1 edition of Hot flow testing of multiple nozzle exhaust eductor systems found in the catalog.
Hot flow testing of multiple nozzle exhaust eductor systems
Daniel Roy Welch
An illustration of an open book. Books. An illustration of two cells of a film strip. Video. An illustration of an audio speaker. Audio An illustration of a " floppy disk. Full text of "Operational performance characteristics of a multiply-shrouded, angle-diffuser stack gas eductor in turbulent cross-flow.". S. Senoo, A.J. White, in Advances in Steam Turbines for Modern Power Plants, Nozzle flows. The use of converging– diverging nozzles as a means of studying condensation in steam dates back to the early experiments of Stodola .In a typical experiment, steam is supplied to the nozzle with a saturated or superheated stagnation state and the downstream pressure is set.
Multi-Nozzle Water Jet Exhauster Principle of Operation. Fig. and Fig. Multi-Nozzle Water Jet Exhausters are manufactured to provide high air or vapor handling capacities at low operating pressures. Multi-Nozzle Water Jet Exhausters are used to create moderately high vacuums and can only be installed discharging vertically downward. Regarding the engine exhaust, data coming from a test rig configuration which was tested at the AgustaWestland Ltd wind tunnel facility in was used for validation. Objectives of the tests were to get cold flow data on current AW exhaust/eductor system .
TURBINE ENGINE EXHAUST NOZZLE PERFORMANCE WITH NONUNIFORM INLET FLOW m ENGINE TEST FACILITY ARNOLD ENGINEERING DEVELOPMENT CENTER AIR FORCE SYSTEMS COMMAND ARNOLD AIR FORCE STATION, TENNESSEE August Final Report for Period July - June Approved fOr public release; distribution unlimited. Filters represent an obstruction to flow within the exhaust system, this trait is unavoidable for physical filtration (cure) based routes to particulate emissions compliance. EBP is a hindrance to flow, most especially at high power-output, where flow hindrance can have a direct impact on the peak-achievable power target for a power-plant.
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NAVALPOSTGRADUATESCHOOL Monterey,California THESIS HOTFLOWTESTINGOFMULTIPLE NOZZLEEXHAUSTEDUCTORSYSTEMS by DanielRoyWelch September ThesisAdvisor: Approvedforpublicrelease;distributionunlimited, T Hot flow testing of multiple nozzle exhaust eductor.
Enter the password to open this PDF file: Cancel OK. File name:. Hot flow model tests of multiple nozzle exhaust eductor systems were conducted to evaluate effects of exhaust temperature on eductor performance.
A one-dimensional analysis of a simple eductor system based on conservation of momentum for an incompressible gas was used in determining the non-dimensional parameters governing the flow : Daniel Roy Welch.
Hot flow testing of multiple nozzle exhaust eductor systems. distribution is unlimitedHot flow model tests of multiple nozzle gas turbine exhaust eductor systems were conducted to evaluate the temperature effects of several eductor design modifications.
A one-dimensional analysis of a simple eductor system based on conservation of momentum Author: James Allan Hill. NOMENCLATURE EnglishLetterSymbols A-Area, in. 2 c-Sonicvelocity,ft/sec C-Coefficientofdischarge D-Diameter,in. F-Thermalexpansionfactor a r F,-Wallskin-frictionforce,lbf g-ProportionalityfactorinNewton'sSecond c Law, g=lbm-ft/lbf-sec2 h-Enthalpy,Btu/lbm k-Ratioofspecificheats L-Length,in.
P-Pressure,in.H 2 P-Atmosphericpressure, a P. NASA Images Solar System Collection Ames Research Center Brooklyn Museum Full text of " Model tests of multiple nozzle exhaust gas educator systems for gas turbine powered ships.
ejector system because high-velocity moisture droplets are erosive. These droplets are rapidly accelerated as steam expands across a motive nozzle. Erosion of nozzle internals caused by wet motive-steam is noticeable when inspecting ejector nozzles or diffuser internals. There is an etched striated pattern on the diverging section of a.
LVHV exhaust nozzles can generate very high noise levels. 53, 56 Nozzle noise can present significant hazards to hearing. Options are limited, but actions can be taken to help reduce nozzle noise. Figure a compares nozzle noise profiles, dBA versus V 0 (m s −1, fpm) for plain circular, square, and rectangular (WLR = ) curves are remarkably similar, each showing dramatic.
Ejector systems tie together multiple wells with a single pumping station and are typically used where the groundwater must be lowered more than 5 m, often in soil with low permeability.
For these situations, they can be used at close spacing. The ejector (sometimes called eductor) system lifts the well water with a nozzle and venturi fed by water under high pressure, and so is not limited to.
Cold flow tests of a four nozzle eductor system were conducted to evaluate the performance of a new mixing stack configuration. The new design employed the. This flow will serve as a "fast loop" that every so often an analyzer will pull a "slip stream" from to test.
Any suggestions as to how to formulate a relation of motive stream to outlet pressure. The eductor used for gases is basically a converging/diverging nozzle from what I understand. That is, the Flow hydrant should be down stream from the Test hydrant. When flowing multiple hydrants, the Test hydrant should be centrally located relative to the Flow hydrant.
Figure 1 HYDRANT FLUSHING Flushing a hydrant removes any accumulated sediment in the barrel and the valve. It is recommended that each hydrant in the system be flushed. The Water Jet Eductor is liquid jet liquid pump.
The Water Jet Exhauster is a liquid jet gas pump. It may utilize a spray nozzle or multiple nozzles to improve contact with the suction gas. The Fume Scrubber is a Water Jet air pump, designed for low drafts and large capacity. The Syphon is a Stream Jet liquid pump which requires condensation of the.
Standards for Steam Jet Vacuum Systems (4th ed.) details the pro-cedure for calculating pressure drop in vacuum systems. In general, the diameter of the piping between the process and the ejector system must be at least as large as the suction connection in the first-stage ejector.
In a multiple-element ejector system. characteristics. Total flow is nozzle flow plus the draw rate; slow rinse is the nozzle flow only. Use a check valve in the chemical feed line to ensure that water is not blown back into the chemical tank in the event of a sudden increase in back pressure.
This is critical when setting up DI systems. texts All Books All Texts latest This Just In Smithsonian Libraries FEDLINK (US) Genealogy Lincoln Collection. National Emergency Library. Top American Libraries Canadian Libraries Universal Library Community Texts Project Gutenberg Biodiversity Heritage Library Children's Library.
Open Library. That means an automatic nozzle rated at 95 to gpm at psi will pass its test if the pressures noted at each flow are between 85 and psi. Essential Testing. Annual hydrostatic and flow testing of critical water flow equipment, as outlined in NFPAis essential for the safety of emergency responders.
Review of pneumatic conveying systems 29 Introduction 29 System types 29 System requirements 48 Material property inﬂuences 50 References 53 3. Pipeline feeding devices – Part I: Low pressure and vacuum 54 Introduction 54 Rotary valves 58 Screw feeders 68 Venturi feeders 69 Gate lock valves 71 Bench Testing Testing of a pressure relief device on a test stand using an external pressure source with or without an auxiliary lift device to determine some or all of its operating characteristics.
Flow Capacity Testing Testing of a pressure relief device to determine its operating characteristics including measured relieving capacity. Performance of a multiple nozzle exhaust gas eductor system for gas turbine powered ships.
by Shaw, Richard Stewart. Publication date Topics Mechanical engineering some content may be lost due to the binding of the book. Addeddate Call number o Camera Canon EOS 5D Mark II line Mechanical.On a molecular level, you might imagine that some of the air molecules will bounce against the water flow from the nozzle and thus be accelerated towards the 'output' and quickly enough exit the eductor entirely.
That creates a low pressure inside the eductor which will cause air molecules to flow into the eductor via the suction inlet.Dipak K. Sarkar, in Thermal Power Plant, Increase condenser vacuum. It is known from Chapter 9, Power Plant Systems, that evacuating air from the condenser may be realized either with the help of a steam jet air ejector or by utilizing a vacuum se the condenser vacuum as .