- Tytuł:
- Numerical analysis of a heat transfer in economizer dedicated for 250 KW power solid fuel heating boiler
- Autorzy:
-
Judt, W.
Bartoszewicz, J. - Powiązania:
- https://bibliotekanauki.pl/articles/243437.pdf
- Data publikacji:
- 2018
- Wydawca:
- Instytut Techniczny Wojsk Lotniczych
- Tematy:
-
heating boiler
heat transfer
economizer
fluent
solid fuel - Opis:
- Heating boilers, which are combusting solid fuels, are a very popular heating device in Poland. Heating boilers for solid fuels with nominal power equal to 250-300 kW reach a high level of waste heat. Polish companies produced a significant amount of heating boilers with that level of heating power, which are being exploited all the time in smaller companies and housing associations. A temperature of exhaust gases in the outlet of the heating boiler can be equal to 270-300ºC. It means that it is possible to recover some part of the waste heat. It can be realizable in an external heat exchanger. The article contains a methodology of a heat transfer process calculation for this type of heat exchangers. Estimated waste heat, which can be recovered from this installation, is equal to 25 kW. Additional heat exchanger implementation into a plant can increase an efficiency of solid fuel combustion process for a 10 percent. Construction of a heat exchanger was calculated during analytical calculations. After that, analytical calculations were verified in numerical calculations. Numerical analysis of a heat exchanger model was realized in the ANSYS Fluent environment. During calculations, a shell-and-tube heat exchanger construction was analysed. Authors of the article analysed a real temperature distribution for exhaust gases located on a shell side and for a water, which are located on a tube side of the economizer. Numerical calculations allowed to model conditions of economizer steady state work for a whole volume of this construction.
- Źródło:
-
Journal of KONES; 2018, 25, 2; 164-168
1231-4005
2354-0133 - Pojawia się w:
- Journal of KONES
- Dostawca treści:
- Biblioteka Nauki
Artykuł