Evaluation of solar water heating systems

Abstract The paper addresses itself to stochastic modeling of solar water heating systems. Solar water heating systems will be modelled in order to estimate the percentage of energy contributed by the sum to the total required load by system users. The major tool in developing the model is Chapman-Kolmogorov equation. The model takes into consideration the effect of randomness of insolation, demand for hot water, and the sequence in which they occur on the evaluation of the system performance.