Method of action of the pulsating heat pipe, its construction and the devices on its base

The pulsating heat pipe apparatus comprising:

• a) continuous tube, b) formed as a system of branches with a cooling, a transport and a heating section to allow movement of the liquid and vapor slugs of the heat carrier, d) where maximum relative radius R*k of the said tube is corresponding the condition:
• R*k<2.2, where R*k=Rk /δ/gΔρ,
• (e) and where the minimum relative length of the slug R*sl will not be lower than
• R*sl ≳1.5-2.0, where R*sl =Rsl /δ/gΔρ,
• and Rsl =[3Vsl /4π],
• Where:
• R*k—the relative radius of a tube,
• R*sl—the relative equivalent radius of the slug,
• Rk—the radius or equivalent radius of a tube,
• δ—the surface tension,
• g—the gravitation acceleration,
• Δρ—the difference of densities between of liquid and vapor of the heat carrier,
• Vsl—the volume of the slug, π=3.14.