Using a Water Nozzle for Disbudding Satsuma Mandarins

In this work the effects of multiaxiality on the fatigue evaluation by the ASME Boiler and Pressure Vessel Code procedures have been assessed. The conservatism associated with the Ke factor has been critically appraised for fatigue evaluation using a design example of a feed water nozzle subjected to pressure and thermal fluctuations. A fictitious stress concentrator is applied to account for the ratio of the peak stress to the stress linearized through the thickness of the section under consideration. The effect of the traxiality of the stress distribution has also been assessed using the same design example for fatigue evaluations. Additional analytical and experimental studies have been recommended to study these important critical factors for fatigue assessment.

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Flow at exit of an electrically-heated water nozzle discharging in air

Letters in Heat and Mass Transfer ◽

10.1016/0094-4548(76)90037-0 ◽

1976 ◽

Vol 3 (1) ◽

pp. 13-19

Author(s):

J.W. Hoyt ◽

J.J. Taylor

Keyword(s):

Heated Water ◽

Water Nozzle

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Residual stresses due to cladding, buttering and dissimilar welding of the main feed water nozzle in a power plant reactor

International Journal of Pressure Vessels and Piping ◽

10.1016/j.ijpvp.2017.05.009 ◽

2017 ◽

Vol 152 ◽

pp. 56-64 ◽

Cited By ~ 4

Author(s):

Eiman Masoumi Dehaghi ◽

Hessamoddin Moshayedi ◽

Iradj Sattari-Far ◽

Alireza Fallahi Arezoodar

Keyword(s):

Power Plant ◽

Residual Stresses ◽

Dissimilar Welding ◽

Feed Water ◽

Plant Reactor ◽

Water Nozzle

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Control-volume-based model of the steam-water injector flow

Archives of Thermodynamics ◽

10.2478/v10173-010-0003-z ◽

2010 ◽

Vol 31 (1) ◽

pp. 45-59 ◽

Cited By ~ 3

Author(s):

Roman Kwidziński

Keyword(s):

Cross Sections ◽

Two Phase Flow ◽

Control Volume ◽

Outlet Temperature ◽

Phase Flow ◽

Two Phase ◽

Flow Parameters ◽

Mixing Chamber ◽

Wave Region ◽

Water Nozzle

Control-volume-based model of the steam-water injector flow The paper presents equations of a mathematical model to calculate flow parameters in characteristic cross-sections in the steam-water injector. In the model, component parts of the injector (steam nozzle, water nozzle, mixing chamber, condensation wave region, diffuser) are treated as a series of connected control volumes. At first, equations for the steam nozzle and water nozzle are written and solved for known flow parameters at the injector inlet. Next, the flow properties in two-phase flow comprising mixing chamber and condensation wave region are determined from mass, momentum and energy balance equations. Then, water compression in diffuser is taken into account to evaluate the flow parameters at the injector outlet. Irreversible losses due to friction, condensation and shock wave formation are taken into account for the flow in the steam nozzle. In two-phase flow domain, thermal and mechanical nonequilibrium between vapour and liquid is modelled. For diffuser, frictional pressure loss is considered. Comparison of the model predictions with experimental data shows good agreement, with an error not exceeding 15% for discharge (outlet) pressure and 1 K for outlet temperature.

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P.E.A. Products, Inc., an Affiliate of Precision Endoscopy of America, Inc., Announces the Flexible Endoscope Air/Water Nozzle Replacement Kit

Gastroenterology Nursing ◽

10.1097/00001610-199711000-00010 ◽

1997 ◽

Vol 20 (6) ◽

pp. 223

Author(s):

&NA;

Keyword(s):

Flexible Endoscope ◽

Water Nozzle

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Analysis of the influence of the spraying angle on the distribution of sprinkling intensity by a selected Turbo water nozzle

MATEC Web of Conferences ◽

10.1051/matecconf/201824700008 ◽

2018 ◽

Vol 247 ◽

pp. 00008

Author(s):

Piotr Piątek ◽

Jerzy Gałaj

Keyword(s):

Flow Rate ◽

Maximum Length ◽

Test Method ◽

Water Nozzle ◽

Rb 101 ◽

Spray Jets

The article describes the influence of the spraying angle on the distribution of the sprinkling intensity in the spray generated by the water nozzle Rosenbauer SELECT FLOW RB 101 EN. A partially modified laboratory stand normally used for testing of water nozzles was applied to carry out the experiments. Measurements of sprinkling intensity were made using the refined test method derived from the old Polish standard PN-89/M-51028. This parameter was determined in a weight-volume manner using measuring containers. The paper presents only the results of tests carried out for a flow rate of 400 dm3/min and three spraying angles: 30°, 60° and 90°. The obtained results clearly indicate that the spraying angle is a very important parameter affecting the distribution of sprinkling intensity in spray jets generated by Turbo water nozzles. It has been observed that along with the change of the spraying angle, the values of many parameters adopted for analysis describing the distribution of the sprinkling intensity, such as the spraying surface and its dimensions (shape), the maximum length of the spray jet and the maximum sprinkling intensity, are changed. Finally, important conclusions were formulated both in the theoretical and practical aspects.

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