Analisa Overheating Pada Kompresor Sullair LS16-60/75/100

2020 ◽  
Vol 1 (1) ◽  
pp. 25-31
Author(s):  
Dodi Indrawan
Keyword(s):  
Heat Dissipation ◽  
Engine Performance ◽  
Working Hours ◽  
Air Pressure ◽  
Air Compressor ◽  
Production Section ◽  
Water Cooler ◽  
Engine Components ◽  
Air Circulation ◽  
Filter Housing

Background The problem faced is overcoming the Overheating of the Screw Air Compressor, the air circulation in the compressor chamber is not good, the Oil has passed the Normal Working Hours, the Oil Separator is clogged, the heat dissipation is blocked in the Coller Unit, the oil filter is clogged with dirt, the Distribution Mechanism in the Oil Filter Housing The unit does not work. Aim of overcoming the overheating that occurs in the compressor which results in a decrease in air pressure on the engine in the production section, knowing the cause of the damage or downtime. Method used is observation of the compressor operation, and checking the compressor engine components. Results and Discussion Overheating on the compressor engine will have an impact on the performance of the engine itself and the air produced. Overheating in the compressor engine is caused by several things including poor air circulation, so the air gets hot and the engine performance decreases. Conclusion minimize damage caused by overheating is to carry out maintenance of the water cooler and oil coller

Vibration Spectra as a Feedback for Controlling Multicylinder Engine Performance

1992 ◽  
Vol 3 (2) ◽  
pp. 176-192
Author(s):  
T.W. Abou-Arab ◽  
M. Othman ◽  
Y.S.H. Najjar
Keyword(s):  
Engine Speed ◽  
Engine Performance ◽  
Feedback System ◽  
Operating Conditions ◽  
Flow Induced Vibration ◽  
Vibration Spectra ◽  
Parametric Studies ◽  
Vibration Pattern ◽  
Engine Components ◽  
Heat And Fluid Flow

Increasing requirements for vehicle confort, economy and reliability lead some investigators to consider the relationships between the mechanical vibrations with the heat and fluid flow induced vibration and noise in a more accurate manner. This paper describes the variation of the vibration phenomena associated with the motion of some engine components under different operating conditions. The measured vibration spectra indicates its capability in predicting symptoms of early engine failures, hence, expediting their control using a suitable feedback system. Parametric studies involving the effect of air-fuel ratio, ignition timing and engine speed on the vibration pattern are also carried out. These studies indicate that the amplitude of vibration decreases as the speed increases then increases again after certain engine speed. The effect of ignition system characteristic on the induced vibration are obtained and the correlation between the developed power and the engine dynamics over a range of operating conditions are discussed.

Non-Linear Aeromechanical Behaviour of Axial Core Compressor Stator Vanes

2007 ◽  
Author(s):  
Caetano Peng
Keyword(s):  
Integrated Design ◽  
Engine Performance ◽  
Forced Response ◽  
Design Tools ◽  
Virtual Testing ◽  
Aero Engine ◽  
Stator Vane ◽  
Recent Developments ◽  
Aero Engines ◽  
Engine Components

This paper highlights some engine non-linearities that can affect both performance and robustness of aero engines. It pays particular attention to non-linearities generated at the stator vane contact end joints. These non-linearities resulting from friction contact joints affect the vane modeshapes, damping and forced response. This work proposes upper and lower bound solutions based on vane end restraints non-linearities to predict conservative forced response of stator vanes. Some non-linearities such as those caused by mistuning can be beneficial to the component and system. There are also non-linearities that can be detrimental to engine performance, robustness and reliability. Moreover, it proposes and discusses the concept of temporal HCF or CCF lifing method. Recent developments in FE, CFD, mistuning, forced response and probabilistic codes can help to create more integrated design tools that incorporate time-dependent non-linearities in the lifing of aero engine components. Computations performed here demonstrated some level of component virtual testing. These analyses are important component virtual testing that will be gradually extended to whole aero engine virtual testing.

Entropy, Energy and Exergy for Measuring PW4000 Turbofan Sustainability

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Hakan Aygun ◽  
Onder Turan
Keyword(s):  
Thrust Force ◽  
Engine Performance ◽  
Sustainable Growth ◽  
Performance Parameters ◽  
Turbofan Engine ◽  
Effect Factor ◽  
Energy And Exergy ◽  
And Performance ◽  
Engine Components ◽  
Main Engine

Abstract This study focuses on for a PW4000 high-bypass turbofan engine using energy, exergo-sustainable and performance viewpoint. For this aim, irreversibility and performance analyses are firstly performed for five main engine components at ≈260 kN maximum take-off thrust force. Besides, overall efficiency of the turbofan is determined to be 33 %, while propulsive and thermal efficiency of the turbofan are 72 % and 46 % respectively at 0.8 M and 288.15 K flight conditions. Secondly, calculation component-based exergetic assessment is carried out using exergetic indicators. According to the calculation, the exergetic efficiency of the engine is 32 %, while its waste exergy ratio is 0.678. Furthermore, exergetic sustainability measure is obtained as 0.473, while enviromental effect factor is 2.112. These indicators are also anticipated to help comprehend the connection between engine performance parameters and worldwide dimensions such as environmental effect and sustainable growth.

Thrust Reverser for a Mixed Exhaust High Bypass Ratio Turbofan Engine and its Effect on Aircraft and Engine Performance

2012 ◽  
Author(s):  
Tashfeen Mahmood ◽  
Anthony Jackson ◽  
Syed H. Rizvi ◽  
Pericles Pilidis ◽  
Mark Savill ◽  
...  
Keyword(s):  
Engine Performance ◽  
Engine Exhaust ◽  
Turbofan Engine ◽  
The Public ◽  
Engine Model ◽  
Turbine Performance ◽  
Lp Turbine ◽  
Engine Components ◽  
Thrust Reverser ◽  
Bypass Ratio

This paper discusses thrust reverser techniques for a mixed exhaust high bypass ratio turbofan engine and its effect on aircraft and engine performance. The turbofan engine chosen for this study was CUTS_TF (Cranfield University Three Spool Turbofan) which is similar to Rolls-Royce TRENT 772 engine and the information available for this engine in the public domain is used for the engine performance analysis along with the Gas Turbine Performance Software, GasTurb 10. The CUTEA (Cranfield University Twin Engine Aircraft) which is similar to the Airbus A330 is used along side with the engine model for the thrust reverser performance calculations. The aim of this research paper is to investigate the effects on mixed exhaust engine performance due to the pivoting door type thrust reverser deployment. The paper looks into the engine off-design performance characteristics and how the engine components get affected when the thrust reverser come into operation. This includes the changes into the operating point of fan, IP compressor, HP compressor, HP turbine, IP turbine, LP turbine and the engine exhaust nozzle. Also, the reverser deployment effect on aircraft, deceleration time and landing distances are discussed.

scholarly journals Improving performance parameters of combustion engine for racing purposes

2014 ◽  
Vol 60 (No. 3) ◽  
pp. 83-91
Author(s):  
T. Polonec ◽  
I. Janoško
Keyword(s):  
Service Life ◽  
Fuel Consumption ◽  
Combustion Engine ◽  
Engine Performance ◽  
Drive Train ◽  
Performance Parameters ◽  
Mechanical Parts ◽  
Race Conditions ◽  
Engine Components ◽  
A Performance

Mechanical parts of stock engine have a performance reserve which could be utilized when the engine is used under the race conditions. Especially normal turbocharged engines have their performance parameters designed to drive in traffic, where a good flexibility, reliability, fuel consumption and a long service life is required. It is possible to utilize the whole power of the engine, when changing or modifying some of its external parts and achieve better performance parameters without modifying or changing internal engine components. Performed changes must be realized thoughtfully and on the admittable level, so the engine and other drive train components would not be damaged. In our study we design several changes of external parts of engine which have a significant impact on the improvement of engine performance parameters. Their contribution has been verified in practice by an engine dynamometer.

Study on Probability Distributions of Processing and Assembling Promoters of Aero-Engine Critical Part

2013 ◽  
Vol 290 ◽  
pp. 107-111
Author(s):  
Min Huang ◽  
Zhao Wang ◽  
Jun Yi
Keyword(s):  
Correlation Analysis ◽  
Theoretical Basis ◽  
Probability Distributions ◽  
Engine Performance ◽  
Optimal Distribution ◽  
Analysis Software ◽  
Critical Part ◽  
Aero Engine ◽  
Vibration Parameters ◽  
Engine Components

According to the characteristics of aero-engine and the study purpose of this paper, aero-engine information data were collected and screened from " Aero-engine Assembly Resume ", included: certain engine components data, assembly detection data and engine trial run data. By using the collected and screened data, correlation analysis were carried among testing parameters and among vibration parameters, correlation analysis were also carried between testing parameters or vibration parameters and components geometry parameters, assembly parameters or parameters combination which impact engine performance. From the result of correlation analysis, the key parameters strongly affecting engine performance can be found out, and then according to the value of the correlation coefficient put these parameters in queue. The optimal distribution of these parameters in queue can be determined by data analysis software, and the estimation eigenvalue of these parameter can be obtained. Purpose and significance of this paper is to improve the reliability of the components producing and assembly processing, what is more, it provides theoretical basis for the design and improvement of aero-engine.

Free Convection in Open-Ended Rectangular Cavities-Inclination Dependence

1972 ◽  
Vol 14 (1) ◽  
pp. 78-81 ◽  
Author(s):  
S. D. Probert ◽  
H. D. Malde
Keyword(s):  
Channel Length ◽  
Air Pressure ◽  
Heat Leak ◽  
Parallel Plates ◽  
Cell Geometry ◽  
Rectangular Cell ◽  
Steady State Temperature ◽  
Circulation Patterns ◽  
The Mean ◽  
Air Circulation

Air pressure was employed as the variable to distinguish between the radiative, conductive and free convective components of the heat leak between the isothermal parallel plates of a rectangular cell. A steady-state temperature difference existed between the isothermal parallel plates. The radiative and, to a large extent, the gaseous conductive components were independent of cell inclination. However, for the chosen cell geometry (plates with inclined dimension 15 cm × channel length 12 cm × separation 2 cm) the mean slope of the convective component versus the logarithm of the air pressure exhibited minima at 27° inclination to the horizontal when the plates were at 200°C and 15°C respectively. This phenomenon is due to differing air circulation patterns predominating above and below this inclination.

Recoverable Versus Unrecoverable Degradations of Gas Turbines Employed in Five Natural Gas Compressor Stations

2015 ◽  
Vol 138 (2) ◽  
Author(s):  
K. K. Botros ◽  
C. Hartloper ◽  
H. Golshan ◽  
D. Rogers
Keyword(s):  
Gas Turbines ◽  
Measurement Errors ◽  
Standard Procedure ◽  
Engine Performance ◽  
Performance Degradation ◽  
Pipeline System ◽  
Variable Model ◽  
Air Compressor ◽  
Hourly Data ◽  
Over Time

Gas turbines (GT), like other prime movers, experience wear and tear over time, resulting in decreases in available power and efficiency. Further decreases in power and efficiency can result from erosion and fouling caused by the airborne impurities the engine breathes in. To counteract these decreases in power and efficiency, it is a standard procedure to “wash” the engine from time to time. In compressor stations on gas transmission systems, engine washes are performed off-line and are scheduled in such intervals to optimize the maintenance procedure. This optimization requires accurate prediction of the performance degradation of the engine over time. A previous paper demonstrated a methodology for evaluating various components of the GT gas path, in particular, the air compressor side of the engine since it is most prone to fouling and degradation. This methodology combines gas path analysis (GPA) to evaluate the thermodynamic parameters over the engine cycle followed by parameter estimation based on the Bayesian error-in-variable model (EVM) to filter the data of possible noise due to measurement errors. The methodology quantifies the engine-performance degradation over time, and indicates the effectiveness of each engine wash. In the present paper, the methodology was extended to assess both recoverable and unrecoverable degradations of five GT engines employed on TransCanada's pipeline system in Canada. These engines are: three GE LM2500+, one RR RB211-24G, and one GE LM1600 GTs. Hourly data were collected over the past 4 years, and engine health parameters were extracted to delineate the respective engine degradations. The impacts of engine loading, site air quality conditions, and site elevation on engine-air-compressor isentropic efficiency are compared between the five engines.

Adaptive Power-Split Control Design for Marine Hybrid Diesel Powertrain

2016 ◽  
Vol 139 (2) ◽  
Author(s):  
Sergey Samokhin ◽  
Sotiris Topaloglou ◽  
George Papalambrou ◽  
Kai Zenger ◽  
Nikolaos Kyrtatos
Keyword(s):  
Oxygen Sensor ◽  
Engine Performance ◽  
Adaptive Controllers ◽  
Power Split ◽  
Wear And Tear ◽  
Marine Engines ◽  
Adaptive Power ◽  
Sensor Degradation ◽  
Engine Components ◽  
Rapid Prototyping System

It is known that mechanical wear and tear of components of large marine engines throughout their lifetime can cause the engine dynamics to alter. Since traditional control systems with fixed parameters cannot deal with this issue, the engine performance may degrade. In this work, we introduce adaptive control algorithms capable of adapting the control system in order to preserve the engine performance once its dynamics deviate from the nominal ones. Particularly, the direct and indirect model reference adaptation mechanisms are studied. In this work, the case of degraded oxygen sensor is investigated as an example of engine components deterioration throughout its lifetime. The controllers are implemented in Simulink, and their performance is evaluated under both nominal and degraded sensor conditions. Specifically, the sensor degradation is imitated by altering its time-delay. In such conditions, adaptive controllers demonstrate a notable improvement in tracking performance compared to the fixed parameters proportional-integral (PI) controller. Finally, the designed controllers are validated on the hybrid marine engine testbed using dSpace rapid prototyping system.

scholarly journals Thermomechanical fatigue characterization of zirconia (8%Y2O3-ZrO2) and mullite thermal barrier coatings on diesel engine components: Effect of coatings on engine performance

2000 ◽  
Vol 214 (5) ◽  
pp. 729-742 ◽  
Author(s):  
P Ramaswamy ◽  
S Seetharamu ◽  
K B R Verma ◽  
N Raman ◽  
K J Rao
Keyword(s):  
Diesel Engine ◽  
Thermal Barrier Coatings ◽  
Fuel Efficiency ◽  
Engine Performance ◽  
Thermal Barrier ◽  
Barrier Coatings ◽  
X Ray ◽  
Piston Head ◽  
Mullite Coatings ◽  
Engine Components

8%Y2O3-stabilized zirconia (8YPSZ) and mullite (3Al2O3·2SiO2) powders, which were made plasma sprayable by using an organic binder (polyvinyl alcohol), have been plasma spray coated on to the piston head, valves and cylinder head of a 3.8kW single-cylinder diesel engine, previously coated with Ni-Cr-Al-Y bond coat. The engine with components coated with 250 μm thick 8YPSZ and 1 mm thick mullite thermal barrier coatings has been evaluated for fuel efficiency and for endurance during 500 h long rigorous tests. Improved fuel efficiency was shown by the engine with coated components and the results are discussed. The coatings and the coated components have also been examined for phases, microstructure and chemical composition by X-ray diffractometry (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX). Mullite coatings were found to exhibit increased resistance to microcracking compared with 8YPSZ during the 500 h endurance test.

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