Consideration of a new extended power law of air infiltration through the building’s envelope providing estimations of the leakage area

Baracu, Tudor; Badescu, Viorel; Teodosiu, Catalin; Degeratu, Mircea; Patrascu, Monica; Streche, Constantin

doi:10.1016/j.enbuild.2017.04.055

Cited by 17 publications

(20 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…was chosen accordingly as the sintering temperature in the following study. It can be seen from Fig.6(a) that the samples containing 10 wt.% borax have the highest bulk densities, which is 1.0 g/cm 3 . When the content reaches to 20 wt.%, the densities decrease to 0.86 g/cm 3 .…”

Section: Effect Of Sintering Temperaturementioning

confidence: 96%

“…These samples were sintered at 800 ℃ and all had 20 wt.% borax, 1 wt.% foaming agent and 2 wt.% sodium phosphate. The S0 in Fig.1(b) is the green sample before sintering and this sample has a bulk density of 1.3 g/cm 3 . Fig.1(b) shows that from S1 to S5, sample volume first decreases then increases.…”

Section: Effect Of Mineral Wool Waste Contentmentioning

confidence: 99%

“…g/cm 3 . The density of sample sintered at 700℃ decreases sharply to 1.33 g/cm 3 . Then bulk density of sample relatively largely decreases to 0.87 g/cm 3 when sintered at 800 ℃ and slightly decreases to 0.76 g/cm 3 when sintered at 1000℃.…”

mentioning

confidence: 94%

“…In particular, the building operation sector consumption relating to heating and cooling systems accounts for over two thirds of building's life-cycle energy [2]. Air leakages and poor insulation of current buildings attribute to high energy consumption on space conditioning, corelating the increase in heating and cooling load [3] [4]. Given that 15% of the thermal leakage is released through building envelope, researchers have attached great importance to lowering the thermal conductivity of the building envelope to reduce heat loss from the inner environment [3].…”

Section: Introductionmentioning

confidence: 99%

“…Air leakages and poor insulation of current buildings attribute to high energy consumption on space conditioning, corelating the increase in heating and cooling load [3] [4]. Given that 15% of the thermal leakage is released through building envelope, researchers have attached great importance to lowering the thermal conductivity of the building envelope to reduce heat loss from the inner environment [3]. As a result, current policies reasonably require the retrofit for old buildings and efficient thermal insulation for new buildings [1].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Utilization of mineral wool waste and waste glass for synthesis of foam glass at low temperature

Zheng

Zou

et al. 2019

Construction and Building Materials

View full text Add to dashboard Cite

To reduce the energy consumed by building part, a new method of producing foam glass at low temperature was proposed in this study. Mineral wool waste and waste glass recycled from building construction and demolition (C&D) process were used as major raw materials. In the meanwhile, calcium carbonate (CaCO3), borax (Na2B4O7•10H2O) and sodium phosphate (Na3PO4•12H2O) were added as extra additives, which played the part of foamer, fluxing agent and foam stabilizer, respectively. The effects of different content of each additives and different sintering temperature on the properties of foam glass were investigated. Bulk density, cross-section view and microstructure of the specimens were showed. The experiment results showed that the optimal content of raw materials and additives was 40 wt.% mineral wool waste, 60 wt.% waste glass, 20 wt.% borax, 1-2 wt.% calcium carbonate and 2 wt.% sodium phosphate, and its optimal sintering temperature was 800℃. The specimen sintered at this optimal condition had the most uniform foam structure and low bulk density of 0.7 g/cm 3. Finally, 2 EnergyPlus TM was used to evaluate the benefit of applying this new foam glass on the reduction on space conditioning loads, especially in relatively colder zones.

show abstract

Section: Effect Of Sintering Temperaturementioning

confidence: 96%

Section: Effect Of Mineral Wool Waste Contentmentioning

confidence: 99%

mentioning

confidence: 94%