Principle of BWB-SS-DC heat pump
System description
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BWB-SS-DC series heat pump can exploit the energy contained in natural heat sources. Or, to put it differently, the
heat pump 'collects' heat energy from the heat source.
The heat from the heat source (rock, soil, lake) is taken up via a closed collector system in which a mixture of water
and antifreeze circulates; ground water can also be used as a heat source.
The brine emits its heat to the refrigerant in the heat pump's evaporator; it then vaporizes and is compressed in the
compressor. The refrigerant, the temperature of which has now been raised, is passed to the condenser where it
gives off its energy to the heating medium circuit and, if necessary, to the water tank.
The cycle can be explained in the following stage process:
e. The heat energy released from heat carrier to water tank or radiator or floor heating systems;
a. A hose filled with liquid (brine system) is immersed into a lake, dug into the ground or sunk into the rock. The
Brine system absorbs the heat energy of the heat source so that the temperature of the water circulating in the
hose is raised a few degree;
b. The brine system is circulated to the heat pump's evaporator. Here the heat energy of the Brine system cause
the refrigerant, circulating through the evaporator, to boil and turn into a gas- it evaporates;
c. The refrigerant, having absorbed heat energy, is circulated to the compressor where pressure and temperature
are raised;
d. The refrigerant continues to go to the condenser. When condensing, it releases heat energy to the heat carrier,
circulating through the condenser. The temperature of the refrigerant sinks, and it returns to its liquid state;
f. Finally the refrigerant is led through the expansion valve, where its pressure is reduced, and then continues to go
to the evaporator, ready to start the whole circle once again.
Brine system circuit ---- a kind of mixture water (with brine) transports energy from heat source to heat pump;
Heating circuit ---- water transport heat energy to the heating system (radiators/floor coils) or the water tank.
Refrigerant circuit ---- circulates inside the heat pump, through evaporation, compression and condensation it absorbs
energy from the Brine system and releases it to the heat carrier. The refrigerant is chlorine-free;
Brine system circuit
Brine system
Brine system circuit
Brine system
The heat pump has three separate liquid circuits:
