we have found a solution.
Hello Pieter, thank you for trying! The heating coil I connected with the air loop with energy recovery ventilation. Eventually I should also connect a cooling coil to the cooling loop... but I doubt that would solve the problem