A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Low-cost phase change materials based concrete for reducing deicing needs
Highlights Added value to organic household phase change materials (PCMs) such as coconut oil, soybean oil, and paraffin wax. Utilized lightweight aggregate vacuum impregnated with PCMs to produce concrete. Investigated thermal performance of PCM-concrete during an actual field test in winter weather. Reported the temperature profile and energy storage of actual winter field test of PCM-concrete for the first time.
Abstract Application of deicing salts is a common technique to improve winter safety; however, the widespread salt application causes decreased infrastructure lifespan, and potential environmental pollution and is a high cost. In this study, low-cost thermal energy storage aggregates (TESA) were created with several different organic phase change materials (PCMs), possessing thermodynamic properties suitable for heat storage under freezing conditions. PCMs used in the study include individual blends of paraffin wax, soybean oil, and coconut oil. TESA was coated with latex to prevent leakage. The results showed the relative contribution of both sensible and latent heat storage behaviors. A methodology considering system energy input and discharge using a battery storage analogy is presented, allowing heat movement quantification under actual winter conditions. The results showed the most significant increase in heat storage and delay in freezing for a combination PCM of paraffin wax and soybean oil. TESA concrete is one potential approach requiring little operational management to reduce the amount of deicing salts or other winter maintenance while minimizing environmental impacts and safety concerns. Hence, TESA could provide a sustainable and feasible option for cold regions.
Low-cost phase change materials based concrete for reducing deicing needs
Highlights Added value to organic household phase change materials (PCMs) such as coconut oil, soybean oil, and paraffin wax. Utilized lightweight aggregate vacuum impregnated with PCMs to produce concrete. Investigated thermal performance of PCM-concrete during an actual field test in winter weather. Reported the temperature profile and energy storage of actual winter field test of PCM-concrete for the first time.
Abstract Application of deicing salts is a common technique to improve winter safety; however, the widespread salt application causes decreased infrastructure lifespan, and potential environmental pollution and is a high cost. In this study, low-cost thermal energy storage aggregates (TESA) were created with several different organic phase change materials (PCMs), possessing thermodynamic properties suitable for heat storage under freezing conditions. PCMs used in the study include individual blends of paraffin wax, soybean oil, and coconut oil. TESA was coated with latex to prevent leakage. The results showed the relative contribution of both sensible and latent heat storage behaviors. A methodology considering system energy input and discharge using a battery storage analogy is presented, allowing heat movement quantification under actual winter conditions. The results showed the most significant increase in heat storage and delay in freezing for a combination PCM of paraffin wax and soybean oil. TESA concrete is one potential approach requiring little operational management to reduce the amount of deicing salts or other winter maintenance while minimizing environmental impacts and safety concerns. Hence, TESA could provide a sustainable and feasible option for cold regions.
Low-cost phase change materials based concrete for reducing deicing needs
Methode Kalombe, Rosicky (author) / Sobhansarbandi, Sarvenaz (author) / Kevern, John (author)
2022-09-08
Article (Journal)
Electronic Resource
English
Deicing , Phase change materials , Concrete , Heat storage , COSO , Blend of coconut oil and soybean oil , Control 1 , Concrete made of LST as aggregate , Control 2 , Concrete made of EC as aggregate , EC , Expanded clay , LST , Limestone , LWA , Lightweight aggregate , PCM , Phase change material , PW , Paraffin wax , PWSO , Blend of paraffin wax and soybean oil , RMK 1 , Concrete made of PW-TESA as aggregate , RMK 2 , Concrete made of PWSO-TESA as aggregate , RMK 3 , Concrete made of COSO-TESA as aggregate , SG , Specific Gravity , TESA , Thermal energy storage aggregate
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