Asymmetric heat exchanger

Abstract

A heating, ventilation, and air conditioning (HVAC) system, includes an enclosure and a heat exchanger disposed within the enclosure, where the heat exchanger includes a first slab and a second slab, the first slab includes a first configuration, and the second slab includes a second configuration, different from the first configuration. The HVAC system further includes a blower disposed within the enclosure, where the blower may direct an air flow across the heat exchanger, and the blower includes a motor to operate the blower, where the motor is aligned with the first slab, relative to a direction of the air flow through the enclosure. The blower also includes an intake to receive the air flow, where the intake is aligned with the second slab, relative to the direction of the air flow through the enclosure.

1 . A heating, ventilation, and air conditioning (HVAC) system, comprising:
 an enclosure;   a heat exchanger disposed within the enclosure, wherein the heat exchanger comprises a first slab and a second slab, the first slab comprises a first configuration, and the second slab comprises a second configuration, different from the first configuration; and   a blower disposed within the enclosure, wherein the blower is configured to direct an air flow across the heat exchanger, and the blower comprises:
 a motor configured to operate the blower, wherein the motor is aligned with the first slab, relative to a direction of the air flow through the enclosure; and 
 an intake configured to receive the air flow, wherein the intake is aligned with the second slab, relative to the direction of the air flow through the enclosure. 
   
     
     
         2 . The HVAC system of  claim 1 , wherein the first configuration is configured to impart a first air flow resistance to the air flow, the second configuration is configured to impart a second air flow resistance to the air flow, and the first air flow resistance is less than the second air flow resistance. 
     
     
         3 . The HVAC system of  claim 1 , wherein the first slab and the second slab are oriented in an A-shape configuration. 
     
     
         4 . The HVAC system of  claim 1 , wherein the first configuration comprises a first fin density, the second configuration comprises a second fin density, and the first fin density is less than the second fin density. 
     
     
         5 . The HVAC system of  claim 1 , wherein the heat exchanger comprises a third slab, wherein the first slab, the second slab, and the third slab are coupled to one another to define an “N” shape configuration, wherein the intake is aligned with the third slab, relative to the direction of the air flow through the enclosure. 
     
     
         6 . The HVAC system of  claim 1 , wherein the first configuration comprises a first number of coil passes, the second configuration comprises a second number of coil passes, and the first number of coil passes is less than the second number of coil passes. 
     
     
         7 . The HVAC system of  claim 1 , wherein the first configuration comprises first coils having a first coil spacing, the second configuration comprises second coils having a second coil spacing, and the first coil spacing is greater than the second coil spacing. 
     
     
         8 . The HVAC system of  claim 1 , wherein the first configuration comprises a first number of coil rows, the second configuration comprises a second number of coil rows, and the first number of coil rows is less than the second number of coil rows. 
     
     
         9 . The HVAC system of  claim 1 , wherein the first configuration comprises first heat exchange tubes having a first coil diameter, the second configuration comprises second heat exchange tubes having a second coil diameter, and the first coil diameter is less than the second coil diameter. 
     
     
         10 . The HVAC system of  claim 1 , wherein the motor is disposed on a first side of the blower, and the intake is disposed on a second side of the blower, opposite the first side. 
     
     
         11 . A heat exchanger for a heating, ventilation, and air conditioning (HVAC) system, wherein the heat exchanger comprises:
 a first slab comprising a first plurality of coils, wherein the first slab is configured to impart a first air flow resistance to an air flow directed across the heat exchanger via a blower; and   a second slab comprising a second plurality of coils, wherein the second slab is configured to impart a second air flow resistance to the air flow directed across the heat exchanger via the blower, and the second air flow resistance is greater than the first air flow resistance,   wherein the first slab and the second slab are configured to couple to one another, and the heat exchanger is configured to be disposed within an enclosure and in alignment with the blower, relative to a direction of the air flow through the enclosure, in an installed configuration of the heat exchanger.   
     
     
         12 . The heat exchanger of  claim 11 , wherein the first slab comprises a first width, the second slab comprises a second width, and the first width is less than the second width. 
     
     
         13 . The heat exchanger of  claim 11 , wherein the first slab is configured to be oriented within the enclosure at a first angle relative to the direction of the air flow, the second slab is configured to be oriented within the enclosure at a second angle relative to the direction of the air flow, and the first angle is greater than the second angle. 
     
     
         14 . The heat exchanger of  claim 11 , wherein the first slab comprises a first plurality of fins coupled to the first plurality of coils, the second slab comprises a second plurality of fins coupled to the second plurality of coils, the first plurality of fins comprises a first fin density, the second plurality of fins comprises a second fin density, and the first fin density is less than the second fin density. 
     
     
         15 . The heat exchanger of  claim 11 , wherein the first slab is configured to align with a motor of the blower, relative to the direction of the air flow, in the installed configuration of the heat exchanger, and the second slab is configured to align with an intake of the blower, relative to the direction of the air flow, in the installed configuration of the heat exchanger. 
     
     
         16 . The heat exchanger of  claim 11 , comprising a third slab, wherein the first slab, the second slab, and the third slab are coupled to one another to define an “N” shape configuration. 
     
     
         17 . The heat exchanger of  claim 11 , wherein the first plurality of coils defines a first number of coil passes, the second plurality of coils defines a second number of coil passes, and the first number of coil passes is less than the second number of coil passes. 
     
     
         18 . A heating, ventilation, and air conditioning (HVAC) system comprising:
 an enclosure comprising a first wall and a second wall;   a blower disposed within the enclosure and configured to induce an air flow through the enclosure, wherein the blower comprises a motor disposed adjacent to the first wall and an air intake disposed adjacent to the second wall; and   a heat exchanger disposed within the enclosure, wherein the heat exchanger comprises a first slab and a second slab, the first slab is aligned with the motor, relative to a direction of the air flow through the enclosure, the second slab is aligned with the air intake, relative to the direction of the air flow through the enclosure, the first slab is configured to impart a first air flow resistance to the air flow, and the second slab is configured to impart a second air flow resistance, greater than the first air flow resistance, to the air flow.   
     
     
         19 . The HVAC system of  claim 18 , wherein respective heat exchange tube spacings, respective number of heat exchange tubes, respective fin densities, respective number heat exchange tube passes, or any combination thereof, of the first slab and the second slab are different from one another. 
     
     
         20 . The HVAC system of  claim 18 , wherein the first slab and the second slab are coupled to one another in an A-shape configuration.