The Experts below are selected from a list of 249 Experts worldwide ranked by ideXlab platform
Panagiota Tsarouchi - One of the best experts on this subject based on the ideXlab platform.
-
Building a BiC shaver machine, Perspectives from automation and safety point of view
internal, 2018Co-Authors: Panagiota TsarouchiAbstract:-MVC & C02_LVC were tested for EMC & LVD related directives at the HAI testing facilities. During the required tests, most of the equipment used in BiC machines
Peter Montgomery - One of the best experts on this subject based on the ideXlab platform.
-
A Flight Simulation Vision for Aeropropulsion Altitude Ground Test Facilities
Journal of Engineering for Gas Turbines and Power, 2005Co-Authors: Milt Davis, Peter MontgomeryAbstract:Testing of a gas turbine engine for aircraft propulsion applications may be conducted in the actual aircraft or in a ground-Test environment. Ground Test Facilities simulate flight conditions by providing airflow at pressures and temperatures experienced during flight. Flight-Testing of the full aircraft system provides the best means of obtaining the exact environment that the propulsion system must operate in but must deal with limitations in the amount and type of instrumentation that can be put on-board the aircraft. Due to this limitation, engine performance may not be fully characterized. On the other hand, ground-Test simulation provides the ability to enhance the instrumentation set such that engine performance can be fully quantified. However, the current ground-Test methodology only simulates the flight environment thus placing limitations on obtaining system performance in the real environment. Generally, a combination of ground and flight Tests is necessary to quantify the propulsion system performance over the entire envelop of aircraft operation. To alleviate some of the dependence on flight-Testing to obtain engine performance during maneuvers or transients that are not currently done during ground Testing, a planned enhancement to ground-Test Facilities was investigated and reported in this paper that will allow certain categories of flight maneuvers to be conducted. Ground-Test facility performance is simulated via a numerical model that duplicates the current facility capabilities and with proper modifications represents planned improvements that allow certain aircraft maneuvers. The vision presented in this paper includes using an aircraft simulator that uses pilot inputs to maneuver the aircraft engine. The aircraft simulator then drives the facility to provide the correct engine environmental conditions represented by the flight maneuver.
-
A Flight Simulation Vision for Aeropropulsion Altitude Ground Test Facilities
Volume 1: Turbo Expo 2002, 2002Co-Authors: Milt Davis, Peter MontgomeryAbstract:Testing of a gas turbine engine for aircraft propulsion applications may be conducted in the actual aircraft or in a ground-Test environment. Ground Test Facilities simulate flight conditions by providing airflow at pressures and temperatures experienced during flight. Flight-Testing of the full aircraft system provides the best means of obtaining the exact environment that the propulsion system must operate in but must deal with limitations in the amount and type of instrumentation that can be put on-board the aircraft. Due to this limitation, engine performance may not be fully characterized. On the other hand, ground-Test simulation provides the ability to enhance the instrumentation set such that engine performance can be fully quantified. However, the current ground-Test methodology only simulates the flight environment thus placing limitations on obtaining system performance in the real environment. Generally, a combination of ground and flight Tests is necessary to quantify the propulsion system performance over the entire envelop of aircraft operation. To alleviate some of the dependence on flight-Testing to obtain engine performance during maneuvers or transients that are not currently done during ground Testing, a planned enhancement to ground-Test Facilities was investigated and reported in this paper that will allow certain categories of flight maneuvers to be conducted. Ground-Test facility performance is simulated via a numerical model that duplicates the current facility capabilities and with proper modifications represents planned improvements that allow certain aircraft maneuvers. The vision presented in this paper includes using an aircraft simulator that uses pilot inputs to maneuver the aircraft engine. The aircraft simulator then drives the facility to provide the correct engine environmental conditions represented by the flight maneuver.Copyright © 2002 by ASME
Chengcheng Deng - One of the best experts on this subject based on the ideXlab platform.
-
research on scaling design and applicability evaluation of integral thermal hydraulic Test Facilities a review
Annals of Nuclear Energy, 2019Co-Authors: Chengcheng Deng, Xueyan Zhang, Ye Yang, Jun YangAbstract:Abstract The integral thermal-hydraulic Test facility is an important part of the design certification and safety review of nuclear power plants. During the past few decades, a considerable number of resources and efforts have been devoted to establishing integral Test Facilities and carrying out experimental programs throughout the world. These Test Facilities provide a large database for computer code assessments and a better understanding of thermal-hydraulic phenomena for postulated accident transients. In this paper, some main integral thermal-hydraulic Test Facilities are summarized from the perspective of scaling design and applicability evaluation. Scaling analysis methods are presented for the rational design of scaled-down Test Facilities. The main characteristics of these thermal-hydraulic Test Facilities are illustrated, including their construction history, scaling design, Test matrix, verified codes and related research works. The scaling distortion and experimental applicability of different integral Test Facilities are compared and evaluated. This review is expected to provide the reference guidance for the rational design and application evaluation of integral thermal-hydraulic Test Facilities.
-
Stored energy analysis in the scaled-down Test Facilities
Annals of Nuclear Energy, 2016Co-Authors: Chengcheng Deng, Huajian Chang, Ben-ke QinAbstract:Abstract In the scaled-down Test Facilities that simulate the accident transient process of the prototype nuclear power plant, the stored energy release in the metal structures has an important influence on the accuracy and effectiveness of the experimental data. Three methods of stored energy analysis are developed, and the mechanism behind stored energy distortion in the Test Facilities is revealed. Moreover, the application of stored energy analysis is demonstrated for the ACME Test facility newly built in China. The results show that the similarity requirements of three methods analyzing the stored energy release decrease gradually. The physical mechanism of stored energy release process can be characterized by the dimensionless numbers including Stanton number, Fourier number and Biot number. Under the premise of satisfying the overall similarity of natural circulation, the stored energy release process in the scale-down Test Facilities cannot maintain exact similarity. The results of the application of stored energy analysis illustrate that both the transient release process and integral total stored energy of the reactor pressure vessel wall of CAP1400 power plant can be well reproduced in the ACME Test facility.
Changzhi Xiao - One of the best experts on this subject based on the ideXlab platform.
-
The Research and Comparison of Thermal-Hydraulic Test Facilities for Pressurized Water Reactors (PWRs)
Volume 6: Thermal-Hydraulics, 2017Co-Authors: Changzhi XiaoAbstract:Recently, nuclear power safety draws more attention after Fukushima nuclear accident, for which it is essential to construct a large number of Test Facilities simulating possible issues occurred in the reactor. The thermal-hydraulic Test facility is extensively used to simulate thermal-hydraulic response during a loss of coolant accident (LOCA) or an operational transient which can minimize the nuclear safety accidents. This paper focus on the research of thermal-hydraulic Test Facilities of PWRs in different countries. All of Facilities were designed by scaling analysis method. Meanwhile, a wide range of data comprising of power data, pressure data, volume data, configuration and a series of nuclear safety Test data is compared in over ten Test Facilities. Based on above comparable data and relevant research, the main conclusions are as follows: Scaling analysis lays a solid foundation for the design and construction of scale-down nuclear reactor thermal-hydraulic Test Facilities. This would provide the reference for choosing scaling concepts in the reactor integral Test facility.
Jun Yang - One of the best experts on this subject based on the ideXlab platform.
-
research on scaling design and applicability evaluation of integral thermal hydraulic Test Facilities a review
Annals of Nuclear Energy, 2019Co-Authors: Chengcheng Deng, Xueyan Zhang, Ye Yang, Jun YangAbstract:Abstract The integral thermal-hydraulic Test facility is an important part of the design certification and safety review of nuclear power plants. During the past few decades, a considerable number of resources and efforts have been devoted to establishing integral Test Facilities and carrying out experimental programs throughout the world. These Test Facilities provide a large database for computer code assessments and a better understanding of thermal-hydraulic phenomena for postulated accident transients. In this paper, some main integral thermal-hydraulic Test Facilities are summarized from the perspective of scaling design and applicability evaluation. Scaling analysis methods are presented for the rational design of scaled-down Test Facilities. The main characteristics of these thermal-hydraulic Test Facilities are illustrated, including their construction history, scaling design, Test matrix, verified codes and related research works. The scaling distortion and experimental applicability of different integral Test Facilities are compared and evaluated. This review is expected to provide the reference guidance for the rational design and application evaluation of integral thermal-hydraulic Test Facilities.
