The design, operation, and performance of a prototype steam injection system for a supersonic combustion wind tunnel

1995 ◽  
Author(s):  
Franco Tao
Keyword(s):  
Wind Tunnel ◽  
Steam Injection ◽  
Supersonic Combustion ◽  
Injection System ◽  
And Performance

scholarly journals Final design and on-sky testing of the iLocater SX acquisition camera: broad-band single-mode fibre coupling

2020 ◽  
Vol 501 (2) ◽  
pp. 2250-2267
Author(s):  
J Crass ◽  
A Bechter ◽  
B Sands ◽  
D King ◽  
R Ketterer ◽  
...  
Keyword(s):  
Adaptive Optics ◽  
Near Infrared ◽  
Broad Band ◽  
Single Mode ◽  
Injection System ◽  
Single Mode Fibre ◽  
Astronomical Instruments ◽  
Final Design ◽  
Camera Design ◽  
And Performance

ABSTRACT Enabling efficient injection of light into single-mode fibres (SMFs) is a key requirement in realizing diffraction-limited astronomical spectroscopy on ground-based telescopes. SMF-fed spectrographs, facilitated by the use of adaptive optics (AO), offer distinct advantages over comparable seeing-limited designs, including higher spectral resolution within a compact and stable instrument volume, and a telescope independent spectrograph design. iLocater is an extremely precise radial velocity (EPRV) spectrograph being built for the Large Binocular Telescope (LBT). We have designed and built the front-end fibre injection system, or acquisition camera, for the SX (left) primary mirror of the LBT. The instrument was installed in 2019 and underwent on-sky commissioning and performance assessment. In this paper, we present the instrument requirements, acquisition camera design, as well as results from first-light measurements. Broad-band SMF coupling in excess of 35 per cent (absolute) in the near-infrared (0.97–1.31 ${\mu {\rm m}}$) was achieved across a range of target magnitudes, spectral types, and observing conditions. Successful demonstration of on-sky performance represents both a major milestone in the development of iLocater and in making efficient ground-based SMF-fed astronomical instruments a reality.

New Concept of a Micro Gas Turbine Based Co-Generation Package for Performance Improvement in Practical Use

2005 ◽  
Author(s):  
Kenichiro Mochizuki ◽  
Satoshi Shibata ◽  
Umeo Inoue ◽  
Toshiaki Tsuchiya ◽  
Hiroko Sotouchi ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Steam Generator ◽  
Thermal Efficiency ◽  
Heat Recovery ◽  
Steam Injection ◽  
Operating Conditions ◽  
Market Potential ◽  
Injection System ◽  
Heat Recovery Steam Generator ◽  
Micro Gas Turbine

As the energy consumption has been increasing rapidly in the commercial sector in Japan, the market potential for the micro gas turbine is significant and it will be realized substantially if the thermal efficiency is improved. One of measures is to introduce the steam injection system using the steam generated by the heat recovery steam generator. Steam injection tests have been carried out using a micro gas turbine (Capstone C60). Test results showed that key performance parameters such as power output, thermal efficiency and emissions were improved by the steam injection. The stable operation of micro gas turbine with steam injection was confirmed under various operating conditions. Consequently, a micro gas turbine based co-generation package with steam injection driven by a heat recovery steam generator (HRSG) with supplementary firing is proposed.

Application of Two Sections Focusing Schlieren Technique on the Supersonic Combustion Wind Tunnel

2012 ◽  
pp. 647-652
Author(s):  
Ai-min Xie ◽  
Jie Huang ◽  
Si-yuan Huang ◽  
Han-chen Bai ◽  
Qiang Song ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Supersonic Combustion ◽  
Schlieren Technique

scholarly journals Design and Performance of a Low-Turbulence Wind Tunnel

1986 ◽  
Vol 89 (808) ◽  
pp. 248-254
Author(s):  
Hidesato ITO ◽  
Ryoji KOBAYASHI
Keyword(s):  
Wind Tunnel ◽  
And Performance

Design and performance of the aeroacoustic wind tunnel in SUSTech

2020 ◽  
Author(s):  
Yannian Yang ◽  
Yu Liu ◽  
Rui Liu ◽  
Binglei Duanmu ◽  
Wen Huang ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
And Performance
Sign in / Sign up

Export Citation Format

Share Document