Excimer laser micromachining by mask projection with half-tone masks has been used to define deep structures with complex surface profiles in cross-linked SU-8 photoresist. A simple algorithm has been developed to derive the required mask transmission function given the material etch characteristics and the desired surface profile. This algorithm has been shown to give reasonable profile accura...

Manufacturing High Aspect Ratio Microturbine by Isothermal Microforging Process Chunju Wang a b c , Chuanjie Wang a b , Debin Shan a b c , Bin Guo a b c & Jie Xu c a National Key Laboratory for Precision Hot Processing of Metals , Harbin , China b School of Materials Science and Engineering , Harbin Institute of Technology , Harbin , China c Key Laboratory of Micro-Systems and Micro-Structures ...

This paper presents dynamic models of distributed generators (DG) and investigates dynamic behaviour of the DG units within a microgrid system. The DG units include micro turbine, fuel cell and the electronically interfaced sources. The voltage source converter is adopted as the electronic interface which is equipped with its controller to maintain stability of the microgrid during small signal...

Utility restructuring, technology evolution, public environmental policy, and expanding power demand are providing the opportunity for microturbines to become important energy resources. In order to investigate the ability of microturbine units in distribution systems, new simulation tools are needed. This paper presents a dynamic models for microturbines. For the purpose of modeling initialy a...

Abstract This research work proposes an integrated gasification plant for simultaneous generation of renewable electricity and drying olive pomace, a thick sludge with moisture content close to 60–70% (wet basis), which constitutes by far the most abundant by-product in Spanish oil industry. Due its massive rate production increasing associated transportation costs, pomace management currently ...

Foil gas bearings are in widespread commercial use in air cycle machines, turbocompressors and microturbine generators and are emerging in more challenging applications such as turbochargers, auxiliary power units and propulsion gas turbines. Though not well known, foil bearing technology is well over fifty years old. Recent technological developments indicate that their full potential has yet ...