Abstract
The problem of turbine microjet engine operation is related to flight conditions of unmanned aircraft. These flights are often performed at low altitudes, where, in autumn and winter conditions, the air can be characterized by high humidity and low temperature. Such operating conditions may cause freezing the turbine engine inlet. In particular, this problem may be related to microengines, which most often are not equipped with a de-icing installation. Frosting of the inlet violates the air flow conditions at the engine inlet and may cause unstable operation and even outages, which eventually may lead to a loss of aircraft’s stability and breakdown. Therefore, an attempt was made to evaluate the changes in operational parameters of the turbine microjet engine under conditions leading to the freezing of the inlet. The engine test was performed in stationary conditions and the analysis of the obtained results are presented in this article.
Highlights
The process of converting the state of water contained by the air in the form of steam into a solid form accumulating on the elements of the aircraft structure during flight is called icing
Icing depends on many factors and occurs under favorable weather conditions such as high humidity and low temperature
The second stage of the study consisted of evaluating changes in engine operating parameters caused by changes in ambient conditions by spraying water in the vicinity of the engine inlet
Summary
Evaluation of turbine microjet engine operating parameters in conditions conducive to inlet freezing. Poznan University of Technology, Faculty of Machines and Transport, ul. Polish Naval University, Faculty of Mechanical and Electrical Engineering, ul.
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