EXPERIMENTAL ANAYLISIS ON HEAT TRANSFER RATE OF SHELL AND TUBE HEAT EXCHANGER BY EXTRACT OF CIRTULLUS LANATUS AS A COOLANT

Heat transfer is one of the most important processes inside the industry so increasing heat exchanger efficiency has a great use and major beneficial effect to the heat transfer. The thermal fluids like distilled water and ionized water are used as their application in diverse industries, to improve heat transfer and to save energy, has increased. One important aspect of applying these waters, thermal processing is shortening the process time which could have high potentials in the food industry since nutritional and bioactive components would be maintained much higher than common thermal processes. In this project, distilled water in 200liters, ionized water in 100ml, during high temperature short time processing (75, 80 and 85°C for 15, 30 and 45 sec) of watermelon juice with 40ml in a shell and tube exchanger regarding its qualitative properties was investigated. Reduction in process time when applying 200 litres and 100ml thermal fluids, had considerable effects on maintaining qualitative properties for watermelon juices. The project objective is to design an experimental system of shell and tube heat exchanger using thermal fluids in the shell side. Comparison with pure fluid, the experiment is to be characterized of two types of water, which are distilled and ionized water, both types of thermal fluids are mixed with water melon separately as a heat transfer medium through the shell and tube heat exchanger. We examined the discrepancy in performance and efficiency of the heat exchanger when thermal fluids are utilized instead of the normal process fluids. The result is shown improvement in efficiency when using distilled and ionized water as a heat transfer medium since these possess more advantageous to the conventional