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Title:
Improvement of coefficient of performance of domestic refrigerator using flash chamber
Specification:
Field of Invention: Refrigeration.
Background of invention with regard to the drawback associated with the known art:
As energy availability, cost and environment is in question, in light of this, the present invention
is a step forward.
Objective of Invention:
To improve the COP of the system.
To reduce the electricity consumption, i.e., energy saved is energy produced.
To reduce pollution.
Summary:
Modified system has given better COP, reduced electricity consumption leading to reduction in
carbon emission.
Brief Description of Drawing:
Fig. 1: Depicts the Side View of the refrigerator with the incorporated design( Flash Chamber).
Fig.2: Depicts the Back View of the Refrigerator.
Detailed Description of Drawing:
tz
LFlash Chamber
II: Liquid line Vapor Outlet
III: Flash Chamber Liquid Outlet
IV: Capillary tube outlet
V: Liquid lin£ leading to evaporator inlet.
VI: Flash Chamber vapor line leading to compressor
VII: Evaporator outlet
VIII: Capillary tube intake (inlet)
IX: Compressor inlet (Suction)
X: Compressor outlet (Discharge)
The Reciprocating Compressor discharges the refrigerant used(R134a) at high temperature and
Pressure via its (X) outlet (Discharge) which then passes through condenser wherem it engages
in heat transfer with the surrounding environment Air) to lower down the temp.
It then flows on to the capillary tube which expands the refrigerant at its (IV) outlet driving
down the refrigerant's temperature and pressure.
From this point on, our modified circuitryinvolving the (I) Flash Chamber helps in separating
the vapor and liquid that are being produced at the (IV) outlet of Capillary tube.
The (II) Vapor outlet from the top of the(I) Flash Chamber directions the vapor portion to
the(IX) Compressor inlet(Suction).
The(III) Liquid Outlet from the bottom imparts flow to the liquid refrigerant which enters the
Evaporator wherein it actively takes part in the heat exchanging process inside the refrigerator.
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The Vapor from the (II) Flash Chamber Vapor Outlet and the Vapor resulting from the heat
epcchapging in the evaporator meet at a junction at the back of the refrigerator, both of which then
are being sucked into the compressor via the(X) Compressor inlet(Suction).

We claim:
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a. To increase the refrigerating effect of the domestic refrigerator.
b. Increase the coefficient of performance of the refrigerator.
c. Decrease the evaporator's pressure losses/drop.