1. ANALYSIS OF ASPECTS AND SIMULATION MODELING OF THE THERMAL ENERGY MARKET IN UKRAINE 1.1. Introduction 1.2. The sphere of heat supply in Ukraine 1.3. Models of the thermal energy market 1.4. Analysis of literary data 1.5. Problems of the heat supply sector in Ukraine 1.6. Simulation model of the thermal energy market 1.6.1. Purpose and tasks of the research 1.6.2. Technical means for creation of the market of thermal energy 1.6.3. General principles of the formation of the heat energy market 1.6.4. Calculation of the full cost of thermal energy producers 1.6.5. Estimated thermal energy tariff 1.6.6. Organization of an auction on the sale and purchase of thermal energy 1.6.7. Optimizing producer costs 1.6.8. Financial results of producers in the Thermal Energy Market 1.6.9. Losses in heat networks 1.6.10. Model results 1.7 Estimation of the payback period of TEM at its creation in the city of Irpin .. 1.8. Conclusions OIPTIMIZATION OF CENTRALIZED HEAT SUPPLY OF BUILDINGS IN CONDITIONS OF PROGRAM SUPPLY OF HEAT 2.1. Features of modeling of individual elements of the heating system 2.2. Mathematical model 2.2.1. Assessment of comfort microclimate .4. ROBOTY PRZESTRZENNE RÓWNOLEGŁE 3-DoF 2.2.2. Transient thermal processes in multilayer building envelope 2.2.3. The internal environment of the building and heating system 2.2.4. Mathematical modeling automated thermal point 2.2.5. Modelling of heating network 2.3. Initial data for mathematical modeling of thermal and hydraulic processes of the system heat supplying 2.4. The results of mathematical experiments and their analysis 2.4.1. The research cooling mode 2.4.2. Determining necessary supply of area of a surface of heating system for work of program regulation 2.4.3. Thermal and hydraulic mode of heating system at program tempering heat 2.4.4. The research of work of the various systems of heating in a mode of heating the room before starting work 2.4.5. The research of work radiator thermostats in conjunction with automated 1TP 2.5. Conclusions 3. ENERGY SAVINGS IN HEAT SUPPLY SYSTEMS USING SOLAR ENERGY 3.1. Energy savings in heat supply systems using solar energy 3.1.1. Solar heat supply systems 3.1.2. Passive solar heat supply systems 3.2. Conclusions 4. RESEARCH OF BIOMASS GASIFICATION 4.1. Description of the experimental installation 4.2. Method of conducting research 4.3. Analysis of the results 4.4. Mathematical modeling of processes gasifications of the biofuel 4.5. Conclusions 5. SOLAR POWER SYSTEMS BASED ON STIRLING CYCLE MACHINES AND THERMOMOLECULAR TECHNOLOGY 5.1. Solar dish/stirling system based on UDS-1 machine 5.2. Experimental Research of SPS 5.3. Analysis of SC Characteristics 5.4. Solar dish/stirling system based on UDS-1 machine with rejected heat recovery 5.5. SolidWorks simulation of the rejected heat of the SPS based on UDS-1 5.6. Solar water-heat supply system with active thermodynamic circuit based on hydraulic piston converter