MICROCHANNEL HEAT EXCHANGER
First Claim
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1. A cooling system comprising:
- a first flue and a second flue cooperatively defining an air passageway;
a fan disposed in the air passageway to generate an airflow through the first and second flue; and
an evaporator in communication with at least one of the first flue and the second flue for cooling the airflow, the evaporator comprisingan inlet header configured to receive a cooling fluid;
an outlet header configured to discharge the cooling fluid; and
a plurality of microchannel tubes in fluid communication with and extending between the inlet header and the outlet header, the microchannel tubes defining a first side of the heat exchanger between the inlet header and the outlet header and an opposed second side of the heat exchanger between the inlet header and the outlet header, the evaporator positioned in the air passageway such that the airflow passes from the first side to the second side and then passes from the second side to the first side.
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Abstract
A heat exchanger includes an inlet header configured to receive a cooling fluid and an outlet header configured to discharge the cooling fluid. A plurality of microchannel tubes are in fluid communication with and extend between the inlet header and the outlet header. The microchannel tubes define a first heat exchanger region and a second heat exchanger region between the inlet header and the outlet header. The first heat exchanger region has a plurality of fins defining a first fin density that is greater than a second fin density of the second heat exchanger region.
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Citations
20 Claims
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1. A cooling system comprising:
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a first flue and a second flue cooperatively defining an air passageway; a fan disposed in the air passageway to generate an airflow through the first and second flue; and an evaporator in communication with at least one of the first flue and the second flue for cooling the airflow, the evaporator comprising an inlet header configured to receive a cooling fluid; an outlet header configured to discharge the cooling fluid; and a plurality of microchannel tubes in fluid communication with and extending between the inlet header and the outlet header, the microchannel tubes defining a first side of the heat exchanger between the inlet header and the outlet header and an opposed second side of the heat exchanger between the inlet header and the outlet header, the evaporator positioned in the air passageway such that the airflow passes from the first side to the second side and then passes from the second side to the first side. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A heat exchanger comprising:
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an inlet header configured to receive a cooling fluid; an outlet header configured to discharge the cooling fluid; and a plurality of microchannel tubes in fluid communication with and extending between the inlet header and the outlet header, the microchannel tubes defining a first heat exchanger region and a second heat exchanger region between the inlet header and the outlet header, wherein the first heat exchanger region has a plurality of fins defining a first fin density that is greater than a second fin density of the second heat exchanger region. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A refrigerated merchandiser comprising:
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a case defining a product display area and including a first flue and a second flue cooperatively defining an air passageway internal to the case and in fluid communication with the product display area; a fan for generating an airflow within the air passageway; and an evaporator disposed in the case for cooling the airflow, the evaporator comprising an inlet header configured to receive a cooling fluid; an outlet header configured to discharge the cooling fluid; and a plurality of microchannel tubes in fluid communication with and extending between the inlet header and the outlet header, wherein the microchannel tubes are bent along a bend axis to define a first heat exchanger region on one side of the bend axis and a second heat exchanger region on the other side of the bend axis, the plurality of microchannel tubes of the first heat exchanger region angled at a non-zero angle relative to the microchannel tubes of the second heat exchanger region about the bend axis. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification