Optimalno kombiniranje kondenzacijskega in konvekcijskega sušilnega postopka

diplomski projekt

Primož Tomec (Author), Jože Kropivšek (Reviewer), Željko Gorišek (Mentor)

Abstract

Primerjali smo stroške konvencionalnega in kondenzacijskega sušenja lesa. Stroške konvencionalnega sušenja smo izračunali s CAE računalniškim modelom, stroške kondenzacijskega sušenja pa smo ocenili z analizo konkretno izvedenega postopka. Izračun smo naredili na primeru sušenja bukovega lesa (Fagus Sylvatica L.), debeline 50 mm. Z oceno in primerjavo stroškov smo predvideli lesno vlažnost, pri kateri je prehod med obema postopkoma sušenja optimalen. Ugotovili smo prednosti začetnega sušenja svežega lesa po kondenzacijskem načinu in nato dosušitev do končne vlažnosti po konvencionalnem postopku. Optimalni prehod med obema načinoma sušenja smo dosegli pri lesni vlažnosti 35,1 %. Večjih prihrankov s kombiniranjem sušenja nismo potrdili, vzrok pa je velika razlika med cenama električne in toplotne energije.

Keywords

les;sušenje;tehnično sušenje;kondenzacijsko sušenje;stroški;

Data

Language:	Slovenian
Year of publishing:	2010
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[P. Tomec]
UDC:	630*847.2
COBISS:	1850249
Views:	1010
Downloads:	293
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Optimal combination of kiln and dehumidification drying procedure
Secondary abstract:	The costs of kiln and dehumidification drying of wood were compared. The kiln drying costs were calculated by the CAE computer model, while the dehumidification drying costs assessed by an analysis of the procedure made. Our calculation was done on the basis of the 50 mm thick beech wood drying (Fagus Sylvatica L.). The wood moisture was foreseen by assessing and comparing the costs, according to the optimal drying transfer of both procedures. Advantages of the initial dehumidification drying of fresh wood and then drying to the final moisture with the kiln drying procedure were established. The optimal drying transfer of both procedures was achieved at 35.1 % of wood moisture. We were not able to confirm larger savings by drying combinations because of the huge difference in prices between the electrical and thermal energy.
Secondary keywords:	wood;drying;kiln;dehumidification;costs;
Type (COBISS):	Diploma project paper
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za lesarstvo
Pages:	IX, 48 f.
Keywords (UDC):	applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;agriculture and related sciences and techniques;forestry;farming;wildlife exploitation;kmetijstvo ter sorodne vede in tehnologije;forestry;gozdarstvo;forest products and their utilization;gozdni proizvodi in njihova uporaba;
ID:	21932