In day-to-day human activities which involve cooling, humidification and preservation, refrigeration plays a pivotal role in building efficient systems. Since evaporator deals with heat transfer processes, evaporator’s performance has a direct impact on the vapor compression refrigeration system. Thus, it is essential to investigate the performance of the evaporator through various parameters like evaporator type, design and refrigerant type. Longitudinal finned tube evaporator is one such evaporator which is simple in design. But to improve the thermal performance, various parameters such as number of fins, fin geometry have to be optimized which require detailed experimental and simulation studies. This manuscript mainly focusses on performance analysis of longitudinal finned tube evaporator through experiments and compares those results through a simulation model which is built using ANSYS. A custom-built refrigeration setup was built and by emulating the standard refrigeration conditions of refrigeration flowrates, various parameters such as temperature and volume flow rates were measured. Based on various volumetric flow rates derived parameters such as refrigeration capacity and heat transfer coefficient are measured and compared. Both the thermal parameters are observed to have a positive rise with increase in volumetric flow rate, which is inline with the theoretical concepts. A simulation model is built and those experimental results are compared. Even though variation in discrepancies is observed between experimental and simulation results, the dependence of the thermal parameters with volumetric flow rate is seen to be consistent. We believe that these studies will support further investigations into optimized fin designs for longitudinal fin evaporators, which is essential for developing efficient refrigeration systems across a range of applications.