Searched for: subject%3A%22energy%255C%252Befficiency%22
(1 - 20 of 113)

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Sunikka, M.M. (author)
journal article 2006
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Wu, W. (author), Sanduleanu, M.A.T. (author), Li, X. (author), Long, J.R. (author)
journal article 2008
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Verdaasdonk, B.W. (author), Koopman, H.F.J.M. (author), Van der Helm, F.C.T. (author)
Like human walking, passive dynamic walking—i.e. walking down a slope with no actuation except gravity—is energy efficient by exploiting the natural dynamics. In the animal world, neural oscillators termed central pattern generators (CPGs) provide the basic rhythm for muscular activity in locomotion. We present a CPG model, which automatically...
journal article 2009
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Van Hooff, T. (author), Blocken, B. (author), Aanen, L. (author), Bronsema, B. (author)
Wind tunnel experiments and Computational Fluid Dynamics (CFD) are used to analyse the flow conditions in a venturi-shaped roof, with focus on the underpressure in the narrowest roof section (contraction). This underpressure can be used to partly or completely drive the natural ventilation of the building zones. The wind tunnel experiments are...
journal article 2011
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Mlecnik, E. (author)
Europe expects the housing sector to evolve towards ‘nearly zero-energy’ dwellings. Meanwhile, general terms and research, marketing and legal definitions considering such dwellings have already been introduced. Appraisal of existing definitions is now needed for further policy development. This paper examines what nearly zero-energy terms can...
journal article 2012
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Riccardo, F. (author), Van Oel, C.J. (author), De Jong, P. (author)
Energy efficiency and architectural value of post-war residential buildings in Europeis poor. To deal with energy efficiency, decay and livability problems, improvements of building façades seem to be indicated especially when combined with tenants’ preferences for architectural aesthetics. But a valid way to assess multiple characteristics of...
journal article 2013
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Jiang, J. (author), Chang, Z.Y. (author), Pertijs, M.A.P. (author)
This paper presents an energy-efficient readout circuit for micro-machined resonant sensors. It operates by briefly exciting the sensor at a frequency close to its resonance frequency, after which resonance frequency and quality factor are determined from a single ring-down transient. The circuit employs an inverter-based trans-impedance...
journal article 2015
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Holck Sandberg, N. (author), Sartori, I. (author), Heidrich, O. (author), Dawson, R. (author), Dascalaki, E. (author), Dimitriou, S. (author), Vimm-r, T. (author), Filippidou, F. (author), Stegnar, G. (author), Sijanec Zavrl, M. (author), Brattebø, H. (author)
A dynamic building stock model is applied to simulate the development of dwelling stocks in 11 European countries, over half of all European dwellings, between 1900 and 2050. The model uses time series of population and number of persons per dwelling, as well as demolition and renovation probability functions that have been derived for each...
journal article 2016
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Read, S.A. (author), Lindhult, Erik (author), Mashayekhi, A. (author)
Our present economy is high-energy and demand-intensive, demand met through the use of high energy yield fossil fuels. Energy efficiency and renewable energy sources are proposed as the solution and named the ‘twin pillars’ of sustainable energy policy. Increasing energy efficiencies are expected to reduce energy demand and fossil fuel use and...
journal article 2016
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Campos Martins, G. (author), Serdijn, W.A. (author)
Some systems like RF energy harvesters have power transfer efficiency as one of the most important specifications. Therefore, the efficiency of the matching network, which affects the entire system’s efficiency, plays an important role. When the impedance transformation factor between the antenna and its load is high, the matching network...
journal article 2016
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Filippidou, F. (author), Nieboer, N.E.T. (author), Visscher, H.J. (author)
The existing housing stock plays a major role in meeting the energy efficiency targets set in EU member states such as the Netherlands. The non-profit housing sector in this country dominates the housing market as it represents 31% of the total housing stock. The focus of this paper is to examine the energy efficiency measures that are currently...
journal article 2016
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Romein, A. (author)
Now that it becomes obvious that disregarding the seriousness of climate change and the exhaustibility of fossil fuels would have severe and unpredictable impacts, improvement of the efficiency of urban energy consumption is of utmost importance. Hence, a rather diverse spectrum of policies to encourage this improvement has been put into...
journal article 2016
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Satyavada, Harish (author), Baldi, S. (author)
Energy efficiency in building heating, ventilating and air conditioning (HVAC) equipment requires the development of accurate models for testing HVAC control strategies and corresponding energy consumption. In order to make the HVAC control synthesis computationally affordable, such control-oriented models are typically a simplified version...
journal article 2016
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Raji, B. (author), Tenpierik, M.J. (author), van den Dobbelsteen, A.A.J.F. (author)
The building envelope is the interface between the interior of the building and the outdoor environment. A building's energy consumption to a large extent depends on certain envelope design elements. As a consequence, for achieving high levels of energy-saving in buildings, design measures with high impact should be firstly defined and then...
journal article 2016
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Raji, B. (author), Tenpierik, M.J. (author), van den Dobbelsteen, A.A.J.F. (author)
Tall buildings are being designed and built across a wide range of cities. A poorly designed tall building can tremendously increase the building’s appetite for energy. Therefore, this paper aims to determine the design strategies that help a high-rise office building to be more energy efficient. For this purpose, a comparative study on...
journal article 2016
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Bedir, M. (author), Kara, Emre C. (author)
In EU member states, the consumption of electricity per dwelling has remained more or less constant, although the consumption of large appliances has decreased considerably in the last 2 decades. This stabilization is caused by the increased ownership, usage and consumption levels of Information, Communication and Entertainment (ICE)...
journal article 2017
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Gana, J.A. (author), Hoppe, T. (author)
The adoption of energy efficient electrical appliances by households has a great potential to reduce electricity consumption in Nigeria. A well-formulated and implemented policy (mix) to spur adoption is said to be required to drive this process. This article presents an assessment of policies that aim to spur adoption among households, and the...
journal article 2017
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Filippidou, F. (author), Nieboer, N.E.T. (author), Visscher, H.J. (author)
The existing housing stock plays a major role in meeting the energy saving targets set in the Netherlands as well as in the EU. Existing buildings account for 38% of the final energy consumption in the European Union (EU), and they are responsible for 36% of the CO<sub>2</sub> emissions. Energy renovations in dwellings offer unique...
journal article 2017
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Alders, E.E. (author)
Calculation of various strategies for the heating of, and the prevention of overheating in, a Dutch standard dwelling that includes (automated) adaptive ventilation systems and solar shading to maintain indoor temperatures at acceptably comfortable temperatures informs this analysis of the costs, impacts and benefits of the use of related...
journal article 2017
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Raji, B. (author), Tenpierik, M.J. (author), van den Dobbelsteen, A.A.J.F. (author)
Decisions made at early stages of the design are of the utmost importance for the energy-efficiency of buildings. Wrong decisions and design failures related to a building’s general layout, shape, façade transparency or orientation can increase the operational energy tremendously. These failures can be avoided in advance through simple changes...
journal article 2017
Searched for: subject%3A%22energy%255C%252Befficiency%22
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