TY JOUR TI INCREASING ENERGY EFFICIENCY OF THERMAL POWER PLANTS BASED ON EXERGIC ANALYSIS AND OPTIMIZATION OF HEAT RECOVERY SYSTEMS KW utilization KW heat KW energy efficiency KW analysis KW energy KW installation KW combined cycle KW efficiency KW optimization JO Transport engineering AU Bryantsev, M.A. AU Danileychenko, A.A. AU Dotsenko, D.M. AU Kovtun, A.S. PY 2026 IS 2026 PB Bryansk State Technical University