Low Pressure (LP) Turbine Section
3D shape optimisation of a low-pressure turbine stage
... Each parameter was allowed to vary in a prescribed range (bounded optimisation). 4.1.1 Blade twist angle One of the basic method of changing 3D geometry of the blade is twisting of the stator/rotor profiles. An example of ...
12
Computational Investigation of Low-Pressure Turbine Aerodynamics
... CFX is a very powerful computational tool that has all of the turbulence and transitional flow models that are being validated with this project. 5.1.1. Turbulence Models Implemented One of the goals of this project was ...
117
Aerodynamics of Low Pressure Steam Turbine Exhaust Systems
... total pressure and total enthalpy distribution was specified at the domain inlet, with no swirl and linearly varied pitch angle, based on the angles at the hub and ...steam turbine at design ...
174
The study of the interactions between a low pressure steam turbine and axial-radial diffuser
... diffuser pressure recovery and 50% reduction in the leaving losses at the diffuser ...the turbine stages is necessary for the numerical analyses of the turbine ...quarter section of the ...
133
Fractographic investigations of the failure of L-1 low pressure steam turbine blade
... transverse section of the fractured blade after being polished was found to be 438 VHN at 500 g load which lies within the limits recommended for AISI 420 martensitic ...
7
Stress corrosion cracking of low pressure steam turbine blade and rotor materials
... cross section of oxide along a stress corrosion crack through a sample exposed to condensing steam at 95°C for ...cross section through a stress corrosion crack in a sample exposed to condensing steam at ...
230
Low cycle fatigue numerical estimation of a high pressure turbine disc for the AL-31F jet engine
... high pressure turbine consists of a disc, rotor blades, gudgeon and a high pressure turbine ...high pressure turbine disc is made by ironwork with consequent chip ...flange ...
5
Scale-Resolving Simulations of Low-Pressure Turbine Cascades with Wall Roughness Using A Spectral-Element Method
... surface pressure at the suction–side fore section, consistent with the pre- vious simulations by Joo et ...surface pressure distribution by the RANS simula- tions is similar for the clean and k s = ...
18
Design and Analysis of a High Pressure Steam Turbine
... steam turbine may be a more efficient use of fuel and results in cost ...high pressure steam at 565 ° C and 156 bar pressure passes through the high pressure ...this section is returned ...
10
Experimental Investigation of the Interaction between Purge and Main Annulus Flow upstream of a Guide Vane in a Low Pressure Turbine
... To get additional information of the flow field within the rim seal, PIV measurements with a light sheet in radial-axial direction (setup R) have been carried out. In total, 12 pitch-wise locations have been measured as ...
179
The Problem Solving of Exhaust Frame Air Cooling System Pressure Low in GE Frame 9 Gas Turbine
... 10 LOW PRESSURE PROBLEM IN EXHAUST FRAME COOLING SYSTEM The exhaust frame cooling system consists of parallel blowers of two units (88TK - 1, 88TK - ...the turbine shell, the exhaust frame radial ...
10
Optimization study on the downstream section of a radial inflow turbine
... unidirectional turbine customized for ...The low frequency of the wave cycle compared to the turbine frequency allows their interaction to be negligible and the assumption of quasi-steady airflow ...
11
Condition Monitoring of Low Pressure Steam Turbine Blades
... I B Carrington, J R Wright, J E Cooper and G Dimitriadis have conducted experiments and formulated three vibrational analysis methods and applied to blade tip timing problem for the first time, using data obtained from a ...
16
Fracture analysis of a low pressure steam turbine blade
... Cracks were analysed at the root of the third blade row of low-pressure steam turbine blades of different natural frequencies. The root cause of the fatigue crack initiation was pitting corrosion of ...
12
Performance Evaluation of Low Pressure Energy Recovery Tesla Turbine
... 2 Assistant Professor, Dept. of Mechanical Engineering, Jaihind College of Engg., Kuran, Pune, Maharashtra, India ...
6
Experimental Studies of Low-Pressure Turbine Flows and Flow Control
... 关24,25兴 used steady and pulsed VGJ’s to successfully control separation on LPT airfoils. They used the ‘‘Pak-B’’ airfoil, which is an industry supplied research airfoil that is prone to separation problems at low ...
212
Low Pressure High Torque Quasi Turbine Rotary Air Engine
... Quasi turbine (QT) engines and its application in industrial systems and new technologies which are improving their ...quasi turbine rotary air engine having low rpm and works on low ...
8
Failure Analysis of Last Stage Low Pressure Steam Turbine Blade
... steam turbine blades under reverse flow conditions, last stage steam turbine blades are known to suffer high alternating stresses under low volumetric flows of ...The low volumetric flows ...
13
Thermal Analysis of a Three Dimensional Model for Low- Pressure Steam Turbine
... LP turbine is a pressure compounded, either single or dual axial flow, condensing reaction ...lower pressure steam, reaction balding is used on the LP ...a low steam turbine blade under ...
9
The influence of condenser pressure variation and tip leakage on low pressure steam turbine exhaust hood flows.
... Email: [email protected] This paper aims to highlight the importance of the accurate computational modelling of both the inlet and outlet exhaust hood boundary conditions. The computations presented are calculated ...
11