This master's thesis talks about main burners of clinker rotary kiln. The first part is focused on the review of burners designed by main global producers. Description of the burners M.A.S.© and Turbu-Flex™ used in kiln system CEMMAC a.s. is in the next part. The influence of the replacement of M.A.S.© burner by Turbu-Flex™ burner is analysed in the last part of this thesis.

The diploma thesis is concerned with selection of the optimal heat pump for model family house heating (and domestic hot water – DHW - preparation) where the preferred aspect is the fastest economic return. As a part of the diploma thesis there is an introduction into the heat pumps field and also heat pumps dividing according to their lowpotential heat withdrawing. Calculating part includes both heat loss and electric energy consumption calculation of the object. Moreover there is stated a presentation of leading heat pump producers in the Czech Republic, including their price bids which are compared with their economic return. In conclusion there is presented an economic comparison of electric energy consumption of the object which is provided with the heat pump in contrast to other regular heating systems.

Baigiamajame magistro darbe buvo išanalizuota didelių įstiklintų atitvarų plotų įtaka šildymo ir vėsinimo energijos sąnaudoms. Atlikta stiklo paketų, jų terminių savybių bei pasyvių energijos taupymo priemonių taikymo apžvalga. Konkretiems objektams pasirinkti penki energijos poreikių analizės variantai. Nustatyta, kaip energijos poreikius įtakoja didžiausio įstiklinto pastato fasado orientacija pasaulio šalių atžvilgiu, skirtingos stiklo paketų optinės ir šiluminės savybės bei pasyvių energiją taupančių priemonių naudojimas. Išnagrinėta apie septyniasdešimt skaičiavimo variantų. Palyginti skirtingų vėsinimo poreikių skaičiavimo metodikų rezultatai. Atlikta 2009 – 2010 m. šildymo sezono vidutinių išorės oro temperatūrų analizė. Natūrinėmis sąlygomis nustatytas patalpų oro temperatūros ir santykinio drėgnumo kitimas ir palyginta su reglamentuojamomis vertėmis. Nagrinėjamajame objekte atlikta skaičiuojamųjų ir faktinių šilumos suvartojimų, perskaičiuotų į norminius dydžius, palyginamoji analizė. / The Master's degree paper analyses the influence of large glazed areas of heating and cooling energy costs. Carried out the review of glazing, their thermal properties and the passive energy saving measures. The analysis of five options for energy needs of certain objects has been done. Established the affect to energy needs of the largest glazed façade orientation of the world's countries, different glazing optical and thermal properties and passive energy-saving tools. Examined about seventy calculation options. The results of different methods of calculating the cooling needs have been compared. Carried out the average outside air temperature analysis in 2009 - 2010 heating season. At subsistence conditions the indoor air temperature and relative humidity has been identified, and compared with the governing values. The comparative analysis in considered object of estimated and actual consumption of heat, expressed in the normative values, has been done.

The diploma thesis deals with comparison of heat loss calculation by CSN 06 0210 and CSN EN 12831. This work contains short introduction to the heat loss calculation, definition of basic terms, detailed analysis of heat loss calculation by both standards, description of exemplar buildings, heat loss calculation and heat requirement for heating of buildings according to particular standards. At the end of the work the comparison and discussion of calculation results is presented.

The first part of diploma thesis describes how to measure the parameters of solar thermal collector and solar thermal system. The computational part analyzes heat consumption in the evaluated building and describes design of the solar thermal system for domestic hot water. Last part focuses on the energy assessment of the designed solar system above and evaluation of the solar system, which is located at the Faculty of Civil Engineering in BUT.

Utvecklad för att bibehålla termisk komfort och minska exergianvändningen, Free Heat Exchange Window [FHEW] är en fönsterdesign som är tänkt att ersätta konventionella värmesystem i bostäder och kontorsbyggnader. Baserat på dubbelspaltkonceptet kommer fönstret utgöra en värmekälla under kalla vinterdagar och en värmesänka under varmare sommardagar. För att värdera huruvida teknologin kan bibehålla tillräcklig termisk komfort och avgöra dess optimala parameterkonfiguration utifrån byggnadens effektbehov skapas två olika modeller. En grundar sig på en datorsimulering av en lägenhet i COMSOL Multiphysics och den andra är en analytisk metod för beräkning av energibalanser i MATLAB. Resultaten från båda modellerna påvisade att hög inströmningstemperatur och låg inströmningshastighet är att föredra för minimering av effektbehovet. Å andra sidan ger en låg inströmnings temperatur och hög strömningshastighet en upphov till högre termisk komfort. Valet av den isolerande gasen som används i mittersta gas-spalten bedöms ha låg inverkan på prestandan, särskilt för höga strömningshastigheter. En alternativ modell med den isolerande gas-spalten omplacerad närmast utomhuset skulle kunna framföra bättre användning av den isolerande gas-spaltens funktion. Datorsimuleringen jämförs avslutningsvis med en ekvivalent lägenhetsmodell med enkelspaltiga fönster och element som värmekälla. Denna modell kräver lägre effekt, men är samtidigt mindre flexibel och inducerar en lägre termisk komfort. Datorsimuleringen rekommenderas på grund av dess antaganden och i vissa fall orimliga resultat endast som jämförelse med andra liknande modellen, snarare än verkliga data. / Developed to maintain thermal comfort and reduce exergy usage, Free Heat Exchange Window [FHEW] is a modern window design aimed to replace current heat systems in homes and office buildings. Based on the double slot concept, the window can be used as a heat source during cold winter days and heat sink during warmer summer days. To evaluate if the technology is viable to maintain thermal comfort and determine its optimal parameters with respect to energy efficiency, two different models will be made. One is based on computer simulations in COMSOL Multiphysics and one is based on analytical equations in MATLAB. The results from both models proved that a higher inflow temperature and a lower flow rate was prefered to minimize power demand. On the contrary, a lower inflow temperature and a higher flow rate is preferred to achieve the best thermal comfort. The differences between the choice of insulation gas gave unnoticeable deviation for indoor heat exchange for high flow rates. An alternative window model could reposition the insulation gas-gap to be between the whole system and the outdoors environment, instead of having it installed between the flowing air-gaps, for better use of the low thermal conductivity. The computer simulation is finally compared with an equivalent model using regular single slot windows and radiators as heaters. This model requires less energy but is less flexible and induces a less desirable thermal comfort. The computer simulation is due to its assumptions and in some instances implausible results only recommended to be compared to similar models, rather than real data.

This master’s thesis deals with the energy assessment of an administrative building. The theoretical part is devoted to legislation for energy assessment – law, regulations and technical standards. The application of this legislation is provided in the calculation part as energy audit and energy performance certificate of the administrative building. The last part of this thesis is dedicated to application of computational softwares for analysing results of heat consumption in comparison with reality.

The aim of the thesis is a design of the best energy measures for a family house. At first there is carried out an energy assessment of the building. According to results of that survey there are drawn up some variants of measures. Furthermore, based on energy assessment results there is elaborated a project for reconstruction of the heating.

Thesis deals with the usage of energy from recoverable resources. Theoretical part of thesis includes the description of the utilisation of heating pumps, solar radiation and biomass. The real status of the implementation is described in the second part of the thesis. Last part of the thesis contains the energy and economy valuation of real implementation.

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.