TY JOUR TI KW heat storage KW carbon nanomaterial KW sodium acetate trihydrate KW paraffin KW modification JO Actual directions of scientific researches of the XXI century: theory and practice AU Shchegolkov, A.. AU Shchegolkov, A.. AU Popova, A.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov