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Filtering by: Subject Thermal desorption Subject Microfluidics

An experimental study of co-flow ammonia-water desorption in an oil-heated, microscale, fractal-like branching heat exchanger

Creator:

Mouchka, Gregory A.

Abstract:

An experimental study was performed in which an ammonia-water solution was desorbed within a branching fractal-like microchannel array. The solution entered in the center of a disk, and flowed out radially until discharging in to a gravity-driven separation chamber. Heat was added to the ammonia-water through a thin wall, above...

Resource Type:

Masters Thesis

Full Text:

Study of Co-flow Ammonia-water Desorption in an Oil- heated, Microscale, Fractal-like Branching Heat
Flow boiling of lithium bromide-water solution in microchannels, with application to desorption

Creator:

Fackrell, Kurt

Abstract:

Recent studies of flow boiling within microchannels have shown high heat fluxes, leading to successful design and testing of compact heat exchangers, cooling systems for electronics and other high efficiency, miniature components. An experimental study of flow boiling of a concentrated salt solution in microchannels is presented. Experiments examined flow...

Resource Type:

Masters Thesis

Full Text:

. Title: Flow Boiling of Lithium Bromide-Water Solution in Microchannels, with Application to Desorption
Proportional integral derivative control of an oil-heated fractal-like branching microchannel desorber

Creator:

Davis, Keith R.

Abstract:

A PID controller was designed to control the performance of an oil-heated fractal-like branching microchannel desorber for use in an ammonia-absorption refrigeration system. Both the amount and concentration of ammonia refrigerant generated at the desorber can be controlled by choosing the rectified circulation ratio as the controlled variable in a...

Resource Type:

Masters Thesis

Full Text:

dependent on thermal operating conditions [13]. Since cycle COP is maximized when the heat of desorption