Inniswhe
05-05-2010, 02:07 AM
I have an ice rink application with both a evap condenser mounted on the roof and a frame/plate water cooled condenser for heat recovery piped in parallel.
I was planning on using a surge type high pressure receiver to provide ample storage for the potential liquid backup in the evap condenser when it is not in use.
There is a motorized valve on the line leading to the evaporative condenser to minimize unwanted condensing effect when the water condenser is capturing the condenser heat.
The plan is to feed the flooded frame and plate evaporator is with a motorized control valve and level control.
Does anyone have any experience with this sort of parallel condensers with a simplified system that would eliminate the high pressure receiver and use a high pressure float valve to feed the evaporator suction accumulator. It would be a critically charged system with an oversized suction accumulator on the evaporator that could hold the extra charge to permit the evap. condenser to hold up liquid if this occurs without starving the evaporator.
The condensing temp. is normally 95-100F during heat recovery. The outside ambient can get down to 0F.
I was planning on using a surge type high pressure receiver to provide ample storage for the potential liquid backup in the evap condenser when it is not in use.
There is a motorized valve on the line leading to the evaporative condenser to minimize unwanted condensing effect when the water condenser is capturing the condenser heat.
The plan is to feed the flooded frame and plate evaporator is with a motorized control valve and level control.
Does anyone have any experience with this sort of parallel condensers with a simplified system that would eliminate the high pressure receiver and use a high pressure float valve to feed the evaporator suction accumulator. It would be a critically charged system with an oversized suction accumulator on the evaporator that could hold the extra charge to permit the evap. condenser to hold up liquid if this occurs without starving the evaporator.
The condensing temp. is normally 95-100F during heat recovery. The outside ambient can get down to 0F.