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Influence of working condition on properties of superheater steel pipe (ASTM grade P11)
Investigation of the superheater steel pipe must be considered in order to predict their remnant life of the steel in the thermal power plant. The lifetime is thought to mainly depend on working condition of high temperature and pressure of the steam. To understand the workability of the steel, this paper studied mechanical properties and microstructure changes with time of the pipeline steel (ASTM grade P11) working on the high temperature...
8 p hcmute 06/06/2019 429 1
Từ khóa: superheater steel, mechanical properties, microstructure, ferrite.
Experiments on Expansion and Superheat Processes of a Co 2 Cycle Using Microchannel Evaporator
Experiments on expansion and superheat processes of a transcritical CO2 air conditioning system were done. In this study, the cross-sectional area of the expansion valve reduces from 8.195 to 0.091mm2, the cooler pressure increases and the evaporator pressure decreases; the pressure difference between cooler and evaporator increases. Besides, the power input of compressor increases as decreasing the crosssectional area.It is also observed that...
25 p hcmute 01/06/2018 531 2
Từ khóa: Experiment, CO 2 refrigerant, expansion, superheat, evaporator, microchannel
Experiments on expansion and superheat processes of a CO2 cycle using microchannel evaporator
Experiments on expansion and superheat processes of a transcritical CO2 air conditioning system were done. In this study, the cross-sectional area of the expansion valve reduces from 8.195 to 0.091 mm2, the cooler pressure increases and the evaporator pressure decreases; the pressure difference between cooler and evaporator increases
25 p hcmute 16/05/2018 395 1
Từ khóa: Experiment, CO refrigerant, expansion, superheat, evaporator, microchannel
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