Thesis (M. of Environmental Science)--Miami University, Institute of Environmental Sciences, 2005. / Title from first page of PDF document. Document formatted into pages; contains [1], iii, 66 p. : ill. Includes bibliographical references.

Submitted by Rafael Santana (rafael.silvasantana@ufpe.br) on 2017-07-12T17:40:35Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Tese_Gutenberg da Silva Pereira_1.pdf: 6410667 bytes, checksum: ddf1e84a9a1b8bcce71836f13e8707fa (MD5) / Made available in DSpace on 2017-07-12T17:40:35Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Tese_Gutenberg da Silva Pereira_1.pdf: 6410667 bytes, checksum: ddf1e84a9a1b8bcce71836f13e8707fa (MD5) Previous issue date: 2016-02-22 / Com a atual escassez de energia, alta demanda e aumento do custo da energia elétrica, verifica-se que uma questão importante é a melhoria da eficiência dos sistemas de climatização dentro de um padrão de eficiência certificado possibilita-se, assim, para uma comparação real de qual é a melhor opção de layout e operação dos sistemas, já que os sistemas de climatização são responsáveis por uma alta parcela do consumo energético. O presente trabalho se propõe a comparar dois sistemas de refrigeração diferentes, usando chiller de compressão de vapor, para a climatização de ambientes. Foram propostas diferentes modalidades para a comparação em operações isoladas e ações combinadas. Essas operações são avaliadas nos conceitos de edifícios verdes. Foi desenvolvido um modelo matemático baseado nos princípios de conservação de massa e energia, complementado por várias funções, de modo a determinar as propriedades termofísicas e eficiências dos compressores. O modelo avalia a influência dos parâmetros operacionais principais do sistema de refrigeração a água gelada operando em três configurações diferentes. As equações do modelo foram resolvidas pelo programa EES (Engineering Equation Solver). Os resultados mostraram que o sistema com compressão diferenciada apresenta COP igual ao do sistema com chiller parafuso na faixa de 0 a 300 TRs, e um COP superior em média de 9% na faixa de 400 a 800 TRs. / With the current energy shortages, high demand and rising cost of electricity, it turns out that an important issue is the improvement of the air conditioning efficiency within a standard of efficiency certificate for a real comparison of what is the better layout option and operation of systems, as the HVAC systems account for a high share of energy consumption. This study aims to compare two different cooling systems using vapor compression chiller for air conditioning environments. They were different proposals modalities for comparison in isolated and combined action operations. These transactions are valued on the concepts of green buildings. A mathematical model was developed based on the principles of conservation of mass and energy, supplemented with various functions in order to determine the thermophysical properties and efficiencies of the compressors. The model evaluates the influence of the main operating parameters of the cold water cooling system operating in three different configurations. The model equations were solved by EES program (Engineering Equation Solver). The results showed that the system presents differentiated compression COP equal to the screw chiller systems in the range from 0 to 300 RTs and a higher COP (average of 9%) in the range of 400 to 800 TR.

Climate conditions nowadays are looking critical where the construction and property sector is a major contributing factor. The construction industry stands for one third of Sweden’s total energy use, which has led to different environmental goals and energy requirements that the industry needed to adapt to reduce environmental emissions. In association with this has durability and environmental certifications become one identity marker for companies that strives to make a difference and for users who choose to support them. Growing demand and increased environmental awareness have characterized the construction industry. The most popular environmental certifications on the Swedish market today is: BREEAM, LEED, GreenBuilding and Miljöbyggnad. BREEAM and LEED are the most recognized systems internationally and considers both the building and and the surrounding area. GreenBuilding focuses only on the buildings energy consumption and how to reduce it. Miljöbyggnad is the commonly used system in Sweden and focuses on the building itself.  Miljöbyggnad is a Swedish certification system that is handled and developed by Sweden Green Building Council (SGBC) since 2011 and focuses on the building itself. The building is assessed by 15 different indicators within three segments: energy, indoor environment and material. This Work is limited to examine only Miljöbyggnad four indicators: energy consumption, solar heat load, heating needs and ventilation regarding an ongoing housing unit in cooperation with SWENCN AB.  The aim of this work was to calculate monthly energy consumption for the reference building. Furthermore, was the aim to rate the four indicators according to Miljöbyggnad grade system: bronze, silver and gold and finally see what happens if the household electricity is neglected and can energy efficiency regarding household electricity paradoxically result in that the building appears to be inferior.  The result of this thesis shows that the buildings active heating season is five out of twelve months. Solar thermal load is calculated to a value of 66 W/m2 floor area and because of that did not meet up the criteria for bronze. Heating needs meets up to the criteria for bronze with a value of 21,5 W/m2 , Aom.  and the buildings energy use for gold with a value of 49 kWh/m2, (Atemp), year. Household electricity contributes to increased passive heating and counts because of that as “free energy” which decreases the need for active heating, the building is considered as better. If the household electricity instead is neglected it will increase the heating demand and the building appears to be inferior. The conclusions of this work indicate that the big uncertainty lies in judging how people's habits affects the energy use. The building is currently under production which has led to that static average numbers have been used, and because of that margin of error can in some cases become big. As a result of that should any changes and adjustments updates when the building is put in use. It's easier and more effective to reach gold in the planning stage when there are opportunities to choose building components with lower U-value.

Buildings account for 39 per cent of the global greenhouse gas emissions, therefore the way buildings are constructed and utilized plays an important role in the transition to a sustainable future. Environmental Certification Systems (ECS) functions as a catalysator for sustainable solutions within the building industry and is seen as a hygiene factor for property owners today. The market offers numerous environmental certifications for buildings to choose from, and Swedish property owners are frequently users of them. However, most of the environmental certification systems does not cover the social aspects of sustainability that directly include human health and wellbeing in the building. This has led to the creation of the sustainability certification WELL Building Standard – a global certification system for buildings that exclusively addresses the users in the building, in terms of health and wellbeing. There are currently 298 WELL-certified projects around the world, and in Sweden there are six property companies that have registered different project for the certification. Due to the Swedish property owners’ relatively modest efforts regarding the social sustainability work, this paper explores what the drivers is for these six companies into working with a WELL-certification. By exploring that, this study aims to contribute to the understanding on what can drive the willingness of corporations to invest in sustainability certifications in general, and in what ways a WELL-certification can fill a potential gap in the Swedish property market. The findings reveal that a WELL-certification has a unique selling point due to its human-centred approach. It can be a beneficial tool, both for property companies, who may attract new clients, as well as for the tenants that are renting their space, in terms of increasing their own employer brand and corporate reputation. According to Herzberg’s two-factor theory, this human centred approach can be used as motivation factor for the property owners, rather than a hygiene factor. The findings also reveal that there is a need in society for addressing health issues, due to the increasing numbers of sick leave in Sweden the past years. Furthermore, the study reveals that there have been a “competence gap” in the built environment for addressing this kind of issues and that a WELL-certification is therefore helpful in addressing areas of the built environment that the property owners never have thought of before.

The present thesis investigates the demands for follow-ups determined within the largest four environmental certification systems in Sweden, BREEAM-SE, LEED, Miljöbyggnad, and GreenBuilding. This study was narrowed down to only include environmental certifications of newly developed commercial constructions. Furthermore, the different problems and risks that can occur alongside follow-up demands within an environmental certification will be discussed as well as the positive effects of such a follow-up. There has been a significant increase in the classification of constructions in the last decade. Today, the majority of large construction projects undergo an environmental certification. The certification of newly developed buildings start with the planning documents and has a large impact on how buildings are constructed, built, and maintained. The certification process is often intricate and involves many different parties such as engineers, architects, and constructions workers. Demands for follow-ups will vary in both layout and scope depending on the environmental certification system after it has been commissioned. Controlling and ensuring that the project plans have been met after commissioning allow buildings to, at a greater extent, live up to expectations and classification grades. Thereby, the risk of having a misleading certification grade even in the management phase is reduced. A supervised and planned commissioning as well as demands on a new certification of the building, which confirms an acquired grade, strengthens the recognition of the building on the market. / Denna kandidatuppsats behandlar de uppföljningskrav som ställs inom Sveriges fyra största miljöcertifieringssystem; BREEAM-SE, LEED, Miljöbyggnad och GreenBuilding. Rapporten har avgränsats till miljöcertifiering av kommersiella byggnader vid nyproduktion. Vidare behandlas olika problem och risker som kan uppstå i samband med uppföljningskrav av en miljöcertifiering, samt de positiva effekter en uppföljning bidrar till. Det har skett en betydande ökning av klassningsarbetet av byggnader det senaste decenniet, majoriteten av stora byggprojekt genomgår idag en miljöcertifiering. Certifiering av byggnader i nyproduktion utgår från projekteringshandlingar och har stor inverkan på hur byggnader konstrueras, byggs och underhålls. Certifieringsprocessen är ofta invecklad och involverar många parter såsom ingenjörer, arkitekter och byggare. Uppföljningskraven som respektive miljöcertifieringssystem ställer inom sina certifikat efter idrifttagandet varierar i både utformning och omfattning. Kontroll och säkerställning av att projekteringsvärden i drift gör att byggnader i större utsträckning lever upp till förväntningar och erhållet certifieringsbetyg. Därigenom minskar dessutom risken för att certifieringsbetyg, som kvarstår även i förvaltningsskedet, ska bli missvisande. Ett övervakat och planerat idrifttagande, samt krav på en ny certifiering av byggnader i drift som bekräftar ett erhållet betyg, stärker byggnaders erkännande på marknaden.

Bewertung und Untersuchung einer Nachhaltigkeitszertifizierung im Bauwesen

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Under det senaste decenniet har det skett en stor utveckling av strategier och trender gällandemiljöcertifieringar av kommersiella fastigheter. Efter att SGBC (Swedish Green Building Council)etablerades 2009 har företag valt att anpassa sin verksamhet, strategier och miljöpolicy därefter. Vissaföretag ligger långt i framkant när det gäller att investera i miljöcertifierade fastigheter varpå studienssyfte är att undersöka hur bolagen lyckats anpassa sin verksamhet på en marknad i rörelse. Det villsäga hur företagen förhåller sina investeringar av miljöcertifieringar till sina policys gällande hållbarutveckling. Metoden för studien har varit att undersöka årsredovisningar och hållbarhetsrapporter för utvaldafastighetsbolag under det senaste decenniet. Även företagens hemsidor har fungerat som underlag vidinsamling av information för att kunna kartlägga företagens mål, strategier och viktiga nyckeltal. Frånden insamlade data har man kunnat granska utvecklingen av trender och strategier för de undersöktafastighetsbolagen där man har sett en ändring allt eftersom rådande marknadsförutsättningar ochefterfrågan ändrats. Vissa svårigheter har uppstått vad gäller transparensen i tillhörande årsredovisningar som har visskorrelation till huruvida ett bolag väljer att överkommunicera arbetet med miljöcertifieringar ochhållbarhet i sin helhet. Detta kan antas bero på den hållbarhetstrend som fått genomslag under detsenaste decenniet där ett fastighetsbolag, för att vara tillräckligt konkurrenskraftig inom främstkontorssegmentet, har fått påvisa ett betydligt större arbete kring just miljöfrågor och hållbarhet än ettbolag mer inriktad på industriella lokaler lokaliserat till mindre städer. / Over the past decade, there has been a major development of strategies and trends regardingenvironmental certifications of commercial properties. Since the establishment of the Swedish GreenBuilding Council (SGBC) in 2009, companies have chosen to adapt their activities, strategies andenvironmental policies accordingly. Some companies are at the forefront when it comes to investing inenvironmentally certified properties, and the purpose of the study is to investigate how the companiesmanaged to adapt their operations at a market in motion. That is, how companies relate theirinvestments in environmental certifications to their sustainable development policies. The study has included examining annual reports and sustainability statements for selected companiesover the past decade. The companies' websites have also served as a basis for collecting information inorder to be able to map out companies' goals, strategies and key figures. From the collected data it hasbeen possible to examine the development of trends and strategies for the investigated real estatecompanies where a change has been seen as current market conditions and demand have changed. Some difficulties have arisen with regard to the transparency of the associated annual reports, whichhave some correlation to whether a company chooses to overcommunicate the work withenvironmental certifications and sustainability in its entirety. This can be assumed to be due to thesustainability trend that has had an impact over the last decade where a real estate company, in orderto be sufficiently competitive in the office segment, has had to demonstrate much greater work onenvironmental issues and sustainability than a company more focused on industrial premises locatedin smaller cities.

Fastighetsmarknaden har visat på ett växande behov av ett hjälpmedel för fastighetsvärderare som underlättar implementeringen av byggnaders gröna egenskaper i värderingsprocessen, samt för att investerare ska kunna se specifika gröna egenskapers effekt på fastighetsvärdet. Användningen av ett flertal olika miljöklassningssystem på marknaden skapar svårigheter vid jämförelse. RICS har tagit fram ett utkast på en hållbarhetschecklista för att komplettera värderingsutlåtandet med en utökad beskrivning av fastigheterna med en systematisk redovisning av egenskaper relevanta ur ett hållbarhetsperspektiv. Dess syfte är att tydliggöra skillnader och öka utbudet av tillgänglig transaktionsdata med en påföljande ökad transparens på fastighetsmarknaden. Studien syftar till att undersöka hur en hållbarhetschecklista kan tas fram, se ut och fungera, samt om den kan implementeras i ett projekt för en samhällsfastighet. Genom att använda mig av utkastet från RICS och intervjua aktörer på fastighetsmarknaden har en lista tagits fram som jämförts med miljöklassningssystemen och implementerats på ett specifikt projekt. Utfallet har sedan analyserats och legat till grund för de slutsatser som dragits. Resultatet av studien visar att den lista som utgår från RICS ”Sustainability Checklist” med relevanta hållbarhetsaspekter kan implementeras även på samhällsfastigheter då dessa innehar liknande egenskaper som de kommersiella fastigheterna, med vissa skillnader, som övergripande beror av: budgetrestriktioner, lokala förhållanden samt regleringar från kommunen och övriga parter. Även val av miljöklassningssystem har en viss påverkan på utfallet i fallstudien, då ett nära samband finns mellan parametrarna i hållbarhetschecklistan och miljöcertifieringssystemen, och där de kommersiella fastighetsutvecklarna i högre grad har valt att certifiera sina byggnader med de internationella systemen som är mer komplexa och innehar ett högre antal parametrar. Emellertid bygger en framgångsrik implementering av listan på att värderarens roll ändras till mer informerande, vilket också ställer krav på kunskapsnivå och utbudet av utbildning och vägledning för professionella värderare, en uppgift som ska upptas av professionella värderingsorgan. Slutligen fastställs att listan bör bearbetas ytterligare, med utveckling och förtydligande av vissa aspekter för att underlätta insamling av information samt underlätta för värderare att i praktiken kunna använda den som ett komplement i värderingsarbetet. / The real estate market has shown an increased demand among real estate appraisers for a tool to facilitate the implementation of green building features into the valuation process, and for investors to discern a specific green feature’s impact upon value. The wide range of green building rating systems used on the real estate market today causes difficulties in comparison. To supplement the valuation report with an extended description of the properties including a systematic presentation of relevant features from a sustainability perspective, RICS (2012) has formed a draft of a ”sustainability checklist”, which purpose is to highlight differences, increase the supply of information and enhance transparency in the property market. The study aims to investigate the development, design and function of a sustainability checklist, and whether it can be implemented on public properties. A list was created based on the draft from RICS ”Sustainability Checklist”, and interviewed players in the real estate market, which were implemented on a specific project consisting of a public building. The result of the study was analysed and has formed the basis of the conclusions drawn. The result of the study conducted within this thesis shows that the list based on RICS ”Sustainability Checklist” with sustainability aspects included can be implemented also on public buildings, as these buildings possess similar features as the commercial buildings. Some main differences can be seen, overall resulting from: budget constraints, local conditions and regulations from the municipality and other parties. Also, the choice of a certain green building rating system influence the effect on the outcome, whereas a close relationship can be find between certain aspects within the sustainability checklist and green building rating systems, and the commercial real estate developers increasingly chose to certify their buildings with the international systems, which are more complex and contain a higher number of aspects. However, in order to achieve a successful implementation of the list among appraisers within the real estate market, the role of the valuer must change to more informative, which also make demands on the level of knowledge and the provision of training and guidance for professional appraisers, a task to be undertaken by professional valuators. Furthermore, it is also established within this study that the list should be further processed and modified in order to facilitate the gathering of information and to simplify for the appraiser to use it as a supplement within the valuation process.

Exploratory research into a fresh concept, building integrated aquaculture, has found new information on the topic. Motives indicating building integrated aquaculture is important for sustainable development were identified. A review of the literature found relatively little in the way of experiments, aquaculture operations, and case studies which documented or demonstrated a deep understanding of the interactions between building and aquaculture systems. A simple experiment was conducted observing thermal energy and moisture interactions in simulated aquaculture facilities, some with tank covers and insulation. Two different retrofit programs were developed in a case study of building integrated aquaculture for an existing structure on the campus of the University of Massachusetts.