Optimization of heat source with combined production of heat and electric energy

This paper deals with the continuation and improvement of non-linear model which was published in paper (Balate et al., 2006b). The paper describes access to solving optimisation of operation of heat source with combined production of heat and power by methods of non-linear programming

Load distribution of heat source in production of heat and electricity

The economic control of the subsystem of heat energy production consists both in economical distribution of load between individual cooperating sources inclusive of economical distribution of load between individual production units inside the sources, for so called operational variant in the source, and further also in determining suitable operational structure of cooperating sources and in determining suitable economically based starting and stopping production units or possibly also the complete sources. The aim of the paper is description one of solution of optimal distribution of load between cooperating production units in the source of heat to optimization of production of heat and electricity. It is created of non-linear mathematical model of heat source for production of heat and electricity. It was used historical and modified data, from the heat and power plant Brno, to creation the mathematical model. The mathematical model is used to determination of load distribution of individual production units and further to determination of the so called dependent and independent electricity that is produced by individual turbo-generator. Described problem of optimization is solved via chosen method of optimization

Possible way of control of heat output in hotwater piping system of district heating

The paper deals with the description possible method of control of a heat output in district heating systems. This control method is called qualitative-quantitative control method of heat output with utilization of prediction of daily diagram of heat supply in hot-water piping systems of district heating. The control method consists in simultaneous and continuous acting of two variables influencing the transferred heat output and in using the prediction of required heat output in a specific locality. The control method should enable elimination of the influence of transport delay between the heat source and heat consumption of individual relatively concentrated consumers. Transport delay can be in the range up to several hours and depends on the length of feeder piping, which can be up to several kilometers, and on the flow speed of heat transfer medium. © 2015, North Atlantic University Union. All rights reserved

Optimization of load of heat source described by nonlinear mathematical model

This paper shows the method of solution of load distribution between separate production units of heat source for optimization of combined production of heat and electric energy. Heat source is described by non-linear mathematical model. It was created from historical and modified data which were gained from the heating plant Brno. The mathematical model is used to determination of load distribution between separate production units and to determination of electric output produced by separate turbines. This non-linear optimizing problem is solved by means of solution of certain linear optimizing problem by using simplex method

Optimal distribution of load between cooperating production units with combined production of heat and electric energy

This paper deals with one of the possible accesses to solving optimization of the operation of heat source with combined production of heat and electric energy by method of a non-linear programming. In the paper it is described the creation of non-linear mathematical model of combined heat and electric energy production plant