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Assessing the Return on Investment in a Passive and Standard House
Krus, Tomáš ; Křivánek, Miroslav (referee) ; Hlavinková, Vítězslava (advisor)
The aim of this thesis is to compare economic investment in passive houses and conventional construction of a house. Furthermore, this thesis is focused on introducing problematics connected to construction of passive house, main characteristics, differences in used materials including review of advantages and disadvantages of their implementation. Assessment is based on return ability of initial investments generated by lowering operational costs. Main part of this thesis is aimed on compression of costs both before and in use of a house.
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Water to water heat pump design
Jašek, František ; Formánek, Marian (referee) ; Hejčík, Jiří (advisor)
First part of my diploma thesis contains theoretical description of compressor based heat pumps, refrigeration cycle, main components of refrigeration cycle and auxiliary equipment. Second part contains the heat pump WATER-WATER desing. It will be used for heat recovery from cogeneration units in heating plants.
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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.
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Sewer mining
Šebek, Josef ; Macsek, Tomáš (referee) ; Hlavínek, Petr (advisor)
This bachelor thesis presents the topic of waste water reuse straight from the sewer system (sewer mining). It contains energy recovery (heat recovery in particular) from sewer system as well as wastewater treatment and reuse in demanded locations, in compliance with the policies of circular economy. The first part contains research of wastewater topic. Individual components of municipal wastewater, treatment and reuse options are characterized in this part of thesis followed by more detailed description of methods and technologies for heat recuperation from wastewater; and available technologies for sewer mining options at the end of the first part. The second part contains a technical study about wastewater heat recovery on a specific location.
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Airconditioning of hockey hall
Novotný, Jan ; Uher, Pavel (referee) ; Rubina, Aleš (advisor)
The topic of this Bechelor thesis is a design of two air handlig units for hockey hall and background join whit it. The device are design to meet the operating, hygienic and fuctional requirements for internal microclimate. Unit No. 1 serving the changing rooms and the nearest hockey hall facilities will ensure fresh air filtration, heat recovery, heating of the supply air in the transition and winter period by means of a water exchanger and cooling of the supply air in the summer period, without controlled adjustment of relative humidity. Unit No. 2 will ensure hygienic ventilation with fresh air in the area of the hall itself, dehumidification of this area and its cooling. The theoretical part is focused on the options when it comes to cooling in an air handling.
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Heating motherly school with heat pump and solar collectors with additional heating to the open air pool
Preclík, Vítězslav ; Krhovský, Bohumil (referee) ; Mastný, Petr (advisor)
In 2007, in June the company Europrojekt entered the project with the requirement of the formulation and implementation of heating motherly school by heat pumps in the village Hluk. The projekt was ordered by the management of this motherly school. This is a total reconstruction of the heating system building motherly school, including the use of residual heat for heating the pool water in an open swimming pool, which is located near this motherly school. The requirement is also given to reduce environmental pollution and achieve energy savings. This diploma thesis solves the detailed description of solutions and calculations for each part. In first, the introductory part of the work is focused on getting the project, a description of the object motherly school and a proposal for the energy measure before the realization. Second section is devoted to the selection and design of the system of heat pumps and solar collectors. Next part of work is the use of the residual heat for heating the pool water in the transitional months, i.e. May, September and the main months June, July, and August, when should be the visit of the swimming pool the biggest. In addition, resolving heat recovery through plate exchangers, the calculation of storage tanks, valves insurance proposal, the expansion tank, circulation pumps, etc. The last part thesis addresses the energy and economic assessment of the whole project.
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Heat recovery ventilation unit
Balák, Jan ; Fišer, Jan (referee) ; Hejčík, Jiří (advisor)
This bachelor thesis will inform readers about residental buildings ventilation posibilities, higyenical standarts of ventilation, sorting of heat recovery units used for heat recovery in residental buildings. Moreover, specific house will be choosen and its ventilation demands will be calculated. Than conveniend ventilation and heat recovery equipment will be search, because of optimalization of ventilation and heat losses.
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Design of a heat exchanger for the recovery of waste heat from a sewerage system
Novák, Filip ; Baláš, Marek (referee) ; Toman, Filip (advisor)
The theoretical part of bachelor thesis was focused on heat exchangers and wastewater heat recovery systems. In theoretical part, everyday applications and practical notes of heat exchangers and recovery systems were emphasized. In practical part of thesis, heat calculation of double tube heat exchanger was carried out for operation in winter months. Using --NTU method, heat output of exchanger was recalculated for each month separately, from which, the total heat recovered in the course of year was calculated. Last part of the thesis was focused on a economical aspect of the heat exchanger (manufacturing and maintenance costs). This amount of money was compared with cost of water heating using heat pump, gas boiler and automatical wood pellet boiler.
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Airconditioning of hockey hall
Novotný, Jan ; Uher, Pavel (referee) ; Rubina, Aleš (advisor)
The topic of this Bechelor thesis is a design of two air handlig units for hockey hall and background join whit it. The device are design to meet the operating, hygienic and fuctional requirements for internal microclimate. Unit No. 1 serving the changing rooms and the nearest hockey hall facilities will ensure fresh air filtration, heat recovery, heating of the supply air in the transition and winter period by means of a water exchanger and cooling of the supply air in the summer period, without controlled adjustment of relative humidity. Unit No. 2 will ensure hygienic ventilation with fresh air in the area of the hall itself, dehumidification of this area and its cooling. The theoretical part is focused on the options when it comes to cooling in an air handling.
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