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US 2026/0296649 A1Published application
System for Directing Aircraft Waste Heat for Cargo Compartment Temperature Control and Method
AssigneeThe Boeing Company
InventorsBryce Aaron Tillack, Michael Dwayne Williams, Brian Conrad Christenson, Christopher C. Walling
Life of this patent
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Abstract
An aircraft cargo compartment temperature regulating system configured to increase air temperature by efficiently redirecting and re-purposing waste heat from an aircraft liquid chilling circuit using a heat exchanger to produce a heated airflow directed into an aircraft cargo compartment and methods are disclosed.
Claims20
An aircraft cargo compartment temperature regulating system for directing waste heat from an aircraft liquid chilling circuit to an aircraft cargo compartment, said aircraft cargo compartment temperature regulating system comprising:
- an aircraft liquid chilling circuit for providing chilling to a first aircraft region to reduce an environmental temperature in the first aircraft region, said aircraft liquid chilling circuit configured to provide absorbed waste heat from the first aircraft region to form a warmed liquid flow in a warmed liquid flow line in the aircraft liquid chilling circuit;
- a heat exchanger located in line with the aircraft liquid chilling circuit, said heat exchanger comprising a heat exchanger liquid inlet in communication with the warmed liquid flow line, said heat exchanger further comprising a cooler liquid heat exchanger outlet in communication with a cooler liquid flow line in the aircraft liquid chilling circuit, said heat exchanger further comprising a heat exchanger air inlet and a heat exchanger warmed air outlet, said heat exchanger configured to transfer waste heat in the warmed liquid flow to an airflow entering the heat exchanger air inlet;
- and
- an aircraft cargo compartment air duct in communication with an aircraft cargo compartment, said aircraft cargo compartment air duct further in communication with heat exchanger warmed air outlet, said heat exchanger located upstream of the aircraft cargo compartment air duct.
1 more element
A method for regulating air temperature in an aircraft cargo compartment, the method comprising:
- directing an onboard liquid chilling circuit to an aircraft first region, said onboard liquid chilling circuit configured to provide cooling to the aircraft first region, said onboard liquid chilling circuit further configured to capture heat from the aircraft first region and direct captured heat from the aircraft first region away from the aircraft first region in a warmed liquid flow in the onboard liquid chilling circuit;
- directing the warmed liquid flow to a heat exchanger warmed liquid inlet of the heat exchanger;
- directing an airflow to a heat exchanger airflow inlet of the heat exchanger;
- generating a warmed airflow at the heat exchanger;
- and
- directing the warmed airflow from a heat exchanger warmed airflow outlet to an aircraft cargo compartment via an aircraft cargo compartment air duct, said aircraft cargo compartment air duct in communication with the aircraft cargo compartment.
3 more elements
A method for regulating air temperature in an aircraft cargo compartment of an aircraft, the method comprising:
- installing into an aircraft, an aircraft cargo compartment temperature regulating system for directing waste heat from an aircraft liquid chilling circuit to an aircraft cargo compartment comprising, said aircraft cargo compartment temperature regulating system:
- an aircraft liquid chilling circuit configured to provide chilling to a first aircraft region to reduce an environmental temperature in the first aircraft region, said aircraft liquid chilling circuit further configured to provide absorbed waste heat from the first aircraft region to form a warmed liquid flow in a warmed liquid flow line in the aircraft liquid chilling circuit;
- a heat exchanger located in line with the aircraft liquid chilling circuit, said heat exchanger comprising a heat exchanger liquid inlet in communication with the warmed liquid flow line, said heat exchanger further comprising a cooler liquid heat exchanger outlet in communication with a cooler liquid flow line in the liquid chilling circuit, said heat exchanger further comprising a heat exchanger air inlet and a heat exchanger warmed air outlet, said heat exchanger configured to transfer waste heat in the warmed liquid flow to an airflow entering the heat exchanger air inlet;
- and
- an aircraft cargo compartment air duct in communication with an aircraft cargo compartment, said aircraft cargo compartment air duct further in communication with heat exchanger warmed air outlet, said heat exchanger located upstream of the aircraft cargo compartment air duct.
2 more elements
Dependencies are inferred from the claim text.