An Energy-Efficient, Ventless Tumbler-Dryer

Navy ships need improved laundry dryers that use less energy and operate without air vents. This eliminates the need for very long exhaust ductwork and reduces fire hazards. We propose to develop a reliable, compact, tumble dryer that employs an innovative water separation process that is energy-efficient and does not require an exhaust vent. The water removed in this process is in the liquid phase and thus can be easily drained away, eliminating the need for an air vent. The proposed dryer uses less than half the energy consumed by a conventional dryer. In Phase I, we will prove feasibility by demonstrating the efficient operation of the water separation system, obtaining data to show its water removal rate and power consumption, and designing a ventless dryer prototype. In Phase II, we will build, demonstrate, and deliver a complete prototype ventless dryer to the Navy.