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Through the finite element software of abaqus to analyze composite foundation raft of the concrete placement temperature field. Compared the analysis results by the simulate results and the actual results. The analysis results indicate that the finite element model have been established by can simulate the actual concrete temperature field very well. The analysis results show that for the small thickness...
A low-grade heat power generation system with an ejector (LGHPGE) was proposed based on the conventional Rankine power generation system (RPGS) to increase the low-grade heat source (LGHS) power generation capacity and improve energy efficiency in this paper. In the LGHPGE, an ejector and a second-stage steam generator were added to the RPGS. By the ejector, the turbine backpressure could be reduced,...
A system of Solar-Ground Coupled Heat Pump with Energy Storage (SGCHPES) was built with space heating, air conditioning and hot water. The energy storage comprised Seasonal Storage in soil and Phase Change Heat Storage in the SGCHPES system. The operation modes of the SGCHPES system and the energy use in solar and ground energy were obtained in different seasons and different operation modes. Based...
Aimed at solving the problems of complicated external environment and impossible continuous automatic measurement in the observation of highway sub grade temperature fields in cold areas, an observation system of temperature is assembled with DS18B20 temperature sensor, STC89C58 single chip, DS12C887 clock and AT24C256 external memorizer, which is powered by lithium batteries. Automatically collecting,...
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