Abstract
Previous results from a stabiliy analysis of natural convection in a fluid-saturated porous medium with externally imposed downward flow of the fluid and distributed internal heat generation are used in this study for a preliminary design of a saltless solar pond. The pond is filled with a porous medium which provides better stability. Downward flow of water is imposed to allow the absorbed solar radiation, dependent upon the extinction coefficient of the water-saturated porous medium, to be carried down to the bottom of the solar pond form whence warm water is conveyed to the point of use. The downward velocities used have small magnitudes to allow useful bottom temperatures to be obtained. An analytical study is performed to determine the maximum temperature that can be obtained at the bottom of the saltless solar pond which resulted in a relationship involving the describing parameters including internal and external Rayleigh numbers, extinction coefficient, and Peclet number of the imposed downward flow. Results from this analytical study are combined with results from the stability analysis and a preliminary design procedure is developed to assess the feasibility of the proposed saltless solar pond.
| Original language | English |
|---|---|
| Title of host publication | ASME-JSES-JSME International Solar Energy Conference |
| Pages | 51-57 |
| Number of pages | 7 |
| State | Published - 1991 |
| Event | Solar Engineering 1991 presented at the Second ASME-JSES-JSME International Solar Energy Conference - Reno, NV, USA Duration: 17 Mar 1991 → 22 Mar 1991 |
Conference
| Conference | Solar Engineering 1991 presented at the Second ASME-JSES-JSME International Solar Energy Conference |
|---|---|
| City | Reno, NV, USA |
| Period | 17/03/91 → 22/03/91 |