Hot water heating circuit with impulse cavitator

An effective method of multifactorial influence on a liquid is cavitation, which leads to a change in the physicochemical characteristics of the liquid, its activation and heating. One of the devices, the principle of which is based on cavitation, is a cavitation heat generator. At present, the production of these units has been mastered by many manufacturers, and they appear in large numbers on the world market. Among the numerous designs of cavitation heat generators, a worthy place belongs to jet ones, which have the lowest pressure drop, but their efficiency is relatively low (from 20% to 40%) and does not meet modern requirements. The purpose of this work is to increase the efficiency of water heating in a cavitation heat generator based on the use of a pulsed mode of its operation. To achieve this goal, the following tasks were identified in the work: to develop a laboratory sample of a flow-pulse cavitator; to develop a diagram of a laboratory setup and a cavitator design; conduct hydraulic and thermal tests of the cavitator prototype, obtain the results and evaluate their effectiveness. Thus, the successful implementation of the goal of this work may encourage many industrial enterprises and households to abandon traditional heat supply systems and switch to modern sources of thermal energy, namely jet cavitation heat generators with a pulsed cavitator.