As a result of the goal of reducing carbon footprint and the goal of reducing the volume of non-recyclable waste streams, fuels that use different types of waste as a primary raw material are being intensively developed for energy purposes. This type of fuel often exhibits chemical-physical properties that do not allow direct use in internal combustion systems, the limiting parameter is in many cases the viscosity, which must be low enough to allow proper atomization of fuel. The thesis presents the design of a system for supplying highly viscous fuels in an internal combustion engine and continuous combustion devices for the needs of combustion analyses. The system enables preheating and operation of the test facility with conventional fuel, change of fuel during operation and heating of alternative fuel, and also enables the outflow of test fuel after the performed measurements. The task calculates the necessary heat flows for heating and protection of the system against overheating, the topology is designed with all the necessary measuring elements (fuel mass flow, temperatures at characteristic places). The calculation of the required power of the heating elements takes into account the thermal inertia of the system and gives the appropriate parameters of the control system based on pulse width modulation to regulate the power of the heating elements. The system is designed and ready to perform experimental analysis.
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