A new approach to field modelling

Language:
Language Global English Deutsch Espanol Francais Italiano Danmark Ceske Chinese no-Pyccku


RSS Twitter Facebook Linkedin YouTube

>> >> >>

Steel tank

The steel tank contains hot water. Determine the wall outside temperature and heat losses.

Problem type:

Plane-parallel problem of heat transfer.

steel tank with water thermal model

Given:

Hot water temperature t°=95°C;
Water-to-wall convection coefficient α = 2850 W/m2°C;
Cooling air temperature 15°C;
Wall-to-air convection coefficient α = 10 W/m2°C;
Wall thermal conductivity λ = 50 W/m·K.

Task:

Calculate the average heat flux density passing through the tank wall and the wall air-side temperature.

Solution:

To solve the problem it is enough to simulate a small piece of the tank wall. Heat losses (heat flux density) are calculated as a heat flux value divided by the wall surface area value.

steel tank wall heat flux and temperature

Result:

 

QuickField

Theory*

Error

Wall outside temperature

94.53°C (367.68 K)

94.52°C

0.011%

Flux density, W/m2

795.3

795.2

0.013%

*Rajput R.K.(2010). Engineering Thermodynamics, Third Edition. Sudbury, MA:Jones and Bartlett Publishers. Page 805.

View movie Download video.

Watch online on YouTube

Download PDF icon View simulation report in PDF.

Download icon Download simulation files (files may be viewed using any QuickField Edition).

There are no restrictions applied to the QuickField Student Edition postprocessors.
You can view field maps, make plots, calculate integrals and print pictures in the same way that the Professional Edition users do.