air cooled heat exchanger calculations excel
- T_ambient)] / ln[(T_hot_in - T_ambient) / (T_hot_out - T_ambient)] In Excel: ```excel = ((T_hot_in - T_ambient) - (T_hot_out - T_ambient)) / LN((T_hot_in - T_ambient)/(T_hot_out - T_ambient)) ``` This value is pivotal for subsequent heat transfer calculations. Determine Overall Heat Transf