Analiza sistema za kondenzacijo vlažnega zraka v direktnem stiku z vodo

magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo

Urban Stare (Author), Andrej Kitanovski (Mentor)

Abstract

Obstoječi sušilniki perila s toplotno črpalko za kondenzacijo vodne pare iz procesnega zraka uporabljajo cevno-lamelne kondenzatorje. Težava teh kondenzatorjev je, da predstavljajo dodatni toplotni upor med hladivom in zrakom, kar negativno vpliva na energetsko učinkovitost. V tej magistrski nalogi smo zasnovali sistem, s katerim je možno vodno paro kondenzirati neposredno v hladnem bazenu vode, ki ne predstavlja dodatnega toplotnega upora. Poleg tega ima voda čistilno lastnost, saj lahko odstrani delce tkanin in mikro plastike iz procesnega zraka, kar pozitivno vpliva na okolje. V ta namen smo izdelali dve eksperimentalni progi za preverjanje ustreznosti koncepta direktne kondenzacije za integracijo v sušilne stroje. V okviru magistrske naloge smo s pomočjo analiz s suhim in vlažnim procesnim zrakom preverili, ali so tlačni padci, učinkovitost prenosa toplote in količina kondenzirane vode v primeru direktne vodne kondenzacije primerni za pogoje v sušilnih strojih in s tem za nadaljnji razvoj prototipa.

Keywords

magistrske naloge;sušenje;kondenzacija;vlažen zrak;prenos toplote;energetska učinkovitost;

Data

Language:	Slovenian
Year of publishing:	2023
Typology:	2.09 - Master's Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[U. Stare]
UDC:	536.2:648.336(043.2)
COBISS:	167986947
Views:	40
Downloads:	4
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Analysis of the system for humid air condensation in direct contact with water
Secondary abstract:	Existing laundry dryers with heat pumps for the condensation of water vapor from the process air use tubular-finned condensers. The problem with these condensers is that they represent additional thermal resistance between the refrigerant and the air, which negatively impacts energy efficiency. In this master's thesis, we designed a system that can directly condense water vapor in a cold pool of water, which does not represent additional thermal resistance. Furthermore, water has a cleaning property as it can remove fabric particles and microplastics from the process air, which has a positive impact on the environment. For this purpose, we built two experimental setups to test the appropriateness of the direct condensation concept for integration into dryers. As part of the master's thesis, we used analyses with dry and humid process air to check whether the pressure drops, heat transfer efficiency, and the amount of condensed water in the case of direct water condensation are suitable for the conditions in dryers and thus for further prototype development.
Secondary keywords:	master thesis;drying;condensation;humid air;heat transfer;energy efficiency;
Type (COBISS):	Master's thesis/paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. Ljubljana, Fak. za strojništvo
Pages:	XXII, 57 str.
ID:	19880142