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Transformers are set underground and embedded in pit for a long time, so heat problem is very prominent. In this paper, the DGSR11-H-315/10 transformer was directly buried in pit, heat transfer models of embedding system (including embedding transformer, pit flow and soil medium) were established, and the numerical simulation was conducted for temperature and flow-field distribution. Comparison of...
In order to achieve the real-time calculation of cable core temperature, according to principles of heat transfer, proposed is the way of calculating cable core temperature based on the actual operating current and the cable surface temperature. This paper studies the dynamic response of cable core temperature based on the core temperature. Changes of actual running currents result in dynamic response...
Aim at the weakness of more influenced by the environment etc. factor and the heat flow density lower when the solar energy was make use of heating, so the design method of the hybrid solar energy and ground-source heat pump is proposed, and the operating principle of this system has been studied. Thermal calculating methods of the solar energy collector and the ground-source heat pump was presented...
High temperature ground source heat pump systems can be used to replace traditional oil or gas burning furnaces to heat output crude oil in oil transit, and can achieve better the effects of saving energy and reducing emissions. An experimental system of replaced the water jacket heater by the high temperature ground source heat pump system in a transit station of the oil field is introduced in this...
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