Cross-flow three-way ammonia-to-air heat exchanger for air conditioning applications on an aircraft
AssigneeHamilton Sundstrand Corporation
InventorsViktor Kilchyk, Debabrata Pal
Life of this patent
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Abstract
An aircraft system for pre-heating ammonia that flows toward an ammonia fuel cell, the system having: an ammonia-to-air heat exchanger, having: a first section through which RAM air flows, a second section through which the ammonia flows and a third section between the first and second sections which includes a solvent, wherein heat energy is transferred from the RAM air to the ammonia via the solvent; and an ammonia sensor that provides an alert when ammonia is detected in the solvent.
Claims16
An aircraft system for pre-heating ammonia that flows toward an ammonia fuel cell, the system comprising:
- an ammonia-to-air heat exchanger, having:
- a first section through which RAM air flows, a second section through which the ammonia flows and a third section between the first and second sections which includes a solvent, wherein heat energy is transferred from the RAM air to the ammonia via the solvent;
- and
- an ammonia sensor that provides an alert when ammonia is detected in the solvent.
An aircraft system, comprising:
- a vapor compression cycle (VCS), that includes ammonia as the working fluid, wherein the VCS includes an evaporator;
- a heat exchanger coupled to the evaporator, wherein RAM air flows through the heat exchanger and is cooled by the evaporator.
- a secondary system air duct, coupled to the heat exchanger, that receives the RAM air cooled by the evaporator.
Dependencies are inferred from the claim text.