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Vapor Compression Distillation technology for phase change recovery of water from wastewater has evolved as a technically mature and energy efficient approach for meeting the National Aeronautics and Space Administration mission needs/goals for the near-term Space Station Freedom Program and future advanced missions such as a Lunar Base and Mars exploration. Water is essential not only for the survival of humans in space, but also for efficient and economical operation for various space stations. Life Systems, Inc., in conjunction with the National Aeronautics and Space Administration, has been developing the Vapor Compression Distillation Phase Change Concept. During the development of this technology over the past 17 years an extensive engineering and scientific database has been assembled.