Cabin wall heat transfer experiment simulation device for passenger plane in cruising state

Abstract

The invention discloses a cabin wall heat transfer experiment simulation device for a passenger plane in a cruise state. The device comprises a low-pressure environment cabin which is provided with apressure reduction system, an air conditioner and an air blowing system, and is used for simulating the pressure and air speed environment outside the cabin in the cruise state of the airplane; a pressurization environment cabin is arranged in the low-pressure environment cabin and used for simulating an aircraft cockpit; the pressurization environment cabin is provided with a pressurization system, a heating box and a fan, and used for simulating the pressurization of an aircraft cockpit environment control system so that the pressure and temperature of the cockpit can reach a human body comfort state, and can be also used for simulating human body heat dissipation and creating cockpit airflow flowing; the pressurization environment cabin is provided with a cabin wall heat transfer test system and a data acquisition instrument. With the cabin wall heat transfer experiment simulation device for the passenger plane in the cruise state of the invention adopted, a cabin wall convective heat transfer coefficient, a cabin wall heat transfer amount and a cabin wall temperature under a low-pressure condition can be accurately tested; and the obtained experimental data can be used for optimization design of environment control systems in cabins, and reliable boundary conditions and high-quality comparison verification experimental data can be provided for computational fluid dynamics (CFD) numerical calculation of cabin airflow.

Description

technical field [0001] The invention relates to experimental research on thermal environment of passenger aircraft cockpit, in particular to the heat transfer characteristics of cockpit bulkhead, and is a simulation device for bulkhead heat transfer experiment in the cruising state of passenger aircraft. Background technique [0002] With the rapid development of my country's economy, people's choice of transportation for travel is more inclined to the convenient and fast high-speed rail and plane. In 2016, 490 million people traveled by air in China, which increased to 660 million in 2019. At the same time, the thermal comfort of the aircraft cabin environment has also attracted widespread attention. [0003] The environment in which the aircraft is in the cruising state is very harsh. When the aircraft is at an altitude of 10,000 meters, the atmospheric pressure outside the cabin will be as low as 0.2atm. In order to ensure the comfort and safety of passengers, the cabin...

AI Technical Summary

Problems solved by technology

[0004] However, because it is impossible to carry out relevant flow field and temperature field experiments in the real aircraft in the cruising state; the 1:1 simulated cockpit is large in size, the cost of controlling the pressure in the cabin is high, and the experiment is extremely difficult. Almost all experimental measurements of the thermal environment in the cabin are It is to build an experimental platform on the ground, and the pressure in the cabin is 1atm

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