Unable to log in or get member pricing? Having trouble changing your password?

Please review our Frequently Asked Questions for complete information on these and other common situations.
 

Vertical Flight Library & Store

Fundamental Understanding of Hybrid-Electric Power

Matt Arace, Anubhav Datta, University of Maryland

https://doi.org/10.4050/F-0079-2023-18061

Abstract:
A 3.43 kW 4-stroke piston engine is coupled to a generator and a rectifier to acquire basic data on power generation for hybrid-electric aircraft. Isolated engine, generator, and coupled engine-generator efficiencies are characterized. A semi-empirical 4-stroke engine model is developed. The model is calibrated with the test data. It is found that steady-state performance of a 4-stroke engine can be well predicted. The pumping power required for intake and exhaust of each cycle is a key factor that separates 4-stroke from 2-stroke engines but it can be accurately modeled. The key conclusions are that the specific fuel consumption is a strong function of output current and voltage separately, not power alone, and isolated engine specific fuel consumption and generator efficiency are not adequate metrics on their own. The designer must understand and model the integrated system. The semi-empirical model developed here for fuel consumption may be used to guide the design of future small hybrid-electric VTOL uncrewed aerial vehicles.


Fundamental Understanding of Hybrid-Electric Power

  • Presented at Forum 79 - Best Paper for this session
  • 10 pages
  • SKU # : F-0079-2023-18061
  • December 2023 Paper of the Month
    Electric VTOL

  • Your Price : $30.00
  • Join or log in to receive the member price of $15.00!


VFS member?
Don't add this to your cart just yet!
Be sure to log in first to receive the member price of $15.00!

 
Add To Cart

Add to Wish List

Reward Value:
(60) Member Points

Fundamental Understanding of Hybrid-Electric Power

Authors / Details:
Matt Arace, Anubhav Datta, University of Maryland