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thermal hydraulic analysis of a steam boiler with rifled evaporating tubes

Product Thermal Capacity: 1 - 20 t/h

Working Pressure: 0.7 - 2 Mpa

Available Fuel: Nature gas, coke oven gas, biogas, methanol, liquid propane gas, diesel, heavy oil, light oil, crude oil, etc.

Available Industries: Heat supplying, chemical, food, textile, printing and dyeing, cigarettes and tobacco, fodder, pharmacy, building materials, brewery, rubber, hospital etc.

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Introduction of WNS gas / oil fired steam boiler:

WNS series horizontal internal combustion boiler is a boiler shell type 3 passes wetback oil/gas fired boiler. After fuel is being atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, this is 1st pass; the high temperature smoke is collected in reversal chamber and then enters 2nd pass which is grooved tubes bundle area; after heat convection, air temperature gradually falls and goes to front smoke box and turn to 3rd pass, which is smooth tubes bundle area, and then enters chimney passing back smoke box and exhausted to the atmosphere.

Technical advantages:

1. Digitized manufacture
The key part such as material cutting, rolling, drilling are proceeded by advanced CNC machining process to reduce the assemble stress and extend boiler working lifetime.
The front and back smoke chamber plates are cut by CNC plasma cutting machine and looks tidy and beautiful.

2.Easy operation and maintenance
Fully automatically operating, with automatically adjustment and protection of burning, water level, temperature and steam pressure.

3. Longer working life
Smoke tube and tube sheet connection is expanded first to eliminate the gap between them, then adopt automatic argon arc welding to relief the stress and expand boilers working life.
Longitudinal and girth joint adopt advanced automatic submerged-arc welding for good welding quality. All longitudinal and girth joint will have 100% radiographic inspection.
Fin tube us ND steel or stainless-steel material which avoid low temperature corrosion.
Inspection procedure point is set up to guarantee the sequence of expanding and welding, avoid cracking of the tube sheet holes.

4. Less fuel consumption
High quality aluminum silicate fiber is used with fire clay insulation, to control the boiler body temperature below 45℃ to control heat lost.
Sufficient steam storage room and heating area makes boiler to generate high quality steam and high thermal power.
Condenser is added to reuse the waste heat of the exhausted smoke to increase feeding water’s temperature and reduce emission temperature, which can increase the thermal efficiency above 98% and save operating cost.


The thermal-hydraulic system of a nuclear reactor possesses some features common to conventional fossil-fuel power stations. A heat source raises the temperature of a working fluid; the thermal energy thus added is subsequently converted to steam in a boiler; the steam enters a steam turbine under high pressure inducing rotational

Simulation of heat transfer in combustion chamb

File Size: 429KB Grądziel (2012), Modelling thermal and flow phenomena occurring in the evaporator of a boiler with natural circulation Publishing House of Cracow University of Technology in Polish ), Mechanika, 406.

Boiler Hydrostatic testing procedure - Boilersin

Cited by: 6 This procedure defines the requirement and procedure of hydrostatic testing of the boiler pressure parts after completing the assembly of all the boiler high pressure and temperature components. Hydrostatic testing Objective Hydrostatic testing in the boiler is carried out to check the following: Leakages in the boiler pressure parts (Tubes, headers and Pipes).

Thermal–hydraulic analysis of a steam boiler with rifl

Cited by: 30 Thermal–hydraulic analysis of a steam boiler with rifled evaporating tubes Article in Applied Thermal Engineering 27(2):509-519 · February 2007 with 244 Reads How we measure 'reads'

The Role Of The Evaporator In Steam Boil

Cited by: 1 Thermal–hydraulic analysis of a steam boiler with . Thermal–hydraulic analysis of a steam boiler with rifled evaporating tubes Article in Applied Thermal Engineering 27(2):509-519 · February 2007 with 236 Reads How we measure 'reads' GET A QUOTE. Boiler Steam drum internals and function.

Numerical Analysis of Single Phase Flow Pressure Drop in

Numerical analysis by using Fluent® has been carried out to investigate the pressure drop of single phase flow in a 2 meter long of rifled tube and smooth tube which is placed horizontally. The rifled tube or also known as spiral internally ribbed tube that is used in this investigation has an outside diameter 45.0 mm and inside equivalent diameter1 of 33.1 mm while the smooth tube has an

Thermal-Hydraulics of Evaporating Tubes in the Forc

furnace. The influence of the rifled tubes on the increase of the hydraulic resistance in the circulation loop is analyzed. Keywords : steam boiler, rifled tubes, forced circulation, thermal-hydraulic calculation. 1. INTRODUCTION The coal-fired 350 MWe Thermal Power Plant “Kolubara B” is being built by the Electric Power Utility of Serbia.

Thermal–hydraulic analysis of a steam boiler with rifl

Rifled evaporating tubes are applied in the steam boilers with the aim to increase the steam–water mixture turbulization and to prevent the burnout of tubes walls. The rifled evaporating tubes and the working fluid forced circulation are applied in the steam boiler at the Thermal Power Plant “Kolubara B” that is being built by the

Chemical and Process Engineering - Home I

Chemical and Process Engineering. 2016 Simulation of heat transfer in combustion chamber waterwall tubes of supercritical steam boilers. Autorzy. Zivanovic T., Jovovic A., Ivanović V.B., 2007. Thermal–hydraulic analysis of a steam boiler with rifled evaporating tubes. Appl. Therm. Eng. 27, …

Modeling and simulation of a natural circulation wat

Author: Soo Poey Lam, Abdul Wahab Abas, Saparudin Ariffin, Woon Kiow Lee Oct 15, 2019· In the present work, the overall behavior of a steam boiler is investigated using RELAP5/MOD3.2 system code at three different operating loads. Main thermal–hydraulic parameters are analyzed at steady-states corresponding to 60%, 100% and 110% of the boiler nominal load. RELAP5 system code is widely used in the design and safety analysis of nuclear reactor installations as well as …

Thermal-hydraulic analysis of a steam boiler with rifl

Cited by: 30 Thermal-hydraulic analysis of a steam boiler with rifled evaporating tubes

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