국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	SparkJet Efficiency
저자	Golbabaei-Asl, Mona;; Knight, Doyle;; Anderson, Kellie;; Wilkinson, Stephen
Keyword	CAPACITANCE;; ELECTRIC SPARKS;; IDEAL GAS;; LASERS;; MATHEMATICAL MODELS;; PENDULUMS;; THERMODYNAMIC EFFICIENCY
URL	http://hdl.handle.net/2060/20130003316
보고서번호	AIAA Paper 2013-0928
발행년도	2013
출처	NTRS (NASA Technical Report Server)
ABSTRACT	A novel method for determining the thermal efficiency of the SparkJet is proposed. A SparkJet is attached to the end of a pendulum. The motion of the pendulum subsequent to a single spark discharge is measured using a laser displacement sensor. The measured displacement vs time is compared with the predictions of a theoretical perfect gas model to estimate the fraction of the spark discharge energy which results in heating the gas (i.e., increasing the translational-rotational temperature). The results from multiple runs for different capacitances of c = 3, 5, 10, 20, and 40 micro-F show that the thermal efficiency decreases with higher capacitive discharges.