STEADY-STATE FLOW DISTRIBUTION ANALYSIS OF NATURAL CIRCULATION IN WATER TUBE BOILER

2020 ◽  
Vol 12 (3) ◽  
pp. 275-288
Author(s):  
Atul M. Elgandelwar ◽  
R. S. Jha ◽  
Mandar M. Lele
Keyword(s):  
Steady State ◽  
Natural Circulation ◽  
Flow Distribution ◽  
Distribution Analysis ◽  
Steady State Flow ◽  
State Flow ◽  
Water Tube

Steady state flow analysis of two-phase natural circulation in multiple parallel channel loop

2016 ◽  
Vol 305 ◽  
pp. 706-716 ◽  
Author(s):  
V.H. Bhusare ◽  
R.K. Bagul ◽  
J.B. Joshi ◽  
A.K. Nayak ◽  
Umasankari Kannan ◽  
...  
Keyword(s):  
Steady State ◽  
Natural Circulation ◽  
Flow Analysis ◽  
Parallel Channel ◽  
Steady State Flow ◽  
Two Phase ◽  
State Flow

scholarly journals Generalization of Methods for Calculating Steady-State Flow Distribution in Pipeline Networks for Non-Conventional Flow Models

Mathematics ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 796
Author(s):  
Nikolay Novitsky ◽  
Egor Mikhailovsky
Keyword(s):  
Steady State ◽  
Flow Rate ◽  
Flow Distribution ◽  
Steady State Flow ◽  
Specific Element ◽  
Flow Models ◽  
State Flow ◽  
Pipeline Networks ◽  
Uniqueness Of A Solution ◽  
Nodal Pressure

This paper proposes generalized models and methods for calculating flow distribution in hydraulic circuits with lumped parameters. The main models of the isothermal steady-state flow of medium are classified by an element of the hydraulic circuit. These models include conventional, implicitly specified by flow rate, and pressure-dependent ones. The conditions for their applicability, which ensure the existence and uniqueness of a solution to the flow distribution problem, are considered. We propose generalized nodal pressure and loop flow rate methods, which can be applied regardless of the forms of specific element models. Final algorithms, which require lower computational costs versus the known approaches designed for non-conventional flow models, are substantiated. Proposed models, methods, algorithms, and their capabilities, are analytically and numerically illustrated by an example of a fragment of gas transmission network with compressor stations.

A study on the steady-state flow behavior of the flashing-driven open natural circulation system

2021 ◽  
Vol 182 ◽  
pp. 115903
Author(s):  
Xiaofan Hou ◽  
Jinrong Qiu ◽  
Zhongning Sun ◽  
Shiwei Yao ◽  
Chuan He ◽  
...  
Keyword(s):  
Steady State ◽  
Natural Circulation ◽  
Flow Behavior ◽  
Circulation System ◽  
Steady State Flow ◽  
State Flow

Steady state flow and static instability of supercritical natural circulation loops

2012 ◽  
Vol 245 ◽  
pp. 99-112 ◽  
Author(s):  
B.T. Swapnalee ◽  
P.K. Vijayan ◽  
M. Sharma ◽  
D.S. Pilkhwal
Keyword(s):  
Steady State ◽  
Natural Circulation ◽  
Steady State Flow ◽  
State Flow ◽  
Static Instability

Calibration 7" – Cutthroat Flume as New Size for Discharge Measurement at Free Flow Condition

2020 ◽  
Vol 38 (12A) ◽  
pp. 1783-1789
Author(s):  
Jaafar S. Matooq ◽  
Muna J. Ibraheem
Keyword(s):  
Steady State ◽  
Flow Condition ◽  
Laboratory Experiments ◽  
Free Flow ◽  
Experimental Program ◽  
Steady State Flow ◽  
Empirical Formulas ◽  
State Flow ◽  
Operation Conditions ◽  
Throat Width

 This paper aims to conduct a series of laboratory experiments in case of steady-state flow for the new size 7 ̋ throat width (not presented before) of the cutthroat flume. For this size, five different lengths were adopted 0.535, 0.46, 0.40, 0.325 and 0.27m these lengths were adopted based on the limitations of the available flume. The experimental program has been followed to investigate the hydraulic characteristic and introducing the calibrated formula for free flow application within the discharge ranged between 0.006 and 0.025 m3/s. The calibration result showed that, under suitable operation conditions, the suggested empirical formulas can accurately predict the values of discharge within an error ± 3%.

A Graphical Method for Storage Coefficient Determination from Quasi-Steady State Flow Data

1996 ◽  
Vol 27 (4) ◽  
pp. 247-254 ◽  
Author(s):  
Zekâi Şen
Keyword(s):  
Steady State ◽  
Graphical Method ◽  
Pumping Test ◽  
Quasi Steady State ◽  
Flow Data ◽  
Steady State Flow ◽  
Storage Coefficient ◽  
State Flow ◽  
Aquifer Test

A simple, approximate but practical graphical method is proposed for estimating the storage coefficient independently from the transmissivity value, provided that quasi-steady state flow data are available from a pumping test. In the past, quasi-steady state flow distance-drawdown data have been used for the determination of transmissivity only. The method is applicable to confined and leaky aquifers. The application of the method has been performed for various aquifer test data available in the groundwater literature. The results are within the practical limits of approximation compared with the unsteady state flow solutions.

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