Criteria

Text:
Topic:
Display:

Results

Viewing 1 to 30 of 3467
2016-10-17
Technical Paper
2016-01-2228
Mithilesh Kumar Sahu, Tushar Choudhary, Sanjay Y
Global energy scenario requires thermal systems with high thermal efficiency and low capital and operating cost. The paper deals with the thermoeconomic analysis of the gas turbine cycles with possible application as marine gas turbines. A thermoeconomic analysis is a combined study of thermodynamic and economic parameters of proposed energy conversion cycle. In present paper gas turbine of suitable configuration has been analysed. Different configurations of gas turbine have been analysed using thermo-economic methodology keeping the gas turbine output fixed. The approach used for solution of this is thermoeconomic optimization by considering appropriate objective function in a form of decision variables. This objective function combines the expenditure of financial resources (economics) and thermodynamic equations.
2016-09-20
Technical Paper
2016-01-2017
Devesh Kumar, Konrad Juethner, Yves Fournier
Abstract In modern complex engine design, it is a common challenge to keep simulation in step with changes to component geometry, environmental conditions, and mission data - and this applies to both actual designs and those that belong to the hypothetical design space as explored in design of experiments (DOE). In this paper, an effective simulation process and data management (SPDM) approach is presented that hinges on a focus on components, their generalized connections and programmatic templating. This simulation approach improves the fidelity of engine analysis, engineering productivity, quality, scalability across the gas turbine engine organization, and HPC utilization. In addition to this new analysis machinery, gas turbine engine modeling fidelity is elevated by surpassing commonly used one-dimensional (1D) models of rotors.
2016-08-31
Standard
ARP5435A
This paper describes a recommended practice and procedure for the correlation of test cells that are used for the performance testing of APU (auxiliary power unit) engines. 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. The baseline performance is generally determined at the original equipment manufacturer (OEM) designated test facility. 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.
2016-08-26
WIP Standard
AS6416
This SAE AS standard provides definitions for terms and requirements used in SAE AS procurements specifications for bolts, screws, studs and other externally threaded parts.
2016-08-12
Standard
ARP741C
This paper describes a recommended practice and procedure for the correlation of test cells that are used for the performance testing of turbofan and turbojet engines. 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. When baseline testing is performed in an indoor test cell, the baseline performance data are adjusted to open air conditions. 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.
2016-08-01
Standard
ARP4868C
The SAE Aerospace Standard document AS681 is the parent document of this SAE Aerospace Recommended Practice (ARP). AS681 applies to Engine programs written to conform to this document. This ARP specifies a set of functions and their expected behaviors that constitute a function based Application Program Interface (API) for gas turbine engine customer programs. The functions specified in this API are delivered by the Supplier as part of the Engine model. This document defines generic language independent functions and specific appendices for implementations in C and Fortran. The function based API specified in this ARP represents an alternative to the Fortran COMMON block structure, as specified in AS4191, historically used to communicate with an engine program. The customer may request emulation of the AS4191 interface if desired.
2016-07-26
WIP Standard
AS7478D
This procurement specification covers bolts and screws made from a corrosion and heat resistant, age hardenable iron base alloy of the type identified under the Unified Numbering System as UNS S66286.
2016-07-22
WIP Standard
AS100026B
No scope available
2016-07-22
WIP Standard
AS4877F

This procurement specification covers bolts and screws made from a corrosion and heat resistant, age hardenable nickel base alloy of the type identified under the Unified Numbering System as UNS N07718.

Viewing 1 to 30 of 3467

Filter

  • Range:
    to:
  • Year: