Energy Innovation
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Recent years have seen a rapid growth of additive manufacturing methods for concrete construction. Potential advantages include reduced material use and cost, reduced labor, mass customization and CO2 footprint reduction. None of these methods, however, has yet been able to produce additively manufactured concrete with material properties suitable for structural applications, i.e. ductility and (flexural) tensile strength. In order to make additive manufacturing viable as a production method for structural concrete, a quality leap had to be made. In the project ‘3D Concrete Printing for...
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Spool has published previously four issues dedicated to projects, developed in a high-risk innovation programme: the so-called the 4TU.BOUW lighthouse projects. Initially, the main topic of this programme was Energy-Innovation, hence the name of this “thread”. This issue of Spool presents the last batch of Lighthouse projects as the programme came to a close.
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This project is focused on providing movable-temporary sustainable housing at derelict locations in cities, for young people / graduates / singles / expats / professionals in the European market. The goal is to act as the missing link between innovative small and medium enterprises in the sustainability and energy efficient sector (SME’s) and their target audiences i.e. residences. It is a new housing concept that provides residential solutions and living lab facilities for innovative energy technologies. It is a solid quality solution at affordable rental price, at central locations...
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The need for innovative and cost effective approaches for infrastructure maintenance has never been more crucial. In fact, this has been a popular topic in technical reports like the McGraw Hill Construction, the Dutch Cobouw construction magazine and the new multidisciplinary journal “Infrastructure Asset Management” by the Institution of Civil Engineers. The financial status of Industrial Parks (IP) and Business Parks (BP) in the Netherlands, as well as in the rest of the world, has been greatly influenced by the 2007-2008 financial crisis. As a consequence, several IPs and BPs have...
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By designing materials with variable stiffness, structures can adapt to various functional requirements. This paper presents variable stiffness explored in two case studies relying on an architected material approach that involved gradient pattern differentiation and freeform printing using thermoplastic polymers (TPE).
The differentiated cell pattern had gradients from high to low density of cells, which facilitate variable stiffness. Numerical and experimental studies showed the potential for application of materials with variable stiffness in adaptive structures.
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The term “impinging jet” refers to a high-velocity fluid stream that is ejected from a nozzle, a narrow opening or an orifice, and which impinges on a surface. As applied to the built environment, impinging jets are used in air curtains to separate two environments subjected to different environmental conditions with the purpose of improving thermal comfort, air quality, energy efficiency and fire protection in buildings. The design and application of state-of-the-art air curtains requires detailed knowledge of the relationship between the separation efficiency of air curtains—their main...
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The project aims to design, produce and realise a small, but fully bio-based composite pedestrian bridge at the campus of TU/e. So far, few bio-based building projects have been realised world-wide, but they focussed either on non-structural elements or they partially used building materials based on fossil materials.
The application of bio-based materials in the built environment is an extremely promising approach towards a more circular economy and a sustainable environment, which is one of the National Science Agenda’s themes: “Energy and raw materials: Circular economy”....
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CAST Formwork Systems (CFS) is a concrete formwork system based on CNC milling technology. It enables self-construction in informal areas to build up safe, incremental housing up to four storeys high. Ordinary formwork systems are complex to use, often too expensive for the low- to mid-low income group and only suited to one shape of building plot. The CFS-system is not only cheaper, it can be customized to all shapes of building-plots and is both safe and easier in use.
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Convective Concrete is about a research-driven design process of an innovative thermal mass concept. The goal is to improve building energy efficiency and comfort levels by addressing some of the shortcomings of conventional building slabs with high thermal storage capacity. Such heavyweight constructions tend to have a slow response time and do not make use of the available thermal mass effectively. Convective Concrete explores new ways of using thermal mass in buildings more intelligently. To accomplish this ondemand charging of thermal mass, a network of ducts and fans is embedded in...
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The water tower of Schimmert was built in 1926 to cover the needs of water of Schimmert and the surrounding areas as well. This imposing 38 meters high tower dwarfs any nearby buildings, providing a 360° view of the surrounding area and deserves its pseudonym de Reus van Schimmert (the Giant of Schimmert). In the attempt to find a sustainable business model for the iconic building the concept of installing a data center in its core is investigated. The waste heat from the servers will be transferred to the reservoir on the top and from there used to power a district heating system in...
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It is no secret that there have been some great advances in the realm of concrete additive manufacturing. However, one of the major drawbacks of this fabrication technique is that the elements must be self-supporting during printing. While most other additive manufacturing materials can overcome this by using a secondary printed support structure, alternative strategies have to be developed for materials such as concrete.
This 4TU project explores the possibilities of combining concrete additive manufacturing with a temporary support surface. By printing on a free-form surface,...
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The DoubleFace project aims at developing a new product that passively improves thermal comfort of indoor and semi-indoor spaces by means of lightweight materials for latent heat storage, while simultaneously allowing daylight to pass through as much as possible. Specifically, the project aims at designing and prototyping an adjustable translucent modular system featuring thermal insulation and thermal absorption in a calibrated manner, which is adjustable according to different heat loads during summer- and wintertime. The output consists of a proof of concept, a series of performance...
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The project set out to proof that a conventional optical fibre lighting system for highlighting the structure of a façade can be operated more energy-efficiently through the substitution of the projector using a metal halide reflector lamp by a laser. This is investigated by looking into the photometric assessment of such systems as well as the electric power draw during operation. In preparation for a potential exterior demonstration installation, an additional focal point of the research was the design and testing of a weatherproof case that provides protection to the laser and the...
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Excavation work takes place almost continually in most cities around the Western hemisphere. Many cities are already full of infrastructures, buried networks, and street furniture, so excavation work is not without any thread to the operator and surrounding environment. Small construction sites, for example, are often constrained by operating infrastructure on surface level and underground. Although different agencies and network owners have information about the location of the objects that put excavation work at risk, this information is not centralized. Different organizations manage...
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The project is an inter-disciplinary initiative for the ‘designed engineering’ of heterogeneous fibres with variable material behaviors to create real-time responsive interior environments (furniture systems). These smart furniture systems will embody properties of real-time adaptive temperature control, real-time structural adaptability and real-time physiological support of the human body. These properties shall be fully self-regulated (devoid of external power sources) via engineering multi-layered fibre compositions, which can sense the forces exerted by the human body and...
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The sustainability of infrastructure projects is becoming increasingly important issue in engineering practice. This means that in the future the construction materials will be selected on the basis of the contribution they can make to reach sustainability requirements. Geopolymers are materials based on by-products from industries. By using geopolymer concrete technology it is possible to reduce our waste and to produce concrete in the environmental-friendly way. An 80% or greater reduction of greenhouse gases compared with Ordinary Portland Cement (OPC) can be achieved through...
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Renovation of existing buildings is known as an essential stage in reduction of the energy loss. Considerable part of renovation process depends on geometric reconstruction of building based on semantic parameters. Following many research projects which were focused on parameterizing the energy usage, various energy modelling methods were developed during the last decade. On the other hand, by developing accurate measuring tools such as laser scanners, the interests of having accurate 3D building models are rapidly growing. But the automation of 3D building generation from laser point...
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In developed countries, the share of the elderly (65+) is growing quickly. In the Netherlands it might reach 25 to 30% of the population by 2040 (see Figure 1). We design best living concepts for the elderly, based on a research in their residential preferences. Our novel methodology combines insights from social sciences and architecture. A stated choice experiment retrieves the willingness-to-pay of the elderly for a set of relevant attributes of the dwelling, building and location. The attributes with the highest valuation are used as an input for a flexible architectural...
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A good school environment is paramount to the performance and health of the pupils and teachers. However, the quality of school buildings in the Netherlands is in general not so good, with 80% of them not complying with good practices for the indoor environment, while having high energy costs. When tackling these issues, School Boards around the country have two options: building new facilities, or upgrading the existing ones. Although they usually prefer new buildings, municipalities around the country are promoting the alternative. This presents opportunities for the sustainable...
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Het is wenselijk dat gebouwen beschikken over voldoende en de juiste mogelijkheden om te ventileren. Buiten de benodigde ventilatievoorzieningen is het echter de bedoeling een gebouw zo luchtdicht mogelijk te maken ten einde comfortklachten en onnodig energiegebruik te voorkomen. In het Bouwbesluit zijn eisen met betrekking tot de luchtdoorlatendheid – het tegenovergestelde van luchtdichtheid – opgenomen. Met betrekking tot een heel gebouw wordt in Art. 5.4 lid 1 het volgende geëist: De volgens NEN 2686 bepaalde luchtvolumestroom van het totaal aan verblijfsgebieden, toiletruimten en...
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Bedrijven gaan tegenwoordig vooral lineair om met hun materialen. Grondstoffen komen binnen, worden verwerkt tot producten en hun afval wordt afgevoerd. Binnen één bedrijf ziet dit er logisch uit, maar in een systeem van meerdere bedrijven is te zien dat dit efficiënter kan. Als het afval van een bedrijf gebruikt zou worden als grondstof door een ander bedrijf, ontstaat er industriële symbiose. Daardoor worden er minder grondstoffen verbruikt en worden bruikbare restmaterialen niet verspild.
Om bedrijven te helpen bij het zoeken naar partners voor zulke uitwisselingen, is de...
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The Kine-Mould is a development that makes it easier to manufacture building elements with complex geometry. Since June 2014 the team has been working on a range of solutions and prototypes. Various building materials have been investigated such as concrete, glass and plastic composites. In a joint effort of TU Delft and TU Eindhoven the following prototypes were designed and built:
- One for thermoplastic polymers;
- One for concrete elements;
- One for glass elements;
- Several for inflatable mould surfaces.
Students carried out a...
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Conventional solar energy collection technologies have a lot of limitations with respect to their applicability in the urban environment. The PV cells of the buildings need to be oriented towards the South at a specific angle causing restrictions on urban planning. Moreover, the aesthetics of PV cells are not well suited for building design, creating a generally dull and industrial look in urban environment.
The 3TU Lighthouse Leafroof project focuses on creating a roof design, inspired by the natural shape of leaves. By incorporating the Luminescent Solar Concentrator (LSC)...
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This project visualizes the history and current presence of oil in our everyday surroundings in order to facilitate long-term urban sustainability and energy innovation. Designers and citizens around the world want buildings and cities to be more sustainable and ecological.
While their initiatives to reduce energy use are relevant, they often concentrate on individual structures rather than larger global flows, and on technological approaches disconnected from history, society, and culture. They fail to build a new ecological mind-set, a widespread popular culture of...
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Luminescent solar concentrator (LSC) is a device that has luminescent molecules embedding or topping polymeric or glass waveguide to generate electricity from sunlight with a photovoltaic cell attachment. LSCs can be employed both in small and large scale projects, independent on the direction or angle of the surface with respect to the sun, promising more freedom for integration in urban environments compared to the traditional PV systems. The aim of the SEB&C PDEng project is to investigate the applicability of this innovative technology in the built environment and to bridge the...
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