Izbira najprimernejšega hladiva enostopenjske ali dvostopenjske visokotemperaturne toplotne črpalke

diplomsko delo univerzitetnega študijskega programa

Simon Ceglar (Author), Darko Goričanec (Mentor), Peter Trop (Co-mentor)

Abstract

Energetske in ekološke krize ter omejenost zalog fosilnih goriv so pripeljale do svetovnega trenda iskanja obnovljivih virov energije, pri čemer je geotermalna energija ena najpomembnejših. Hkrati pa nas k temu zavezujejo tudi evropske direktive, ki smo jih sprejeli v obliki novega Energetskega zakona (EZ-1), z namenom zagotavljanja zanesljive oskrbe z energijo in energetskimi storitvami ob upoštevanju trajnostnega razvoja. Namen diplomske naloge je preučiti možnost uporabe visokotemperaturnih toplotnih črpalk, ki bi se uporabljale za visokotemperaturno ogrevanje večjega števila uporabnikov. Visokotemperaturne toplotne črpalke tip voda-voda, bi kot nizkotemperaturni vir izkoriščale geotermalno energijo, lahko pa tudi kak drug neizkoriščen toplotni vir, z zadostno kapaciteto in konstantnim tokom. Za naš primer smo uporabili kogeneracijo visokotemperaturne toplotne črpalke s plinskim motorjem, ki ustvarja dodatno toploto in električno energijo, s katero pokrivamo svoje potrebe, višek električne energije pa prodajamo distribucijskemu omrežju v cilju znižanja proizvodnih stroškov. Cilj diplomske naloge je z teoretičnimi izračuni priti do čim boljšega grelnega števila ob uporabi različnih hladil, visokotemperaturnih toplotnih črpalk, spreminjanju vhodnih parametrov glede na vzporedno ali zaporedno vezavo visokotemperaturnih toplotnih črpalk. Opazili smo, da je zaporedna vezava toplotnih črpalk, ob postopnem vključevanju posameznih črpalk najprimernejša, saj tako z izbiro ustreznih visokotemperaturnih toplotnih črpalk ohranjamo najvišje možno grelno število pri vsaki stopnji, ob najnižji porabi električne energije in obratovalnih stroškov.

Keywords

toplotna omrežja;visokotemperaturne toplotne črpalke;grelno število;hladila;geotermalna energija;kogeneracija;plinski motorji;diplomske naloge;

Data

Language:	Slovenian
Year of publishing:	2016
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FKKT - Faculty of Chemistry and Chemical Engineering
Publisher:	[S. Ceglar]
UDC:	621.57:662.99(043.2)
COBISS:	19531542
Views:	1183
Downloads:	94
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Choosing most appropriate cooler for single-stage or two-stage hightemperature heat pump
Secondary abstract:	Crisis and decreasing supplies of fossil fuels have led to the global trend towards the search of renewable energy sources, with geothermal energy as one of the most important. At the same time we are committed to follow European directives, which were adopted last year in the form of a new Energy Act (EZ-1), with a view to ensuring security of energy supply and energy services taking into account sustainable development. The purpose of this thesis is to explore the use of high temperature heat pumps, which are used for heating for the increased number of users. These networks are used, among other things heat pumps to exploit geothermal energy from wells, using the medium of water-water, but would be a good source of energy also another untapped source of heat, with sufficient capacity and constant current. For our example, we used co-generation high temperature heat pump with a gas engine that generates extra heat and electricity, which cover their needs and sell the surplus distribution network in the target to reduce production costs. The aim of this thesis is the theoretical calculations to get the best possible heating performance using different refrigerants, heat pumps, changing the input parameters depending on the parallel or series connection of high temperature heat pumps. It was observed that the sequential binding of heat pumps, with a gradual attaching the individual pumps preferred because so by selecting appropriate high temperature heat pumps maintain the maximum coefficient of performance at each stage, at the lowest power consumption and operating costs.
Secondary keywords:	heat networks;high temperature heat pumps;heating performance;refrigerant;geothermal energy;cogeneration;gas engine;
URN:	URN:SI:UM:
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Mariboru, Fak. za kemijo in kemijsko tehnologijo
Pages:	VII, 53 str.
ID:	9135617