Phase Change
Research on Thermal-mechanical Coupled Analysis of Launch Vehicle Cryogenic Tanks
Launch vehicle cryogenic tanks are the core of transport system of engines,from which engine energy come. On one hand,It can store liquid hydrogen and liquid oxygen. On the other hand,it also carry thermal protection system and provide installation base and space for instruments of other systems.Based on the function of a general FEM code ANSYS, [...]
Experiments on Micro Flow by Evaporative Drive on Gradient Capillary Surface
Micropump is an important branch of micro-electro-mechanical systems (MEMS) and it could find applications in the fields of environment testing, biotechnology and instrumentation for analytical chemistry. In this paper, we describe the design, fabrication, numerical simulation and experimental study of a novel micropump that delivers continuous, ultra-low flow velocities at 0-55μl/min. A gradient capillary surface [...]
Numerical Simulations of Flow and Heat Transfer of the Polymer and the Thermal Oil in the Die
Pelletizing system under water as a kind of advanced technology is extensively used in the polymer processing involving palletizing, and it is developing toward large-scale and better adaptability, finally achieves the demand of large batch and continual production. The die is an important component of the palletizing process.The fluid flow and heat transfer of the [...]
Study on the Coupling Themal-Optical Properties in Semitransparent Particle Wiht Phase Change
It is a complex multi-field coupled heat transfer process for semitransparent particle with phase change, there often accompanied by absorption and emission of radiation and swell distortion and shrinkage splinter of mechanical behavior of fracture. Which is very important to process control and optimization design in related to the field with understand and master these [...]
Research on Two-phase Heat Transfer of Nanofluids Flow Boiling in Microchannel
Microchannels were widely used in Micro-electro mechanical systems, micro-electronics, biology, and with the progress of materials, more and more new materials were introduced in the boiling heat transfer and flow experiment, such as nano-materials, making flow and heat transfer in microchannel become one of the hottest spot in science and industrial field. Many experimental data [...]
Research on the Application of Phase Change Building Materials in Architectural Energy-saving
Building materials used to build phase change building envelope can reduce the indoor temperature fluctuations, increased comfort, the building heating or air conditioning to use less or use less energy, improve energy efficiency; can solve the thermal mismatch of supply and demand contradictions, the air conditioning or heating system uses low-cost electricity at night to [...]
Numerical Investigation of Heat and Mass Transfer of Vapor Bubble in Subcooled Water with Lattice Boltzmann Method
Generally, dissolved gases in condensation water can corrode the boiler, turbine, water heating system, pipeline, valve and so forth. Specifically, oxygen gas is the most corrosive one. Therefore, deoxidizing is a key link in the water treatment process. Removing the dissolved oxygen gas in the water as much as possible is necessary in order to [...]