Projekt podnog i zidnog grijanja školske zgrade

undergraduate thesis

• Title (english): Design of wall and floor heating for a school building
• Author: David Šanjek
• Mentor: Darko Smoljan (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2021-09-30, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Process Energy Engineering

Abstract

Tema završnog rada je projektiranje podnog i zidnog grijanja školske zgrade površine 1400 m2 koja se nalazi na području grada Rijeke. Školska zgrada se sastoji od dvije etaže, prizemlja i kata. U svim prostorijama škole za potrebe grijanja predviđena su ogrjevna tijela podni paneli, podno grijanje s niskotemperaturnim režimom tople vode 38/32 °C. Kao izvor topline koristi se dizalica topline zrak – voda. Važno je napomenuti da se ventilacijski gubici djelomično pokrivaju predgrijavanjem vanjskog zraka prije ubacivanja u prostoriju. Proračun sustava mehaničke ventilacije nije proveden te nije dio ovog završnog rada. Također, proračun zidnog grijanja nije proveden jer nije bilo potrebe za njegovim ugrađivanjem. Prvo je pomoću računalnog programa IntegraCAD izračunato projektno toplinsko opterećenje svih prostorija i zgrade u cjelini za zimsko razdoblje prema normi HRN EN 12831. Zatim je radi usporedbe rezultata proveden „ručni“ proračun projektnog toplinskog opterećenja za zimsko razdoblje jedne prostorije. Sa podacima projektnog toplinskog opterećenja svake prostorije za zimsko razdoblje je proveden proračun podnog grijanja. Nakon toga su odabrani kapacitet izvora topline koji je u ovom slučaju dizalica topline zrak – voda te spremnik vode u krugu podnog grijanja. Nadalje je odabrana pumpa te ekspanzijska posuda prema provedenim proračunima. Na kraju je prema odgovarajućim proračunima za potrebe potrošne tople vode odabrana zasebna dizalica topline zrak – voda te akumulacijski spremnik potrošne tople vode.

Proračun projektnog toplinskog opterećenja za zimsko razdoblje te proračun podnog grijanja napravljeni su u računalnom programu IntegraCAD. Proračun cijevne mreže napravljen je „ručno“ u programu Excel. Crtež kojim se definira raspored i montaža opreme djelomično je napravljen u računalnom programu IntegraCAD, a djelomično u AutoCAD-u. Shema spajanja i regulacije napravljena je u AutoCAD-u.

Abstract (english)

The topic of the final work is the design of an underfloor and wall heating system for a school building of 1400 m2 located in the city of Rijeka. The school building consists of two floors. In all rooms of the school building for heating purposes the floor heating panels are provided, underfloor heating with low temperature hot water regime 38/32 °C. Air – water heat pump is used as a heat source. It is important to note that ventilation losses are partially covered by preheating the outside air before entering rooms. The calculation of the mechanical ventilation system was not completed, and it is not part of this final work. Also, the calculation of the wall heating was not completed because there was no need to install it. First, the heat load for the winter period of all rooms and the school building was calculated according to a standard HRN EN 12831 by the computer software IntegraCAD. Then, in order to compare the results, a manual calculation of the design heat load for the winter period of one room was preformed. With the data of the heat load for the winter period of each room was calculated the underfloor heating. After that, the capacity of the heat source, which in this case is air – water heat pump and water tank in the underfloor heating circuit were selected. Furthermore, the pump and the expansion vessel were selected according to the performed calculations. In the end, for the needs of domestic hot water according to the appropriate calculations, separate air – water heat pump and storage tank for domestic hot water were selected.

The calculation of the heat load for the winter period and the calculation of the underfloor heating were made in the computer software IntegraCAD. The calculation of the pipe grid was made manually in Excel. The drawing defining the layout and assembly of the equipment was partially made in the computer software IntegraCAD, and partially in AutoCAD. The connection and the regulation scheme were made in AutoCAD.

• Keywords: IntegraCAD; AutoCAD; Excel; projektno toplinsko opterećenje za zimsko razdoblje; dizalica topline zrak – voda; potrošna topla voda; pumpa; ekspanzijska posuda
• Keywords (english): IntegraCAD; AutoCAD; Excel; heat load for the winter period; air – water heat pump; domestic hot water; pump; expansion vessel
• Language: croatian
• URN:NBN: urn:nbn:hr:235:769878
• Study programme: Title: Mechanical Engineering; specializations in: Design, Process and Energy Engineering, Production Engineering, Engineering Modelling and Computer Simulation, Marine Engineering, Industrial Engineering and Management, Materials Engineering; Course: Process and Energy Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-09-22 11:38:49