Optimal Microchannel Planar Reactor as a Switchable Infrared Absorber
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Optimal Microchannel Planar Reactor as a Switchable Infrared Absorber Mark E. Alston1 1 University of Salford, Manchester, UK. ABSTRACT This paper will propose methods to use leaf vasculature formations to advance a material to act as an infrared block. The research shows the use of microfluidics based flows to direct the structural assembly of a polymer into a thermally functional material. To manage IR radiation stop-band to lower a polymer device phase transition temperature. This paper will determine this functionality by hierarchical multi microchannel network scaling, to regulate laminar flow rate by analysis as a resistor circuit. Nature uses vasculature formations to modulate irradiance absorption by laminar fluidic flow, for dehydration and autonomous self-healing surfaces as a photoactive system. This paper will focus specifically on pressure drop characterization, as a method of regulating fluidic flow. This approach will ultimately lead to desired morphology, in a functional material to enhance its ability to capture and store energy. The research demonstrates a resistor conduit network can define flow target resistance, that is determined by iterative procedure and validated by CFD. This algorithm approach, which generates multi microchannel optimization, is achieved through pressure equalization in diminishing flow pressure variation. This is functionality significant in achieving a flow parabolic profile, for a fully developed flow rate within conduit networks. Using precise hydrodynamics is the mechanism for thermal material characterization to act as a switchable IR absorber. This absorber uses switching of water flow as a thermal switching medium to regulate heat transport flow. The paper will define a microfluidic network as a resistor to enhance the visible transmission and solar modulation properties by microfluidics for transition temperature decrease. INTRODUCTION Microfluidic approach can direct the assembly of a thermally functional material in advancement of energy capture and storage. Using precise hydrodynamic control of a planar microfluidic platform is significant to attain uniform solar radiation adsorption. This characterization in optimal fluidic transport flow is present in natural networks, leaf venation (1,2,3). Leaves use micro capillaries vasculature for the transportation of nutrients, carbon dioxide for photosynthetic mechanisms (4). These fractal structures that are driven by maximizing low dissipation rate for steady state uniform flow, defined by resistance. Hydraulic pressure driven flows can be determined by electrical circuit theory, as a series of resistors in parallel, equal to the sum of total number of channels N (5). Leaves use negative pressure to induce flow that scales linearly in channel networks for fluidic transport that is defined by hierarchical branch network scaling (6). Each channel (vein succession sequence) is aligned to a specific formation order within a closed loop network (7,8). Microfluidics devices controlled steady state flow within rectangular c
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