Combustion Air Humidifier for a Biomass Boiler with Flue Gas Condensation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00384129" target="_blank" >RIV/68407700:21220/25:00384129 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/chemengineering9040068" target="_blank" >https://doi.org/10.3390/chemengineering9040068</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/chemengineering9040068" target="_blank" >10.3390/chemengineering9040068</a>

Result language

angličtina

Original language name

Combustion Air Humidifier for a Biomass Boiler with Flue Gas Condensation

Original language description

This paper deals with combustion air humidification for application with a biomass boiler and a spray flue gas condenser. The use of a combustion air humidifier increases the dew point temperature of the flue gas, thereby increasing the potential for heat recovery in the flue gas condenser and increasing the amount of heat supplied to the thermal system. The air humidification process in a counter current spray humidifier was experimentally analysed under conditions corresponding to the use before a biomass boiler with a flue gas condenser. For air heating and humidification, temperature factor values of up to 0.90 can be obtained; this value is mainly influenced by the ratio of the spray water and humidified air flow rates. The volumetric heat transfer coefficient is significantly affected by the humidified air velocity, although this velocity is negligible compared to the counter current spray water velocity. The volumetric heat transfer coefficient reaches higher values at higher spray water temperatures and therefore higher air heating. The whole process is also affected by the saturation of the incoming air, where the dew point temperature of the air drawn in from the surroundings is lower than its temperature. These results can be used as basic information for the design of combustion air humidifiers, for the selection of their operating parameters, and for a basic balancing of the energy contribution of the combustion air humidifier before a more detailed design of the whole system.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20303 - Thermodynamics

Project

<a href="/en/project/TK04030297" target="_blank" >TK04030297: Utilization of condensing heat from flue gases of biomass boilers</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

ChemEngineering

ISSN

2305-7084

e-ISSN

2305-7084

Volume of the periodical

9

Issue of the periodical within the volume

4

Country of publishing house

CH - SWITZERLAND

Number of pages

17

Pages from-to

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UT code for WoS article

001557310000001

EID of the result in the Scopus database

2-s2.0-105014388634