06-09-2017, 12:36 PM
In engineering applications, ultrasound is used to improve the efficiency of systems. The intensification of chemical reactions, drying, welding and cleaning are among the various possible applications of ultrasonic waves. An analogous observation can be made for heat transfer processes, which are ubiquitous in the industry: refrigeration applications, heat exchangers, temperature control, and so on. It is logical and natural to ask what the influence of ultrasound on heat transfer systems might be. Curiously, it has not been a deeply researched research topic until recently.
A new type of ultrasonic assisted heat exchanger has been designed, built and studied. It can be seen as a vibratory heat exchanger. A complete description of the overall experimental configuration, ie the test platform and the acquisition system, is provided. The data acquisition and processing are explained step by step with a detailed example of the graph obtained and how, from these experimental data, the energy balance in the heat exchanger is calculated. It is shown that ultrasound can be efficiently used as a heat transfer enhancement technique, even in such complex systems as heat exchangers.
A new type of ultrasonic assisted heat exchanger has been designed, built and studied. It can be seen as a vibratory heat exchanger. A complete description of the overall experimental configuration, ie the test platform and the acquisition system, is provided. The data acquisition and processing are explained step by step with a detailed example of the graph obtained and how, from these experimental data, the energy balance in the heat exchanger is calculated. It is shown that ultrasound can be efficiently used as a heat transfer enhancement technique, even in such complex systems as heat exchangers.