National Repository of Grey Literature 10 records found  Search took 0.00 seconds. 
Analysis of HVAC systems of a low-energy house
Urban, Erik ; Bahr,, Josef (referee) ; Šikula, Ondřej (advisor)
In the first part, the diploma thesis addresses the issue of comparing individual HVAC systems for family houses. The second part is an experimental measurement of HVAC systems of a low-energy family house. The third part deals with the current state of heating and air conditioning of the family house, together with a certificate of energy performance of buildings. The diploma thesis is more focused on the experimental part.
Design of a family house ventilation system
Hrbata, Jiří ; Zerzaňová, Alena (referee) ; Fišer, Jan (advisor)
Diploma thesis deals with design of the ventilation system for low-energy house. Introduction of the thesis is focused on ventilation needs and also includes a summary of main principals of ventilation systems which are commonly used in family houses. One chapter is dedicated to utilization of ground heat exchangers and also includes a CFD simulation. The actual design of the ventilation system for low-energy house assess the suitability of using local/central ventilation units and also determines the best method of controlling the system.
Substitution of a classic ground heat exchanger by a brine one in a family house with warm-air heating system
Sokola, Robert ; Kolbábek, Antonín (referee) ; Jaroš, Michal (advisor)
The thesis deals with an energy simulation of a ground heat exchanger (GHE) in classical and brine performance, which is used as an accessory of warm air heating system recovery in a low-energy family house. On basis of simulation results, the benefits of both heat exchangers were assessed. Furthermore, the energy and economics savings of heat recovery coupled with GHE were evaluated. Comparing the investment costs, the profitability of each investment were assessed and recommendations for the operation, implementation and appropriateness were outlined.
Energy simulation of ground heat exchanger influence to operation of warm-air heating recuperation unit
Kolbábek, Antonín ; Pešek, Martin (referee) ; Jaroš, Michal (advisor)
The thesis deals with energy simulation of a heat recovery system in coupling with a ground heat exchanger (GHE) in a low-energy family house with warm-air heating and ventilation. The effect of GHE on operation and effectiveness of a heat recovery unit was assessed from the results of the simulation. Next, energy and economic benefits of the heat recovery with and without GHE and consequent savings were evaluated as well. The profitability of the investment was assessed using comparison with the investment costs. Recommendations for the operation of the system were suggested.
Analysis of boundary conditions of ground heat exchangers
Floreková, Skarleta ; Horák, Petr (referee) ; Hirš, Jiří (advisor)
Diplomová práca,, ,,Analysis of boundary conditions of ground heat exchangers,, je primárne zameraná na analýzu okrajových podmienok a hlavných faktorov vplývajúcich na spoľahlivý návrh a prestup tepla plošného zemného výmenníka v oblasti geotermálnych aktivít na kúpeľnom ostrove v Piešťanoch. Posúdenie možných vplyvov na životné prostredie, ako je napríklad vznik tepelných zmien v dôsledku extrakcie tepla vrátane zamŕzania pôdy v okolí potrubia a potenciálneho znečistenia podzemných vôd je taktiež rozoberané. Súčasťou tejto záverečnej práce boli spracované tri numerické analýzy metódou konečných prvkov pomocou softvéru COMSOL Multiphysics 5.6., ktoré sa môžu vyskytnúť v tejto konkrétnej oblasti. Prvá numerická analýza je podrobená štúdii dynamických procesov plošného zemného výmenníka tepla a zeminy nasýtenou vodou pri konštantnej teplotnej okrajovej podmienke pôdy. Dynamický proces zemného výmenníka tepla a nasýteného podložia pri nestálej teplotnej okrajovej podmienke je skúmaný v druhej numerickej analýze. Posledná analýza je vyhotovená na posúdenie prevádzky plošného zemného výmenníka tepla s možnosťou prúdenia podzemnej vody v rovnakej vrstve. Vďaka týmto numerickým štúdiám a výsledkom dynamických tepelných modelov, každá prípadová štúdia obsahuje rozloženie teplôt v zemine, výstupné teploty z výmenníka a vlastný čiastočný záver.
Analysis of HVAC systems of a low-energy house
Urban, Erik ; Bahr,, Josef (referee) ; Šikula, Ondřej (advisor)
In the first part, the diploma thesis addresses the issue of comparing individual HVAC systems for family houses. The second part is an experimental measurement of HVAC systems of a low-energy family house. The third part deals with the current state of heating and air conditioning of the family house, together with a certificate of energy performance of buildings. The diploma thesis is more focused on the experimental part.
Analysis of boundary conditions of ground heat exchangers
Floreková, Skarleta ; Horák, Petr (referee) ; Hirš, Jiří (advisor)
Diplomová práca,, ,,Analysis of boundary conditions of ground heat exchangers,, je primárne zameraná na analýzu okrajových podmienok a hlavných faktorov vplývajúcich na spoľahlivý návrh a prestup tepla plošného zemného výmenníka v oblasti geotermálnych aktivít na kúpeľnom ostrove v Piešťanoch. Posúdenie možných vplyvov na životné prostredie, ako je napríklad vznik tepelných zmien v dôsledku extrakcie tepla vrátane zamŕzania pôdy v okolí potrubia a potenciálneho znečistenia podzemných vôd je taktiež rozoberané. Súčasťou tejto záverečnej práce boli spracované tri numerické analýzy metódou konečných prvkov pomocou softvéru COMSOL Multiphysics 5.6., ktoré sa môžu vyskytnúť v tejto konkrétnej oblasti. Prvá numerická analýza je podrobená štúdii dynamických procesov plošného zemného výmenníka tepla a zeminy nasýtenou vodou pri konštantnej teplotnej okrajovej podmienke pôdy. Dynamický proces zemného výmenníka tepla a nasýteného podložia pri nestálej teplotnej okrajovej podmienke je skúmaný v druhej numerickej analýze. Posledná analýza je vyhotovená na posúdenie prevádzky plošného zemného výmenníka tepla s možnosťou prúdenia podzemnej vody v rovnakej vrstve. Vďaka týmto numerickým štúdiám a výsledkom dynamických tepelných modelov, každá prípadová štúdia obsahuje rozloženie teplôt v zemine, výstupné teploty z výmenníka a vlastný čiastočný záver.
Design of a family house ventilation system
Hrbata, Jiří ; Zerzaňová, Alena (referee) ; Fišer, Jan (advisor)
Diploma thesis deals with design of the ventilation system for low-energy house. Introduction of the thesis is focused on ventilation needs and also includes a summary of main principals of ventilation systems which are commonly used in family houses. One chapter is dedicated to utilization of ground heat exchangers and also includes a CFD simulation. The actual design of the ventilation system for low-energy house assess the suitability of using local/central ventilation units and also determines the best method of controlling the system.
Substitution of a classic ground heat exchanger by a brine one in a family house with warm-air heating system
Sokola, Robert ; Kolbábek, Antonín (referee) ; Jaroš, Michal (advisor)
The thesis deals with an energy simulation of a ground heat exchanger (GHE) in classical and brine performance, which is used as an accessory of warm air heating system recovery in a low-energy family house. On basis of simulation results, the benefits of both heat exchangers were assessed. Furthermore, the energy and economics savings of heat recovery coupled with GHE were evaluated. Comparing the investment costs, the profitability of each investment were assessed and recommendations for the operation, implementation and appropriateness were outlined.
Energy simulation of ground heat exchanger influence to operation of warm-air heating recuperation unit
Kolbábek, Antonín ; Pešek, Martin (referee) ; Jaroš, Michal (advisor)
The thesis deals with energy simulation of a heat recovery system in coupling with a ground heat exchanger (GHE) in a low-energy family house with warm-air heating and ventilation. The effect of GHE on operation and effectiveness of a heat recovery unit was assessed from the results of the simulation. Next, energy and economic benefits of the heat recovery with and without GHE and consequent savings were evaluated as well. The profitability of the investment was assessed using comparison with the investment costs. Recommendations for the operation of the system were suggested.

Interested in being notified about new results for this query?
Subscribe to the RSS feed.