Results 91 to 100 of about 301,138 (269)

Parametric analysis of diffuser requirements for high expansion ratio space engine [PDF]

open access: yes
A supersonic diffuser ejector design computer program was developed. Using empirically modified one dimensional flow methods the diffuser ejector geometry is specified by the code.
Anderson, P. G., Wojciechowski, C. J.
core   +1 more source

Comparison of traditional and CRMC ejector performance used in a steam ejector refrigeration

open access: yesEnergy Procedia, 2017
Abstract In this paper, performance of a steam ejector designed based on the constant rate of momentum change (CRMC) and traditional ejector were tested in an attempt to compare its performance. Three different ejectors were designed and constructed; traditional ejector with throat diameter of 19 mm, traditional ejector with throat diameter of 13.4 ...
Borirak Kitrattana   +3 more
openaire   +1 more source

ANALYSIS OF EFFICIENCY WASTE HEAT RECOVERY THERMORESSURE-EJECTOR REFRIGERATING MACHINE

open access: yesАвіаційно-космічна техніка та технологія, 2019
One of the ways to increase the energy efficiency of ejector refrigerating machines is to use of thermopressor technologies, which are based on to use of the process of thermogasdynamic compression.
Дмитро Вікторович Коновалов
doaj   +1 more source

Ejector applications in refrigeration and heating: An overview of modelling, operation and recent developments [PDF]

open access: yes, 2013
Part of: Thermally driven heat pumps for heating and cooling. – Ed.: Annett Kühn – Berlin: Universitätsverlag der TU Berlin, 2013 ISBN 978-3-7983-2686-6 (print) ISBN 978-3-7983-2596-8 (online) urn:nbn:de:kobv:83-opus4-39458 [http://nbn ...
Aidoun, Zine   +3 more
core   +1 more source

CFD Simulation of Ejector in Steam Jet Refrigeration

open access: yesJournal of Applied Mechanical Engineering, 2017
In this study CFD technique was employed to investigate the effect of divergent angle of primary nozzle, NXP (NXP = Distance between the nozzle exit to mixing chamber inlet) and throat of the ejector on the performance of ejector using the steam jet refrigeration cycle.
Surya SD   +3 more
openaire   +1 more source

An aerospike nozzle ejector in MED-TVC systems for performance improvement and operating condition extension

open access: yesResults in Engineering
Aerospike nozzles, characterized by its distinct structure diverging from the conventional bell nozzle, are commonly employed in aerospace propulsion systems. This structural configuration confers performance advantages under specific operating condition.
Changchao Liu   +5 more
doaj   +1 more source

Upgrading of NASA-Ames high-energy hypersonic facilities: A Study [PDF]

open access: yes
This study reviews facility capabilities of NASA, Ames Research Center to simulate hypersonic flight with particular emphasis on arc heaters. Scaling laws are developed and compared with ARCFLO II calculations and with existing data.
Carlson, William C. A.   +1 more
core   +1 more source

Description and Operation of the A3 Subscale Facility [PDF]

open access: yes, 2010
The purpose of this paper is to give an overview of the general design and operation of the A3 Subscale test facility. The goal is to provide the reader with a general understanding of what the major facility systems are, where they are located, and how ...
Grover, J. B.   +2 more
core   +1 more source

Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen®

open access: yesEnergies, 2019
Thermal energy of flue gases (FG) dissipating from industrial facilities into the environment, constitute around 20% of the total dissipated thermal energy.
Nataliia Fedorova   +5 more
doaj   +1 more source

A model for prediction of STOVL ejector dynamics [PDF]

open access: yes
A semi-empirical control-volume approach to ejector modeling for transient performance prediction is presented. This new approach is motivated by the need for a predictive real-time ejector sub-system simulation for Short Take-Off Verticle Landing (STOVL)
Drummond, Colin K.
core   +1 more source

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