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Registration Number

0226U000887, (0125U001556) , R & D reports

Title

Research on the efficiency of spiral coiled heat exchangers in urban wastewater systems

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Формулювання математичних моделей та розробка технічних рішень для проведення експериментальних випробувань

Head

Biletskyi Ihor V., Доктор економічних наук

Registration Date

17-01-2026

Organization

O.M. Beketov national university of urban economy in Kharkiv

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Development of innovative solutions for the creation of highly efficient low-potential heat recovery systems based on heat exchangers made of modified thermoplastic materials with increased thermal conductivity and two-phase pumping systems

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The research project is devoted to the study and improvement of the efficiency of spiral-wound heat exchangers intended for the recovery of low-grade heat from wastewater in urban drainage systems. The relevance of the research is driven by the need to reduce energy consumption of municipal infrastructure, decrease the use of primary energy resources, and increase the energy efficiency of urban engineering systems under growing energy and environmental challenges. Significant amounts of thermal energy contained in wastewater are currently underutilized, which justifies the development of new technical solutions for their recovery. The aim of the project is to develop scientifically grounded approaches for creating highly efficient heat recovery systems based on spiral-wound polymer heat exchangers with enhanced thermophysical properties. Within the first stage of the project, a theoretical and methodological framework was established, a review of current national and international solutions in the fields of heat transfer and polymer materials was carried out, and key directions for further research were identified. A mathematical model for the optimal arrangement of thermally conductive fillers in a thermoplastic matrix was developed, enabling an increase in the effective thermal conductivity of the material while maintaining required physical and mechanical constraints. An optimization algorithm based on numerical methods was proposed. The morphological characteristics of the material components were analyzed, and several compositions of multicomponent thermoplastic materials were formulated. Conceptual designs of a component mixing system and an experimental test bench for a two-phase pumping system were developed to investigate thermo-hydraulic processes in polymer heat exchanger channels.

Product Description

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Olha P. Arsenyeva
Andrii V. Kondratiev
Natalia O. Teliura
Yevhen V. Tsegelnyk
Ihor V. Biletskyi
Vasyl I. Ruzaikin
Andrii O. Tymchuk
Serhii S. Hrebenchuk

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2026-01-17