Effective heat capacity of interior planar thermal mass (iPTM) subject to periodic heating and cooling

Ma, Peizheng; Wang, Lin–Shu

doi:10.1016/j.enbuild.2011.11.020

Cited by 38 publications

(24 citation statements)

References 10 publications

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“…Compared with air, water is a more space-efficient method of transferring heat and coolness in a building, as well as a more energy-efficient method [18]. Unlike the periodic heating and cooling by air on a slab surface, where only the slab's surface layer is thermally activated [19,20], the whole slab of TABS is activated by the water in the embedded pipes. And thus a building's operative temperature remains within the thermal comfort zone in the daytime, even with the water pump off [21].…”

Section: Typical Configuration Of Tabsmentioning

confidence: 98%

Energy storage and heat extraction – From thermally activated building systems (TABS) to thermally homeostatic buildings

Wang

Guo

2015

Renewable and Sustainable Energy Reviews

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Section: Typical Configuration Of Tabsmentioning

confidence: 98%

Energy storage and heat extraction – From thermally activated building systems (TABS) to thermally homeostatic buildings

Wang

Guo

2015

Renewable and Sustainable Energy Reviews

Self Cite

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“…The moisture content of the material may influence both these properties (e.g., the heat capacity as well as the conductivity of wood will rise as a result of increased moisture content). When combined with the diurnal temperature variation of 24 hours, the effective thickness of the material layer can be calculated, and further, the effective heat capacity per m 2 can be defined (Dokka ; Ma and Wang ).…”

Section: Introductionmentioning

confidence: 99%

Building Materials in the Operational Phase

Nordby¹,

Shea²

2013

J of Industrial Ecology

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How sustainable are the various building materials, and what are the criteria for assessment? The scope of this article is to explore in what ways responsible and conscious use of materials can yield environmental benefits in buildings. In particular, it discusses how material properties related to thermal and hygroscopic mass can be utilized for achieving energy efficiency and good indoor air quality, and how these gains can be included into the context of life cycle assessment (LCA).A case study investigates and compares carbon impacts related to three design concepts for an exterior wall: (A) concrete/rock wool; (B) wood studs/wood fiber; and (C) wood studs/hemp lime. The thermal performance of concepts B and C are modeled to comply with concept A regarding both thermal transmittance (U-value) and dynamic heat flow (Q 24h ) using the design tool WUFI Pro. An environmental cost-benefit analysis is then accomplished in four steps, regarding (1) manufacturing and transport loads, (2) carbon sequestration in plant-based materials and recarbonation in concrete/lime, and (3 and 4) potentially reduced operational energy consumption caused by heat and moisture buffering. The input data are based on suggested values and effects found in the literature.The summarized results show that wall A has the highest embodied carbon and the lowest carbon storage and recarbonation effects, whereas wall C2 has the lowest embodied carbon and the highest carbon storage and recarbonation effects. Regarding buffering effects, wall A has the highest potential for thermal buffering, whereas wall C has the highest potential for moisture buffering. Keywords:architecture carbon sequestration energy efficiency industrial ecology life cycle assessment (LCA) materials properties

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“…This study examined the previous studies that analyzed the energy reduction according to the building thermal performance, focusing on the thermal mass and trombe wall (refer to Table 5) [56][57][58][59][60][61][62][63][64][65][66]. First, there are many previous studies that focused on reducing the heating and cooling demand of a building through the heat storage function of the thermal mass [56][57][58][59][60][61]. Ma and Wang (2012) conducted a numerical analysis of the dynamic heat transfer performance of the interior planer thermal mass according to the thermal mass thickness (i.e., 0.025~0.70 m) and type (i.e., wood, concrete, and steel).…”

Section: Part A-1: Passive Sustainable Designmentioning

confidence: 99%

“…First, there are many previous studies that focused on reducing the heating and cooling demand of a building through the heat storage function of the thermal mass [56][57][58][59][60][61]. Ma and Wang (2012) conducted a numerical analysis of the dynamic heat transfer performance of the interior planer thermal mass according to the thermal mass thickness (i.e., 0.025~0.70 m) and type (i.e., wood, concrete, and steel). It was found that the heat storage ability of the thermal mass relies on the thermal mass thickness for reaching a superlative value [58].…”

Section: Part A-1: Passive Sustainable Designmentioning

confidence: 99%

“…Ma and Wang (2012) conducted a numerical analysis of the dynamic heat transfer performance of the interior planer thermal mass according to the thermal mass thickness (i.e., 0.025~0.70 m) and type (i.e., wood, concrete, and steel). It was found that the heat storage ability of the thermal mass relies on the thermal mass thickness for reaching a superlative value [58]. Chernounsov and Chan (2016) analyzed the thermal performance of the building-envelope-integrated PCM with a high specific heat capacity using the EnergyPlus software program for an office building in Hong Kong.…”

Section: Part A-1: Passive Sustainable Designmentioning

confidence: 99%

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Advanced Strategies for Net-Zero Energy Building: Focused on the Early Phase and Usage Phase of a Building’s Life Cycle

Hong

Kim

et al. 2017

Sustainability

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Abstract:To cope with 'Post-2020', each country set its national greenhouse gas (GHG) emissions reduction target (e.g., South Korea: 37%) below its business-as-usual level by 2030. Toward this end, it is necessary to implement the net-zero energy building (nZEB) in the building sector, which accounts for more than 25% of the national GHG emissions and has a great potential to reduce GHG emissions. In this context, this study conducted a state-of-the-art review of nZEB implementation strategies in terms of passive strategies (i.e., passive sustainable design and energy-saving technique) and active strategies (i.e., renewable energy (RE) and back-up system for RE). Additionally, this study proposed the following advanced strategies for nZEB implementation according to a building's life cycle: (i) integration and optimization of the passive and active strategies in the early phase of a building's life cycle; (ii) real-time monitoring of the energy performance during the usage phase of a building's life cycle. It is expected that this study can help researchers, practitioners, and policymakers understand the overall implementation strategies for realizing nZEB.

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Effective heat capacity of interior planar thermal mass (iPTM) subject to periodic heating and cooling

Cited by 38 publications

References 10 publications

Energy storage and heat extraction – From thermally activated building systems (TABS) to thermally homeostatic buildings

Energy storage and heat extraction – From thermally activated building systems (TABS) to thermally homeostatic buildings

Building Materials in the Operational Phase

Advanced Strategies for Net-Zero Energy Building: Focused on the Early Phase and Usage Phase of a Building’s Life Cycle

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