Method and system for improving the efficiency of a boiler power generation system

A method for recovering thermal energy from a building having a plurality of heated water demand circuits and heated water supply circuits, comprising the steps of:

• heating a working fluid with a source of waste heat;
• determining a heated water demand of the building;
• determining a heated water supply of the building;
• exchanging said working fluid between the demand circuits and the supply circuits through a distribution manifold;
• and
• controlling said exchanging of working fluid by matching said heated water demand with said heated water supply.

A heat recovery apparatus for recovering heat from the hot gases within a flue, said apparatus comprising:

• a gas manifold, coupled to the flue, for receiving the hot gases;
• a liquid manifold, coupled to said gas manifold, for receiving a working fluid;
• a plurality of heat pipes having an evaporation section and a condensation section, where said heat pipes extend through a metal plate separating said gas manifold from said liquid manifold, where said evaporation sections of said heat pipes are disposed within said gas manifold and said condensation sections of said heat pipes are disposed within said liquid manifold, where heat is extracted from the hot gases within the flue to heat said working fluid;
• and
• a fluid storage section extending from said liquid manifold, for storing said heated working fluid.

A heat recovery apparatus for recovering heat from the hot gases around the burners of a cooking range, said apparatus comprising:

• a first plate having a plurality of apertures;
• a liquid manifold, coupled to said first plate, for receiving a working fluid;
• a second plate having a plurality of apertures,. coupled to said water manifold, where said plates and said liquid manifold defines a substantially enclosed space around the burners of the cooking range;
• and
• a plurality of heat pipes having an evaporation section and a condensation section, where said heat pipes extend through said liquid manifold, where said evaporation sections of said heat pipes are disposed within said substantially enclosed space and said condensation sections of said heat pipes are disposed within said liquid manifold, where heat is extracted from the hot gases around the burners to heat said working fluid.

A heat recovery apparatus for recovering heat from waste fluids, said apparatus comprising:

• a first liquid manifold having a substantial cone shape, coupled to a sewage pipe, for receiving the waste fluids;
• a second liquid manifold, coupled to said first liquid manifold, for receiving a working fluid;
• and
• a plurality of heat pipes having an evaporation section and a condensation section, where said heat pipes extend through a metal plate separating said first liquid manifold from said second liquid manifold, where said evaporation sections of said heat pipes are disposed within said first liquid manifold and said condensation sections of said heat pipes are disposed within said second liquid manifold, where heat is extracted from the waste fluids to heat said working fluid.