a turbine component comprising a first layer 3 of serpentine cooling channels for a coolant a second layer 5 of serpentine cooling channels for the coolant the channels are tubes each channel of the first layer 3 of serpentine cooling channels comprises inlet 1 and outlet 8 each channel of the second layer 5 of serpentine cooling channels comprises inlet 9 and outlet 7 each channel of the first layer comprises first 90 degrees bend 2 located near the inlet 1 of each channel of the first layer each channel of the first layer comprises second 90 degrees bend located near the outlet 8 of each channel of the first layer and each channel of the second layer comprises third 90 degrees bend located near the inlet 9 of each channel of the second layer the second 90 degrees bend and the third 90 degrees bend associate connect and form 180 degrees bend 4 each channel of the second layer comprises fourth 90 degrees bend 6 located near the outlet 7 of each channel of the second layer the channels of the both layers are implemented cylindrical from the improved lifetime point of view the channels of the first layer 3 are located parallel with respect to each other the channels of the second layer.