Your Selections

Turboprop engines
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Committees

Events

Magazine

 

Advanced Exergy Analysis of an Air Craft Gas Turbine Engine at Different Power Loading Operations.

GIFT, Bhubaneshwar-Alok Kumar Mohapatra
VIT Universtity Vellore-Tapano Hotta
  • Technical Paper
  • 2019-01-1863
To be published on 2019-09-16 by SAE International in United States
The innovations in aircraft propulsion have been identified as the key parameter towards the progress in transportation. Continuous advancement in the performance and efficiency of propulsion has enabled aircraft to travel over larger distances with higher speed. Aviation is also responsible for approximately 2% of total greenhouse gases emission and is expected to grow around 3% by 2050. The present study aims to use the exergetic analysis of a turboprop engine which should be helpful in designing of such engines and also helps these engine users to regulate and select the operation modes. A gas turbine with film air cooling of turbine blades has been proposed to be the turboprop engine. The engine is analyzed on exergy point of view at different power loading operation modes and the performance is studied. Selected exergetic measures under consideration are Exergy Efficiency, Fuel Exergy Depletion Ratio, Relative Exergy Consumption Ratio, Exergetic Improvement potential and Productivity Lack ratio. The total fuel exergy depletion ratio of the turboprop engine is estimated to be around 44%. . Also, among the identified…
 

Design Considerations for Enclosed Turboprop Engine Test Cells

EG-1E Gas Turbine Test Facilities and Equipment
  • Aerospace Standard
  • AIR5295A
  • Current
Published 2018-11-21 by SAE International in United States
This document is offered to provide state-of-the-art information about design factors that must be considered in the design of new or significantly modified engine test cells used to test propeller equipped turboprop engines in either QEC or bare engine configurations. The report does not address design considerations for test cells designed to test turboprop engines with dynamometer type load absorption devices because they are essentially tested as turboshaft engines. Design considerations for those test cells are presented in AIR4989, Reference 2.1.
Datasets icon
Annotation icon
 

Thermodynamic Modeling of Blade Cooled Turboprop Engine Integrated to Solid Oxide Fuel Cell: A Concept

GVP College of Engineering-Mithilesh Kumar Sahu
NIT Bhubaneswar-Alok Mohapatra
Published 2018-04-03 by SAE International in United States
In modern turboprop engines, reduction in emission and fuel consumption is the primary goals during the development of gas turbine aero engines. In this paper, a concept has been proposed for hybridizing the air blade cooled turboprop engines by integrating it with a fuel cell. The proposed study focuses on thermodynamic analysis of a turboprop engine integrated to a solid oxide fuel cell (SOFC) system. A solid oxide fuel cell is the perfect candidate for utilizing waste heat available at turboprop engine exhaust, through recuperation process. Integration of SOFC is ultimately leads to enhancement the overall performance of the turboprop-SOFC hybrid system. Power generated by the SOFC system can be utilized by the aircraft and in can complement the auxillary-power-unit (APU) and may even supplement it. On the basis of 1st and 2nd law of thermodynamic modeling analysis of a turboprop-SOFC system has been presented in this article. The adopted turboprop engine has operated under a wide range of operating conditions. Parametric analysis has been performed, to investigate the influence of various parameters such as…
Datasets icon
Annotation icon
 

Thermoeconomic, Sustainability and Environmental Damage Cost Analysis of Air Cooled CT7-7A Turboprop Engine

GVP College of Engineering-Mithilesh Kumar Sahu
National Institute of Tech Jamshedpur-Sanjay R
Published 2018-04-03 by SAE International in United States
The aim of this study is to investigate the overall performance (exergetic, exergoeconomic and exergoenvironmental) of CT7-7A turboprop engine manufactured by General Electric Aviation (GE Aviation) and currently used to power CN-235, a medium range transport aircraft. The investigation has been carried out using the thermoeconomic, sustainability and environmental damage cost analysis methods. The adopted turboprop engine has been investigated to observe the behaviour of various performance parameters, sustainability, emission parameters as well as cost parameters of engine. Due to ever increasing demand in air transport systems, focus has been on developing efficient and sustainable systems with lowest possible cost. In order to reduce cost & environmental effects of engine and at same time to acquire higher performance, it is necessary to understand the mechanism that can offer improvements in the engine operating and design parameters so that higher performance can be obtained. Exergetic sustainability parameters such as exergetic efficiency, exergy loss and destruction ratio, environmental damage cost, sustainability index and sustainability cost index play an important role on choice of suitable aircraft engine for…
Datasets icon
Annotation icon
 

Test Facility Shakedown and Commissioning

EG-1E Gas Turbine Test Facilities and Equipment
  • Aerospace Standard
  • AIR6364
  • Current
Published 2017-11-29 by SAE International in United States
The paper discusses in general terms the activities required to be undertaken or demonstrated during the establishment of the facility such as: the assessment checks prior to forwarding to the end users site for embodiment into the facility system the establishment of the facility such as trial installations of hardware, functionality checking of lifting transportation and access systems, centerline pull checks, pressure testing of fuel and air start systems, flushing of wet systems and electrical continuity checking. the commissioning of the facility such as instrumentation calibrations, engine starts, engine running, assessment of command and control system, assessment of DAS system, aerodynamic and acoustic surveys. The paper will concentrate on the main engineering engine related aspects of the facility and will not necessarily contain information on the construction validation activities such as HVAC, electrical, facility fire system, waste water etc. Risk analysis may be performed during the design phase whose results could lead to pay particular attention to some specific equipment / functionalities during the commissioning phase. If identified, these risks should be translated to specific…
Datasets icon
Annotation icon
 

Installed Outdoor Engine Testing

EG-1E Gas Turbine Test Facilities and Equipment
  • Aerospace Standard
  • AIR5301A
  • Current
Published 2017-11-29 by SAE International in United States
This SAE Aerospace Information Report (AIR) was written because of the growing interest in aircraft installed outdoor engine testing by the Federal Aviation Administration, airlines, charter/commercial operators, cargo carriers, engine manufacturers and overhaul and repair stations. This document was developed by a broad cross section of personnel from the aviation industry and government agencies and includes information obtained from a survey of a variety of operators of fixed and rotary wing aircraft and research of aircraft and engine maintenance manuals.
Datasets icon
Annotation icon
 

Exergoeconomic Analysis of Air Cooled Turboprop Engine: Air Craft Application

SAE Member-Mithilesh Kumar Sahu, Sanjay Y
VIT University Bhopal-Tushar Choudhary
Published 2017-09-19 by SAE International in United States
Aircraft engines powering propulsion of the aircraft is the key component of the system. In aircraft industry it is desirable that an aircraft engines should supply high speeds (for military fighters) with low maintenance (for civil airplanes). In this regard an integration of gas turbine engines with traditional propeller has been introduced and termed as turboprop engine. In present work, a gas turbine with cooled blading has been proposed to be the turboprop engine which has been exergoeconomically analyzed to assess the performance and economics related to the proposed turboprop engine. Exergo-economic analysis is a tool which combines thermodynamic analysis and economic principles to provide information that is helpful to predict thermodynamic performance and total cost of the engine (thermal system). The methodology includes energy, exergy and cost balance equations for component-wise modelling of whole system. “Average Cost Theory” (Levelized cost) approach has been adopted to analyze the entire system exergoeconomically. The work represents the characteristics curves for exergoeconomic parameters that show graphical relationship between the engine operating parameters and exergoeconomic parameters. Present study also…
Datasets icon
Annotation icon
 

Design, Calibration, and Test Methods for Turbine Engine Icing Test Facilities

EG-1E Gas Turbine Test Facilities and Equipment
  • Aerospace Standard
  • AIR6189
  • Current
Published 2017-09-15 by SAE International in United States
This SAE Aerospace Information Report (AIR) provides descriptions of test procedures and established practices for the application, use, and administration of the conduct of icing testing for all types of turbine engines in conventional supercooled liquid (14 CFR Part 25 Appendix C) environmental conditions in ground test facilities (sea-level and altitude) for icing certification purposes.
Datasets icon
Annotation icon
 

Turboshaft/Turboprop Gas Turbine Engine Test Cell Correlation

EG-1E Gas Turbine Test Facilities and Equipment
  • Aerospace Standard
  • ARP4755C
  • Current
Published 2016-09-14 by SAE International in United States
This paper describes a recommended practice and procedure for the correlation of test cells that are used for the performance testing of turboprop and turboshaft engines. This Aerospace Recommended Practice (ARP) shall apply to both dynamometer and propeller based testing. Test cell correlation is performed to determine the effect of any given test cell enclosure and equipment on the performance of an engine relative to the baseline performance of that engine. Although no original equipment manufacturer (OEM) documents are actually referenced, the experience and knowledge of several OEMs contributed to the development of this document. Each engine manufacturer has their own practices relating to correlation and they will be used by those OEMS for the purpose of establishing certified test facilities.
Datasets icon
Annotation icon
 

GE's clean-sheet turboprop engine to launch with Textron Aviation

MOBILITY ENGINEERING: March 2016

Jean L. Broge
  • Magazine Feature Article
  • 16MEIP03_08
Published 2016-03-01 by SAE International in United States

Textron Aviation has opted for GE Aviation's all-new turboprop engine to power its single engine turboprop (SETP). The 1300 shaft horsepower (SHP)-rated turboprop engine will be the first entry in GE's new family of turboprop engines designed specifically for business and general aviation aircraft in the 850- to 1600-SHP range.