Efficient heat pump

Abstract

An efficient heat pump is disclosed, the heat content of the refrigerant flowing out of an existing condenser is reduced by sub-cooling using an additional condenser. The heat reduced during the sub-cooling phase is added to the evaporator to superheat the refrigerant during evaporation phase. Removing heat from condensation phase (which is otherwise wasted) of the refrigeration cycle and adding that heat to the evaporation phase (which requires additional heat) may enhance the efficiency of the heat pump.

1 . A heat pump comprising:
 an existing condenser, wherein the existing condenser includes an inlet, an outlet and a condenser pipe, wherein the existing condenser is to generate a first refrigerant at first temperature by dissipating a first portion of heat from a refrigerant flowing through the condenser pipe to a medium surrounding the existing condenser,   an additional condenser comprising an input side, an output side and a condenser element, wherein the input side is coupled to the outlet of the existing condenser and the output side is coupled to the first input of a heat exchanger, wherein the additional condenser is to generate a second refrigerant at a second temperature by further reducing a second portion of heat of the first refrigerant by dissipating the second portion of heat of the first refrigerant flowing through the condenser element to a substance flowing over the condenser element,   a heat exchanger including a first and second input and a first and second output, wherein the heat exchanger is to receive the second refrigerant through the first input and a third refrigerant through the second input, wherein a third portion of heat content is transferred from the second refrigerant to the third refrigerant,   an expansion valve is to generate a fourth refrigerant by performing adiabatic expansion in response to receiving the second refrigerant from the heat exchanger, and   an evaporator to generate the third refrigerant in response to receiving the fourth refrigerant, wherein the heat content of the substance is added to the third refrigerant by passing the substance over the evaporator,   wherein dissipating the second portion of heat of the first refrigerant flowing through the condenser element to a substance flowing over the condenser element and adding the heat content of the substance to the third refrigerant by passing the substance over the evaporator is to enhance the performance of the heat pump.   
     
     
         2 . The heat pump of  claim 1 , wherein reducing the second portion of heat of the first refrigerant by dissipating the second portion of heat of the first refrigerant flowing through the condenser element to a substance flowing over the condenser element is to increase an area of a refrigeration cycle by a first value. 
     
     
         3 . The heat pump of  claim 1 , wherein transferring the third portion of heat content from the second refrigerant to the third refrigerant is to increase the area of the refrigeration cycle by a second value. 
     
     
         4 . The heat pump of  claim 1 , wherein the condenser pipe of the existing condenser is made of a metal, which is a good conductor of heat. 
     
     
         5 . The heat pump of  claim 1 , wherein the condenser element of the additional condenser is made of metal, which is a good conductor of heat. 
     
     
         6 . The heat pump of  claim 4 , wherein the existing condenser is submerged in a first liquid tank to use the first portion of heat to increase the temperature of the liquid in the first liquid tank. 
     
     
         7 . The heat pump of  claim 1  further comprises an air blower, wherein the air blower is to blow the air on the additional condenser to dissipate the second portion of heat from the first refrigerant. 
     
     
         8 . The heat pump of  claim 1  further comprises a sprinkler, wherein the sprinkler is to sprinkle a liquid on the additional condenser to dissipate the second portion of heat from the first refrigerant. 
     
     
         9 . The heat pump of  claim 1  further comprises a second liquid tank, wherein the additional condenser is submerged into the second liquid tank, wherein the second portion of heat is dissipated to the liquid in the second liquid tank from the first refrigerant. 
     
     
         10 . The heat pump of  claim 1 , wherein the second portion of heat extracted from the first refrigerant in the additional condenser is added to the third refrigerant to increase the temperature of the third refrigerant generated by the evaporator. 
     
     
         11 . The heat pump of  claim 10 , wherein the second portion of heat is absorbed by an ambient air blown over the additional condenser. 
     
     
         12 . The heat pump of  claim 11 , wherein the ambient air, which has absorbed the second portion of heat, is blown over the evaporator to increase the temperature of the third refrigerant. 
     
     
         13 . The heat pump of  claim 1 , wherein the heat pump is placed in an open space outside the enclosed space, wherein the temperature of the open space is substantially lesser than that of the enclosed space. 
     
     
         14 . The heat pump of  claim 13 , wherein ambient air from the open space that is cold is used to extract the second portion of heat from the first refrigerant while passing through the additional condenser during a second condensation phase. 
     
     
         15 . The heat pump of  claim 14 , wherein the extracted second portion of heat is utilized to increase the temperature of the third refrigerant during evaporation phase. 
     
     
         16 . The heat pump of  claim 9 , wherein the liquid in the second liquid tank is allowed to flow over the evaporator to add second portion of heat to the third refrigerant. 
     
     
         17 . The heat pump of  claim 1 , wherein the heat exchanger is used to further increase the temperature of the third refrigerant by allowing the third portion of heat of the second refrigerant to be transferred to the third refrigerant within the heat exchanger. 
     
     
         18 . The heat pump of  claim 17 , wherein the heat exchanger is tube-in-tube heat exchanger. 
     
     
         19 . The heat pump of  claim 1 , wherein the extracting the second portion of heat from the first refrigerant in the additional condenser is to enhance the refrigeration effect of the fourth refrigerant. 
     
     
         20 . The heat pump of  claim 19 , wherein the enhanced refrigeration effect of the fourth refrigerant is use to provide cooling effect by passing ambient air over the fourth refrigerant, wherein the ambient air that is passed over the fourth refrigerant is distributed in a closed industrial and domestic space. 
     
     
         21 . The heat pump of  claim 17 , wherein the first portion of the heat and the second portion of heat is channelized to provide heating effect in a closed industrial and domestic space. 
     
     
         22 . A method to enhance coefficient of performance of a heat pump, comprising:
 receiving an initial refrigerant,   generating a first refrigerant at a first temperature by dissipating a first portion of heat from the initial refrigerant in a first condensation phase,   generating a second refrigerant at a second temperature by further reducing a second portion of heat from the first refrigerant by dissipating the second portion of heat of the first refrigerant in a second condensation phase,   transferring a third portion of heat from the second refrigerant to a third refrigerant in a superheating phase in response to receiving the second refrigerant and the third refrigerant in a superheating phase,   generating a fourth refrigerant by performing adiabatic expansion in response to receiving the second refrigerant after the superheating phase, and   generating the third refrigerant in response to receiving the fourth refrigerant, wherein the second portion of heat extracted in the second condensation phase is added to the third refrigerant in an evaporation phase,   wherein dissipating the second portion of heat of the first refrigerant in second condensation phase and adding the second portion of heat to the third refrigerant in evaporation phase is to enhance the performance of the heat pump.   
     
     
         23 . The method of  claim 22 , wherein dissipating the second portion of heat of the first refrigerant in second condensation phase is to increase an area of a refrigeration cycle by a first value. 
     
     
         24 . The method of  claim 22 , wherein transferring the third portion of heat content from the second refrigerant to the third refrigerant is to increase the area of the refrigeration cycle by a second value. 
     
     
         25 . The method of  claim 22  further comprises using a first liquid to extract the first portion of heat from the initial refrigerant, which increases the temperature of the first liquid. 
     
     
         26 . The method of  claim 22  further comprises blowing ambient air to extract second portion of heat from the first refrigerant in the second condensation phase. 
     
     
         27 . The method of  claim 22  further comprises sprinkling a second liquid to extract the second portion of heat from the first refrigerant in the second condensation phase. 
     
     
         28 . The method of  claim 22  further comprises passing the first refrigerant through the second liquid to extract the second portion of heat from the first refrigerant in the second condensation phase. 
     
     
         29 . The method of  claim 22  further comprises increasing the temperature of the third refrigerant generated in the evaporation phase by adding the second portion of heat extracted from the first refrigerant in the second condensation phase to the third refrigerant. 
     
     
         30 . The method of  claim 26  further comprises increasing the temperature of the third refrigerant in the evaporation phase by blowing the ambient air, which has absorbed the second portion of heat from the first refrigerant. 
     
     
         31 . The method of  claim 22  further comprises provisioning the heat pump in an open space outside the enclosed space, wherein the temperature of the open space is substantially lesser than that of the enclosed space. 
     
     
         32 . The method of  claim 31  further comprises using the cold air from open space to extract the second portion of heat from the first refrigerant while passing through the additional condenser during a second condensation phase. 
     
     
         33 . The method of  claim 33  further comprises increasing the temperature of the third refrigerant by utilizing the extracted second portion of heat during evaporation phase. 
     
     
         34 . The method of  claim 28  further comprises adding the second portion of heat to the third refrigerant in the evaporation phase by allowing the second liquid to flow over third refrigerant. 
     
     
         35 . The method of  claim 22  further comprises increasing the temperature of the third refrigerant by transferring the third portion of heat of the second refrigerant to the third refrigerant in the superheating phase. 
     
     
         36 . The method of  claim 22  further comprises extracting the second portion of heat from the first refrigerant is to enhance the refrigeration effect of the fourth refrigerant. 
     
     
         37 . The method of  claim 36 , wherein using the enhanced refrigeration effect of the fourth refrigerant to provide cooling effect by passing ambient air over the fourth refrigerant, wherein the ambient air that is passed over the fourth refrigerant is distributed in a closed industrial and domestic space. 
     
     
         38 . The method of  claim 22  further comprises channelizing the first portion of the heat and the second portion of heat to provide heating effect in a closed industrial and domestic space.