The Salt Water Solar Pond Experiment And Numerical Simulation Study

A salt-gradient solar pond (SGSP) is an excellent design for energy collection as well as for long-term energy storage, and it is also an active topic in the new energy source application domain. The seawater solar pond model is a development and innovation from the traditional SGSP, with the character of lower cost, simpler operation and more practical.This thesis has carried out the following working according to the seawater non-convection solar pond:1. Building up the model of seawater solar pond, then the approximate calculation about available solar radiation, the theory calculation of temperature and salt gradient distribution in the solar pond, and the analysis of the thermal stability, energy balance and efficiency have been emphasized.2. Completing the construction, filling and salt gradient maintenance of the pond. With the chronic and simple measurements, quantity of data about temperature and salt concentration distribution has been acquired.3. Using finite difference approach to simulate the transient performance of the solar pond, and study the effect of each layer's thickness and heat extraction on the temperature distribution, and the evolvement of the temperature profile.4. Discussing the effect of brine's radiation transmission on the thermal performance of the solar pond. Comparisons were made among three typical models for radiation transmission, and a numerical simulation was performed to study the effect of the radiation transmission on the temperature profile.The conclusion acquired from this thesis included theory model, experiment and numerical simulation. The temperature and concentration distribution, each typical parameter's effect and the radiation transmission's effect have also been concluded.