This article is devoted to the problem of energy generation from the non-processed part of waste, both industrial and municipal. Some aspects of use of gasification products of organic-containing wastes and landfill gas are considered. The presented comparison shows that landfill and generator gases can be attributed to the group of medium-calorific gases used both as boiler fuel and for production of liquid synthetic fuels. It should also be noted that generator and landfill gases contain a significant proportion of inert gases (from 22% to 60%), which is significantly higher than that of natural gases. Inert gases in landfill and generator gases are different. In the first case it is CO2, in the second it is N2. Unlike solid fuel boilers, in a boiler designed to burn gaseous fuels (natural gas), synthetic gases can also be burned without significant additional reconstruction. Due to the difference in gas calorific value, the ratio of fuel to air (with a constant coefficient of excess air α) will change to obtain the necessary thermal power, however, the volume of flue gases will differ slightly. Therefore, the flow sections of the boiler furnace can be saved.
Heat transfer research is one of key topics for internal combustion engine development. However, heat transfer study is a challenging task due to high value and rapid change in temperature and heat flux inside the combustion chamber. In this paper, experimental study is presented with implementation of heterogeneous gradient heat flux sensors. Heat flux was measured by a probe and at several points of a firedeck. Heat fraction to a firedeck was calculated at various engine speeds. The heat transfer coefficient at investigated points is calculated. Comparison with other studies is provided.
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