Autors: Danca P., Bayati A., Nastase I., Sandu M., Ivanov, M. P., Terziev, A. K., Mijorski S.
Title: "Advanced solutions to improve heat recovery from wastewater in a double heat exchanger"
Keywords: Heat recovery, Heat exchanger, Numerical Modelling, CFD

Abstract: Reducing energy consumption and CO2 footprint in existing buildings without requiring extensive construction work is one of the biggest challenges facing the globe today. Although heating contributes for the majority of energy use in buildings, residential hot water demand is also relatively high, particularly when daily usage is high and especially for certain applications. The use of technologies that recover energy from sources other than fossil fuels to heat water has grown crucial, and one such technology involves recovering thermal energy from wastewater. Typically, heat recovery from wastewater is made to collect any remaining energy from the hot drainage water, and this energy is then applied to heat pumps or to warm up incoming cold water. The paper presents numerical simulations using a SST k-ω turbulence model in order to compare a regular geometry of heat exchanger with a helicoidal one.



    IOP Conf. Series: Earth and Environmental Science 664 (2021) 012049, 2023, United Kingdom, IOP Publishing, DOI 10.1088/1755-1315/1128/1/012008, 2023

    Copyright IOP Publishing

    Вид: статия в списание, публикация в реферирано издание, индексирана в Scopus и Web of Science