Turbine and brayton cycle including same

A Brayton cycle;

• comprising:
• a heat source,
• a regenerator,
• a pre-cooler,
• a compressor,
• a generator,
• a circulating working medium circulating in the Brayton cycle, and
• a turbine comprising:
• a plurality of blades, wherein:
• at least one of the blades has a cooling working medium inlet and at least one cooling working medium jet orifice;
• the blade has a blade surface and is provided with hollow interior;
• the cooling working medium jet orifice is provided on the blade surface;
• the cooling working medium inlet is configured to enable a cooling working medium jet of the cooling working medium to enter the blade for cooling through the cooling working medium inlet;
• the blade surface is provided with a spectral conversion coating;
• the cooling working medium jet orifice is configured to enable the cooling working medium jet entering the blade to flow out through the cooling working medium jet orifice and form a cooling working medium jet diaphragm layer on a surface of the spectral conversion coating;
• and
• wherein the spectral conversion coating is configured to convert heat of the blade surface into conversion characteristic band radiation which is radiation energy adjacent to cooling working medium characteristic band radiation of the cooling working medium
• wherein the turbine, the generator and the compressor are connected by a same shaft;
• the heat source, the turbine, hot side inlets and hot side outlets of the regenerator, the pre-cooler, the compressor, cold side inlets and cold side outlets of the regenerator are sequentially connected;
• the outlet of the heat source is connected to the inlet of the turbine;
• the outlet of the turbine is connected to the hot side inlet of the regenerator;
• the hot side outlet of the regenerator is connected to the inlet of the pre-cooler;
• the outlet of the pre-cooler is connected to the inlet of the compressor;
• the outlet of the compressor is connected to the cold side inlet of the regenerator;
• the cold side outlet of the regenerator is connected to the inlet of the heat source so as to form a circulating hot loop;
• wherein the circulating working medium absorbs heat from the heat source;
• the circulating working medium after a rise of temperature expands and works in the turbine;
• the turbine drives the generator to generate electricity through the shaft;
• the expanded circulating medium flows through the regenerator to exchange heat;
• the circulating working medium enters the pre-cooler, the compressor and the regenerator in turn after a fall of temperature;
• the circulating working medium flows out of the cold side outlets of the regenerator and enters the heat source again to absorb radiation energy;
• power required by the work of the compressor is provided by the generator so as to complete a power generation cycle.