| 摘要 |
An air cycle environmental control system regenerates energy through the provision of a reheater condenser (19) that condenses water vapor from compressed air. The condensed water vapor is extracted by a water extractor (21) to produce dehumidified air. A subcooler heat exchanger (23) can receive the dehumidified air (20) for further cooling, but while causing a minimal amount of condensation. A subcooled air (24) from the subcooler heat exchanger (23) is then reheated in the reheater condenser (19), with a resulting reheated air (25) having absorbed a heat of sensible cooling and heat of condensation. The reheated air (25) then passes into a first turbine (26) which recovers a heat of sensible cooling and heat of condensation. The first turbine (26) expands the air, which then flows into the subcooler heat exchanger (23) and into a second turbine (32) for additional recovery of a heat of sensible cooling and heat of condensation. The second turbine (32) cools the air by expansion for delivery to an enclosure to be conditioned.
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