Abstract
In this study, the condensation pressure drop of R-1234yf according to the variation of the tube diameter is experimentally studied and it is intended to be provided as the basic data for the design of the condenser. The experiment measured the pressure drop of R-1234yf by changing the mass flow rate, saturation temperature, and tube diameter. It also compared with the pressure drop of R-134a under the same conditions. As a result, the pressure drop tends to increase as the mass flow rate increases and the tube diameter decreases. In addition, the pressure drop tends to decrease as the saturation temperature increases. As a result of comparing the experimental results and the pressure drop of R-134a, R-134a showed a larger tendency than R-1234yf. As a result of comparing the experimental results with the existing correlation equation, the correlation equation of Miyara et al showed the most similar prediction.
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