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Academic literature on the topic 'Smart byggnad'
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Dissertations / Theses on the topic "Smart byggnad"
Marefat, Emil, and Sandra Valdani. "Innovationer inom fastighetsförvaltning : Lönsamheten i att komplettera regleringen av uppvärmningen i en byggnad med mobilstyrning." Thesis, KTH, Fastigheter och byggande, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231803.
Full textAs society is increasingly digitalized our lives are changing rapidly in many areas of everyday life, one of them is the homes in which we live. The concept of a smart home has been around for some time and new innovations continue to appear on the market to define the modern homes of the future. Also, people often want to save money at given opportunity, and reducing the daily home energy consumption is a way to accomplish that.To be able to regulate the temperature of the home with a SmartPhone is currently technically possible, but it’s still not fully established in the housing market. As most people leave their homes for several hours a day during the average week a constant heating level is unnecessary. Because of this it could be interesting to investigate the potential market interest as well as the profitability of adding mobile control as a complement to the ordinary regulation of heating in a building.In order to conduct this study, interviews of the public and a property owner were conducted to get an overview of the level of potential market interest. In order to investigate the profitability of adding the mobile controlled system, a hypothetical cash flow calculation was made. After the interviews were completed, it was noted that there was a clear interest in using this kind of mobile controlling in the market. From the cash flow calculation it could also be seen that in the long term it is likely to be economically profitable for a property owner to invest in this system as well. The profitability, however, depends on a number of factors, including human behavioral patterns and building technology.
Zsiga, Fritz, and Agneta Myhrman. "Certifiering av smarta byggnader : Vad påverkar viljan att investera i en ny smartcertifiering?" Thesis, KTH, Fastigheter och byggande, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298351.
Full textSustainability and climate issues have been a hot topic for a longer period of time. Environmental certification of buildings has come to be a tool within the construction and real estate sector to work with sustainable development by making the use of resources within the sector more effective and by reducing its impact on the climate. There has been a rising trend in environmentally certifying buildings for the past couple of years. It is not impossible that investors will demand that buildings should be certified in the future. In addition to the increased interest in environmental certifications an interest in certification of smart buildings has also arisen. For example, in February of 2017 the European Commission began to develop “Smart Readiness Indicator” which is intended to be used for rating how smart a building is. The purpose of this study is to identify factors that may affect the willingness to invest in a certification which focus on how “smart” a building is. A qualitative literature study and one semi-structured interview has been carried out to fulfill the purpose of this study. From the literature study it has emerged that smart buildings create similar values to those created by environmentally certified buildings, however smart buildings also create new opportunities for value creation. Through interviews it has also emerged that there is pressure from society and authorities that can provide incentives for smart buildings. The literature study and the information from the interviews is combined in the discussion section of this study to explain what makes a building smart and to describe what values arise for smart buildings. These values are the factors that can affect the willingness to invest in a certification which focus on the smartness of a building. The conclusion of this study is that the values that arise for smart building constitute factors that can affect the willingness to invest in a certification which focuses on the smartness of a building. The emerging values that smart buildings and environmentally certified buildings have in common will not weigh as heavily as the values that arise specifically for smart buildings. Pressure from society and authorities may also become a major factor in the choice to invest in a certification which focuses on how smart a building is.
Andersson, Joakim. "Evaluating Environmental Sensor Value Prediction using Machine Learning : Long Short-Term Memory Neural Networks for Smart Building Applications." Thesis, Mittuniversitetet, Institutionen för informationssystem och –teknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-42852.
Full textThe IoT is becoming an increasing producer of big data. Big data can be used to optimize operations, realizing this depends on being able to extract useful information from big data. With the use of neural networks and machine learning this can be achieved and can enable smart applications that use this information. This thesis focuses on answering the question how good are neural networks at predicting sensor values and is the predictions reliable and useful in a real-life application? Sensory boxes were used to gather data from rooms, and several neural networks based on LSTM were used to predict the future values of the sensors. The absolute mean error of the predictions along with the standard deviation was calculated. The time needed to produce a prediction was measured as an absolute mean values with standard deviation. The LSTM models were then evaluated based on their performance and prediction accuracy. The single-step model, which only predicts the next timestep was the most accurate. The models loose accuracy when they need to predict longer periods of time. The results shows that simple models can predict the sensory values with some accuracy, while they may not be useful in areas where exact climate control is needed the models can be applicable in work areas such as schools or offices.
Ko, Hsin-Ting. "Techno-economic analysis of demand flexibility from heat pumps for multi-family buildings in Sweden based on two case studies." Thesis, KTH, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-272472.
Full textSverige genomgår en energitransformation för att bli en fossilfri ekonomi som siktar på att ha en elproduktion från 100% förnybara resurser år 2040. Sverige har också ett nationellt mål att ha en fossilfri fordonsflotta till 2030. Den ökande andelen av intermittenta förnybara resurser bidrar till ökning av obalans mellan produktion och efterfråga av elektricitet. Efterfrågeflexibilitet ger en lösning på problemet med obalanser i energisystemet där prosumenter kan reglera sin energiförbrukning. Efterfrågeflexibilitet kan vara fördelaktigt för kraft- och nätstabilitet. Elektriska värmepumpar kan agera som en stor flexibel last samtidigt som fastighetens termiska tröghet fungerar som värmeenergilagring. I denna avhandling utförs en teknisk-ekonomisk analys av efterfrågeflexibilitet från värmepumpar för två bostadshus beläget i centrala Örebro med hjälp av energisimuleringar av fastigheten. Genom denna avhandling syftar författaren på att höja intelligensen av de befintliga fastigheterna genom att undersöka storleken av den termiska trögheten som finns tillgänglig med avseende på olika värmescenario, byggnadsmaterial, ventilationssystem, väderförhållanden och användarbeteenden. Två flerfamiljshus, Klockarängsvägen och Pärllöken, väljs för jämförelse med avseende på den termisk tröghet som bidrar mest till efterfrågeflexibiliteten. De två utvalda fastigheterna använder värmepumpar för värme och varmvatten. Båda fastigheterna faktureras enligt effektabonnemang, vilket gör effektutjämning mer lönsamt. I det kallaste scenariot, när omgivningstemperaturen är -20°C, faller Pärllökens inomhustemperatur från 21°C till 19,1°C och Klockarängsvägens inomhustemperatur sjunker till 16,6°C om värmetillförseln stängs av i en timme. Under det lägsta börvärdet för inomhustemperatur på 18°C visar Pärllöken en maximal effektförskjutningskapacitet på 25 kW och för Klockarängsvägen-byggnader 20 kW. Med hänsyn till fastighetens termiska tröghet är Pärllöken utan tvekan vinnaren på grund av betong som väggsmaterial, högre termisk massa, balanserad ventilation, värmeåtervinningssystem och högre energiklass på fönsterglasen. Ovanstående skäl gör att Pärllökens termiska tidskonstant är minst tre gånger längre innan temperaturen når det lägsta börvärdet på 18°C, jämfört med Klockarängsvägen. Detta ger att Pärllöken har en högre förskjutningskapacitet av värme på 75 kWh jämfört med Klockarängsvägens maximala förskjutningskapacitet på 20 kWh. I en ekonomisk analys, baserat på författarens framtagna energimodeller, beaktas två styrstrategier i Pärllöken. Den ekonomiska analysen fokuserar på vintersäsongen från oktober till mars. Alternativ 1 driver värmepumpen med partiell kapacitet enligt reglerbar effekt. Alternativ 2 stänger av värmepumpen helt. Under vintersäsongen sparar Pärllöken 1 646 SEK med Alternativ 1 och 2 273 SEK med Alternativ 2. Klockarängsvägen använder sig endast av Alternativ 1 för en ekonomisk analys, vilket resulterar i en kostnadsbesparing på 20 948 SEK. En förstudie med värmepump i kombination med andra förnybara tekniker så som solceller på Klockarängsvägen genomförs för att undersöka potentialen av energibesparing. Kombinationen ger dock inte en positiv effekt på grund av den låga solinstrålningen under vintertid.
Larsson, Mattias, Johan Sjögren, and Bruce Kisch. "Smarta byggnader - Hur smarta är de?" Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-23747.
Full textThe last few years intelligent buildings and building automation have been increasingly discussed. The environment, sustainability and energy efficiency are subjects that are frequently discussed. Intelligent buildings could be a means to achieve profitability and sustainability. This study will begin with a review of different definitions of what an intelligent building is and arrive at a decision on what definition to use. From there a comparative case study with an inductive reasoning will be implemented. The purpose of the study is to find out if there is a difference in reliability between an intelligent building and a non-intelligent building. How these differences present themselves and where they can be found. The conclusion results in a theory formulated as there is no difference in reliability between an intelligent and a non-intelligent building. The triangulation model will be used to analyze the collected data. Both quantitative and qualitative data will be analyzed by comparison. To find relevant data fault reports from both buildings will be processed and analyzed, beyond that semistructured interviews will be conducted with employees that work with the buildings every day. To be able to implement a meaningful and reproducible study the report contains explanations of concepts as reliability, RCM, RAMS and fault tolerance.
Ahlgren, Lukas, and Max Forsberg. "Certifiering av smarta byggnader : En studie om vad i smarta byggnader som går att certifiera med dagens certifieringssystem." Thesis, KTH, Fastigheter och byggande, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297764.
Full textDuring the last decade, many if not all building certification systems have been formed for the certification of environmental aspects only. The purpose of this study was therefore to examine to what extent environmental certifications take smart solutions into consideration and to see if there was room for a new certification system for smart buildings. Furthermore, the possible need for another certification system for smart buildings was evaluated. The study compared previous research in smart buildings and green buildings in relation with four existing certification systems. An interview was conducted to investigate the possible need for a certification system for smart buildings. The study found that it is possible to certify smart buildings today but primarily in an environmental aspect which leads to a loss of information about the buildings that never reach the market. Additionally, the study concluded that the challenge in smart certifications is to find appropriate measurements and how the implementation itself should be conducted.
Grönlund, Clara, and Astrid Gustafsson. "Autoregressiv analys på tidsseriedata från en kontorsbyggnad : Smarta byggnader i teori och praktik." Thesis, Uppsala universitet, Avdelningen för systemteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414154.
Full textElofsson, Fredrik. "Optimering av last och produktion i Gävles fjärrvärmenät : Reducering av effekttoppar via värmelagring i byggnader." Thesis, Högskolan i Gävle, Energisystem och byggnadsteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-29732.
Full textFjärrvärme är idag det vanligaste sättet att förse en bostad med värme och tappvarmvatten i Sverige. Fjärrvärmen är ofta en miljövänlig produkt som kan produceras av till exempel biobränsle- och avfallseldade kraftvärmeverk eller spillvärme från industrier. Vid tillfälligt högt effektbehov, effekttoppar, använder sig merparten av bolagen av dyrare produktionsenheter med större miljöpåverkan. Dyrare produktionsenheter bör undvikas i största möjliga mån och i detta syfte används metoden laststyrning. Vid en effekttopp kan värmetillförseln till byggnader sänkas temporärt för att återföras några timmar senare när effektbehovet är lägre. Tack vare värmetrögheten i byggnaderna bör inomhustemperaturen inte sjunka inom tidsramen för laststyrning. Statistik från Gävles fjärrvärmanvändning på timbasis under 2018 har analyserats för att identifiera när och varför effekttoppar sker. Effekttoppar i hela fjärrvärmenätet har visat sig svåra att identifiera. På lokal nivå har däremot tydliga mönster för effekttoppar framkommit. Dessa effekttoppar beror till största del av tappvarmvattenanvändning men även förändringar i utomhustemperaturen. För att se hur produktion och last kunde skiljt sig från det verkliga utfallet tillämpades laststyrning för Gävles fjärrvärmeproduktion 2018. Laststyrningen beräknades manuellt genom att den dyraste produktionsenheten identifierades på timbasis. Om en billigare produktionsenhet hade potential att leverera högre effekt nästkommande timmar försköts produktionen. Därefter upprepades processen för varje timme under 2018. Efter utförd laststyrning för Gävles fjärrvärmenät hade ca 1 457 MWh förskjutits till en billigare produktionsenhet. Det gav en ekonomisk besparing på 1,0 % av Gävles totala produktionskostnad. Den miljömässiga besparingen visade på en sänkning från 6,1 till 5,9 [g CO2ekv /kWh] sammanlagt 197 ton CO2ekv. På samma sätt utfördes en laststyrning för ett scenario där Gävle och Sandvikens fjärrvärmenät sammankopplats. Vinsten för en laststyrning med Sandviken blev betydligt större med en minskad produktionskostnaden på 3,6 %. Den miljömässiga påverkan sjönk från 8,4 till 7,8 g CO2ekv /kWh sammanlagt 575 ton CO2ekv. För en framtida effektiv laststyrning bör byggnader delas in i olika klasser beroende på byggnadens tidskonstant. Användarmönster för hela fjärrvärmenätet har visat sig svårt att identifiera. Artificiell intelligens kan vara ett alternativ i framtiden för att prognostisera effektuttaget
Wiphagen, Benjamin, and Lohan Sergiu Farcas. "Digitalisering av branscher kopplade till fastighetsförvaltning – En kartläggning." Thesis, KTH, Fastigheter och byggande, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297761.
Full textThe real estate and construction industry is typically viewed as the more reluctant to change, at least when one is talking about digitalization. Why is this so? When discussions on the highest political level are made regarding Swedens’ digitalization strategy, saying we are aiming at being the best in the world at utilizing the benefits of digitization, it is easy to assume that digitalization as a phenomenon is here to stay. When a smart building is being planned, as well as built, making facility management more effective plays a big part. How effective it is, is very easily correlated to how far industry actors have come in their own digitalization. That is, how far have actors in industries linked or associated with facility management come regarding their own digitalization - which is what this essay intends to answer. The conclusion that can be drawn from the survey results is that there is a connection between how far actors, that in some way are working property management, have come in their digitalisation, and how this streamlines the work with management. In addition, readers are given an overview of how far certain industries have come in their work with digitalization based on the respondents' answers to the questionnaire that was sent out.
Chahrstan, Tony, and Truc Axel Kristola. "Det digitaliserade boendet : Möjligheter och utmaningar för byggherrar och bostadsutvecklare." Thesis, KTH, Fastigheter och byggande, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230995.
Full textThe rapid progress of digitalisation has left clear traces on whichever industry it has encountered. It can streamline already existing processes within a company, as well as it has the ability to open up opportunities for new companies with innovative business models to rapidly compete with well-established firms. In the real estate industry the impact of e-commerce on firms within the trade sector and coworking companies’ impressive foothold in the office market are among the most perceptible effects. However, fewer changes have been noted so far in the residential sector, and nor has the sector received as much attention in academic- as well as non-academic literature. The purpose of this essay is thus to highlight the opportunities and the challenges that affected actors are facing. Furthermore, this paper will investigate whether developers and owners of residential real estate assets are facing different conditions and/or have altered targets when working on developing the housing of tomorrow. The study is based on qualitative interviews involving ten actors active in the residential market. Among the interviewees are four municipal residential owners, four private residential owners and two developers. The result of this study clearly shows differences when it comes to how the municipal and the private actors consider the opportunity to create new businesses by offering their customers services as complements to the home. The municipal companies choose to stick to their core business while the private ones are clearly determined to offer service solutions that are linked to the home. Furthermore, the interviews show that developers focus more on developing digitalised service solutions that are attractive to the customers, while the owners, in addition to these solutions, also have a strong desire to develop solutions that can streamline the operations and the management of the properties. In conclusion, it can be seen that the biggest challenge that all actors within the industry will face is to be able to properly synchronize all components in the property with each other on a common and open platform. Unfortunately, it appears as quite clear that the conceptual smart real estate, which is described in idealistic terms in various reports, is still just a looming utopia.
Books on the topic "Smart byggnad"
Bergenblad, Harry. Rumlaborg: Länscentrum i norra Småland under medeltiden : en historia byggd på studier av urkunder smat på fynd från de arkeologiska utgrävningarna under 1930-talet. [Huskvarna]: Huskvarna hembygdsförening, 1995.
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