Study of a vaporizing water micro-thruster

Citation
Xy. Ye et al., Study of a vaporizing water micro-thruster, SENS ACTU-A, 89(1-2), 2001, pp. 159-165
Citations number
6
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Instrumentation & Measurement
Journal title
SENSORS AND ACTUATORS A-PHYSICAL
ISSN journal
0924-4247 → ACNP
Volume
89
Issue
1-2
Year of publication
2001
Pages
159 - 165
Database
ISI
SICI code
0924-4247(20010320)89:1-2<159:SOAVWM>2.0.ZU;2-N
Abstract
Vaporizing water micro-thrusters are fabricated and tested. A single micro- thruster fabricated using MEMS technology consists of a micro-resistor, a v aporizing chamber, a nozzle, a propellant inlet and a micro channel. The wa ter propellant is fed into the thruster from a propellant tank by capillary force and pressure. The micro-thruster is designed to operate in pulse mod e. During each period, an electric pulse is applied to the micro-resistor t o heat the water in the chamber to vaporize it into high-pressure gas. A th rust is then produced as the gas exits through the nozzle, Test results sho w that for a single micro-thruster with pulse power of 30 W. the total impu lse produced in a second is more than 0.2 x 10(-6) N s. (C) 2001 Elsevier S cience B.V. All rights reserved.