A two-dimensional mathematical model is developed to analyze the
thermal behavior of salt gradient solar ponds. This model can be
used to evaluate the suitability of solar ponds for space heating
and power generation as well as the thermal storage capability of
the ground. The solar pond model adopted consists of an upper
nonconvective zone and a lower convective zone. This model
incorporates detailed representation of surface and ground heat
losses. Solutions to the energy equation are obtained for both the
pond and the ground. The energy equation for the lower convective
zone is used to determine the energy that can be extracted from the
pond.