Reduce CO2 from buildings with technology to zero emissions

Meggers, Forrest; Leibundgut, Hansjürg; Kennedy, Sheila; Qin, Menghao; Schlaich, Markus P.; Sobek, Werner; Shukuya, Masanori

doi:10.1016/j.scs.2011.10.001

Cited by 60 publications

(29 citation statements)

References 16 publications

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“…In der Nachbarschaft sind keine größeren Gewässer vorhanden, so dass die Nutzung von Wasserkraft grundsätzlich Jahre und die Sanierung des Funktionsgebäudes zum Ende der 2030er Jahre werden sämtliche Gebäude weitgehend niedertemperaturfähig. Im Sinne eines minimalen ökologischen Fußabdrucks des Gesamtareals sollte bei den konkreten Neubau-und Sanierungsplanungen nicht nur der Energiebedarf in der Betriebsphase im Vordergrund stehen, sondern zusätzlich auch auf die in den Materialien enthaltene graue Energie und recyclinggerechte Konstruktionen geachtet werden [7]. Ab dem Jahr 2040 könnte damit begonnen werden, ein Niedertemperatur-Nahwärmenetz mit zusätzlicher Solarthermie-Anlage und thermischem Speicher aufzubauen.…”

Section: Regenerative Energiequellenunclassified

AKTIVkrankenhaus – Modernisierungsstrategie für ein klimaneutrales Krankenhausareal

et al. 2018

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Die Waldkliniken im thüringischen Eisenberg haben als erstes Krankenhaus das Ziel, ihren Gebäudebestand sowie die geplanten Neubauten durch den Zubau erneuerbarer Energien und eine intelligente Verbrauchssteuerung in naher Zukunft klimaneutral zu versorgen und somit den von Werner Sobek entwickelten Aktivhaus‐Standard für ein gesamtes Krankenhausareal zu erfüllen. Im Rahmen einer durch das Thüringer Ministerium für Umwelt, Energie und Naturschutz sowie den Europäischen Fonds für regionale Entwicklung (EFRE) geförderten Studie wurde eine entsprechende Modernisierungsstrategie entwickelt. Infolge des aktuell noch sehr hohen Energieverbrauchs wurden zunächst Effizienzpotenziale im Bestand analysiert. Im Anschluss fand eine Untersuchung der am Standort erschließbaren regenerativen Energiequellen statt. Darauf aufbauend wurden ein kurzfristig umsetzbares Energiekonzept sowie eine mittelfristige Modernisierungsstrategie entwickelt. Diese erlaubt es, bis zum Ende der 2040er Jahre ein AKTIVkrankenhaus zu realisieren und darüber hinaus sogar am Regelenergiemarkt teilzunehmen und somit die Energiewende überregional zu unterstützen.

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Section: Regenerative Energiequellenunclassified

AKTIVkrankenhaus – Modernisierungsstrategie für ein klimaneutrales Krankenhausareal

et al. 2018

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“…Due to the strict sustainability standards, the building industry has worked on new concepts for reducing the consumption of petrochemicals and carbon emission over the last decades . In addition to the application of wood, palm, wool, and cellulose fibers as a natural source in the building insulation, new systems with optimized energy consumption have been developed .…”

Section: Introductionmentioning

confidence: 99%

Polystyrene nanofibers for nonwoven porous building insulation materials

Datsyuk

Trotsenko

Peikert³

et al. 2019

Engineering Reports

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The building industry makes a great effort to reduce energy consumption. The use of nanotechnology is one of the approaches to surpassing the properties of conventional insulation materials. In this work, an industrial cost‐effective method to manufacture highly porous materials with excellent thermal insulation properties is described. The materials are prepared from polystyrene recovered from the building sector and electrospun as nanofiber‐based sheets. Varying electrospinning parameters allow controlling the morphology of the produced materials. The materials are obtained with differences in interfiber and inner‐fiber porosity and morphology. The thermal conductivity of the freestanding and compressed materials is evaluated. Those differences affect the insulation performance: the materials with higher interfiber porosity show better thermal insulation in the freestanding state. An increase of the inner‐fiber porosity leads to better insulation in the compressed samples. Insertion of carbon nanomaterials reduces the effects of the infrared Radiation. Nanofiber‐based insulation materials from the recycled expanded polystyrene (EPS) show thermal conductivity values of 20 to 25 mW/mK (ie, 20% to 30% below the thermal conductivity of the commercial EPS). The effect of integrating polystyrene nanofiber sheets into conventional wall‐building materials is also investigated in terms of thermal insulation. The nanofiber insulation sheets are sandwiched between two pieces of the building materials resulting in a drastic increase of the insulation effect. The materials have a great potential in using, for example, as thermal insulation for the restoration of historic buildings in the narrow central parts of the old towns.

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“…The global emission rate of greenhouse gas (GHG) in the Building sector is 4.1 Gt eq CO 2 (gigatonnes in CO 2 equivalent) in 2016 [1]. According to Meggers et al [2] the building sector alone is responsible for 35% of world emission of carbon dioxide (CO 2 ). This figure is steadily on the rise and can reach 50%…”

Section: Introductionmentioning

confidence: 99%

Thermomechanical Characterisation of Compressed Clay Bricks Reinforced by Thatch Fibres for the Optimal Use in Building

Nitcheu¹,

Meukam²,

Damfeu³

et al. 2018

MSA

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Thatch fibres grow in large quantity in the Adamawa region of Cameroon. During the long dry season, these fibres cause numerous fire incidents, which not only devastate large areas of cash crops, but also contribute to increase emissions of greenhouse gases into the atmosphere. This article aims to show how fibres could be used with compressed clay bricks to manufacture an insulating material used in building. Four fibre contents 1%, 2%, 3% and 4% made up the sample studied. The asymmetric hot plate methodology was used to determine the thermophysical properties of these composite materials. The volumetric heat capacity and the thermal effusivity of these materials were estimated. These two parametres were used to determine their apparent thermal conductivities. The results obtained show that the thermal conductivity decreases as the volume of fibres in the mixture increases. It is 0.689 W·m −1 ·K −1 for simple compressed clay bricks and 0.510 W·m −1 ·K −1 for a dosage at 3% of thatch fibres. In a bit to validate the results of the pilot study of the apparent thermal conductivity, the heat mass capacity of this composite material was achieved through the use of the dehydration method. The relative difference obtained with the results of the volumetric heat capacity carried out with these two methods was good. All results showed that the use of fibres in compressed laterite brick gives a more insulating composite material that respects Civil Engineering Norms.

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Reduce CO2 from buildings with technology to zero emissions

Cited by 60 publications

References 16 publications

AKTIVkrankenhaus – Modernisierungsstrategie für ein klimaneutrales Krankenhausareal

AKTIVkrankenhaus – Modernisierungsstrategie für ein klimaneutrales Krankenhausareal

Polystyrene nanofibers for nonwoven porous building insulation materials

Thermomechanical Characterisation of Compressed Clay Bricks Reinforced by Thatch Fibres for the Optimal Use in Building

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