F110-GE-132: Enhanced Power Through Low-Risk Derivative Technology

2000 ◽  
Vol 123 (3) ◽  
pp. 544-551 ◽  
Author(s):  
A. R. Wadia ◽  
F. D. James
Keyword(s):  
Power Management ◽  
High Efficiency ◽  
Model Development ◽  
Low Risk ◽  
Historical Background ◽  
Test Results ◽  
Design Development ◽  
Engine Model ◽  
Risk Approach ◽  
Qualification Testing

The F110-GE-132, originally referred to as the F110-GE-129 EFE (Enhanced Fighter Engine), presently undergoing qualification testing, is being offered at two different thrust/inspection levels with a maximum augmented thrust of 34,000 pounds. The EFE has been developed using low-risk derivative engine technology. It features a new increased airflow, high efficiency, three-stage long chord blisk fan, and an advanced radial augmentor that reduces complexity, improves maintainability, and provides increased parts life. The paper first provides a historical background of the F110 engines to relate the heritage of the F110-GE-132. The F110 engine model development roadmap is shown to illustrate the incremental low-risk approach used to provide thrust growth with improved product reliability. A detailed description of the unique power management features of the EFE engine to meet individual customer thrust and life requirements is outlined. The long chord blisk fan design, development, and test results are presented, followed by a description of the radial augmentor and the exhaust nozzle. The EFE engine has successfully completed sea level static and altitude development testing and fan aero mechanical qualification at the AEDC in Tullahoma, Tennessee.

F110-GE-129 EFE — Enhanced Power Through Low Risk Derivative Technology

2000 ◽  
Author(s):  
A. R. Wadia ◽  
F. D. James
Keyword(s):  
Power Management ◽  
High Efficiency ◽  
Model Development ◽  
Low Risk ◽  
Historical Background ◽  
Test Results ◽  
Design Development ◽  
Engine Model ◽  
Risk Approach ◽  
Qualification Testing

The F110-GE-129 EFE (Enhanced Fighter Engine), presently undergoing qualification testing, is being offered at two different thrust/inspection levels with a maximum augmented thrust of 34,000 pounds. The EFE has been developed using low risk derivative engine technology. It features a new increased airflow, high efficiency, three-stage long chord blisk fan and an advanced radial augmentor that reduces complexity, improves maintainability and provides increased parts life. The paper first provides a historical background of the F110 engines to relate the heritage of the F110-GE-129 EFE. The F110 engine model development roadmap is shown to illustrate the incremental low risk approach used to provide thrust growth with improved product reliability. A detailed description of the unique power management features of the EFE engine to meet individual customer thrust and life requirements is outlined. The long chord blisk fan design, development and test results are presented followed by a description of the radial augmentor and the exhaust nozzle. The EFE engine has successfully completed sea level static and altitude development testing and fan aero mechanical qualification at the AEDC in Tullahoma, Tennessee.

A Comparative Study of Data and Physically Based Gas Turbine Modeling for Long-Term Monitoring Scenarios: Part II — Emission Prediction Utilizing Different Levels of Design Information

2018 ◽  
Author(s):  
Moritz Lipperheide ◽  
Thomas Bexten ◽  
Manfred Wirsum ◽  
Martin Gassner ◽  
Stefano Bernero
Keyword(s):  
Gas Turbine ◽  
A Priori ◽  
Model Development ◽  
Fine Tuning ◽  
Plant Operator ◽  
Engine Model ◽  
Physically Based ◽  
Design Type ◽  
The Impact

Reliable engine and emission models allow for an online monitoring of commercial gas turbine operation and help the plant operator and the original equipment manufacturer (OEM) to ensure emission compliance of the aging engine. However, model development and validation require fine-tuning on the particular engines, which may differ in a fleet of a single design type by production, assembly and aging status. For this purpose, Artificial Neural Networks (ANN) offer a good and fast alternative to traditional physically-based engine modeling, because the model creation and adaption is merely an automatized process in commercially available software environments. However, ANN performance depends strongly on the availability of suitable data and a-priori data processing. The present work investigates the impact of specific engine information from the OEM’s design tools on ANN performance. As an alternative to a strictly data-based benchmark approach, engine characteristics were incorporated into ANNs by a pre-processing of the raw measurements with a simplified engine model. The resulting ‘virtual’ measurements, i.e. hot gas temperatures, then served as inputs to ANN training and application during long-term gas turbine operation. When processed input parameters were used for ANNs, overall long-term NOx prediction improved by 55%, and CO prediction by 16% in terms of RMSE, yielding comparable overall RMSE values to the physically-based model.

Estimation of Performance Variation of Coal Fired Boilers Cofired With Biomass: Development of a Predicting Tool

2006 ◽  
Author(s):  
Sudipta De ◽  
Mehrzad Kaiadi ◽  
Mohsen Assadi
Keyword(s):  
Customer Service ◽  
Pilot Plant ◽  
Model Development ◽  
Test Results ◽  
Performance Variation ◽  
Future Improvement ◽  
Pilot Plant Test ◽  
Plant Test ◽  
Biomass Cofiring ◽  
Available Information

Biomass cofiring in existing coal fired boilers has emerged as one of the most prospective technologies in order to address voluntary reduction of green house gases and other emissions, potential portfolio standards, customer service etc. within the context of deregulations. Pilot plant test results have confirmed the potential of biomass cofiring with coal for commercial use. However, being a new and developing technology, there is hardly any tool available for estimation of variation in performance of an existing coal fired boiler due to its retrofitting for biomass cofiring. A predicting tool is developed to estimate this performance variation using available information of pilot plant test results in literature or from data of plant operating with biomass. In order to incorporate future available information, this is developed in a flexible environment of Model Development Kit (MDK) of IPSEpro, a commercially available heat and mass balance program. Development of the models for this predicting tool as well as its limitations and possible future improvement has been discussed in this paper. Some results regarding estimation of change in efficiency, emissions and associated costs using this developed predicting tool has been presented.

scholarly journals Perancangan E-Modul “ALKI” Pada Mata Pelajaran Kimia Bagi Siswa Kelas X Berbasis Mobile di SMAN 1 Mapat Tunggul

2021 ◽  
Vol 6 (2) ◽  
pp. 93-104
Author(s):  
Aisyah Amini ◽  
Riri Okra
Keyword(s):  
Mobile Application ◽  
Development Stage ◽  
Test Results ◽  
Research Model ◽  
Design Development ◽  
Process Testing ◽  
Development Life Cycle ◽  
Multimedia Development ◽  
The Media ◽  
Chemical Materials

ALKI is an e-module that serves as a learning medium for grade X students majoring in MIA at SMAN 1 MAPAT TUNGGUL. E-module ALKI was created with the aim of assisting teachers in delivering materials and helping students understand more about chemical materials by repeating lessons, working on exercises, and strengthening memory by playing flashcards. The thing behind the design of alki e-module is the lack of motivation to learn students, difficulty and the absence of internet network in Mapat Tunggul area, students should not take home the package book, the smartphone owned by students is not used to study, and when doing homework with the help of the internet most students just copy the answer without understanding the origin of the answer. This research method is Research and Development (R&D) with a 4-D research model (four-D) that is with define, Design, Development, and Disseminate stages. In the Development stage, the development stage of ALKI e-module media is carried out. The media development model used in this study is MDLC(Multimedia Development Life Cycle) luther-sutopo version which consists of 6 stages, namely conception, design, material collection, manufacturing process, testing and distribution. The result of the research is a mobile-based ALKI e-module product. With 0.81 validity test results declared valid,0.93 Practicality test results are practiced very practically,and 0.80 effectiveness test results are declared very effective. So, it can be concluded that alki e-module based on mobile application as a learning medium has been valid, practical and effective.

scholarly journals The use of the method of controlling the electrochemical parameters of aqueous solutions to combat complications in the operation of oil field pipelines

2021 ◽  
Vol 225 ◽  
pp. 01008
Author(s):  
Oleg Latypov ◽  
Sergey Cherepashkin ◽  
Dina Latypova
Keyword(s):  
Aqueous Solutions ◽  
Oil And Gas ◽  
High Efficiency ◽  
Oil Field ◽  
Oil Fields ◽  
Control Methods ◽  
Test Results ◽  
Chemical Reagents ◽  
Electrochemical Parameters ◽  
Very High

Corrosion of equipment in the oil and gas complex is a global problem, as it contributes to huge material costs and global disasters that violate the environment. Corrosion control methods used to protect equipment do not always ensure the absolute safety of the operation of oil and gas facilities. Moreover, they are quite expensive. The developed method for controlling the electrochemical parameters of aqueous solutions to combat complications during the operation of oil-field pipelines provides the necessary protection against corrosion. The method is economical and environmentally friendly, since it does not require the use of chemical reagents. The test results have shown a very high efficiency in dealing with complications in oil fields.

scholarly journals Microgrids: The agria test location

2010 ◽  
Vol 14 (3) ◽  
pp. 747-758 ◽  
Author(s):  
Aleksandra Krkoleva ◽  
Verica Taseska ◽  
Natasa Markovska ◽  
Rubin Taleski ◽  
Vesna Borozan
Keyword(s):  
Treatment Process ◽  
Low Voltage ◽  
Waste Water Treatment ◽  
Test Results ◽  
Design Development ◽  
Water Treatment Process ◽  
Western Balkan Region ◽  
Pig Farm ◽  
Balkan Region ◽  
Test Scenarios

The paper presents the pilot Microgrid in Macedonia, developed within the framework of the MOREMICROGRIDS (EU EP6 projecet, contract No. SES6-019864) project. This Microgrid is the first of its kind being developed in the Western Balkan region and serves as pilot site for introduction and examination of the Microgrids concept in non European Union conditions. The test network consists of a part of the low voltage grid, located on a pig farm. The main electricity source for the Microgrid is a small biogas plant, which uses the biogas produced by a waste water treatment process. The paper addresses the Microgrid design, development of test scenarios and test results from the pilot location.

scholarly journals Load characteristics of three-plunger pumps for spray seawater fire-fighting

2020 ◽  
pp. 142-146
Author(s):  
В.А. Наумов ◽  
Н.Л. Великанов ◽  
А.В. Тришина
Keyword(s):  
Satisfactory Agreement ◽  
Test Data ◽  
High Efficiency ◽  
Measurement Data ◽  
Fire Fighting ◽  
Test Results ◽  
Hydraulic Characteristics ◽  
Fire Extinguishing ◽  
Load Characteristics ◽  
Low Pressures

Цель статьи – получить эмпирические зависимости для характеристик трехплунжерных противопожарных насосов (ТПН), необходимые для автоматизации расчетов систем тушения пожаров на судах с применением распыленной морской воды. Задачи исследования: проверка непротиворечивости данных испытаний; определение расчетных зависимостей производительности ТПН, к.п.д., затраченной мощности от давления. Проведенный анализ результатов испытаний ТПН подтвердил возможность использования предложенных зависимостей в инженерных расчетах. Данные измерений удовлетворительно согласуются с результатами расчетов, за исключением к.п.д. Отклонение экспериментальных точек от эмпирических зависимостей, скорее всего, связано с занижением значений затраченной мощности на испытаниях при небольших давлениях. Предложено для оценки к.п.д. использовать ранее полученную типовую зависимость. Построены графики для характеристик насоса NP25/41-170S. Пример расчета рабочей точки насосной установки с использованием приближенной гидравлической характеристики водяной пожарной системы судна показал высокую эффективность предложенных методик. The purpose of the article is to obtain empirical dependences for the characteristics of three-plunger fire-fighting pumps (TFP), which are necessary for automating calculations of fire extinguishing systems on ships using sprayed seawater. Research objectives: checking the consistency of test data; determining the calculated dependences of the TFP performance, efficiency, power expended on pressure. The analysis of the TFP test results confirmed the possibility of using the proposed dependencies in engineering calculations. The measurement data are in satisfactory agreement with the results of calculations, with the exception of efficiency. The deviation of experimental points from the empirical dependences is most likely due to an underestimation of the power consumed during tests at low pressures. It is proposed to use the previously obtained typical dependence to estimate the efficiency. Graphs are plotted for the characteristics of the NP25/41-170S pump. An example of calculating the working point of a pumping unit using the approximate hydraulic characteristics of the ship's water fire system showed the high efficiency of the proposed methods.

scholarly journals Pengembangan Modul Statistika sebagai Media Penunjang Mata Kuliah Institusi di IKIP Budi Utomo Malang

2016 ◽  
Vol 22 (1) ◽  
pp. 13-20
Author(s):  
Rina Wijayanti ◽  
Siti Napfiah
Keyword(s):  
Data Collection ◽  
Evaluation Methods ◽  
Research Development ◽  
Test Results ◽  
Design Development ◽  
Development Method ◽  
Implementation Evaluation ◽  
Analysis Design ◽  
Cover Design ◽  
Test Module

This research aims to produce products such as module, which supporter statistics courses in IKIP Budi Utomo Malang institutions. It can be used to enhance the students' ability to solve problems. This research development method using ADDIE models which include analysis, design, development, implementation, evaluation. Methods of data collection in this study include legibility test. Results of this study we concluded the step wrote statistics module that determining competency standards, specify the title of the module, arrange the contents of the module, cover design, legibility test, revision and production. Based on the conclusion that thelegibility test for aspects of language, presentation, and graphic declared valid while the worthiness aspect of the module is very valid. So based on student legibility test module does not need to be revised. 

scholarly journals Development of Learning Tools by Application of Problem Based Learning Models to Improve Mathematical Communication Capabilities of Sequence and Series Materials

2020 ◽  
Vol 4 (1) ◽  
pp. 62
Author(s):  
Nur Atika ◽  
Yenita Roza ◽  
Atma Murni
Keyword(s):  
Communication Skills ◽  
Problem Based Learning ◽  
Development Research ◽  
Learning Tools ◽  
Test Results ◽  
Design Development ◽  
Learning Models ◽  
Mathematical Communication ◽  
Analysis Design ◽  
Better Than

This research was motivated by the lack of learning tools that can improve students' Mathematical Communication Skills (KKM). Activities that can encourage students to improve KKM have not been designed by the teacher in the learning device properly. This study aims to produce learning tools by applying Problem Based Learning models to improve KKM. This development research used the ADDIE development model with the stages of Analysis, Design, Development, Implementation, and Evaluation. The results of Syllabus, RPP, LKPD and KKM validation results showed highly valid criteria with percentages of 91.67%, 91.30%, 89.09%, and 87.15%, respectively. Practicality results indicate a very practical criterion with the percentage of small group trials at 95.57%, large group trials at 96.07%, and teacher responses at 96.25%. The effectiveness test results state that KKM of students who use learning tools with PBL models is better than KKM of students who use conventional learning.

scholarly journals Comparison of two caries prevention programs among Thai kindergarten: a randomized controlled trial

2020 ◽  
Author(s):  
Pagaporn Pantuwadee Pisarnturakit ◽  
Palinee Detsomboonrat
Keyword(s):  
High Risk ◽  
Controlled Trial ◽  
Low Risk ◽  
Kindergarten Children ◽  
Primary Molar ◽  
Permanent Molar ◽  
Carious Lesions ◽  
Caries Increment ◽  
Risk Approach ◽  
Clinical Trials Registry

Abstract Background: Intensified preventive regimen based on a ‘high-risk’ approach has been proposed instead the routine prevention that is generally given to the whole population. The effectiveness of these regimens may still be an issue. Therefore, the aim of this study was to compare two preventive programs carried out in a Public School for kindergarten children. Methods: The data from clinical examinations were used to assess the caries risk for 121 children. Children with at least 2 carious lesions were considered as high risk for dental caries development. These children were randomized into two groups. Half (High risk basic-HRB group) were provided the basic prevention regimen (oral-hygiene instruction and hands-on brushing practice for teachers and caregivers, daytime tooth brushing supervised by teachers at least once a week, newly erupted first permanent molar sealant, provision of toothbrush, fluoride-containing dentifrice, and a guidebook), which was also given to low-risk children (Low risk basic-LRB group). The other half (High risk intensive-HRI group) were additionally given an intensified preventive regimen (F-varnish application, primary molar sealant, and silver diamine fluoride (SDF) application on carious lesions). Clinical examinations were performed semiannually to determine the dmfs caries increment of the three groups. Results: The 89 children completed the 24-month examination were 3- to 5-year-old with 19, 35, and 35 children in the LRB, HRB, and HRI group, respectively. The new caries development at 24 months of the HRB group (75%) was higher than that of the HRI group (65.7%) and the LRB group (21.1%). One-way analysis of variance (ANOVA) indicated no significant differences of caries increment between the HRB and HRI groups at the end of our study ( p =0.709). Conclusions: The negligible difference in caries increment between the HRI and HRB groups implies that intensified prevention produced minimal additional benefit. Offering all children only basic prevention could have obtained virtually the same preventive effect with substantially less effort and lower cost. Trial registration: Thai Clinical Trials Registry (TCTR), TCTR20180124001. Registered 24 January 2018 - Retrospectively registered, https://www.clinicaltrials.in.th/TCTR20180124001.

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