Micro Gas Turbine Engines

While researching gas turbines, I came across a fascinating new area in high-tech R&D that bills itself as "micro turbines".  These are gas turbines on the order of 1 cm in size and turn at 500,000 to 1,000,000 RPM and higher.  Here are a few images from the links included below.

 

This combustion chamber only measures 20 mm in diameter and is 2.7 mm thick.
Supplied by a hydrogen-air mixture, it produces a power of up to 1200 W.



How about a 50-100 W gas turbine generator with

fuel tank the size of a pack of playing cards!

Here is a list of micro turbine links.  Some are news posts, but most are journal published, research papers.

Engine on a Chip

Micro-turbines, Maxi-difficulties

PowerMEMS Project - Microsystems for power generation

ULTRA MICRO GAS TURBINE GENERATOR

A SILICON-BASED MICRO GAS TURBINE ENGINE FOR POWER GENERATION (PDF)

 

DEVELOPMENT OF MICROMACHINE GAS TURBINES AT TOHOKU UNIVERSITY (PDF)

MILLIMETER-SCALE, MEMS GAS TURBINE ENGINES (PDF)

POWER MEMS AND MICROENGINES (PDF)

THE USE OF MICRO TURBINE GENERATORS IN HYBRID ELECTRIC VEHICLES (PDF)

DEVELOPMENT OF MICROMACHINE GAS TURBINE FOR PORTABLE POWER GENERATION (PDF)

ULTRA-HIGH-ENERGY-DENSITY CONVERTER FOR PORTABLE POWER (PDF)

POWER ELECTRONICS INTERFACE FOR A 100 W, 500000 RPM, GAS TURBINE PORTABLE POWER UNIT (PDF)

AN ULTRA-HIGH-SPEED, 500000 RPM 1 kW ELECTRIC DRIVE SYSTEM (PDF)

MICROFABRICATED SILICON CARBIDE MICROENGINE STRUCTURES (PDF)

HIGH POWER DENSITY SILICON COMBUSTION SYSTEMS FOR MICRO GAS TURBINE ENGINES (PDF)