Stanovení tepelné účinnosti parního kotle při spalování směsi průmyslových plynů

Abstract

This thesis deals with the determination of the thermal efficiency of the steam boiler burning a mixture of industrial gases. This includes determining the thermal efficiency of the boiler both direct and indirect method. To calculate the efficiency of a steam boiler must be designed heat technical data, which can be determined by measuring, calculating from the measured values are given or ČSN. To determine the efficiency is important to know the tape and amount of combustion gas or a mixture of combustion gases. The paper evaluates the results of the combustion of natural gas, but also heating a mixture of industrial gases. High efficiency was achieved in a separate combustion gas and the efficiency of 95,65 %. The efficiancy was achieved at lower boiler output. When comparing burning a mixture of fuel gases was achieved the same performance and combustion heating a mixture of four gases achieved higher efficiency than the combustion of the three gases.