Testing of the low-pressure large-scale vortex tube

Several authors have studied on the high-efficiency vortex devices that the self-vacuum type vortex pipes are much more effective (3 times) than the conventional machines. The use of conventional vortex pipes is limited in engineering applications because of the low thermodynamic efficiency. The separation of gaseous condensate, separation of liquefied air, etc. are typical examples. No any study on vortex pipes being used as heat pumps has appeared in the literature. Some technological studies on heat energy generation using new techniques and heat transformation devices must be undertaken to meet the energy requirements of societies. In this study, a new vortex devices presented. As a new technique in first system a fan was installed in the cavity of the vortex pipe and created a rotating flow (without using a compressor). This vortex flow obtained by the fan provided warm and cold flows, based on the Ranque effect. This device increased the air temperature between 6-10C. Its experimental heating factor was determined to be 6.93. However, the device, which presented above does not allow to simulate a simple analog of the thermal separation of the flow. The non-traditional motion seal at the top of the tube changes the parameters of vortex. It complicates the examination of this vortex process. We need simpler device for simulation of this phenomenon. A new device was developed for this purpose, which generates a vortex from the action of a wave with specific frequency. This device is convenient for researching vortex flows because the initial conditions and parameters of this process are easy to determine and simply related. The results of these experiments allow studying vortices as circular waves. This significantly simplifies their examination.