Convective heat transfer coefficients of fuel oil?

Click For Summary
SUMMARY

The discussion focuses on determining the convective heat transfer coefficients for fuel oil (kerosene) and crude oil at elevated temperatures, specifically for use in a thermal resistance network related to heat loss in insulated tanks. The user has only found coefficients at room temperature (20 degrees C) and seeks resources or methods to estimate these coefficients without knowing the inner wall temperature. The conversation highlights the importance of both fluid and wall temperatures in calculating free convection parameters, suggesting that assumptions may be necessary in the absence of specific data.

PREREQUISITES
  • Understanding of convective heat transfer principles
  • Familiarity with Rayleigh and Nusselt numbers
  • Knowledge of thermal resistance networks
  • Basic thermodynamics related to fluid temperature and wall temperature
NEXT STEPS
  • Research methods for estimating convective heat transfer coefficients for non-Newtonian fluids
  • Explore resources on calculating Rayleigh and Nusselt numbers for elevated temperatures
  • Investigate thermal resistance network modeling techniques
  • Learn about assumptions in thermal analysis when specific temperature data is unavailable
USEFUL FOR

Engineers and researchers involved in thermal management, particularly those working with fuel oil or crude oil storage systems, as well as professionals focused on heat transfer analysis and thermal resistance modeling.

Downtown84
Messages
1
Reaction score
0
I'm setting up a thermal resistance network to determine the heat loss through the insulated wall of a heated fuel/crude oil tank but i can't seem to find values for the convective heat transfer coefficient of the fuel oil (kerosene) or the crude oil at elevated temperatures. I have only found values at room temperature (20 degrees C). I would try to determine the values using Rayleigh and Nusselt numbers, but the problem does not give the temperature of the inner wall, only the fluid temperature. Does anyone know of a resource where i can find these convective heat transfer coefficients, or of a way to calculate/estimate them without knowing the inner surface temperature? Thanks in advance.
 
Perhaps it helps to post the complete problem statement ?
 
To calculate free convection parameters you'll need the fluid temperature and the wall temperature. If you haven't been provided the wall temperature, can you assume it is the same as environmental temp?
 

Similar threads

Heat Transfer Problem for Titanium Capsule
  • · Replies 5 ·
Replies
5
Views
2K
Improving heat transfer in domestic hot water tank?
  • · Replies 15 ·
Replies
15
Views
4K
Heat sink - calculating temperature at the base
  • · Replies 34 ·
2
Replies
34
Views
6K
Cooling nozzle - convection power
  • · Replies 5 ·
Replies
5
Views
2K
Heat Transfer Through a Two Material System due to a Light Source
  • · Replies 10 ·
Replies
10
Views
3K
Two-phase flow heat transfer coefficient
  • · Replies 34 ·
2
Replies
34
Views
5K
Overall heat transfer coefficient for free convection exchanger
  • · Replies 2 ·
Replies
2
Views
3K
Massflow of steam to be supplied to a drying cylinder
  • · Replies 7 ·
Replies
7
Views
3K
Typical value free air convection heat transfer coefficient
  • · Replies 5 ·
Replies
5
Views
82K
Laminar flow in a tube, heat transfer coefficient-sanity check
  • · Replies 4 ·
Replies
4
Views
2K