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Information × Registration Number 0226U000887, (0125U001556) , R & D reports Title Research on the efficiency of spiral coiled heat exchangers in urban wastewater systems popup.stage_title 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 popup.description1 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 popup.description2 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 popup.authors Olha P. Arsenyeva Andrii V. Kondratiev Natalia O. Teliura Yevhen V. Tsegelnyk Ihor V. Biletskyi Vasyl I. Ruzaikin Andrii O. Tymchuk Serhii S. Hrebenchuk popup.nrat_date 2026-01-17 Close