Affiliation:
1. Department of Mechanical Engineering, The Pennsylvania State University, University Park, PA 16802
Abstract
A theoretical analysis of the interaction of volumetric absorption of concentrated solar radiation and convection in a two-dimensional, axisymmetric absorption chamber is presented. Previous analytical works on the absorption of the radiant energy in such chambers have employed one-dimensional models to show that very high temperatures and therefore high thermodynamic efficiencies are achievable. In this work, the effects of using collimated as opposed to isotropic irradiation on the absorption efficiency are investigated for the one-dimensional case, and the effects of employing a more realistic two-dimensional model on the absorption efficiency are studied. The model is based on the assumptions that the velocity profile is uniform and that conduction within the fluid is negligible compared to convective and radiative transports of energy. Several parameter surveys are performed and compared with the results of previous one-dimensional models.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
1. Effective Radiative Properties of a Cylinder Array;Journal of Heat Transfer;2001-08-20
2. Radiative Transport in Anisotropic Media;Fluid Mechanics and the Environment: Dynamical Approaches;2001
3. Heat transfer — a review of 1989 literature;International Journal of Heat and Mass Transfer;1990-11