Simulation of the secondary net of heat distribution systems

This paper presents simulation model and results obtained during the practical experiments on secondary net of distribution heating system. It covers systems for urban location, typically housing estate or groups of family houses. Such systems deal with distribution between heat exchanger and individual door stations. The experiment was based on similar day identification and subsequent prediction of recommendations for system control. Predicted values were applied in real control process and later obtained results were compared with predicted courses and analyzed causes of all differences. To identify deviations caused by imperfection of the model and methods and separate them from inaccuracy of weather forecasts the simulation were repeated with ideal course – weather forecast were replaced with measured course. Key-Words: secondary distribution net, heat, identification, modeling, prediction