Izraba odpadne toplote in sončne energije v industrijski stavbi

magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo

Primož Ozmec (Author), Ciril Arkar (Mentor)

Abstract

Podnebne spremembe in istočasno večje zavedanje o pomembnosti zagotavljanja ustreznega delovnega okolja so razlog, da potrebe po hlajenju v industrijskih stavbah naraščajo. V nalogi se osredotočamo na analizo delovanja toplotno in električno gnanih hladilnih sistemov v industrijski stavbi. Izdelali smo numerične modele za preračun delovanja parno-kompresijskega in absorpcijskega hladilnega sistema po standardu SIST EN 16798-13:2018. Potrebno energijo za hlajenje smo določili z modelom dinamičnega toplotnega odziva stavb, ki smo ga validirali z meritvami temperatur v industrijski stavbi. Ugotovili smo, da industrijska stavba na leto potrebuje 427 MWh hladilne energije, za kar bi bilo potrebno vgraditi hladilni sistem z močjo 250 kW. Da bi na letni ravni zadostili potrebam po električni energiji iz obnovljivih virov energije za delovanje parno-kompresijskega hladilnega sistema, bi bilo potrebno namestiti 420 m2 PV modulov, za absorpcijski hladilni sistem pa 183 m2 PV modulov. S tem bi se raba primarne energija za delovanje parno-kompresijskega hladilnega sistema na leto zmanjšala za 43,5 %, v primeru absorpcijskega sistema pa za 76 %, glede na tradicionalni parno-kompresijski sistem. Rabo energije za delovanje hladilnih sistemov bi lahko dodatno zmanjšali z intenzivnejšim naravnim hlajenjem.

Keywords

magistrske naloge;hlajenje stavb;industrijske stavbe;obnovljivi viri energije;odpadna toplota;solarni hladilni sistemi;fotonapetostni moduli;

Data

Language:	Slovenian
Year of publishing:	2024
Typology:	2.09 - Master's Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[P. Ozmec]
UDC:	628.82:620.97(043.2)
COBISS:	220429315
Views:	140
Downloads:	65
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Use of waste heat and solar energy in an industrial building
Secondary abstract:	Climate change and, at the same time, greater awareness of the importance of providing an adequate working environment are the reasons why the need for cooling in industrial buildings is increasing. In the assignment, we focus on analyzing the operation of thermally and electrically driven cooling systems in an industrial building. We created numerical models for recalculating the operation of the vapor-compression and absorption cooling system according to the SIST EN 16798-13:2018 standard. The required energy for cooling was determined using a model of the dynamic thermal response of buildings, which was validated by temperature measurements in an industrial building. We found that an industrial building needs 427 MWh of cooling energy per year, for which it would be necessary to install a cooling system with a power of 250 kW. In order to meet the annual electricity needs from renewable energy sources for the operation of the steam-compression cooling system, it would be necessary to install 420 m2 of PV modules and 183 m2 of PV modules for the absorption cooling system. This would reduce the use of primary energy for the operation of a vapor-compression refrigeration system by 43,5 % per year, and in the case of an absorption system by 76 %, compared to a traditional vapor-compression system. Energy consumption for the operation of cooling systems could be further reduced by more intensive natural cooling.
Secondary keywords:	master thesis;cooling of buildings;industrial buildings;renewable energy sources;waste heat;solar cooling systems;photovoltaic modules;
Type (COBISS):	Master's thesis/paper
Study programme:	0
Thesis comment:	Univ. Ljubljana, Fak. za strojništvo
Pages:	XX, 77 str.
ID:	25386143