Method and apparatus for cogeneration power plant waste heat source utilization by incorporated water source high temperature heat pump

A method for controlling an internal combustion engine and at least one adopted water source high temperature heat pump (HP) to enhance the heating power of an internal combustion engine (ICE) cooling system by a liquid-vapor phase change thermodynamic cycle utilization, the method comprising:

• a determination process, wherein at least one input from internal combustion engine (ICE) sensors and/or heat distribution network sensors is determined by at least one control unit for comparison process;
• a comparison process, wherein at least one of the inputs from determination process is checked and processed, wherein the value of at least one input parameter is analyzed at least one control unit and compared to the limiting values, preferably defined in said control unit;
• an execution process, wherein instructions, preferably stored in at least one control unit, generate appropriate output signal for control of internal combustion engine (ICE) and/or heat pump (HP) and/or heat distribution network automated regulation means adjustment, characterized in that,
• at least one parameter to control the power of the internal combustion engine (ICE) and/or the power of the heat pump (HP) and/or the state and/or the position of automated regulation means in heat distribution network is determined for waste heat source utilization and thermal energy balance execution, wherein at least a portion of the heat required for heat pump (HP) principle utilization is gained fully or in part by waste heat recovery process, and wherein at least a portion of the heat generated by the heat pump (HP) is used for reheating a coolant in a return line of the internal combustion engine (ICE) cooling system in order to establish the set-point value of the coolant inlet temperature, wherein the set-point value is substantially higher than 60° C.

An apparatus assembly for cogeneration plant waste heat source utilization comprising:

• at least one internal combustion engine (ICE) further comprising an engine cooling system, exhaust system, a lubrication oil cooling system and a charging air cooling system, wherein said engine cooling system further comprises at least one inflow aperture and at least one outflow aperture;
• at least one water source high temperature heat pump (HP), wherein said heat pump (HP) further comprises a lubrication oil cooling system, an evaporator unit and a condenser unit, and wherein said condenser unit further comprises an inlet aperture and an outlet aperture;
• and at least one waste heat recovery unit, preferably a heat exchanger (HE2) adapted to be associated with said evaporator unit in a closed loop circuit characterized in that
• said waste heat recovery unit is adapted to be associated with at least one from group of waste heat sources comprising an exhaust system, a lubrication oil cooling system and charging air cooling system for collecting the heat of said waste heat source;
• said evaporator unit is adapted to be associated with said waste heat recovery unit in a closed loop circuit for transferring the collected heat from said waste heat recovery unit to said evaporator unit by a secondary heat transfer medium in said closed loop circuit;
• said outlet of the condenser unit is adapted to be associated with said inflow of the engine cooling system for transferring the heat of condenser unit to the engine cooling system by a primary heat transfer medium in a heat distribution circuit;
• the inlet of said condenser unit and said outflow of the engine cooling system are adapted to be associated with said heat distribution circuit, wherein said heat distribution circuit further comprises at least one thermal energy receiving unit, preferably a heat consumer (HC).