Determining thermal and physical characteristics of wood polymer material for pipeline thermal insulation

Authors

DOI:

https://doi.org/10.15587/1729-4061.2023.289341

Keywords:

wood sawdust, binder resins, wood polymer material, thermal insulation of the pipeline, thermal conductivity

Abstract

One of the methods for ensuring the efficiency of pipelines for transporting heat-carriers during operation is their thermal insulation, which inhibits heat transfer processes and does not affect environmental indicators. Therefore, the object of research was wood, a polymer material made by polymerization of wood sawdust and dry mixtures of synthetic resins for thermal insulation of pipelines. It has been proven that in the process of thermal action on the heat insulating layer of wood polymer material, the process of heat inhibition involves the formation of pores. This is due to the fact that the thermal conductivity of the material depends on the volumetric mass, the decrease of which for a wood polymer product leads to a decrease in thermal conductivity. In this regard, the simulation of the process of heat transfer through a cylindrical heat-insulating layer made of wood of polymer material was carried out and the dependences derived, which allow obtaining a change in the dynamics of heat transfer and determining thermophysical properties. According to the experimental data and the established dependences, it was found that the thermal conductivity of the wood of the polymer material was within 2.4÷2.9·10-8 m2/s, the thermal conductivity of the sample did not exceed 0.030 W/(m∙K). In addition, the heat capacity of the product corresponds to a value of more than 1034÷1145 kJ/(kg·K) depending on the thickness, which accordingly categorizes it as a heat-insulating material. At the same time, data on thermal insulation properties for polyurethane foam show that when it is used with a density of 100 kg/m3, the thermal conductivity is 0.029 W/(m∙K), which is approximately the same as the value of the proposed wood polymer material. The practical value is the fact that the results of determining the heat-insulating properties of a wood polymer material make it possible to establish the scope and conditions of its application

Author Biographies

Yuriy Tsapko, National University of Life and Environmental Sciences of Ukraine

Doctor of Technical Sciences, Professor

Department of Technology and Design of Wood Products

Ivan Kasianchuk, Ukrainian State Research Institute "Resurs"

Researcher

Department of Research on Quality and Storage Conditions of Petroleum Products and an Industrial Group of Goods

Ruslan Likhnyovskyi, Institute of Public Administration and Research in Civil Protection

PhD

Research and Testing Center

Аleksii Tsapko, Ukrainian State Research Institute "Resurs"

PhD, Senior Researcher

Department of Research on Quality and Storage Conditions of Petroleum Products and an Industrial Group of Goods

Vitalii Kovalenko, Institute of Public Administration and Research in Civil Protection

PhD

Vadym Nizhnyk, Institute of Public Administration and Research in Civil Protection

Doctor of Technical Sciences, Professor

Research Center of Fire Protection

Olga Bedratiuk, Institute of Public Administration and Research in Civil Protection

Head of Sector

Sector of Quality System

Research and Testing Center

 

Maryna Sukhanevych, Kyiv National University of Construction and Architecture

Doctor of Technical Sciences, Associate Professor

Department of Building Materials

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Determining thermal and physical characteristics of wood polymer material for pipeline thermal insulation

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Published

2023-10-31

How to Cite

Tsapko, Y., Kasianchuk, I., Likhnyovskyi, R., Tsapko А., Kovalenko, V., Nizhnyk, V., Bedratiuk, O., & Sukhanevych, M. (2023). Determining thermal and physical characteristics of wood polymer material for pipeline thermal insulation. Eastern-European Journal of Enterprise Technologies, 5(10 (125), 63–72. https://doi.org/10.15587/1729-4061.2023.289341

Issue

Vol. 5 No. 10 (125) (2023): Ecology

Section

Ecology

License

Copyright (c) 2023 Yuriy Tsapko, Ivan Kasianchuk, Ruslan Likhnyovskyi, Аleksii Tsapko, Vitalii Kovalenko, Vadym Nizhnyk, Olga Bedratiuk, Maryna Sukhanevych

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