Naslov
Air dehumidification in shell and tube heat exchanger

Autori
Zadravec, Danijel ; Ferdelji, Nenad

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Zbornik sažetaka Interklima 2017 / Dović, Damir ; Soldo, Vladimir ; Mudrinić, Saša - Zagreb : Fakultet strojarstva i brodogradnje Sveučilišta u Zagrebu, 2017, 6-6

Skup
24. Međunarodni simpozij o grijanju, hlađenju i klimatizaciji

Mjesto i datum
Zagreb, Hrvatska, 06.04.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
air dehumidification ; heat and mass transfer ; condensation

Sažetak
This paper describes a thermodynamic analysis of humid air dehumidification with cooling water in shell and tube heat exchanger of given geometry. The analysis is based on a simultaneous convective heat transfer and mass transfer due to the moisture condensing from the air. Mathematical calculation model is applied to the discretized control volumes which form a simplified geometrical model of the heat exchanger. By solving the model, thermodynamic states of both the fluids at the exit of every control volume are obtained, which, beside the overall heat transfer rate, determines the humid air process path in the Mollier h, x- diagram. Results for parallel and counter flow heat exchanger are compared and the effect of inlet air temperature and humidity on the overall heat transfer rate and mass flow rate of condensed moisture is examined. Finally, deviation of results due to the low mass flux assumption are quantified which provides guidelines for broader application of given model.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA