Characterization of Insulation Performance, Poststability, and Foaming Process of Rigid Polyurethane Sandwich Panel for Cold Storage Warehouse

Xu, Jie; Wu, Tao; Sun, Wei; Peng, Chuang

doi:10.1061/(asce)mt.1943-5533.0001984

Cited by 8 publications

(5 citation statements)

References 15 publications

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“…For higher entropy of vaporization, defined as isochoric enthalpy change rate at boiling temperature, these blowing agents can reduce heat transfer at lower temperature. This phenomenon has been confirmed in previous experimental measurements of HCFC-245fa thermal conductivity [80]. This phenomenon evidently suggests that GLB model does not well consider the blowing agents difference in polyurethane cellular foams, particularly for the case at lower temperature.…”

Section: Heat Transfer Prediction Based On Deltoid Modelingsupporting

confidence: 78%

Geometric modeling of Plateau borders using the orthographic projection method for closed cell rigid polyurethane foam thermal conductivity prediction

Peng

et al. 2017

Modelling Simul. Mater. Sci. Eng.

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The geometric Plateau border model for closed cell polyurethane foam was developed based on volume integrations of approximated 3D four-cusp hypocycloid structure. The tetrahedral structure of convex struts was orthogonally projected into 2D three-cusp deltoid with three central cylinders. The idealized single unit strut was modeled by superposition. The volume of each component was calculated by geometric analyses. The strut solid fraction fs and foam porosity coefficient δ were calculated based on representative elementary volume of Kelvin and Weaire–Phelan structures. The specific surface area Sv derived respectively from packing structures and deltoid approximation model were put into contrast against strut dimensional ratio ε. The characteristic foam parameters obtained from this semi-empirical model were further employed to predict foam thermal conductivity.

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Section: Heat Transfer Prediction Based On Deltoid Modelingsupporting

confidence: 78%

Geometric modeling of Plateau borders using the orthographic projection method for closed cell rigid polyurethane foam thermal conductivity prediction

Peng

et al. 2017

Modelling Simul. Mater. Sci. Eng.

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“…Apart from using different types of core materials, Xu et al studied the effect of the foaming process on insulation thickness and the performance of PUF sandwich panels used in cold storage warehouses. Blends of blowing agents (HCFC‐141b/HFC‐245fa) of six different proportions were used during the manufacture of the PUF.…”

Section: Puf Core Sandwich Structuresmentioning

confidence: 99%

A review on recent advances in sandwich structures based on polyurethane foam cores

et al. 2020

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Sandwich composites with a polyurethane foam (PUF) core have become a versatile set of materials with applications ranging from basic construction elements to advanced engineering materials. This diverse range of applications has provided these sandwich materials with a distinctive position in today's engineering world. This review focuses on the broad research that has been carried out on PUF core‐based sandwich composites over the years—especially in the last decade. Thorough details have been presented focusing on basic PUF core sandwich structures, advanced PUF core sandwich composites with different kinds of reinforcements and complex structures such as hybrid sandwich panels. All the research presented here has been categorized carefully, such as the types of materials used in various studies, the types of reinforcements and testing techniques used, including mechanical, electrical, dynamic, thermal and acoustic methods etc. Comparisons have also been made based on similar materials, similar testing procedures and similar application areas. Research areas have been highlighted by giving a deep insight into the most promising research, manufacturing techniques and improvement procedures. Major consumption areas and application sectors for PUF core sandwich composites have also been discussed in this review. Finally, conclusions have been made based on the results found from a literature investigation.

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“…Even if the temperature is mitigated with isolation efforts suggested in 2.2.1, the insulation of a warehouse plays a huge role in temperature control, so it is not enough to invest in isolation measures to control the temperature. Companies should install heavy and thick insulation to enhance temperature control inside a warehouse & logistics facility [17]. This will also reduce the energy required for constantly adjusting the temperature [14].…”

Section: Insulationmentioning

confidence: 99%

Optimizing Energy Consumption in Warehouse & Logistics Facilities: Measures for Existing and Future Facilities

Abahussaien

2023

GJRE

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This paper offers a holistic approach in reducing energy consumption in industrial facilities, specifically warehouse & logistics facilities by exploring various ways or methods companies can adopt to reduce their warehouse & logistics facilities energy consumption, environmental impact, and operational expenses. It highlights the importance of why companies should invest in these green initiatives, as it will assist companies in complying with increasing regulations and mandates regarding greenhouse gas emissions (GHG), fulfilling their social responsibility to increasingly environmentally conscious consumers, rising utilization of e-commerce, and rising populations. The demand for these facilities will increase, and companies must be ready to meet this demand carefully, to balance their social responsibilities by reducing their GHGs, and their commitments to their shareholders by maintaining or improving their profit margins. Throughout this paper, measures for existing or in operation warehouse & logistics facilities will be highlighted, and then the paper will propose measures for future warehouse & logistics facilities to be considered to minimize their environmental impact.

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Characterization of Insulation Performance, Poststability, and Foaming Process of Rigid Polyurethane Sandwich Panel for Cold Storage Warehouse

Cited by 8 publications

References 15 publications

Geometric modeling of Plateau borders using the orthographic projection method for closed cell rigid polyurethane foam thermal conductivity prediction

Geometric modeling of Plateau borders using the orthographic projection method for closed cell rigid polyurethane foam thermal conductivity prediction

A review on recent advances in sandwich structures based on polyurethane foam cores

Optimizing Energy Consumption in Warehouse & Logistics Facilities: Measures for Existing and Future Facilities

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