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Title:PRIMERJAVA ENERGETSKE UČINKOVITOSTI DVEH TIPOV RASTLINJAKOV OGREVANIH Z LESNO BIOMASO
Authors:ID Klemen, Mitja (Author)
ID Stajnko, Denis (Mentor) More about this mentor... New window
Files:.pdf VS_Klemen_Mitja_2010.pdf (1,35 MB)
MD5: 8EE2D049971806D6A7BF0216A61FED88
PID: 20.500.12556/dkum/0ced977a-d770-408b-bd3d-e5bbaec54ecd
 
Language:Slovenian
Work type:Undergraduate thesis
Organization:FKBV - Faculty of Agriculture and Life Sciences
Abstract:Lesna biomasa postaja pomemben vir energije tudi v intenzivni kmetijski pridelavi v zaprtih prostorih. Namen diplomskega dela je podrobneje proučiti toplotne izgube, ki se pojavljajo v plastenjakih (vrtnarija 1) in steklenjakih (vrtnarija 2) in izračunati potrebno količino goriva ter primerjati rezultate z dejansko porabo lesnih sekancev v obeh vrtnarijah v obdobju dveh mesecev. S pomočjo meritev temperature in izračunov toplotnih izgub smo ugotovili: toplotne izgube na enoto prostornine vrtnarije 1 so bile 1,12 kW/m3, medtem ko so v vrtnariji 2 znašale 1,22 kW/m3. Izračunana poraba goriva na enoto prostornine je znašala 6,78 kg/m3 v vrtnariji 1 in 7,36 kg/m3 v vrtnariji 2, kar je primerljivo z dejansko porabo lesne biomase (7,17 kg/m3 v vrtnariji 1, 7,58 kg/m3 v vrtnariji 2). Če poleg vseh parametrov, upoštevamo še višji temperaturni primanjkljaj v vrtnariji 2, lahko zaključimo, da so energetsko učinkovitejši steklenjaki vrtnarije 2.
Keywords:lesna biomasa, plastenjak, steklenjak, toplotne izgube, porabljena količina goriva
Place of publishing:Maribor
Year of publishing:2010
PID:20.500.12556/DKUM-13459 New window
NUK URN:URN:SI:UM:DK:JTE5MN05
Publication date in DKUM:30.03.2010
Views:3956
Downloads:274
Metadata:XML DC-XML DC-RDF
Categories:FKBV
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Secondary language

Language:English
Title:COMPARISON OF ENERGY EFFICIENCY IN TWO TYPES OF GREENHOUSES HEATED BY BIOMASS
Abstract:Wood biomass is becoming an important source of energy in the intensive agricultural production in greenhouses. The aim of my thesis was to analyse the heat losses occurring in plastic greenhouses (gardening 1) comparing to glasshouses (gardening 2). Furthermore, we calculated the required amount of fuel and compare the results with the actual biomass consumption during two months period. Using temperature measurements and heat loss calculations we can conclude that there was no difference between two types of greenhouse since in gardening 1 heat loss per unit of volume was 1.12 kW/m3 comparing to gardening 2 where heat loss per unit of volume reached 1.22 kW/m3. Calculated fuel consumption per unit of volume was 6.78 kg/m3 in gardening 1 and 7.36 kg/m3 in gardening 2, which is also comparable to actual biomass consumption (7.17 kg/m3 in gardening1 and 7.58 kg/m3 in gardening 2). Considering higher degree days deficit in the gardening 2 we can conclude that glasshouses in gardening 2 are more energy efficient.
Keywords:wood biomass, plastic greenhouse, glasshouse, heat loss, fuel consumption


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