Experimental testing of phase change materials in a warm-summer humid continental climate

Šinka, Māris; Bajāre, Diāna; Jakovičs, Andris; Ratnieks, Janis; Gendelis, Staņislavs; Tihana, Jelena

doi:10.1016/j.enbuild.2019.04.030

Cited by 29 publications

(13 citation statements)

References 31 publications

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“…Most of the present studies focus on the application of PCMs in a hot climate [62]. However, the utilization of PCMs in mild climate regions is also associated with several benefits that need to be assessed [23].…”

Section: Discussionmentioning

confidence: 99%

“…Here, substantial differences in the PCM effectivity application in Chicago, Los, Angeles, Miami, and Phoenix highlighted divergent temperature fluctuations, especially during the summer and winter periods. Notwithstanding this, the lack of studies focused on the effectivity of PCM solution in mild climate limits a broader material application [23].…”

Section: Introductionmentioning

confidence: 99%

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Energy Efficiency of Novel Interior Surface Layer with Improved Thermal Characteristics and Its Effect on Hygrothermal Performance of Contemporary Building Envelopes

et al. 2020

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Facing the consequences of climate change and fuel price rises, the achievement of the requirements for low-energy consumption of buildings has become a challenging issue. On top of that, increased demands on indoor hygrothermal conditions usually require the utilization of additional heating, ventilation, and air-conditioning (HVAC) systems to maintain a comfortable environment. On this account, several advanced and modern materials are widely investigated as a promising way for reduction of the buildings’ energy consumption including utilization of passive heating/cooling energy. However, the efficiency and suitability of passive strategies depending on several aspects including the influence of location, exterior climatic conditions, load-bearing materials used, and insulation materials applied. The main objective of this study consists of the investigation of the energy performance benefits gained by the utilization of advanced materials in plasters by computational modeling. Results obtained from a computational simulation reveal the capability of the studied passive cooling/heating methods on the moderation of indoor air quality together with the reduction of the diurnal temperature fluctuation. Achieved results disclose differences in terms of energy savings for even small variation in outdoor climate conditions. Additionally, the effectivity of passive cooling/heating alters considerably during the summer and winter periods. Based on the analysis of simulated heat fluxes, the potential energy savings related to improved thermal properties of the applied plaster layer reached up to 12.08% and thus represent an interesting passive solution towards energy sustainability to meet the criteria on modern buildings.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Energy Efficiency of Novel Interior Surface Layer with Improved Thermal Characteristics and Its Effect on Hygrothermal Performance of Contemporary Building Envelopes

et al. 2020

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“…Hyper isolating envelopes, improper thermal mass, solar radiation, heating transmission loads, low density or specific heat, misuse of the design standard, lack of a proper thermal behaviour work plan, inappropriate optimal insulation thickness decisions and insufficient conventional control systems all have the potential to adversely affect thermal comfort management, thus resulting in degraded quality of the superficial mass and the value of internal areal heat capacity performance (Baglivo et al , 2017). Furthermore, other common issues in thermal comfort management noted by Wang et al (2015) and Sinka et al (2019) are as follows:Critical/loss of PC condition;Design of material and chemical composition (i.e. density and thermal conductivity);Inconsistent heat exchanger inspection;Inconsistent retrofit program;Lack of standardised technical directives;Subsequent phase change material (PCM) chosen for large thermal energy storage;Handling capacity of heavy load bearing components;Selection of type of ventilation or cooling system;Occupant evaluation criteria;Poor energy saving culture; andManagement of dynamic thermal risk from the relationship between designers and manufacturers.…”

Section: Thermal Comfort In Pc Building Construction Projectsmentioning

confidence: 99%

Section: Thermal Comfort In Pc Building Construction Projectsmentioning

confidence: 99%

Thermal comfort practices for precast concrete building construction projects: towards BIM and IOT integration

Ismail

2021

ECAM

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PurposeImproper evaluation and information mismanagement concerning thermal comfort appears to negatively affect occupants' satisfaction and building energy consumption in precast concrete (PC) building contexts. Predictive models are particularly problematic in PC building construction projects where natural ventilation levels do not coincide with occupants' thermal comfort and thermal sensation specifications.Design/methodology/approachA systematic literature review is undertaken to explore the viability and benefits of a new ICT-based approach for meeting social and environmental objectives.FindingsSophisticated thermal comfort system solutions are essential for optimising thermal comfort and saving energy in PC building construction projects.Originality/valueIt is imperative that designers and manufacturers are kept up-to-date with the possibilities and potentials associated with new and nascent technologies so that building projects can meet key sustainability criteria.

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“…The building and construction sector is the greatest energy-consuming sector [1] with a great share of the primary energy supply deriving from fossil fuels [2]. It represents more than 30% of the world's energy consumption and nearly 40% of the total energy-related CO 2 emissions [3,4].…”

Section: Introductionmentioning

confidence: 99%

Granular PCM-Enhanced Plaster for Historical Buildings: Experimental Tests and Numerical Studies

Baccega

Bottarelli

2022

Energies

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The construction sector is among the major players responsible for global energy consumption and therefore related emissions, both because of the constantly increasing indoor air quality standard which requires increasingly higher energy demands as well as the great share of historical buildings which are now obsolete and are not up to date with current regulations. Phase change materials (PCMs) applied on the building envelope represent a feasible possibility to improve the performance of existing buildings, also the historical ones, increasing their thermal inertia without violating any legal restriction or causing further alterations to the structure. More specifically, focus of this research was on the addition of a granular paraffin PCM into a lime-based plaster. Experimental tests at lab scale and numerical simulations with COMSOL Multiphysics were carried out to characterize the plasters realized, namely one reference lime-based plaster and one with incorporated 10% by mass of granular PCM (named REFp and PCMp, respectively). The behavior of these plasters applied on the exterior side of a wall was then simulated and compared in terms of temperatures and heat fluxes. However, considering that the estimated thermal conductivity of the reference lime-based plaster was lower than the values found in literature, the simulations were carried out considering an additional plaster, namely a lime-based plaster (renamed LITp), whose properties were found in literature and considered quite representative of a consistent share of existing historical buildings. Great improvements were observed from the application of PCM into the plaster, with reductions of the incoming energy between 9% and 18%.

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Experimental testing of phase change materials in a warm-summer humid continental climate

Cited by 29 publications

References 31 publications

Energy Efficiency of Novel Interior Surface Layer with Improved Thermal Characteristics and Its Effect on Hygrothermal Performance of Contemporary Building Envelopes

Energy Efficiency of Novel Interior Surface Layer with Improved Thermal Characteristics and Its Effect on Hygrothermal Performance of Contemporary Building Envelopes

Thermal comfort practices for precast concrete building construction projects: towards BIM and IOT integration

Granular PCM-Enhanced Plaster for Historical Buildings: Experimental Tests and Numerical Studies

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