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Retrofit of absorption heat pumps into manufacturing processes: Implementation guidelines
Author(s) -
Bakhtiari Bahador,
Fradette Louis,
Legros Robert,
Paris Jean
Publication year - 2010
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.20360
Subject(s) - process integration , pinch analysis , analytic hierarchy process , process (computing) , computer science , work (physics) , process engineering , gear pump , heat pump , systems engineering , manufacturing engineering , mechanical engineering , engineering , operations research , heat exchanger , operating system
Integration of absorption heat pumps (AHP) in industrial processes has not yet been fully exploited due to the lack of clear implementation guidelines for this technology. In this work, a systematic methodology for the integration of AHPs in a process has been developed and is presented. Guidelines are formulated for the proper selection of heat sources and sinks that will maximise the benefit derived from heat pumping while respecting process constraints and operating requirements of the AHP. The principles of AHP operation and its efficient process integration are thus described. The methodology relies on data extracted from a Pinch Analysis of the plant. The advantages and outputs of the methodology are illustrated using an AHP implementation in a Kraft pulping process. Two realistic implementation options are presented along with their detailed design and preliminary economic evaluation.