Affiliation:
1. Laboratory on Convective Heat and Mass Transfer, Tomsk State University, Tomsk 634050, Russia
Abstract
Modern technologies of thermal power engineering make it possible to design and build systems using renewable energy sources. Often, energy accumulation and storage require the development and adaptation of appropriate systems, the simplest of which are passive systems based on phase-change materials. In this study, a numerical analysis of heat transfer in a brick wall containing several materials with different melting temperatures is carried out. The unsteady two-dimensional conjugate problem of phase transitions is considered, taking into account natural convection in the melt, which has been solved using the developed in-house finite difference technique. A numerical experiment has been carried out for a brick block with several rectangular inserts filled with PCMs under various external thermal conditions. As a result of the numerical analysis, it has been shown that the relative arrangement of materials with different melting points has a significant impact on the heat transfer and heat exchange between the environment and the room.
Funder
Russian Science Foundation
Subject
General Mathematics,Engineering (miscellaneous),Computer Science (miscellaneous)
Reference43 articles.
1. Investigation and properties of a novel composite bio-PCM to reduce summer energy consumptions in buildings of hot and dry climates;Boussaba;Sol. Energy,2021
2. Simultaneous and consecutive charging and discharging of a PCM-based domestic air heater with metal foam;Mahdi;Appl. Therm. Eng.,2021
3. Materials used as PCM in thermal energy storage in buildings: A review;Cabeza;Renew. Sustain. Energy Rev.,2011
4. Yang, G., Yim, Y.-J., Lee, J.W., Heo, Y.-J., and Park, S.-J. (2019). Carbon-Filled Organic Phase-Change Materials for Thermal Energy Storage: A Review. Molecules, 24.
5. A new design for hybrid cooling of Li-ion battery pack utilizing PCM and mini channel cold plates;Mousavi;Appl. Therm. Eng.,2021