Search Results - "Kim, Sangjo"

Optimization of a nozzle vane of gas turbine pre-swirl system by Kim, Moojae, Kim, Sangjo, Kim, Donghwa, Lee, Changhoon

“…Gas turbine pre-swirl systems has been known to provide smooth cooling air to rotating turbine blades for prevention of thermal damage caused by high turbine…”
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A new performance adaptation method for aero gas turbine engines based on large amounts of measured data by Kim, Sangjo

“…Multiple unexpected uncertainty factors can occur when measuring gas turbine engine data, and the quality of the measured data can directly affect the accuracy…”
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Generating a virtual physical model through measurement data and reverse engineering: Applying a performance prediction model for an industrial gas turbine during start-up by Kim, Sangjo

“…•The virtual physical model is generated based on test data and reverse engineering.•A simplified gas turbine model configuration is used for physical…”
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Comparative study on implementation technology for enhancing performance of combined cycle power plant in system perspective by Kim, Sangjo, Won, Jumok, Kim, Changju, Son, Changmin

“…In the present study, several technologies are compared and evaluated for improving the power and efficiency of a combined cycle power plant (CCPP) using…”
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Application of machine learning and its effectiveness in performance model adaptation for a turbofan engine by Kim, Sangjo

“…Engine performance models are used in various fields, such as operation optimization, control, and diagnosis. In order to effectively apply an engine…”
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Adaptation Method for Overall and Local Performances of Gas Turbine Engine Model by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…An adaptation method was proposed to improve the modeling accuracy of overall and local performances of gas turbine engine. The adaptation method was divided…”
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A novel design method of the dividing header configuration using 3D numerical simulation for a heat exchanger with a parallel arrangement by Kim, Sangjo

“…[Display omitted] •A tubular heat exchanger with parallel flow is consider in this study.•A novel method is proposed for quickly designing the header…”
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A new transient performance adaptation method for an aero gas turbine engine by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…The performance adaptation method based on the transient measurement data is proposed to generate a dynamic simulation model for gas turbine engines. The…”
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Transient system simulation for an aircraft engine using a data-driven model by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…In this paper, a simulation approach using a data-driven model to predict the performance of a gas turbine for aircraft engines during transient operations is…”
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Complementarity analysis of a multi‐item inventory model with leading product pricing by Kim, Sangjo, Feng, Youyi, Xu, Jianjun

“…Our research investigates a joint inventory replenishment and pricing problem, where a seller controls the price of a leading product while restocking for all…”
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A study on one-dimensional model correction for axial-flow compressors based on measurement data by Kim, Sangjo, Im, Ju Hyun, Ryu, Gyongwon

“…In this study, a method for correcting a one-dimensional (1D) meanline model for axial-flow compressors using measured data and its effectiveness were…”
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Three-dimensional unsteady simulation of a multistage axial compressor with labyrinth seals and its effects on overall performance and flow characteristics by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…The purpose of this investigation was to explore the effects of leakage flows from labyrinth seals in shrouded stators on the performance and detailed flow…”
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Equivalent model for an axial compressor used for aero engines based on 1D and 3D analytical models and performance data by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…This paper proposes a method to generate an equivalent model for predicting compressor performance by correcting a one-dimensional (1D) meanline analysis model…”
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Combining effect of optimized axial compressor variable guide vanes and bleed air on the thermodynamic performance of aircraft engine system by Kim, Sangjo, Son, Changmin, Kim, Kuisoon

“…Aim of this work is to provide evidence of the effectiveness of combined use of the variable guide vanes (VGVs) and bleed air on the thermodynamic performance…”
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Diagnostics using a physics-based engine model in aero gas turbine engine verification tests by Kim, Sangjo, Im, Ju Hyun, Kim, Myungho, Kim, Junghoe, Kim, You Il

“…In the present study, the application of a diagnostic method using a physics-based model is proposed during engine verification testing. A physics-based engine…”
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Suitability of performance adaptation methods for updating the thermodynamic cycle model of a turboprop engine by Kim, Sangjo, Lee, Chung-Ryeol, Yang, Wonseok, Kim, Youil

“…•The thermodynamic cycle model of a turboprop engine is updated based on test data.•The performance adaptation method is used to update the cycle…”
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Optimum arrangements of guide vanes in a combining header and its effect on the performance of a tubular heat exchanger by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…•Guide vanes are installed in the combining header of a U-type tubular heat exchanger.•Arrangements of the guide vanes are obtained by using optimization…”
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A full engine cycle analysis of a turbofan engine for optimum scheduling of variable guide vanes by Kim, Sangjo, Kim, Donghyun, Son, Changmin, Kim, Kuisoon, Kim, Myungho, Min, Seongki

“…This paper proposes a full engine cycle analysis to derive the schedule of variable guide vanes (VGVs) in a multi-stage axial compressor for improving the…”
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Adaptation Method for Overall and Local Performances of Gas Turbine Engine Model by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…An adaptation method was proposed to improve the modeling accuracy of overall and local performances of gas turbine engine. The adaptation method was divided…”
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Aerodynamic Performance of Multi-stage Axial Compressor Considering Cold-to-Hot Deformation Effect by Kim, Sangjo, Kim, Kuisoon, Son, Changmin

“…Predicting the exact performance of multi-stage compressors for an aircraft gas turbine is important in the design process and calculation of off-design…”
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