Renewable energy for passive house heating

Bădescu, Viorel; Sicre, Benoît

doi:10.1016/j.enbuild.2003.10.001

Cited by 73 publications

(26 citation statements)

References 1 publication

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“…Thus, the Passive House standard represents a reduction in heating requirements by up to a factor of 25 compared to typical existing buildings. More generally, a number of advanced houses have been built in various coldclimate countries around the world that use only 10-25% of the heating energy of houses built according to the local national building code (Badescu and Sicre 2003;Hamada et al 2003;Hastings 2004).…”

Section: Reducing Heating and Cooling Loadsmentioning

confidence: 99%

Reducing energy use in the buildings sector: measures, costs, and examples

Harvey

2009

Energy Efficiency

163

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This paper reviews the literature concerning the energy savings that can be achieved through optimized building shape and form, improved building envelopes, improved efficiencies of individual energyusing devices, alternative energy using systems in buildings, and through enlightened occupant behavior and operation of building systems. Cost information is also provided. Both new buildings and retrofits are discussed. Energy-relevant characteristics of the building envelope include window-to-wall ratios, insulation levels of the walls and roof, thermal resistance and solar heat gain coefficient of windows, degree of air tightness to prevent unwanted exchange of air between the inside and outside, and presence or absence of operable windows that connect to pathways for passive ventilation. Provision of a high-performance envelope is the single most important factor in the design of lowenergy buildings, not only because it reduces the heating and cooling loads that the mechanical system must satisfy but also because it permits alternative (and low-energy) systems for meeting the reduced loads. In many cases, equipment with significantly greater efficiency than is currently used is available. However, the savings available through better and alternative energy-using systems (such as alternative heating, ventilation, cooling, and lighting systems) are generally much larger than the savings that can be achieved by using more efficient devices (such as boilers, fans, chillers, and lamps). Because improved building envelopes and improved building systems reduce the need for mechanical heating and cooling equipment, buildings with dramatically lower energy use (50-75% savings) often entail no greater construction cost than conventional design while yielding significant annual energy-cost savings.

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Section: Reducing Heating and Cooling Loadsmentioning

confidence: 99%

Reducing energy use in the buildings sector: measures, costs, and examples

Harvey

2009

Energy Efficiency

163

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“…Finally, in the solar radiation, the influence of solar radiation in the tiled roof degradation, the development of radiance and luminance sky models and the calculation of the direct, diffuse and reflected incident solar radiation, were made. Kummert et al (2000), Hien and Istiadji (2003), Badescu and Sicre (2003a, b), Lukic (2003), Chou (2004), Igawa et al (2004), Manz and Frank (2005), Holck and Rosenfeld (2005), Flor et al (2005), Filippín et al (2005), Cheng et al (2005), Künzel et al (2005), Badescu (2005), Bourgeois (2005), Persson et al (2006), Badescu and Staicovici (2006), Filippín and Beascochea (2007), Badescu (2007), Larsen et al (2008), Omer (2008), Wang et al (2009), Chan et al (2010), and others, are some examples of these kinds of applications.…”

Section: Introductionmentioning

confidence: 95%

Numerical simulation of passive and active solar strategies in buildings with complex topology

Conceição

Lúcio²

2010

Build. Simul.

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In this paper a numerical software, that simulates the building thermal behaviour with complex topology in transient conditions, was developed and used in the study of kindergarten thermal response and the occupants' thermal comfort and air quality in Mediterranean conditions. In this numerical model a new building three-dimensional grid generation philosophy, closer to the reality, that considers the building and the surrounding buildings used in the long and short-wave calculus, the external and internal shading devices, the energy and mass balance integral equations philosophy generated by the building geometry, the equation system resolution done by the Runge-Kutta-Felberg with error control and the human thermal comfort level evaluated through human thermo-physiology, are developed.In the simulation, with a real occupation cycle, the compartments, the building opaque bodies, the building transparent bodies, and the external shading devices were considered. In passive strategies the kindergarten is equipped with multiple inclined aluminium shading devices placed above the transparent windows level and in front to the transparent door facing south, removable inclined tissue shading devices placed in front to the transparent windows facing east, and horizontal fabrics shading devices placed above the transparent panel levels facing south, south-west and west.In this study, made with natural and forced ventilation, the summer and winter conditions were used. In summer conditions, the forced ventilation active strategies in all spaces with cold air from the external environment during the night, and in occupied spaces with stored cold air from the underground space were used. In winter conditions forced ventilation from an internal greenhouse, to heat the internal occupied cold spaces, was used.

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“…The model used on Pirmasens Passive House can be applied to any passive house with arbitrary number of rooms and arbitrary space orientation [13]. The same model could be applied to the passive houses built in Romania .…”

Section: Passive Housesmentioning

confidence: 99%

Energy efficiency in the Romanian residential building stock: A literature review

Mureşan

Attia²

2017

Renewable and Sustainable Energy Reviews

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The building sector in Romania is dominated by residential buildings that are old and have poor thermal performance. As a member of the European Union, Romania has to reach the objectives imposed by the Directive 2009/28/EC and to fulfill the requirements of the Energy Performance of Buildings Directive (EPBD) by year 2020. The implementation of these concepts in Romania consists into thermal rehabilitation of the existing buildings, applying the latest thermal performance characteristics in new buildings and establishing the certificate of energy performance. The following paper presents the literature review of the state of building energy performance in Romania. The purpose of the literature review analysis is to provide a snapshot on the existing building energy efficiency and future perspectives on the implementation of high performance buildings in Romania. The implementation of concepts such as the Passive House (PH), nearly Zero Energy Buildings (nZEB) and Net Zero Energy Buildings (NZEB) are discussed in order to help the decision makers to achieve the 2020 objectives. The results of the reviewed publications and case studies are classified under three categories: policy and regulations, technology and feasibility. Finally a holistic perspective on the Strength, Weakness, Opportunities and Threats (SWOTs) of energy efficiency in Romania's residential building sector is presented.

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Renewable energy for passive house heating

Cited by 73 publications

References 1 publication

Reducing energy use in the buildings sector: measures, costs, and examples

Reducing energy use in the buildings sector: measures, costs, and examples

Numerical simulation of passive and active solar strategies in buildings with complex topology

Energy efficiency in the Romanian residential building stock: A literature review

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