67709058 © 12ee12 | Dreamstime.com
dreamstime_l_67709058

Tesla-Valve-inspired Injection Manifold Design Could Improve Performance of Rotating Detonation Engines

Feb. 28, 2024
Researchers are testing an injection manifold design that prevents the reversal of fuel and oxidizer flows.

Researchers at Purdue University's College of Engineering are conducting tests on a patented Tesla valve-inspired injection manifold design to improve the efficiency of rotating detonation engines (RDEs) used in jet and rocket propulsion.

RDEs offer higher efficiency by converting chemical energy into thrust at supersonic speeds, but they face stability issues, such as the reversal of fuel and oxidizer flows, which can lead to power loss and system damage, according to a press release.

READ MORE: R&D Spotlight: Inventing Wearable Sensors that Monitor Uric Acid in Sweat

Li Qiao, a professor in Purdue University’s College of Engineering, says that RDEs convert chemical energy into thrust, with a flame traveling through the engine at supersonic speed, which can be 10 times faster than in a traditional engine.

“RDEs are much more efficient than traditional engines by consuming less fuel and achieving high power of thrust in much less time,” Qiao said. “An RDE has no moving parts—turbines or compressors—which makes it less complex and less expensive to manufacture.”

The new injection manifold design, based on Tesla valve principles, aims to sustain stable shock waves in RDEs by preventing reverse flow, enhancing thrust generation. Initial tests show promising results with minimal flow returning to the inlet, highlighting the potential of this innovation for commercial and defense engine applications.

The design has been patented and is open for further collaboration with industry partners and government agencies to advance its integration into existing engine systems.

READ MORE: Purdue Researchers Develop New Approach to Grow Thin Electronics Films

Sponsored Recommendations

From concept to consumption: Optimizing success in food and beverage

April 9, 2024
Identifying opportunities and solutions for plant floor optimization has never been easier. Download our visual guide to quickly and efficiently pinpoint areas for operational...

A closer look at modern design considerations for food and beverage

April 9, 2024
With new and changing safety and hygiene regulations at top of mind, its easy to understand how other crucial aspects of machine design can get pushed aside. Our whitepaper explores...

Cybersecurity and the Medical Manufacturing Industry

April 9, 2024
Learn about medical manufacturing cybersecurity risks, costs, and threats as well as effective cybersecurity strategies and essential solutions.

Condition Monitoring for Energy and Utilities Assets

April 9, 2024
Condition monitoring is an essential element of asset management in the energy and utilities industry. The American oil and gas, water and wastewater, and electrical grid sectors...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!