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A heat transfer tube for an evaporator, an evaporator equipped with this, a turbo chiller equipped with the same, and a method for designing a heat transfer tube for an evaporator and a method for designing an evaporator.
A heat transfer tube for an evaporator, an evaporator equipped with this, a turbo chiller equipped with the same, and a method for designing a heat transfer tube for an evaporator and a method for designing an evaporator.
PROBLEM TO BE SOLVED: To provide a heat transfer tube for an evaporator capable of improving heat transfer performance on the outer surface of the tube. SOLUTION: A cold water heat transfer tube 9a is provided so as to be adjacent to a main body tube portion 9b through which cold water flows, over the entire main body tube portion 9b, and protrudes outward from the main body tube portion 9b and is inside. A plurality of fins 9c whose tip portions 9c1 are bent so that a cavity S is formed therein are provided. When the main body pipe portion 9b is viewed from the outside, when the representative diameter corresponding to the area of the gap BL of the adjacent fins 9c is L and the width between the roots of the adjacent fins 9c is the tunnel width Bt, L / Bt. Is 0.15 or more and 0.5 or less. [Selection diagram] FIG. 3C
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