The mechanism of heat transfer in a spray column heat exchanger

✍ Scribed by Ruth Letan; Ephraim Kehat

• Publisher: American Institute of Chemical Engineers
• Year: 1968
• Tongue: English
• Weight: 710 KB
• Volume: 14
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690140312

✦ Synopsis

a spray column Temperature profiles of dispersed kerosene and water were measured in I heat exchanger,. 15 cm. in diameter and 160 cm. long. Dispersed packing of drops and narrow temperoture ranges were used. The flow rates used were 0 to 50 liters/min. of water ond 5 to 40 liters/min. of kerosene. The physical picture that emerges from the temperature profiles is that heat is transferred from fully mixed drops to fully mixed wakes while the wakes are formed, by shedding and renewal of elements of wakes in most of the column and by complete mixing of all streams ot the water inlet a t the top of the column. Mathematical equations were developed from the physical model. The volume of the wakes and the rate of shedding of wake elements were estimated from the temperoture profiles and were used to calculate the temperoture profiles for this and for other studies. The agreement of the calculated profiles with the experimental data is very good.