This diploma thesis focuses on the design of heating and hot water reservoir in an apartment complex. For three variants of heat sources (gas condensing boiler, heat pump and electric boiler) is evaluated their economic profitability for heating and hot water heating. For the best selected heat sources is drawn up the technical solution of heating in the apartment complex.

Proposal for heating and water warming of rehabilitation centre. The first part of the project analyses given topic, the matter of calculating heat losses and heating elements proposal. It also deals with heat source for heating, fuel for boilers and condensation boilers functioning. The second part covers the technical design of the theme and the third part deals with the solar system.

The masters thesis is focused on design of the device for measurement of the aerodynamic forces and moments acting on radiators mounted in the wind tunnel test section. The thesis also includes the analysis of the aerodynamic drag which is produced by radiators and the LabView application software development.

The aim this diploma thesis is the design of heating and hot water in the building of a primary school in Trhové Sviny. The first part dealt with the issue of indoor environment and windows. The second part deals with a separate proposal heating and hot water in primary school. As a heat source was designed gas boiler, the second variant hot transfer station. The third part consists of technical reports and drawings of the specified object. The fourth part deals with the assessment of surface condensation on the surface of the window panes.

The aim of this diploma thesis is to find a solution of heating system, a hot water preparation and a subsequent design of the heat source for the apartment building. The project consists of a calculation of heat losses, a design of radiators, a dimensioning of pipes and a design of two options of the heat source for heating and hot water preparation. The first option of the heat source I chose a pellet boiler and the second option is an electric boiler with solar collectors for the preparation of hot water. The introductory part deals with analysis of this object and emission limits of heat source using different fuels.

Design of heating of hotel type. The first part describes the analysis of the building and heating heat pumps theory and evaluation systems with heat pump. In the second part we find two variants of technical solutions. The third part contains solutions for selected variant and it is heating with gas boiler.

The main concern of this thesis is to design heating system for 5 storey apartment building in two alternatives of heat source - with a heat pump and with traditional gas boiler. Both applications are connected to two-pipes distribution system in building using the low-temperature water and radiators. The proposal takes account of the the production of hot water. The one of aims is to compare both variants also from the economic point of view. The experimental part is divided into two parts. The first part deals with the obligation to control efficiency of boilers, imposed by the Energy efficiency law No. 177/2006 Co. and § 6, sect. 2 - 5 and related regulation No. 276/2007 Co. The second part deals with the assessment of monitored room for proper regulation of the heating system.

Systemtemperaturer i värmesystem är en debatterad fråga i Sverige. Vid projektering av ett värmesystem har valet av systemtemperatur en avgörande roll för kostnaden av värmesystemet. Frågan vilka systemtemperaturer i värmesystemen som är det mest ekonomiska är viktig för att värmesystemet ska ha en fördel jämfört med konkurrenterna på marknaden. Historiskt sett har systemtemperaturerna i de svenska värmesystemen varit 80/60 medans idag är den vanligaste temperaturerna 55/45. Under 60-talet stod Östen Sandberg som förespråkare för ett nytänkande värmesystem kallat lågflödesystem (LF). Detta värmesystem använder sig av låga flöden i rörledningarna och stora temperaturskillnader på framledningen och returledningen. Förespråkare av dessa lågflödesystem hävdar att vid rätt användning kan en omjustering av det befintliga värmesystemet från ett högflödesystem (HF) till ett lågflödesystem drastigt reducera energiförbrukningen för fastigheten och samtidigt uppnå acceptabla inomhusförhållanden. Hade ett LFsystem kunnat konkurrera mot ett HFsystem ekonomiskt? För att undersöka detta kommer ett 55/45-HFsystem att användas som ursprungsfall vid jämförelser mellan HFsystem och LFsystem med olika systemtemperaturer för att utreda om ett 55/45-HFsystem är det mest ekonomiska värmesystemet. Studien visar många fördelar med 55/45-HFsystemet. Ett 55/45-HFsystem har relativt låga investeringskostnader vid projekteringen i jämförelse med de andra värmesystemen. En annan fördel är att detta värmesystem är kompatibelt med både fjärrvärme samt bergvärme vilket gör detta system passande som ett standardiserat värmesystem. Det mest ekonomiska värmesystemet är ett 80/60-HFsystem, vilket har lägre investeringskostnader för både radiatorer samt rörkostnader. Förespråkare av LFsystem hävdar att de reducerade flödena medför reducerade elkostnader för cirkulationspumpen vilket i längden gör LFsystemet energisnålare. Denna studie visar att de reducerade flödena och dess påverkan av energiförbrukningen hos cirkulationspumpen är förhållandevis så låga i jämförelse med de totala energiförbrukningen hos värmesystemet att den möjliga vinsten är försumbar. Däremot kan de reducerade flödena minska risken för en snedfördelad värmefördelning i fastigheten. LFsystemens stora nackdel är ökade investeringskostnader jämfört med HFsystemen. / The choice of temperatures in heating systems has long been a question for debate in Sweden. For the design engineer, the choice of system temperatures in a heating system has a decisive impact on the cost and in order to stay competitive on the market it is crucial to design the heating system as cost effective as possible. Historically the system temperature in Swedish heating systems has been 80/60 but today we see that the most common temperatures are 55/45. During the 1960´s Östen Sandberg became the leading advocate for a new type of heating system using a low flow principle (LF) for heat distribution. The LF principle requires a larger temperatur difference between the supply and return temperatures for the adequate heating. Advocates of the LF principle claims that large energy savings are possible if an exsisting high flow heating system (HF) undergoes an adjustment to a LF heating system. The question is how accurate is this claim? This article shows many advantages with the nowadays common 55/45-HFsystem. A 55/45-HFsystem has relatively low investment costs in comparison with other types of heating systems. Another advantage is the fact that the 55/45-HFsystem is compatible with both district heating and geothermal heat pump heating systems which makes this radiator system suitable as a standardized system. The most economical radiator system is the 80/60-HFsystem, which has a lower investment cost for both radiators and piping in comparison with a 55/45-HFsystem. The claim that LFsystems and the associated LF principle could result in a reduced energy cost for the heating system was not supported. This article shows that the energy savings that comes from the LF principle is negligible in comparison with the heating systems total energy cost. The LF principle could however reduce the risk of an uneven heating distribution in the building due to a more unpredictable regulation of the flow through the radiators. LFsystem disadvantage is an general overall larger investment cost in comparison with a HFsystem.

This Master's thesis deals with the evaluation of a current state of two-generation villa and its following proposal of the optimization. Evaluation includes calculation of heat loss of a current state. Optimization is based on the reduction of heat loss in the building, pressure balance of the system, change of heat source and installation of balanced ventilation. Chapter describing regulation of technology follows and in conclusion indicative price for the whole suggested technology is calculated.

The topic of this diploma thesis is the operational efficiency of heat sources. The work had several goals. The first was to determine the efficiency of the wood boiler according to available calculation methods and to compare the methods among them. The second was to determine the difference in the performance of the flue gas analyzer and the real calculation. Further, to determine the efficiency of a boiler firing different wood species - spruce and hornbeam based on their properties and elemental composition. Experimental measurement of various operating states of effectiveness took place in an older two-generation family house, which was also the subject of the project part. Due to lack of project documentation, it was necessary to focus and plot the object. Afterwards, the building was thermally inspected and the design of the heating system and the reconstruction of the whole heating system was carried out. The project was developed in two variants for two different heat sources - a heat pump and a solid fuel boiler for heating and water preparation. The thesis deals with the technical report, the conceptual solution of the related professions, the evaluation of the heat source variants and the project documentation.