... Abstract This work presents a systematic thermodynamic study to identify and assess the effects of wet compression stage conditioning in aeroengines. Similar techniques found in the literature are initially reviewed. The performance of a modern two-spool turbofan engine variant is then modelled...

... speed at the shaft coupling. In addition, the test rig can also be used to investigate the effects of wet compression. For this purpose, a spray nozzle can be installed in front of the impeller’s bell mouth. In order to investigate the influence of temperatures on evaporation rates, a preheater in front...

... observed at the rotor tip proving the case for part-span injection from an entropy balance perspective. water injection wet compression entropy efficiency aerodynamic performance axial compressor ENTROPY GENERATION AND EFFICIENCY OF A TRANSONIC ROTOR WITH WATER INJECTION: A NUMERICAL STUDY...

... In this paper, wet compression effects on an eight-stage axial subsonic compressor is simulated by steady numerical methods. Special attention is paid to the compressor design operating condition and rotating stall boundary to contrast and analyze the changes such as the compressor performance...

... In this paper, a thorough flow simulation of a small turbojet engine has been carried out to predict the engine performance as a result of water injected at the compressor inlet. Wet compression will not only change compressor performance characteristic map, but also has effects on both...

... injection at the rotor tip with and without the wet compression on the compressor performance and its stability have been examined. To achieve the stated objectives, the well tested transonic compressor rotor stage, NASA rotor stage 37, has been numerically simulated. The evaluation of results on various...

... with ANSYS CFX software. Wet compression Separated flow Numerical simulation Compressor cascade 1 Copyright © 2012 by ASME THE EFFECTIVE POSITIONS TO INJECT WATER INTO THE CASCADE OF COMPRESSOR Jie Wang, Qun Zheng, Lanxin Sun and Mingcong Luo Harbin Engineering University, Harbin 150001, China E...

... 11 01 2011 The process of wet compression in an axial compressor is an intricate two-phase flow involving not only heat and mass transfer processes but also droplet breakup and even formation of discontinuous water film on the blade surface and then breaking into droplets...

... Wet compression fuel injection JP-8 axial compressor performance 1 Copyright © 2010 by ASME Proceedings of ASME Turbo Expo 2010: Power for Land, Sea and Air GT2010 June 14-18, 2010, Glasgow, Scottland GT2010-23492 THE EFFECTS OF WET COMPRESSION WITH FUEL INJECTION AT THE GEOMETRY...

... 23 02 2010 Concerned with the influence of the size of water droplets on the effect of wet compression, it is important to control the size of water droplets among 5–10 microns or smaller, for this purpose an experimental work is carried out by improve the surface behavior of water...

... 04 08 2009 Effects of wet compression on the flow field within a compressor stage, particularly in presence of the separated flow region are not fully understood. Numerical simulations of 3D compressible separated flows within a wet compression compressor stage are carried out using...

... during preliminary design studies, at which time during the compressor design process one would logically consider power augmentation through wet compression. The calibrated code features a non-equilibrium thermodynamic single-droplet evaporation model augmented with an empirical splashing model, which...

... 05 02 2009 Thermodynamic model of wet compression process is established in this paper. The topics of ideal wet compression process, actual wet compression process, water droplet evaporative rate, wet compression work, inlet evaporative cooling, concept of wet compression efficiency...

... 25 11 2008 Wet compression Moore-Greitzer stability model is established in this paper. Transient performances of wet compression system are investigated and discussed. The model can be used for instabilities analyses of wet compression gas turbine, and be used for active control...

... E% %56# U 9 C $ 4MM '3/ 0 9 33 =B 6 B B # C D 5 high fogging internal cooling wet compression fogging power augmentation High fogging is a power augmentation device where water...

... 03 11 2008 The present paper examines the effect of water injection at the compressor inlet or between stages, on its operation. A wet compression model coupled with an engine performance model is used. The wet compression model produces the compressor performance map when water...

... in this paper. Power augmentation overspray high fogging wet compression 0 al am co h p o lo ev th as te fo in re au tu Proceedings of GT2005 ASME Turbo Expo 2005: Power for Land, Sea and Air June 6-9, 2005, Reno-Tahoe, Nevada, USA1 Copyright © 2005 by ASME .50% to 0.90% for every 1ºC...

... duct were studied during wet compression in the compressor and the reduction in compressor discharge air temperature was predicted. Finally, the effects of both evaporative cooling in inlet duct, and wet compression in compressor, on the power output, and turbine exhaust temperature of a gas turbine...

... nature and water acceleration. The efficiency degradation is proportional to the water ratio entering the engine. water injection wet compression two phase flow the moist gas turbin efficiency demand u inlet air c inside the For t performan Utamura e Altho injection, to under operation In th...

... concerning the wet-compression process. Current operational margins limit the vapor mass fraction to 1∼2% by mass of the inlet flow. Yet, machines specifically designed to accommodate higher mass fractions are conceivable. Our aim is to explain the theoretical limits of those machines via a heat and mass...