call for paper 2012, hard copy of journal, research paper publishing, where to publish research paper,
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals
The companies of Altra Industrial Motion offer many critical drivetrain products utilized in fan and HVAC applications including clutches, couplings, belted drives, and turning, locking & braking systems.
Finite Element Analysis of Opening Plate, Fixed Tube Sheet and Floating Sheet...IOSRJMCE
)A heat exchanger is a device that is used to transfer thermal energy (enthalpy) between two or more fluids, between a solid surface and a fluid, or between solid particulates and a fluid, at different temperatures and in thermal contact. Opening Plate, Fixed Tube Sheet and Floating Tube Sheet is a part of Shell & Tube Heat Exchanger, used in refinery and oil & gas production. Typically, shell & tube heat exchanger can be considered as a pressure vessel subjected to uniform internal pressure. Hence the shell & tube heat exchanger in various design and operating conditions needs to be checked and verified for soundness of participating components. Opening, Fixed tube and Floating sheet plate due to uniform internal pressure in the shell & tube heat exchanger can produce high-localized stress and deformation. If the components are not designed for these conditions, safety of the equipment is at stake. Hence check for the stress and displacement of the shell & tube heat exchanger during operating condition is carried out using finite element analysis software and observed that shell & tube heat exchanger is free from collapse and serviceability failure.
The companies of Altra Industrial Motion offer many critical drivetrain products utilized in fan and HVAC applications including clutches, couplings, belted drives, and turning, locking & braking systems.
Finite Element Analysis of Opening Plate, Fixed Tube Sheet and Floating Sheet...IOSRJMCE
)A heat exchanger is a device that is used to transfer thermal energy (enthalpy) between two or more fluids, between a solid surface and a fluid, or between solid particulates and a fluid, at different temperatures and in thermal contact. Opening Plate, Fixed Tube Sheet and Floating Tube Sheet is a part of Shell & Tube Heat Exchanger, used in refinery and oil & gas production. Typically, shell & tube heat exchanger can be considered as a pressure vessel subjected to uniform internal pressure. Hence the shell & tube heat exchanger in various design and operating conditions needs to be checked and verified for soundness of participating components. Opening, Fixed tube and Floating sheet plate due to uniform internal pressure in the shell & tube heat exchanger can produce high-localized stress and deformation. If the components are not designed for these conditions, safety of the equipment is at stake. Hence check for the stress and displacement of the shell & tube heat exchanger during operating condition is carried out using finite element analysis software and observed that shell & tube heat exchanger is free from collapse and serviceability failure.
Comparison of backward curved impeller with backward inclined Airofoil of Cen...IJESFT
The main objective of this paper is to show Comparison of backward curved impeller with backward inclined Airofoil of Centrifugal fan. The best efficiency points at different speeds were obtained. The produced static pressure and air volume at best efficiency points were recorded. Results were plotted as fan characteristic curve and conclusion has been made.
AAF UK designed, manufactured and tested equipment to provide the most dependable complex clean air filtration solution for the Combustion Intake System for a Rolls-Royce Gas Turbine power generation units for Oil and Gas applications.
Rastgar & Co introduces it specialisation in Air Compressors of all kinds, sales, service, spares, turnkey solutions, maintenance, air end refurbishment, at all industrial sites in Pakistan. Several CompAir, Gardner Denver products are handled.
Centrifugal fan which is also called as squirrel cage fan because of its hamster wheel design is widely used to move air/gas continuously in industries and commercial applications. The speed of the air stream entering into the fan, is increased by the impeller thereby it gains kinetic energy and accelerates radially changing the direction by 90°. As these fans are capable of displacing constant volume of air/gas at increased speed, they are widely used in various process applications in industries such as in material handling, boiler applications, transporting gas or materials, ventilation and combustion, air circulation and in other HVAC systems.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
Kaveri engine is an afterburning turbofan project developed by the GTRE, lab under DRDO, India. GTRE is now running two separate successor engine programmes, the K9+ and the K10. Click here to know more about kaveri Engine : http://www.drdo.gov.in/drdo/English/index.jsp?pg=Kaveri.jsp
Types Of Centrifugal Fans Used In Power Plant BoilersNeelRao
The purpose of boiler in thermal power plants is to covert water into steam with the help of heat energy generated by the combustion of fuels like coal, wood, oil or natural gas.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
International Journal of Engineering Research and Development is an international premier peer reviewed open access engineering and technology journal promoting the discovery, innovation, advancement and dissemination of basic and transitional knowledge in engineering, technology and related disciplines.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Welcome to International Journal of Engineering Research and Development (IJERD)IJERD Editor
call for paper 2012, hard copy of journal, research paper publishing, where to publish research paper,
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals
Comparison of backward curved impeller with backward inclined Airofoil of Cen...IJESFT
The main objective of this paper is to show Comparison of backward curved impeller with backward inclined Airofoil of Centrifugal fan. The best efficiency points at different speeds were obtained. The produced static pressure and air volume at best efficiency points were recorded. Results were plotted as fan characteristic curve and conclusion has been made.
AAF UK designed, manufactured and tested equipment to provide the most dependable complex clean air filtration solution for the Combustion Intake System for a Rolls-Royce Gas Turbine power generation units for Oil and Gas applications.
Rastgar & Co introduces it specialisation in Air Compressors of all kinds, sales, service, spares, turnkey solutions, maintenance, air end refurbishment, at all industrial sites in Pakistan. Several CompAir, Gardner Denver products are handled.
Centrifugal fan which is also called as squirrel cage fan because of its hamster wheel design is widely used to move air/gas continuously in industries and commercial applications. The speed of the air stream entering into the fan, is increased by the impeller thereby it gains kinetic energy and accelerates radially changing the direction by 90°. As these fans are capable of displacing constant volume of air/gas at increased speed, they are widely used in various process applications in industries such as in material handling, boiler applications, transporting gas or materials, ventilation and combustion, air circulation and in other HVAC systems.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
Kaveri engine is an afterburning turbofan project developed by the GTRE, lab under DRDO, India. GTRE is now running two separate successor engine programmes, the K9+ and the K10. Click here to know more about kaveri Engine : http://www.drdo.gov.in/drdo/English/index.jsp?pg=Kaveri.jsp
Types Of Centrifugal Fans Used In Power Plant BoilersNeelRao
The purpose of boiler in thermal power plants is to covert water into steam with the help of heat energy generated by the combustion of fuels like coal, wood, oil or natural gas.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
International Journal of Engineering Research and Development is an international premier peer reviewed open access engineering and technology journal promoting the discovery, innovation, advancement and dissemination of basic and transitional knowledge in engineering, technology and related disciplines.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
Welcome to International Journal of Engineering Research and Development (IJERD)IJERD Editor
call for paper 2012, hard copy of journal, research paper publishing, where to publish research paper,
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals
Welcome to International Journal of Engineering Research and Development (IJERD)IJERD Editor
call for paper 2012, hard copy of journal, research paper publishing, where to publish research paper,
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
International Journal of Engineering Research and Development (IJERD)IJERD Editor
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals,
yahoo journals, bing journals, International Journal of Engineering Research and Development, google journals, hard copy of journal
Welcome to International Journal of Engineering Research and Development (IJERD)IJERD Editor
call for paper 2012, hard copy of journal, research paper publishing, where to publish research paper,
journal publishing, how to publish research paper, Call For research paper, international journal, publishing a paper, IJERD, journal of science and technology, how to get a research paper published, publishing a paper, publishing of journal, publishing of research paper, reserach and review articles, IJERD Journal, How to publish your research paper, publish research paper, open access engineering journal, Engineering journal, Mathemetics journal, Physics journal, Chemistry journal, Computer Engineering, Computer Science journal, how to submit your paper, peer reviw journal, indexed journal, reserach and review articles, engineering journal, www.ijerd.com, research journals
An approach to evaluate the heat exchanger retrofit for installed industrial ...eSAT Journals
Abstract This paper is the first part of a two-part study aiming to introduce a new integrated approach to evaluate the techno-economic value of recuperator retrofit on existing gas turbine engines. The original gas turbines are designed for combined cycles so that the pressure ratios are moderate to secure suitable exhaust temperatures. One way to enhance the thermal efficiency of some gas turbines is by using recuperation to recover some of the exhaust heat. In this part, the developed model is described and implemented for two gas turbine engines so the obtained characteristics are evaluated against the actual data. The new approach will assist users to select the suitable gas turbine models with favorable recuperator characteristics based on a technical and economic prospective. Besides, the performance results are used to design an appropriate shell and tube heat exchanger. Moreover, a new technique has been established to define the typical heat exchanger parameters in order to ensure the highest possible improvements over the original cycles. One of the main features of this method is that it depends only on the velocity of hot and cold heat exchanger streams from which the rest of the heat exchanger design and performance characteristics were derived. Key Words: integrated approach, techno-economic value, recuperation, shell and tube heat exchanger, velocity
A Novel Method for Prevention of Bandwidth Distributed Denial of Service AttacksIJERD Editor
Distributed Denial of Service (DDoS) Attacks became a massive threat to the Internet. Traditional
Architecture of internet is vulnerable to the attacks like DDoS. Attacker primarily acquire his army of Zombies,
then that army will be instructed by the Attacker that when to start an attack and on whom the attack should be
done. In this paper, different techniques which are used to perform DDoS Attacks, Tools that were used to
perform Attacks and Countermeasures in order to detect the attackers and eliminate the Bandwidth Distributed
Denial of Service attacks (B-DDoS) are reviewed. DDoS Attacks were done by using various Flooding
techniques which are used in DDoS attack.
The main purpose of this paper is to design an architecture which can reduce the Bandwidth
Distributed Denial of service Attack and make the victim site or server available for the normal users by
eliminating the zombie machines. Our Primary focus of this paper is to dispute how normal machines are
turning into zombies (Bots), how attack is been initiated, DDoS attack procedure and how an organization can
save their server from being a DDoS victim. In order to present this we implemented a simulated environment
with Cisco switches, Routers, Firewall, some virtual machines and some Attack tools to display a real DDoS
attack. By using Time scheduling, Resource Limiting, System log, Access Control List and some Modular
policy Framework we stopped the attack and identified the Attacker (Bot) machines
Hearing loss is one of the most common human impairments. It is estimated that by year 2015 more
than 700 million people will suffer mild deafness. Most can be helped by hearing aid devices depending on the
severity of their hearing loss. This paper describes the implementation and characterization details of a dual
channel transmitter front end (TFE) for digital hearing aid (DHA) applications that use novel micro
electromechanical- systems (MEMS) audio transducers and ultra-low power-scalable analog-to-digital
converters (ADCs), which enable a very-low form factor, energy-efficient implementation for next-generation
DHA. The contribution of the design is the implementation of the dual channel MEMS microphones and powerscalable
ADC system.
Influence of tensile behaviour of slab on the structural Behaviour of shear c...IJERD Editor
-A composite beam is composed of a steel beam and a slab connected by means of shear connectors
like studs installed on the top flange of the steel beam to form a structure behaving monolithically. This study
analyzes the effects of the tensile behavior of the slab on the structural behavior of the shear connection like slip
stiffness and maximum shear force in composite beams subjected to hogging moment. The results show that the
shear studs located in the crack-concentration zones due to large hogging moments sustain significantly smaller
shear force and slip stiffness than the other zones. Moreover, the reduction of the slip stiffness in the shear
connection appears also to be closely related to the change in the tensile strain of rebar according to the increase
of the load. Further experimental and analytical studies shall be conducted considering variables such as the
reinforcement ratio and the arrangement of shear connectors to achieve efficient design of the shear connection
in composite beams subjected to hogging moment.
Gold prospecting using Remote Sensing ‘A case study of Sudan’IJERD Editor
Gold has been extracted from northeast Africa for more than 5000 years, and this may be the first
place where the metal was extracted. The Arabian-Nubian Shield (ANS) is an exposure of Precambrian
crystalline rocks on the flanks of the Red Sea. The crystalline rocks are mostly Neoproterozoic in age. ANS
includes the nations of Israel, Jordan. Egypt, Saudi Arabia, Sudan, Eritrea, Ethiopia, Yemen, and Somalia.
Arabian Nubian Shield Consists of juvenile continental crest that formed between 900 550 Ma, when intra
oceanic arc welded together along ophiolite decorated arc. Primary Au mineralization probably developed in
association with the growth of intra oceanic arc and evolution of back arc. Multiple episodes of deformation
have obscured the primary metallogenic setting, but at least some of the deposits preserve evidence that they
originate as sea floor massive sulphide deposits.
The Red Sea Hills Region is a vast span of rugged, harsh and inhospitable sector of the Earth with
inimical moon-like terrain, nevertheless since ancient times it is famed to be an abode of gold and was a major
source of wealth for the Pharaohs of ancient Egypt. The Pharaohs old workings have been periodically
rediscovered through time. Recent endeavours by the Geological Research Authority of Sudan led to the
discovery of a score of occurrences with gold and massive sulphide mineralizations. In the nineties of the
previous century the Geological Research Authority of Sudan (GRAS) in cooperation with BRGM utilized
satellite data of Landsat TM using spectral ratio technique to map possible mineralized zones in the Red Sea
Hills of Sudan. The outcome of the study mapped a gossan type gold mineralization. Band ratio technique was
applied to Arbaat area and a signature of alteration zone was detected. The alteration zones are commonly
associated with mineralization. The alteration zones are commonly associated with mineralization. A filed check
confirmed the existence of stock work of gold bearing quartz in the alteration zone. Another type of gold
mineralization that was discovered using remote sensing is the gold associated with metachert in the Atmur
Desert.
Reducing Corrosion Rate by Welding DesignIJERD Editor
The paper addresses the importance of welding design to prevent corrosion at steel. Welding is
used to join pipe, profiles at bridges, spindle, and a lot more part of engineering construction. The
problems happened associated with welding are common issues in these fields, especially corrosion.
Corrosion can be reduced with many methods, they are painting, controlling humidity, and also good
welding design. In the research, it can be found that reducing residual stress on the welding can be
solved in corrosion rate reduction problem.
Preheating on 500oC and 600oC give better condition to reduce corosion rate than condition after
preheating 400oC. For all welding groove type, material with 500oC and 600oC preheating after 14 days
corrosion test is 0,5%-0,69% lost. Material with 400oC preheating after 14 days corrosion test is 0,57%-0,76%
lost.
Welding groove also influence corrosion rate. X and V type welding groove give better condition to reduce
corrosion rate than use 1/2V and 1/2 X welding groove. After 14 days corrosion test, the samples with
X welding groove type is 0,5%-0,57% lost. The samples with V welding groove after 14 days corrosion test is
0,51%-0,59% lost. The samples with 1/2V and 1/2X welding groove after 14 days corrosion test is 0,58%-
0,71% lost.
Router 1X3 – RTL Design and VerificationIJERD Editor
Routing is the process of moving a packet of data from source to destination and enables messages
to pass from one computer to another and eventually reach the target machine. A router is a networking device
that forwards data packets between computer networks. It is connected to two or more data lines from different
networks (as opposed to a network switch, which connects data lines from one single network). This paper,
mainly emphasizes upon the study of router device, it‟s top level architecture, and how various sub-modules of
router i.e. Register, FIFO, FSM and Synchronizer are synthesized, and simulated and finally connected to its top
module.
Active Power Exchange in Distributed Power-Flow Controller (DPFC) At Third Ha...IJERD Editor
This paper presents a component within the flexible ac-transmission system (FACTS) family, called
distributed power-flow controller (DPFC). The DPFC is derived from the unified power-flow controller (UPFC)
with an eliminated common dc link. The DPFC has the same control capabilities as the UPFC, which comprise
the adjustment of the line impedance, the transmission angle, and the bus voltage. The active power exchange
between the shunt and series converters, which is through the common dc link in the UPFC, is now through the
transmission lines at the third-harmonic frequency. DPFC multiple small-size single-phase converters which
reduces the cost of equipment, no voltage isolation between phases, increases redundancy and there by
reliability increases. The principle and analysis of the DPFC are presented in this paper and the corresponding
simulation results that are carried out on a scaled prototype are also shown.
Mitigation of Voltage Sag/Swell with Fuzzy Control Reduced Rating DVRIJERD Editor
Power quality has been an issue that is becoming increasingly pivotal in industrial electricity
consumers point of view in recent times. Modern industries employ Sensitive power electronic equipments,
control devices and non-linear loads as part of automated processes to increase energy efficiency and
productivity. Voltage disturbances are the most common power quality problem due to this the use of a large
numbers of sophisticated and sensitive electronic equipment in industrial systems is increased. This paper
discusses the design and simulation of dynamic voltage restorer for improvement of power quality and
reduce the harmonics distortion of sensitive loads. Power quality problem is occurring at non-standard
voltage, current and frequency. Electronic devices are very sensitive loads. In power system voltage sag,
swell, flicker and harmonics are some of the problem to the sensitive load. The compensation capability
of a DVR depends primarily on the maximum voltage injection ability and the amount of stored
energy available within the restorer. This device is connected in series with the distribution feeder at
medium voltage. A fuzzy logic control is used to produce the gate pulses for control circuit of DVR and the
circuit is simulated by using MATLAB/SIMULINK software.
Study on the Fused Deposition Modelling In Additive ManufacturingIJERD Editor
Additive manufacturing process, also popularly known as 3-D printing, is a process where a product
is created in a succession of layers. It is based on a novel materials incremental manufacturing philosophy.
Unlike conventional manufacturing processes where material is removed from a given work price to derive the
final shape of a product, 3-D printing develops the product from scratch thus obviating the necessity to cut away
materials. This prevents wastage of raw materials. Commonly used raw materials for the process are ABS
plastic, PLA and nylon. Recently the use of gold, bronze and wood has also been implemented. The complexity
factor of this process is 0% as in any object of any shape and size can be manufactured.
Spyware triggering system by particular string valueIJERD Editor
This computer programme can be used for good and bad purpose in hacking or in any general
purpose. We can say it is next step for hacking techniques such as keylogger and spyware. Once in this system if
user or hacker store particular string as a input after that software continually compare typing activity of user
with that stored string and if it is match then launch spyware programme.
A Blind Steganalysis on JPEG Gray Level Image Based on Statistical Features a...IJERD Editor
This paper presents a blind steganalysis technique to effectively attack the JPEG steganographic
schemes i.e. Jsteg, F5, Outguess and DWT Based. The proposed method exploits the correlations between
block-DCTcoefficients from intra-block and inter-block relation and the statistical moments of characteristic
functions of the test image is selected as features. The features are extracted from the BDCT JPEG 2-array.
Support Vector Machine with cross-validation is implemented for the classification.The proposed scheme gives
improved outcome in attacking.
Secure Image Transmission for Cloud Storage System Using Hybrid SchemeIJERD Editor
- Data over the cloud is transferred or transmitted between servers and users. Privacy of that
data is very important as it belongs to personal information. If data get hacked by the hacker, can be
used to defame a person’s social data. Sometimes delay are held during data transmission. i.e. Mobile
communication, bandwidth is low. Hence compression algorithms are proposed for fast and efficient
transmission, encryption is used for security purposes and blurring is used by providing additional
layers of security. These algorithms are hybridized for having a robust and efficient security and
transmission over cloud storage system.
Application of Buckley-Leverett Equation in Modeling the Radius of Invasion i...IJERD Editor
A thorough review of existing literature indicates that the Buckley-Leverett equation only analyzes
waterflood practices directly without any adjustments on real reservoir scenarios. By doing so, quite a number
of errors are introduced into these analyses. Also, for most waterflood scenarios, a radial investigation is more
appropriate than a simplified linear system. This study investigates the adoption of the Buckley-Leverett
equation to estimate the radius invasion of the displacing fluid during waterflooding. The model is also adopted
for a Microbial flood and a comparative analysis is conducted for both waterflooding and microbial flooding.
Results shown from the analysis doesn’t only records a success in determining the radial distance of the leading
edge of water during the flooding process, but also gives a clearer understanding of the applicability of
microbes to enhance oil production through in-situ production of bio-products like bio surfactans, biogenic
gases, bio acids etc.
Gesture Gaming on the World Wide Web Using an Ordinary Web CameraIJERD Editor
- Gesture gaming is a method by which users having a laptop/pc/x-box play games using natural or
bodily gestures. This paper presents a way of playing free flash games on the internet using an ordinary webcam
with the help of open source technologies. Emphasis in human activity recognition is given on the pose
estimation and the consistency in the pose of the player. These are estimated with the help of an ordinary web
camera having different resolutions from VGA to 20mps. Our work involved giving a 10 second documentary to
the user on how to play a particular game using gestures and what are the various kinds of gestures that can be
performed in front of the system. The initial inputs of the RGB values for the gesture component is obtained by
instructing the user to place his component in a red box in about 10 seconds after the short documentary before
the game is finished. Later the system opens the concerned game on the internet on popular flash game sites like
miniclip, games arcade, GameStop etc and loads the game clicking at various places and brings the state to a
place where the user is to perform only gestures to start playing the game. At any point of time the user can call
off the game by hitting the esc key and the program will release all of the controls and return to the desktop. It
was noted that the results obtained using an ordinary webcam matched that of the Kinect and the users could
relive the gaming experience of the free flash games on the net. Therefore effective in game advertising could
also be achieved thus resulting in a disruptive growth to the advertising firms.
Hardware Analysis of Resonant Frequency Converter Using Isolated Circuits And...IJERD Editor
-LLC resonant frequency converter is basically a combo of series as well as parallel resonant ckt. For
LCC resonant converter it is associated with a disadvantage that, though it has two resonant frequencies, the
lower resonant frequency is in ZCS region[5]. For this application, we are not able to design the converter
working at this resonant frequency. LLC resonant converter existed for a very long time but because of
unknown characteristic of this converter it was used as a series resonant converter with basically a passive
(resistive) load. . Here, it was designed to operate in switching frequency higher than resonant frequency of the
series resonant tank of Lr and Cr converter acts very similar to Series Resonant Converter. The benefit of LLC
resonant converter is narrow switching frequency range with light load[6] . Basically, the control ckt plays a
very imp. role and hence 555 Timer used here provides a perfect square wave as the control ckt provides no
slew rate which makes the square wave really strong and impenetrable. The dead band circuit provides the
exclusive dead band in micro seconds so as to avoid the simultaneous firing of two pairs of IGBT’s where one
pair switches off and the other on for a slightest period of time. Hence, the isolator ckt here is associated with
each and every ckt used because it acts as a driver and an isolation to each of the IGBT is provided with one
exclusive transformer supply[3]. The IGBT’s are fired using the appropriate signal using the previous boards
and hence at last a high frequency rectifier ckt with a filtering capacitor is used to get an exact dc
waveform .The basic goal of this particular analysis is to observe the wave forms and characteristics of
converters with differently positioned passive elements in the form of tank circuits.
Simulated Analysis of Resonant Frequency Converter Using Different Tank Circu...IJERD Editor
LLC resonant frequency converter is basically a combo of series as well as parallel resonant ckt. For
LCC resonant converter it is associated with a disadvantage that, though it has two resonant frequencies, the
lower resonant frequency is in ZCS region [5]. For this application, we are not able to design the converter
working at this resonant frequency. LLC resonant converter existed for a very long time but because of
unknown characteristic of this converter it was used as a series resonant converter with basically a passive
(resistive) load. . Here, it was designed to operate in switching frequency higher than resonant frequency of the
series resonant tank of Lr and Cr converter acts very similar to Series Resonant Converter. The benefit of LLC
resonant converter is narrow switching frequency range with light load[6] . Basically, the control ckt plays a
very imp. role and hence 555 Timer used here provides a perfect square wave as the control ckt provides no
slew rate which makes the square wave really strong and impenetrable. The dead band circuit provides the
exclusive dead band in micro seconds so as to avoid the simultaneous firing of two pairs of IGBT’s where one
pair switches off and the other on for a slightest period of time. Hence, the isolator ckt here is associated with
each and every ckt used because it acts as a driver and an isolation to each of the IGBT is provided with one
exclusive transformer supply[3]. The IGBT’s are fired using the appropriate signal using the previous boards
and hence at last a high frequency rectifier ckt with a filtering capacitor is used to get an exact dc
waveform .The basic goal of this particular analysis is to observe the wave forms and characteristics of
converters with differently positioned passive elements in the form of tank circuits. The supported simulation
is done through PSIM 6.0 software tool
Amateurs Radio operator, also known as HAM communicates with other HAMs through Radio
waves. Wireless communication in which Moon is used as natural satellite is called Moon-bounce or EME
(Earth -Moon-Earth) technique. Long distance communication (DXing) using Very High Frequency (VHF)
operated amateur HAM radio was difficult. Even with the modest setup having good transceiver, power
amplifier and high gain antenna with high directivity, VHF DXing is possible. Generally 2X11 YAGI antenna
along with rotor to set horizontal and vertical angle is used. Moon tracking software gives exact location,
visibility of Moon at both the stations and other vital data to acquire real time position of moon.
“MS-Extractor: An Innovative Approach to Extract Microsatellites on „Y‟ Chrom...IJERD Editor
Simple Sequence Repeats (SSR), also known as Microsatellites, have been extensively used as
molecular markers due to their abundance and high degree of polymorphism. The nucleotide sequences of
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the EFNARC.
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Session Overview
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Generating a custom Ruby SDK for your web service or Rails API using Smithy
Welcome to International Journal of Engineering Research and Development (IJERD)
1. International Journal of Engineering Research and Development
e-ISSN: 2278-067X, p-ISSN: 2278-800X, www.ijerd.com
Volume 6, Issue7 (April 2013), PP.74-79
Modeling and Analysis of 2nd Stage HP Stator Blade using
FEA
Jonna. Swathi1, Tippa Bhimasankara Rao2
1
PG Student, Department of Mechanical Engineering, Nimra Institute of Science and Technology
2
HOD, Department of Mechanical Engineering, Nimra Institute of Science and Technology, Vijayawada, AP, INDIA
Abstract:- Advances in materials, cooling technology and design techniques have allowed MS7001 turbines to
be operated with higher firing temperatures and airflows, which result in higher turbine output and efficiency.
Improvements in combustion technology have also made significantly lower emission levels a reality. Advanced
design technology is usually introduced for new unit production and subsequently applied to customer-operated
gas turbines by a gas turbine uprate program. Many new uprate programs have been introduced for installed GE-
designed heavy duty gas turbines, including the MS7001A, B, C, E, and EA models. Each uprate program
provides increased output, improved heat rate and efficiency, improved reliability, reduced maintenance costs,
longer inspection intervals, and longer expected parts lives. Additional benefits result because uprates are based on
current production components parts that are not specifically unique to older machines and thus readily available.
This Project deals with about 2nd Stage HP stator blade. 3D model of blade is done CATIA by taking point data,
Meshed in Hyper mesh and Analysis done in ANSYS. Structural analysis is carried on Blade as per given load
condition by varying material properties. Study of process making of Blade is studied.
Keywords: -Rotor, Stator.
I. INTRODUCTION
Today‟s requirements of advanced steam turbine design place special emphasis on the design simplicity, fewer
parts, enhanced reliability and maintainability. Such requirements, when coupled with the ever-increasing demand on the
higher efficiency level for both existing and new design concepts, offer the most challenging problem to the design
engineers. Modern turbine-design entails integrated program system, which accounts for many of the above design
requirements from the very beginning of a project and allows the best compromise satisfying the specified constraints to be
reached. The principal target is to reduce the design-cycle-time quite drastically, and to enable the designers to perform
conceptual studies for any desired ranges of design parameters whilst maintaining the highest level of design quality and
reliability. Regarding fine-tuning in the final design stage, hitherto the benefits taken from advances in computational fluid
dynamic (CFD) to boost the stage efficiency are quite significant. The improvements were, however, mainly achieved in the
standard aerodynamic flow path design to the point where further potential for efficiency improvement on such issues seems
to be relatively small. However, as part of continuing technological advance towards the design of new generations of highly
efficient turbines, significant efforts have to be concentrated on a number of design details on components placed outside the
standard blading flow channel where still some room is left for further efficiency improvement.
II. TYPES OF TURBINES AND DESCRPTION
There are two types of turbines:
HP TURBINE: The axial flow, two-stage reaction type HP Turbine was designed to deliver high efficiency over a
broad power range. It consists of two turbine wheels, first and second stage turbine nozzle assemblies, and turbine
casings. Both stages of HPT nozzles are air cooled (convection and film) by compressor discharge air flowing
through each vane. Both stages of HPT buckets are cooled by compressor air flowing through the dovetail and
shanks into the buckets.
LP TURBINE: The power turbine uses the same general arrangement, materials and mechanical structure as that
of the GE Oil & Gas PGT25+ model whose installed fleet consists of over 80 units and more than 500,000
operating hours. The flow-path profile and airfoils were redesigned to allow 20% higher airflow than the PGT25+.
Turbine uprate packages have been introduced because of strong customer interest in extending intervals
between maintenance, improving efficiency, and increasing output. The main items that must be considered when
evaluating a unit for an advanced technology uprate option are as follows
Performance Improvements (Output/Heat Rate)
Maintenance/Inspection Interval Extensions
Availability/Reliability Improvements
Emissions Reduction/Regulatory Agencies
Life Extension
This paper covers new uprates that have been successfully developed using engineered components developed for current
new unit production. Uprate benefits are discussed, including turbine performance and maintenance improvements. Each
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2. Modeling and Analysis of 2nd Stage HP Stator Blade using FEA
owner of GE heavy-duty gas turbines should evaluate the economics of the various uprates for the specific application. In
many cases, the economic evaluation will justify one of the available uprates at the next major overhaul and, in some cases,
earlier. When more power generating capacity is required, uprating can provide a cost-effective alternative to purchasing and
installing new units. At the same time, the improved parts can provide extended life to the existing turbine.
Fig.1 the MS7001EA simple-cycle single-shaft, heavy-duty gas turbine.,Fig.2 7EA HGP and rotor materials
Many improvements have been made to the current production 7EA in the above figure that can be utilized in older fielded
units. Combustion systems, turbine buckets, nozzles, and compressor components have been redesigned using improved
materials that increase component life and reduce repairs. While GE moves forward to address marketplace needs, it will
continue to improve its products and serve as a world-class high quality supplier of power generation equipment. As a leader
in the gas turbine industry, GE is committed to applying the latest available technology parts to the large installed base of
GE-designed gas turbines.
III. THE MAJOR COMPONENTS AND SYSTEMS OF A GAS TURBINE
GENERATOR SET INCLUDE
Gas turbine
Reduction-drive gear box
Generator
Start system
Fuel system
Lubricating oil system
Turbotronic for control system
On skid electrical wiring
Skip with drip pads
Piping and manifolds
IV. PROCEDURE STEPS IN MANUFACTURING OF 2ND STAGE CSB, HPC BLADE
Billet: At this stage stamping of billet as per 104.03TY16 with cold rolled aerofoil. Profile allowance is
proportional in all the sections with coefficient deformations. As per the technology additionally equidistant in
A1-A1 section on concave by 0.1mm and on convex by 0.4mm with smooth transition up to 0.1mm on concave
and convex in the final section.
Milling: It is used to mill the neck and aerofoil tip by maintaining dimensions.
Centering: Centering has to be done on the blade profile by dividing in to sections along vertical and horizontal
direction , then carry out the centering of the faces of the part simultaneously by maintaining desired dimensions .
Inspection: Check the aerofoil profile in the device pompkol-4 with block by randomly selection of 10% of parts
of the beverage. Displacement of aerofoil profile parallel to x-x axis in section A1 and A2 0.25 mm max in all
other sections 0.35mm max. Difference in edges thickness in sections A1 and A2 0.1mm max.
Filling: Here we are using cero band filling by placing the scaling gasket on the neck of the blade. Load the part in
the cartridge and fasten it. Carry out the filling of part by alloy BУД. Cooling of cartridge in air until the hardening
of alloy BУД. Carryout the subsequent cooling in the running waste. Disassemble the cartridge and take out the
briquette.
Turning: Turning is used for root preparation; it has to be done on the face of the neck of the blade .Here we have
to take in to consider of non-perpendicularity surface relative to surface B 0.03max. Face run-out of surface
relative to B0.05mm max. Ensure by machines in one section. Displacement of placement π from the design
portions parallel to axis X and Y 0.1mm max and non-perpendicularity of surface π relative to the plane X –Y at
the length of 100 mm -0.01mm max. Before starting the centers of fixture and tailstock of machine up to 0.02mm
along the mandrel.
Smelting: It has to be done by putting the briquettes in the basket and lower in the tub fill it hot water. After the
full removal of BУДA.. Take out the part and wash the parts in the hot water. Blow off the part by air until full
removal of moisture put the blade in the container. Now again milling has to be done on both sides of surfaces of
shroud from concave and convex sides flush with aerofoil profile by maintain the dimensions. Projection of
machined surfaces relative basic profile should be within the limits of 0.1…0.3mm. Digging is not permitted.
Trimming: It is nothing but removal of unwanted materials of edges and burrs. Check the quality of re-sharpening
of cutting surfaces of die. Inspection should be carried out before starting the operation, the contour of aerofoil
should be cut incase of quality of surface of parts not matching with inspection etalon i.e. finishing of edges and
75
3. Modeling and Analysis of 2nd Stage HP Stator Blade using FEA
excess of burr. Carry out the re-sharpening of cutting surfaces. Radius of indicator E6015-6906. Let at „0‟ at any
section of blade at inlet and outlet edges should not be more than + or – 0.1mm. On the end of face of pair of
blades not more than -0.2mm.
Fatigue test: This instruction gives the order for the periodic inspection on fatigue for the finally manufactured
aerofoil of the compressor blades of the engine AL31FP. This instruction determines the order of test procedure
for checking the stability of manufacturing technology of the blades. The technology documentation for
conducting the fatigue tests is developed according to the given instruction.
V. MODELLING AND ANALYSIS
Fig.3 Model of HP stator blade Table.1 Inputs given for the model
Fig.4 Meshing of model in ANSYS Fig.5 Applying loads in ANSYS
VI. RESULTS AND DISCUSSIONS
Static Structural Analysis of blade
Table.2 static analysis of blade
CASE 1: For Alloy-Steel
Fig.6 Stress values Fig.7 Deformation values
CASE 2: For Ni-Alloy
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4. Modeling and Analysis of 2nd Stage HP Stator Blade using FEA
Fig.8 Stress values Fig.9 Deformation values
CASE 3: For Titanium
Fig.10 Stress values Fig.11 Deformation values
Harmonic Analysis of blade
Table.3 Harmonic analysis of blade
Fig.12 CASE 1: For Alloy-Steel Fig.13 CASE 2: For Ni-Alloy Fig.14 CASE 3: For Titanium
Modal Analysis of the blade
Case 1: For Alloy Steel
Table.4 Natural frequencies of Alloy steel blade
Fig.15, 16, 17, 18, 19&20 Different mode shapes of the Alloy steel blade
77
5. Modeling and Analysis of 2nd Stage HP Stator Blade using FEA
Case 2: For Ni-Alloy
Table.5 Natural frequencies of Ni-Alloy blade Fig.21 Graph for modal analysis
Fig.22, 23, 24, 25, 26&27 Different mode shapes of the Ni-Alloy blade
Case 3: For Titanium
Table.6 Natural frequencies of Titanium-Alloy blade Fig.28 Graph for modal analysis
78
6. Modeling and Analysis of 2nd Stage HP Stator Blade using FEA
Fig.29, 30, 31, 32, 33&34 Different mode shapes of the Titanium-Alloy blade
Results obtained
Table.7 Obtained results
VII. CONCLUSION
By doing the analysis of 2nd stage hp stator blade with different materials we can observe that the stress induced is more in
Alloy-Steel compared to other two materials of Ni-Alloy & Titanium by considering the cost and availability of materials
Alloy-steel is more preferable than Titanium or we may use Ni-Alloy instead of Alloy-Steel. And the deformation is
observed more in Titanium compared to Alloy-Steel & Ni-Alloy so by seeing the results after analysis Alloy-Steel is best
material for 2nd stage hp stator blade and further we may use Ni-Alloy instead of it.
VIII. REFERENCES
[1]. Beltran, A.M., Pepe, J.J., Schilke, P.W., “Advanced Gas Turbines Materials and Coatings,” GER-3569E, GE
Energy, August 1994.
[2]. Brandt, D.E., and Wesorick, R.R., “GE Gas Turbine Design Philosophy,” GER-3434D, GE Energy, August 1944.
[3]. Brooks, F.J., “GE Gas Turbine Performance Characteristics,” GER- 3567E, GE Energy, August 1994.
[4]. Davis, L.B., “Dry Low NOx Combustion Systems for Heavy-Duty Gas Turbines,” GER-3568E, GE Energy,
August 1994.
[5]. Johnston, J.R., Robert, “Performance and Reliability Improvements for Heavy-Duty Gas Turbines,” GER-3571E,
GE Energy, August 1994.
[6]. Junge, R.M., “The MS7001E Heavy-Duty Gas Turbine,” Gas Turbine Engineering and Manufacturing
Department, Gas Turbine Division, Schenectady, NY, 1979.
[7]. Kelley, L.A., Luessen, H.P., “Uprate Options for the MS7001 and MS9001 Gas Turbines,” GER-3667, GE
Energy, 1991.
[8]. P. LAMPART1, Ł. HIRT2 on Complex multidisciplinary optimization of turbine blading systems.
[9]. R. Greim, S. Havakechian on Recent advances in the aerodynamic design of steam turbine components.
[10]. JERZY SWIRYDCZUK on UNSTEADY PERFORMANCE OF AN HP TURBINE STAGE OPTIMISED FOR
STEADY FLOW CONDITIONS.
[11]. Menter F R 1994 AIAA Journal 32 1598.
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