Recently, China has independently developed the first manned hydrogen fuel cell testing machine in Shenyang successful test flight. The aircraft flight height of 320 meters, full zero pollution emissions. At this point, China has become the United States, Germany, after the third has the technology of the country.
According to reports, the hydrogen fuel cell testing machine by the Dalian Institute of Chemical Physics and Liaoning General Aviation Research Institute jointly developed.
It is in the Liaoning General Aviation Research Institute developed RX1E electric aircraft on the conversion, the use of Dalian Institute of the development of 20 kilowatts of hydrogen fuel cell power supply, with a small capacity auxiliary lithium battery, hydrogen storage tank for 35MPa hydrogen tank .
The aircraft is powered by fuel cells and lithium batteries during take-off and high-rate climb, powered entirely by the fuel cell during the cruise phase, and charged with the lithium battery pack.
According to reports, the study broke through the hydrogen fuel cell lightweight, efficient water and heat management, high reliability airborne power system integration and a number of key technologies.
During the test flight, the output performance, safety, reliability and environmental adaptability of the fuel cell system all met the technical requirements, and showed excellent storage, starting and running performance under -20 ℃ low temperature environment.
Dalian Institute of Chemical Physics is one of the main research units of fuel cell in China. The proton exchange membrane fuel cell research team as early as 2001 on the joint development of relevant units of China's first hydrogen fuel cell electric vehicles.
In recent years, the team has developed a variety of models of aviation proton exchange membrane fuel cell power supply system, to fill the gap in the field of technology in China.
Among them, Ⅰ type system in November 2009 used in China's first fuel cell powered airship, "Zhiyuan No. 1," Ⅱ system in July 2012 used in China's first fuel cell unmanned aerial vehicles, "Thunderbird."
Fuel cell is an efficient and environmentally friendly power generation device. Fuel cell powered aircraft for low noise, zero pollution and long battery life and other significant advantages, as in recent years the international research and development of new energy aircraft hot spots.
The Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS) undertook an RFC in 1997 (AFC is the most successful fuel cell in the aerospace field, using KOH as electrolyte, fuel and oxidant as pure hydrogen and pure oxygen respectively) Research "863" project, the successful development of the 100-watt renewable hydrogen fuel cell prototype system. Based on this, the basic research on the application of integrated regenerative hydrogen fuel cell was carried out.
Aerospace field, the battery is in micro-gravity state, gas-liquid two-phase flow, mass transfer and heat transfer regularities are different. NASA has adopted water management as a key technology for aerospace PEMFCs.
Beijing University of Technology has carried out under the micro-gravity of the fuel cell under the conditions of the thermal physics of the relevant research and found that under different gravity conditions, methanol fuel cell anode gas-liquid two-phase flow and battery performance are different.
Boeing on April 3, 2008 successfully test hydrogen fuel cell as a power source of a small aircraft. Boeing said this is the first time in the history of the world's aviation, indicating that the aviation industry in the future more environmentally friendly. But Boeing acknowledged that this technology is unlikely to provide a major driving force for large passenger aircraft.
Climb to 1000 meters above sea level cruise altitude, the aircraft cut off the traditional battery power, rely on hydrogen fuel cells to provide power. The plane flew at a height of 1000 meters for about 20 minutes at a speed of about 100 kilometers per hour. This technology is significant for Boeing, but also for the aviation industry's future "full of green hope."