This diploma thesis is focused on the estimation value of the family house in the area of Slezská Ostrava. In the first part of the thesis, theoretical background is defined. Theoretical background describes the terms closely related to the issue of valuation and valuation methods that are applied to the family house. The next part consists of the description of the area, identification of the land, and the essential information about the family house from the construction and layout perspective. Furthermore, the thesis provides the description of the market in the area, as well as the database of comparable objects. The database of comparable objects was created, in order to determine the estimated market value of the property. Moreover, the cost price of the family house is assigned by using an itemized budget and cost method in accordance with the established regulation for valuation. Likewise, the correction proposal was created by estimating the coefficient for an atypical construction of the family house. In the conclusion of the thesis, the price shares of constructions stated in the valuation decree are compared with the price shares obtained from cost valuation methods.

No description available.

Decisions made at the early stage of building design can significantly influence theenvironmental, energy and economic performance of buildings. Future homeowners anddevelopers often have to make decisions concerning the design and specification of thebuilding. These choices are usually governed by functionality, aesthetics, cost, materialavailability, etc. Except for decisions related to long-term performances, they are relativelyeasy and straightforward to make. Long-term performance assessments that consider theimpact of a product over its lifetime, requires thorough research. Due to the lack of studies onthe long-term benefits and performance of different building design options, homeowners anddevelopers often base their decisions on short-term financial benefits, ignoring long-termbenefits. This may lead to incorrect decisions that are difficult to correct.Within this context, the aim of this study is to compare the long-term economic viability ofdifferent external timber wall construction types. By doing so, our goal is to address the lackof techno-economic studies within the construction industry and thus, to assist the decisionmakingof Swedish homeowners and developers. We evaluate the economic performance ofthree wooden wall construction alternatives—that of IsoTimber, cross-laminated timber(CLT), and timber frame walls—via thirteen wall assembly scenarios and two case housesfrom Bysjöstrand eco-village, Sweden. The scenarios account for variations in wall type andwall thicknesses. Our study utilizes an approach based on life cycle costing (LCC) andconsiders the capital cost and the present value of heating cost. The latter is calculated for 1m2of heated area of each case houses over a 40-year period. Indoor Climate and Energy software(IDA ICE) is used to estimate the heating energy use and the Bidcon program to estimate thematerials and labor costs for all cases. The study considered reasonable economic parameters,but to see their impact on the results and feasibility of wall constructions improving, sensitiveanalysis has been done using different values.The main finding of this thesis is that timber frame wall construction is the most economicchoice in the long term. In contrast, IsoTimber wall is the least economic choice, in general,and for two-story homes, in particular. Moreover, the present value total cost for IsoTimber intwo-story building is 5% higher than for a single-story building that has a similar U-value. Incontrast, it is 3% and 7% lower for CLT and timber frame walls respectively. Also, the resultsindicate that although the present value heating cost decreases with increasing wall thickness,this increase is considerably smaller than the increase in the capital cost. Finally, assumedeconomic factors affect the results greatly, but in general, improving the U-value of CLT wallconstruction might be the most profitable then timber frame comes after, and then IsoTimbercomes in the last. Along with, return economic benefit from the improvement of all studiedwall constructions in single-story building is higher than the benefit in two-story building.

In Sweden, there are about 0.5 million single-family houses that are heated by electricity alone, and rising electricity costs force the conversion to other heating sources such as heat pumps and wood pellet heating systems. Pellet heating systems for single-family houses are currently a strongly growing market. Future lack of wood fuels is possible even in Sweden, and combining wood pellet heating with solar heating will help to save the bio-fuel resources. The objectives of this thesis are to investigate how the electrically heated single-family houses can be converted to pellet and solar heating systems, and how the annual efficiency and solar gains can be increased in such systems. The possible reduction of CO-emissions by combining pellet heating with solar heating has also been investigated. Systems with pellet stoves (both with and without a water jacket), pellet boilers and solar heating have been simulated. Different system concepts have been compared in order to investigate the most promising solutions. Modifications in system design and control strategies have been carried out in order to increase the system efficiency and the solar gains. Possibilities for increasing the solar gains have been limited to investigation of DHW-units for hot water production and the use of hot water for heating of dishwashers and washing machines via a heat exchanger instead of electricity (heat-fed appliances). Computer models of pellet stoves, boilers, DHW-units and heat-fed appliances have been developed and the parameters for the models have been identified from measurements on real components. The conformity between the models and the measurements has been checked. The systems with wood pellet stoves have been simulated in three different multi-zone buildings, simulated in detail with heat distribution through door openings between the zones. For the other simulations, either a single-zone house model or a load file has been used. Simulations were carried out for Stockholm, Sweden, but for the simulations with heat-fed machines also for Miami, USA. The foremost result of this thesis is the increased understanding of the dynamic operation of combined pellet and solar heating systems for single-family houses. The results show that electricity savings and annual system efficiency is strongly affected by the system design and the control strategy. Large reductions in pellet consumption are possible by combining pellet boilers with solar heating (a reduction larger than the solar gains if the system is properly designed). In addition, large reductions in carbon monoxide emissions are possible. To achieve these reductions it is required that the hot water production and the connection of the radiator circuit is moved to a well insulated, solar heated buffer store so that the boiler can be turned off during the periods when the solar collectors cover the heating demand. The amount of electricity replaced using systems with pellet stoves is very dependant on the house plan, the system design, if internal doors are open or closed and the comfort requirements. Proper system design and control strategies are crucial to obtain high electricity savings and high comfort with pellet stove systems. The investigated technologies for increasing the solar gains (DHW-units and heat-fed appliances) significantly increase the solar gains, but for the heat-fed appliances the market introduction is difficult due to the limited financial savings and the need for a new heat distribution system. The applications closest to market introduction could be for communal laundries and for use in sunny climates where the dominating part of the heat can be covered by solar heating. The DHW-unit is economical but competes with the internal finned-tube heat exchanger which is the totally dominating technology for hot water preparation in solar combisystems for single-family houses. / <p>QC 20100916</p>

Baigiamojo darbo tikslas – apžvelgti individualių gyvenamųjų namų statybos technologijas, koncepcijas bei saulės energijos panaudojimą pastatuose, išanalizuoti keleto pastatytų ar projektuojamų namų rodiklius, investicijas į atskirus pastato elementus bei sukurti optimizacinį modelį, kurį naudojant būtų galima prognozuoti pastato gyvavimo ciklo išlaidas. Darbą sudaro: įvadas, kuriame trumpai aprašoma problematika, darbo tikslas ir keliami uždaviniai šiam tikslui pasiekti; analitinė dalis – individualių namų technologijos, pagrindiniai privalumai, trūkumai ir skirtumai, naujausios pastatų koncepcijos, istorija, reikalavimai, pagrindiniai aspektai, pasyvios ir aktyvios saulės energijos panaudojimo galimybės; metodinė - tiriamoji dalis – analizuojami individualūs gyvenamieji pastatai, investicijos į konstrukcijas ir šildymo, vėdinimo ir oro kondicionavimo sistemas bei pastato eksploatacijos išlaidos, kuriamas optimizacijos modelis naudojant regresinės analizės metodą; išvados ir pasiūlymai; literatūros sąrašas. Darbo apimtis: 76 p. teksto be priedų, 25 iliustr., 11 lent., 71 bibliografiniai šaltiniai. / The objective of this master thesis is to review different single family house building technologies, conceptions and opportunities of using solar power, analyze few different detached houses, investments to different building parts and create optimization model which would allow to forecast lifecycle cost of a project. Thesis contains: introduction, where issues of the topic , purpose and tasks are discussed; analytic part – building technologies of single family houses, main advantages, disadvantages and differences, building conceptions, history, requirements and aspects of different conceptions are presented, opportunities of passive and active solar power usage in detached houses; methodical - research part – evaluation of few different single family houses, analysis of investments to building envelope constructions, heating, ventilation and air conditioning systems and building operation cost, creation of optimization model by using regresion analysis method; conclusions and suggestions; references. Final thesis consists of: 76 p. of text without appendixes, 25 pictures, 11 tables, 71 references.

Submitted by Renata Lopes (renatasil82@gmail.com) on 2015-12-03T18:28:49Z No. of bitstreams: 1 victorhugogodoydonascimento.pdf: 2861007 bytes, checksum: a2a2d7ffa876b0832c4bc0649b4d9aeb (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2015-12-03T21:30:29Z (GMT) No. of bitstreams: 1 victorhugogodoydonascimento.pdf: 2861007 bytes, checksum: a2a2d7ffa876b0832c4bc0649b4d9aeb (MD5) / Made available in DSpace on 2015-12-03T21:30:29Z (GMT). No. of bitstreams: 1 victorhugogodoydonascimento.pdf: 2861007 bytes, checksum: a2a2d7ffa876b0832c4bc0649b4d9aeb (MD5) Previous issue date: 2015-07-27 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / O reconhecimento do patrimônio em Juiz de Fora, iniciado pelo poder público municipal no início dos anos 1980, teve como um de seus pilares as habitações unifamiliares da região do Alto dos Passos. No entanto, a forma como essas edificações foram elevadas à categoria de patrimônio municipal foi pouco explorada nas pesquisas de âmbito local. Os “casarões”, como são frequentemente chamados, foram construídos na atual avenida Barão do Rio Branco entre o final do século XIX e meados do século XX. Trata-se de edificações erguidas pelos segmentos mais abastados da sociedade juiz-forana, sobretudo proprietários de fazendas de café e industriais locais. No início dos anos 1980 eram os especialistas da área que diziam o que era e o que não era patrimônio, consagrando, via de regra, as edificações construídas pelas elites. Assim, o principal objetivo deste trabalho é identificar de que forma os agentes do patrimônio em Juiz de Fora converteram algumas habitações unifamiliares da região do Alto dos Passos em patrimônio municipal. A partir dos discursos elaborados por esses agentes, presentes tanto nas publicações referentes ao tema quanto nos processos de tombamento de ditas edificações, propomo-nos a investigar, à luz da teoria atual do patrimônio, da memória, da história e do discurso, como se construiu parte do patrimônio da cidade de Juiz de Fora. As manifestações presentes nos processos de tombamento se mostram como uma oportunidade singular para identificar de que forma os agentes envolvidos recorrem a modalidades discursivas, com o intuito de se atingir os seus respectivos objetivos. O estudo dos agentes que influenciaram o processo de desenvolvimento da cidade demonstra tanto a complexidade das relações que existem entre o ambiente construído e o contexto social, econômico, cultural e político que permite a tomada de decisões sobre o espaço urbano, como também revela uma ideia da cidade que os indivíduos desejam construir, lembrar ou esquecer. / The acknowledgement of the heritage in Juiz de Fora, initiated by the municipal government in the early 1980s, had as one of its mainstays the single family houses of the Alto dos Passos region. However, little attention was given in the local level research to how these buildings were elevated to the category of municipal heritage. The often called "grand houses" were built in the current Baron of Rio Branco Avenue between the late nineteenth and mid-twentieth century. These are buildings erected by the wealthiest segments of Juiz de Fora’s society, especially owners of coffee farms and local industrialists. In the early 80s the experts in the field were the ones who said what was and what was not heritage, almost always electing the buildings constructed by the elites. Thus, the main objective of this work is to identify how the heritage agents in Juiz de Fora converted on municipal heritage some single family houses of the Alto dos Passos region. Based on the speeches elaborated by these agents wich are present both in publications on the topic as in preservation’s lawsuits of this buildings, we propose to investigate how part of Juiz de Fora’s heritage was built, using the current heritage, history and speech theory. The demonstrations present on preservation’s lawsuits appear as a unique opportunity to identify how those involved agents resort to discursive modes in order to achieve their respective goals. The study of agents that influenced the city's development process demonstrates both the complexity of the relationships that exist between the built environment and the social, economic, cultural and political context that allows decision-making on urban space, as also reveals an idea of the city that individuals want to build, remember or forget.

The residential sector was responsible for 25% of the Final Energy Demand (FED) in the European Union in 2015. Countries in Central and Eastern Europe such as the Czech Republic are particularly concerned with ensuring security of supply at the lowest possible cost in recent years. FED for space heating still corresponds to the largest fraction of the total FED in the residential sector in the Czech Republic. The vast majority of buildings constructed in 1990- 2000 do not comply with current standards for thermal protection and owners often rely on their own financial means when attempting to improve the overall Energy Performance (EP) of buildings. The goal(s) associated with renovation- or refurbishment measures must be defined to clarify the extent of work and consequently minimize investments. The aim of this thesis, a case study, was to use a whole building energy simulation program (IDA-ICE) to get insight into the potential of different retrofitting measures (represented by scenarios) to improve EP of a single-family summer house located in the South Bohemian Region of the Czech Republic. One of the simulated scenarios was the owner ́s suggestion to replace windows and entrance doors. The goal was to reduce FED for space heating to ≤50 kWh.m-2 floor area and year and by doing so attaining the status of a low-energy building. Simultaneously, reduced FED for space heating was supposed to be achieved without compromising air quality and should involve only the most efficient refurbishment measures to minimize the overall work. The scope was strictly limited to EP improving measures without consideration of mechanical ventilation or modification of the currently used space heating system. It was concluded that the owner's suggestion to merely replace windows and entrance doors would be an insufficient solution. SC-4 (i.e. the combined effect of windows and entrance doors replacement and the ground-floor insulation) and SC-5 (i.e. the combined effect of ground-floor insulation and the insulation of external walls and the roof) were deemed to represent the most optimal solutions from the simulated EP improving measures. The goal was achieved in both, i.e. 46.8 kWh.m-2 floor area and year in SC-4 and 44.3 kWh.m- 2 floor area and year in SC-5. Averages of zone air temperatures in selected zones were found to be more stable in SC-4, however, SC-5 performed better when comparing averages of CO2 concentration-values in selected zones on the first floor. Nevertheless, averages of relative humidity and CO2 concentration-values in all simulated scenarios were within the acceptable range of 35-60% and about 520 to 1000 ppm respectively (except for Bedroom 2 zone).

Most of the detached houses in Sweden were built more than 30 years ago, and most of them are oldand need a deep renovation. The renovation is an excellent opportunity to apply the energy measure witha combination of renewable energy such as PV solar, which could be a great option to reduce energyconsumption and contribute to reducing greenhouse emissions. For this reason, selecting effectiverenovation scenarios for buildings could be important and challenging. One of these challenges isapplying typical scenarios for one archetype's buildings. A building could be in the same archetypeswith similar geometry and properties but in different directions. In this study, the researcher aims toinvestigate the yearly heat demand energy saving of buildings from one archetype, the same renovationscenario, and the same area but in four different directions, 0-30-60-90 degrees from the south (casestudies).This project's additional aim is to examine the electricity generation from PV when installedon one and both sides for four houses in the same area in four different directions, 0-30-60-90 degreesfrom the south. Design Builder software was used as a graphical user interface through the Energy Plus engine. In thisway, the heat demand of case studies was simulated for different scenarios (Standard renovation andadvanced renovation) in the Växjö region. The results from the simulation of the houses with differentdirections showed that the heat demand energy decreased by, on average, 20% for standard and 28% foradvanced renovation. The comparison of the case studies with the same renovation scenario concludesthat they are no differences in the heat energy savings, which means the direction of the building has nobig impact on the energy saving of the renovation scenario in the Växjö region. The installation side ofthe PV has no impact on the annual electricity generation from PV for the house with a direction of 0degrees from the south. For the other houses, the yearly electricity generation from the PV increased by36.8% with one side on the roof (South direction). House number 4 is the best direction to install PVwith one side on the roof (south direction), and house 3 is the next best direction to install PV on oneside. When installed on both sides of the roof, the annual electricity generation from the PV decreased by5,3% with four houses in different directions. The changes are not so high may be due to the weather ofthe Växjö, which is 65 % cloudy according to the weather data file from TMY. Another reason is thatthe PV was installed on both sides of the pitched roof. When the houses have different directions, 0 to90 degrees from the south, that may be increased the electricity generation from the PV on one side andreduce it on the other.

El presente trabajo de investigación está orientado a desarrollar un proyecto inmobiliario de una urbanización conformada por módulos de vivienda unifamiliares, ubicada en una zona periurbana del distrito de La Joya, provincia de Arequipa. El predio se caracteriza por tener un gran potencial debido al costo oportunidad del precio del terreno, que permite realizar un proyecto de este tipo. En años recientes, en el sector, se ha venido dando habilitaciones urbanas destinadas, en su totalidad, a casas de campo para los niveles socioeconómicos A y B, soslayando a familias del nivel socioeconómico D; por esta razón el proyecto representa una interesante propuesta al no contar con competencia en la oferta del sector. Este se iniciará con la habilitación urbana de un terreno de 40 896.00 m², teniendo como resultado un área útil de 25 056.00 m², distribuidos en 261 lotes de 96.00 m². En cada uno de estos lotes se edificará un módulo de vivienda unifamiliar básico de 38.29 m² de área techada. Asimismo, comprende un estudio de mercado que marcará las pautas para la definición del producto adecuado a las preferencias y necesidades del cliente objetivo. El estudio de mercado, incluso, presenta un interesante déficit entre la oferta y demanda de este tipo de vivienda en la población de la ciudad de Arequipa, el cual es redituado por el proyecto. El trabajo incluye, además, un análisis de diferentes sistemas constructivos teniendo en cuenta los siguientes indicadores: eficiencia, eficacia, mercado y normatividad. El planeamiento del proyecto se realiza tomando herramientas de Lean Construction para asegurar el cumplimiento de plazos. El trabajo culmina con un flujo de caja, el cual refleja, en sus indicadores, el atractivo académico del proyecto para potenciales inversionistas. / This research work is aimed at developing a real estate project of an urbanization formed by single-family housing modules, located in a peri-urban area of the district of La Joya, province and region Arequipa. The property is characterized by having great potential due to the opportunity cost of the land price, which allows to carry out a project of this type. In recent years, in the sector, it has been giving urban habilitations destined, in its entirety, to houses of country for the socioeconomic levels A and B, bypassing to families of the socioeconomic level D; For this reason the project represents an interesting proposal by not having competition in the supply of the sector. This will begin with the urban habilitation of a field of 40896.00 m², resulting in a useful area of 25056.00 m², distributed in 261 lots of 96.00 m². In each of these lots a basic single-family housing module of 38.29 m² of covered area will be built. It also includes a market study that will mark the guidelines for the definition of the product appropriate to the preferences and needs of the target customer. The market study, even, presents an interesting deficit between the supply and demand of this type of housing in the population of the city of Arequipa, which is hoax by the project. The work also includes an analysis of different constructive systems taking into account the following indicators: efficiency, efficiency, market and regulation. Project planning is done by taking Lean Construction tools to ensure deadlines. The work culminates in a cash flow, which reflects, in its indicators, the academic appeal of the project for potential investors. / Trabajo de investigación

A real-world study was undertaken of the indoor air quality in a recently-built single family home in central Sweden, to establish whether demand controlled ventilation provided superior interior conditions, when compared with other air supply strategies, including the standard used by the Swedish buildings regulator. The property was highly airtight, with ventilation achieved using a forced exhaust system. Extraction was possible from all rooms of the house, and using a Renson Healthbox air handling unit, the rates of air flow from each room could be adjusted either according to a time schedule, or under demand control according to the unit’s sensing of the air quality in individual rooms. Five ventilation modes were evaluated, each for a period of 24 hours. Occupancy of the house was standardised, with test participants. Two separate air quality monitors were deployed to verify whether measurements made at the air handling unit were representative of the conditions that occupants experienced. Key measurements were the stable level of carbon dioxide overnight in an occupied double bedroom and the time taken for that room to refresh to background CO2 level the following day. The time taken for a kitchen/living room to similarly refresh was also examined. The study found that demand controlled ventilation achieved indoor air quality – assessed on carbon dioxide concentration – comparable with rates of fixed ventilation far greater than the regulated standard. In doing so, the air volume exchanged over a representative day was 33 % less than that standard, providing for significant energy savings. The parallel monitoring of air quality inside the room and via the air exhaust duct showed noticeable variation, but indicated the air handling unit under demand control would never ventilate insufficiently, based on its internal CO2 sensors.