A Study for Generating Power on Operating Parameters of Powerpack Utilizing Linear Engine 2012-32-0061
The research shows the experimental results for a free piston linear engine according to operation conditions of the linear engine and the structure of linear generator for generating electric power. The powerpack used in this paper consists of the two-stroke free piston linear engine, linear generators and air compressors. Each parameter of fuel input heat, equivalence ratio, spark timing delay, electrical resistance and air gap length were set up to identify the combustion characteristics and to examine the performance of linear engine. The linear engine was fueled with propane. In the course of all linear engine operations, intake air was inputted under the wide open throttle state. Air and fuel mass flow rate were varied by using mass flow controller and these were premixed by pre-mixing device. Subsequently, pre-mixture was directly supplied into each cylinder. Through the experiments, some facts that the generating power was induced differently at each operation conditions of linear engine were confirmed. In the linear engine, ultimately, piston frequency, velocity and combustion characteristics were different at each operating conditions. As a result, the piston frequency was and maximum generating power was 57.2 Hz and 111.3 W under the operating condition of 1.0 of equivalency ratio, 1.5 ms of spark timing delay, 30 Ω of electric resistance and 1.0 mm of air gap length, respectively.
Citation: Oh, Y., Lim, O., Kim, G., and Iida, N., "A Study for Generating Power on Operating Parameters of Powerpack Utilizing Linear Engine," SAE Technical Paper 2012-32-0061, 2012, https://doi.org/10.4271/2012-32-0061. Download Citation
Author(s):
Yongil Oh, Ocktaeck Lim, Gangchul Kim, Norimasa Iida
Affiliated:
University of Ulsan, Korea Institute of Energy Research, Keio University
Pages: 9
Event:
2012 Small Engine Technology Conference & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Combustion and combustion processes
Pistons
Two stroke engines
Conductivity
Electric power
Engine cylinders
Throttles
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »