TY JOUR TI CALCULATION OF DIRECTION DIAGRAM OF THERMAL RADIATION THROUGH OPENINGS AT FIRES AT OIL AND GAS COMPLEX FACILITIES KW oil and gas complex KW fire KW combustible liquid KW highly flammable liquid KW safe distances KW thermal radiation KW radiation pattern KW angle of mutual exposure KW coefficient of aperture JO Problems of risk management in the technosphere AU Sharapov, S.V. AU Kuzmin, A.A. AU Romanov, N.N. PY 2018 IS 2018 PB Saint-Petersburg University of State Fire Service of Emercom of Russia