Abstract Last decade has seen tremendous progress in the development of nanoparticle dispersion based volumetrically absorbing solar thermal systems. However, for these systems to compete with their surface absorption counterparts, it is imperative to reach an optimum receiver design. Optimization in turn necessitates accurate modeling of highly coupled transport phenomena involved in these systems. The present work represents a significant step ahead in this direction, wherein, a comprehensive and mechanistic theoretical framework is developed which is robust enough to account for coupled transport phenomena and orders of magnitude of operating parameters for a host of receiver design configurations. Moreover, equivalent surface absorption based systems are also modeled to provide a comparison between volumetric and surface absorption processes under similar operating conditions. Finally, the present work serves to define optimal performance domains of these solar thermal systems, particularly in the laminar flow regime (100

中文翻译：

---

基于纳米颗粒体积吸收的层流态聚光太阳能热系统的综合建模、模拟和分析

摘要 过去十年，基于纳米粒子分散体的体积吸收太阳能热系统的发展取得了巨大进展。然而，为了让这些系统与其表面吸收对应物竞争，必须达到最佳接收器设计。优化反过来需要对这些系统中涉及的高度耦合的传输现象进行准确建模。目前的工作代表了朝着这个方向迈出的重要一步，其中，开发了一个全面和机械的理论框架，该框架足够强大，可以解释耦合传输现象和大量接收器设计配置的工作参数数量级。而且，还对基于等效表面吸收的系统进行建模，以在类似操作条件下提供体积和表面吸收过程之间的比较。最后，目前的工作用于定义这些太阳能热系统的最佳性能域，特别是在层流状态 (100