Hierarchical numbering-up of modular reactors: A multi-objective optimization approach

Effects of Stack Structure and Heat Loss on the Stability and Efficiency of Steam-Methanol Reforming Microreactors for Hydrogen Production

“…For example, the reactor systems may be too expensive to operate, too maintenance-hungry, and too complex. , A critical issue in such stacked reactor systems is how the throughput rate varies with the number of channels. In these systems, the residence time of the process stream is relatively lower, , and the rate of heat supply to the endothermic reaction zone is relatively higher. , The construction of these stacked reactor systems is essentially similar, , and thus, the linear scale-out assumption is often made that the output level varies linearly with the channel number. , However, this assumption limits the applicability of the models to practical situations, since the abrupt extinction of the process reaction may occur due to the effect of exterior heat loss.…”

“…27,28 The construction of these stacked reactor systems is essentially similar, 29,30 and thus, the linear scale-out assumption is often made that the output level varies linearly with the channel number. 31,32 However, this assumption limits the applicability of the models to practical situations, since the abrupt extinction of the process reaction may occur due to the effect of exterior heat loss.…”

Multi‐objective design optimization of microreactor arrays for distributed renewable energy conversion: A case study

“…Both experimental and simulation results indicate that improving the flow uniformity is often done at the expense of sacrificing the equipment compactness. 28 On an economic perspective, measures taken to reduce the cost of equipment usually increase the cost of energy consumption during operation simultaneously. The lesson is that many design objectives met in microreactor integration, for example, reaction performance, equipment compactness, equipment cost, and operational cost are intrinsically conflicting-it is impossible to obtain an exclusive optimal design solution.…”

“…Zhang et al 31 investigated the thermal performance of fixed‐bed reactors for the reverse water‐gas shift (RWGS) reaction and obtained a set of process conditions that optimizes the reaction performance and temperature distribution. In our previous work, 28 multi‐objective design optimization has been successfully conducted for integration of modular devices with flow uniformity, device compactness, and energy consumption taken as the optimization objectives. Relatively balanced design were obtained without considering heat transfer and chemical reactions.…”

“…Both experimental and simulation results indicate that improving the flow uniformity is often done at the expense of sacrificing the equipment compactness 28 . On an economic perspective, measures taken to reduce the cost of equipment usually increase the cost of energy consumption during operation simultaneously.…”