# Mathematical modeling of the convection chamber of a utility boiler -- The theory

## Abstract

The requirements of high combustion efficiency and reduced levels of pollutant emissions have motivated the development of computer codes aimed at the simulation of the relevant physical phenomena taking place in utility boilers. A model for the simulation of the flow and heat transfer in the convection chamber of a utility boiler is presented. The tube bundles are simulated using the distributed resistance concept, and available correlations are used to compute the pressure drop. Heat balances along the tubes are performed that account for convective heat transfer on both sides of the tubes, radiative transfer on the outer side, and fouling resistance. The solution algorithm fully couples the flow and heat transfer. The model has been parallelized, and a strategy devised to ensure a good load balance is described.

- Authors:

- Publication Date:

- Research Org.:
- Technical Univ. of Lisbon, Lisboa (PT)

- OSTI Identifier:
- 20000643

- Resource Type:
- Journal Article

- Journal Name:
- Numerical Heat Transfer. Part A, Applications

- Additional Journal Information:
- Journal Volume: 36; Journal Issue: 4; Other Information: PBD: Sep 1999; Journal ID: ISSN 1040-7782

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 20 FOSSIL-FUELED POWER PLANTS; AIR POLLUTION ABATEMENT; MATHEMATICAL MODELS; BOILERS; DESIGN; FLUID FLOW; HEAT TRANSFER; PRESSURE DROP; PARALLEL PROCESSING; FOSSIL-FUEL POWER PLANTS

### Citation Formats

```
Coelho, P.J.
```*Mathematical modeling of the convection chamber of a utility boiler -- The theory*. United States: N. p., 1999.
Web. doi:10.1080/104077899274732.

```
Coelho, P.J.
```*Mathematical modeling of the convection chamber of a utility boiler -- The theory*. United States. doi:10.1080/104077899274732.

```
Coelho, P.J. Wed .
"Mathematical modeling of the convection chamber of a utility boiler -- The theory". United States. doi:10.1080/104077899274732.
```

```
@article{osti_20000643,
```

title = {Mathematical modeling of the convection chamber of a utility boiler -- The theory},

author = {Coelho, P.J.},

abstractNote = {The requirements of high combustion efficiency and reduced levels of pollutant emissions have motivated the development of computer codes aimed at the simulation of the relevant physical phenomena taking place in utility boilers. A model for the simulation of the flow and heat transfer in the convection chamber of a utility boiler is presented. The tube bundles are simulated using the distributed resistance concept, and available correlations are used to compute the pressure drop. Heat balances along the tubes are performed that account for convective heat transfer on both sides of the tubes, radiative transfer on the outer side, and fouling resistance. The solution algorithm fully couples the flow and heat transfer. The model has been parallelized, and a strategy devised to ensure a good load balance is described.},

doi = {10.1080/104077899274732},

journal = {Numerical Heat Transfer. Part A, Applications},

issn = {1040-7782},

number = 4,

volume = 36,

place = {United States},

year = {1999},

month = {9}

}