Improvement of district heating network energy efficiency by pipe insulation renovation with PUR foam shellsMašatin, Vladislav; Volkova, Anna; Hlebnikov, Aleksandr; Latõšov, EduardEnergy procedia2017 / p. 265-269 : ill https://doi.org/10.1016/j.egypro.2017.04.064 Conference proceedings at Scopus Article at Scopus Article at WOS