Chilled-water cooling coils for cool storage: Experimental studies and mathematical modeling. Final report

An experimental and analytical study of the performance characteristics of chilled-water cooling coils was undertaken, and a model capable of predicting the performance of such coils was developed. The model includes appropriate formulas for calculating the heat transfer coefficients and friction factors on the air and water sides of the coil, as well as a procedure for calculating the condensation rate on the air side. The water-side heat transfer coefficient is calculated by the Gnielinski correlation, while the air-side heat transfer coefficient is obtained from a correlation developed from the experimental data obtained during this study. The validity of the coil model was established by comparing its predictions to available experimental data from the literature. Parametric studies were conducted using the model to assess the importance of various geometric characteristics and operating conditions of the coil.