TY JOUR TI MODELING THE CIRCULATION OF A PHASE-CHANGE HEATTRANSFER FLUID IN A CLOSED-LOOP GREENHOUSE HEATING SYSTEM BASED ON A HIGH-TEMPERATURE ENERGY STORAGE SYSTEM KW thermal energy storage KW heat accumulator KW numerical modeling KW SimInTech KW heat pipe KW greenhouse heating KW decentralized energy supply JO Vestnik of Kazan State Agrarian University AU Zinurov, V.E. AU Utkin, M.O. AU Dmitriev, A.V. AU Haliullin, D.T. AU Dmitrieva, O.S. PY 2026 IS 20 PB Kazan state agrarian University