Analysis and test of dynamic temperature in civil aircraft compartment

Based on the aircraft compartment dynamic heat balance principle, use Matlab/Simulink to calculate dynamic temperature for aircraft compartment, taking into account factors of aircraft structure thermal load, solar radiation, personnel thermal load, airborne electronic equipment thermal load, interior/seats heat capacity, heat and cooling performance of air conditioning system. Pull down and Pull up tests are conducted on a civil aircraft under extreme weather conditions. The calculated results of compartment dynamic temperature are in good agreement with test results, which shows that analysis methods are reasonable and feasible. The calculation and test results both indicate that the dynamic performances of the aircraft compartment temperature meets the design requirements, providing technical guidance and date support for the dynamic performance design and airworthiness certification of civil aircraft air conditioning systems.