Heat exchanger
A heat exchanger having an active surface over which a fluid flows to affect an exchange of heat between the active surface and the fluid. In some embodiments, the active surface includes a logarithmic spiral wherein the radius of the logarithmic spiral measured at equiangular radii unfolds at a constant order of growth. Further embodiments exhibit an active surface conforming to the internal or external surface of particular class or genera of shells.
1. A heat exchanger comprising:
a base configured to be coupled to a thermal energy source;
a remote end; and
a vane extending from the base to the remote end and including an active surface, the active surface substantially conforming in at least one dimension to a logarithmic spiral, wherein the radius of the logarithmic spiral when measured at equiangular radii unfolds at a constant order of growth, and wherein heat generated by the thermal energy source is transmitted to a fluid, the fluid flowing from the base to the remote end and over at least a portion of the active surface of the vane.
2. The heat exchanger of claim 1 , wherein the active surface further substantially conforms in a second dimension to a logarithmic spiral, wherein the radius of the logarithmic spiral when measured at equiangular radii in the second dimension unfolds at a constant order of growth.
3. The heat exchanger of claim 1 further comprising a second vane extending from the base to the remote end and including an active surface that substantially conforms in at least one dimension to a logarithmic spiral, wherein the radius of the logarithmic spiral when measured at equiangular radii unfolds at a constant order of growth and wherein heat generated by the thermal energy source is transmitted to the fluid flowing from the base to the remote end and further over at least a portion of the active surface of the second vane.
4. The heat exchanger of claim 1 , wherein a profile width of the vane increases as the vane extends from the base.
5. The heat exchanger of claim 1 , wherein a profile width of the vane decreases as the vane extends from the base.
6. The heat exchanger of claim 1 , wherein the vane is hollow.
7. The heat exchanger of claim 1 , wherein the vane is solid.
8. The heat exchanger of claim 1 , wherein the vane includes a vortex-shaped void.
9. The heat exchanger of claim 1 , wherein the vane further includes a second active surface.
10. The heat exchanger of claim 9 , wherein the second active surface substantially conforms in at least one dimension to a logarithmic spiral, wherein the radius of the logarithmic spiral when measured at equiangular radii unfolds at a constant order of growth, and wherein heat generated by the thermal energy source is transmitted to the fluid, the fluid flowing from the base to the remote end and further over at least a portion of the second active surface of the vane.
11. A heat exchanger comprising:
a base configure to be coupled to a thermal energy source;
a remote end; and
a vane extending from the base to the remote end and including an active surface, wherein the active surface substantially conforms to the external configuration of a shell of the phylum Mollusca , class Gastropda or Cephalopoda, and wherein heat generated by the thermal energy source is transmitted to a fluid, the fluid flowing from the base to the remote end and over at least a portion of the active surface of the vane.
12. A heat exchanger comprising:
base configured to be coupled to a the energy source;
a remote end; and
a vane extending from the base to the remote end and including an active surface, wherein the active surface substantially conforms to the external configuration of a shell of the genera Volutidea, Argonauta, Nautilus, Conidea , or Turbinidea , and wherein heat generated by the thermal energy source is transmitted to a fluid, the fluid flowing from the base to the remote end and over at least a portion of the active surface of the vane.
13. A heat exchanger comprising:
a base configured to be coupled to a thermal energy source;
a remote end; and
a vane extending from the base to the remote end and including an active surface, wherein the active surface substantially conforms to the internal configuration of a shell of the phylum Mollusca , class Gastropda or Cephalopoda, and wherein heat generated by the thermal energy source is transmitted to a fluid, the fluid flowing from the base to the remote end and over at least a portion of the active surface of the vane.
14. A heat exchanger comprising:
a base configured to be coupled to a thermal energy source;
a remote end; and
a vane extending from the base to the remote end and including an active surface, wherein the active surface substantially conforms to the internal configuration of a shell of the genera Volutidea, Argonauta, Nautilus, Conidea , or Turbinidea , and wherein heat generated by the thermal energy source is transmitted to a fluid, the fluid flowing from the base to the remote end and over at least a portion of the active surface of the vane.
15. A heat exchanger comprising:
a base configured to be coupled to a thermal energy source;
remote end; and
a vane extending from the base to the remote end and inducing an active surface, wherein the active surface substantially conforms to the configuration of a whorl, and wherein heat generated by the thermal energy source is transmitted to a fluid, the fluid flowing from the base to the remote end and over at least a portion of the active surface of the vane.
16. A heat transfer method, comprising:
generating a fluid flow;
directing the fluid flow from a first point to a second point, wherein the first point receives heat generated by a thermal energy source and the second point is characterized by having a temperature less than that of the first point receiving the heat generated by the thermal energy source;
providing a heat exchanger in a flow path between the first point and the second point, wherein the heat exchanger includes a vane extending from a base of the heat exchanger and that is proximate to the first point to a remote end of the heat exchanger that is proximate the second point the vane including an active surface substantially conforming in at least one dimension to a logarithmic spiral, wherein the radius of the logarithmic spiral when measured at equiangular radii unfolds at a constant order of growth; and
transferring at least a portion of the thermal energy received at the first point to the second point irk the heat exchanger as the fluid flow is directed from the base to the remote end of the heat exchanger and over at Least a portion of the active surface of the vane.