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Abstract

Steam recovery in industrial processing typically requires separate units for condensate recovery, water heating and fluid pumping, each adding capital cost and mechanical complexity. This disclosure describes a uni-body steam recovery engine (“apparatus”) that integrates these three functions — condensate recovery, water heating and hydraulic pumping — within a single structural housing. Hydraulic pumping is achieved without a dedicated mechanical pump by using the pressure differential of the recovered steam to displace condensate and working liquid through the system. The structural arrangement, custom hardware components and control methods governing the cyclic operation of the apparatus are disclosed herein. A proof-of-concept unit was constructed and tested using a retrofitted 3 kW steam generator.

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This work is licensed under a Creative Commons Attribution 4.0 License.

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