In this paper,the formation of CaSO 4 deposit on heat transfer surface is investigated both theoretically and experimentally.The test run is performed with various treated surfaces and flow velocities. Microphotograph...In this paper,the formation of CaSO 4 deposit on heat transfer surface is investigated both theoretically and experimentally.The test run is performed with various treated surfaces and flow velocities. Microphotograph of deposit layer is made.The results obtained are compared with untreated surface under exactly identical conditions in order to determine the suitability and the characteristics of the various treated surface.It is found that the CaSO 4 deposit on the heat transfer surface can be reduced or even prevented by using surface modification techniques, such as dynamic mixing ion beam implantation and dynamic magnetron sputtering.展开更多
In this paper the effect of magnetron sputtering with DLC (diamond like carbon), DLC-F and AC on CaSO 4 scale formation was investigated. Fouling run were carried out under flow boiling conditions. The results showed ...In this paper the effect of magnetron sputtering with DLC (diamond like carbon), DLC-F and AC on CaSO 4 scale formation was investigated. Fouling run were carried out under flow boiling conditions. The results showed that surface sputtering with DLC et. reduces CaSO 4 scale formation significantly.展开更多
This paper reports the influences of heat transfer surface properties on the formation of CaSO4 fouling deposition during flow boiling heat transfer.The surfaces of several test heaters have been treated by surface mo...This paper reports the influences of heat transfer surface properties on the formation of CaSO4 fouling deposition during flow boiling heat transfer.The surfaces of several test heaters have been treated by surface modification techniques.such as dynamic mixing ion beam implantation and dynamic mixing magnetron sputtering to reduce surface energy.Fouling runs with these heaters were carried out at different heat fluxes,flow velocities and salt concentrations.The results show that heat transfer surfaces with low surface energy experienced significantly a reduced formation of CaSO4 deposit.展开更多
文摘In this paper,the formation of CaSO 4 deposit on heat transfer surface is investigated both theoretically and experimentally.The test run is performed with various treated surfaces and flow velocities. Microphotograph of deposit layer is made.The results obtained are compared with untreated surface under exactly identical conditions in order to determine the suitability and the characteristics of the various treated surface.It is found that the CaSO 4 deposit on the heat transfer surface can be reduced or even prevented by using surface modification techniques, such as dynamic mixing ion beam implantation and dynamic magnetron sputtering.
文摘In this paper the effect of magnetron sputtering with DLC (diamond like carbon), DLC-F and AC on CaSO 4 scale formation was investigated. Fouling run were carried out under flow boiling conditions. The results showed that surface sputtering with DLC et. reduces CaSO 4 scale formation significantly.
文摘This paper reports the influences of heat transfer surface properties on the formation of CaSO4 fouling deposition during flow boiling heat transfer.The surfaces of several test heaters have been treated by surface modification techniques.such as dynamic mixing ion beam implantation and dynamic mixing magnetron sputtering to reduce surface energy.Fouling runs with these heaters were carried out at different heat fluxes,flow velocities and salt concentrations.The results show that heat transfer surfaces with low surface energy experienced significantly a reduced formation of CaSO4 deposit.
