Heat pump solution
Heat pump solution
(OP)
Is heat pump a viable retrofit over Boiler to generate hot water for the use in places like hotel? the hot water temperature requirement is 60 deg Celcius. please let me know in casu you need more details. any comment on this will be highly appreciated..
Regards,
Fayeque
Regards,
Fayeque





RE: Heat pump solution
doing without that is the same as if the doctor would prescribe medicament to patient without blood tests or other tests.
generally, heat pumps are not good in providing 60 degrees temperature, and magninute of hot water demand is high, they cannot work alone.
that does not mean, however, that combination of heat pump and smaller hot water boiler is not much more effective than hot water boiler alone. the judgment mostly depend on mentioned analysis. climatic area where you are in plays one of major roles.
RE: Heat pump solution
RE: Heat pump solution
RE: Heat pump solution
RE: Heat pump solution
RE: Heat pump solution
RE: Heat pump solution
RE: Heat pump solution
RE: Heat pump solution
RE: Heat pump solution
Thanks to all for taking your time and writing.
Let me elaborate more on it.
the place where i am trying to suggest this solution has very low electricity cost as compared to Natural gas for gas fired boiler.
The existing scenario- there are Gas fired boilers generating hot water at 78 deg c which is routed through Calorifier(Plate and shell type heat exchanger)to Boiler for heat exchange. The calorifier supply and return temperature is 60 deg C(required at storage tank) and 55 deg Celcius.
What i am suggesting is - to generate direct 60 deg celcius hot water and suppliet to storage tank. and additional benefit will be chilled water generated which i can route to Chilled water tank and will reduce loading on existing chiller.
Hope i clarified..please feel free to ask any doubts or share suggestion with me.
Please let me know or else i will take time and prepare schematic of existing scenario and share with you guys.
Thanks in advance,
Regards,
Fayeque
RE: Heat pump solution
RE: Heat pump solution
RE: Heat pump solution
now, to get a heat from heat pump, the heat pump should be in cooling mode, what would cool this unit as long as you have already a chiller system for HVAC.
- heat pump is an HVAC tool, it is not designed for hot water production, the domestic hot water is water for human use, did you see someone drink or get a shower directly from hydronic heating or cooling system without heat exchanger,
- as long as electricity is way cheaper than gas, then way don't you use electrical water heaters, it is cheaper, easy for installation and more efficiency.
RE: Heat pump solution
It discusses using a chiller for hot water production, with chilled water as a byproduct, giving several example applications.
RE: Heat pump solution
As a result, this water must be protected
from contamination from potentially harmful sources.
Many codes require the separation of the potable hot
water source from non-potable sources by means of a
double-wall vented air gap in the heat exchanger as a
minimum. This would minimize the risk of internal
leakage and cross-contamination between the two
fluids.
Fayeque has suggested to direct the water directly from heat pump condenser to water storage tank, that was my point.
RE: Heat pump solution
RE: Heat pump solution
RE: Heat pump solution