Abstract: A method and system for predicting heat exchanger performance, an electronic device and a storage medium are provided. The method comprises: acquiring a flow unit of the heat exchanger and constructing a physical model of the flow unit according to structural parameters of the heat exchanger; constructing a coupled model of an interphase transfer mechanism for oil-gas-water three-phase flow using computational fluid dynamics according to the physical model; constructing a fully coupled population balance model for flow and heat transfer of oil-gas-water three-phase flow; solving the fully coupled population balance model to obtain a model calculation result and determining a Nusselt number and a Fanning friction factor; and determining a comprehensive heat transfer factor, wherein the comprehensive heat transfer factor is used to evaluate heat transfer performance of the heat exchanger.

Abstract: Disclosed is an energy-saving and environment-friendly device for a communication system equipment, the device includes: a thermoelectric conversion module, arranged on a surface of or in proximity to a high-power module of the communication system equipment, configured to convert thermal energy of the high-power module into electric energy; and an electric power storage device, connected directly to the thermoelectric conversion module or connected thereto via a switch, configured to be charged using electric energy supplied by the thermoelectric conversion module.

Abstract: The disclosure relates to an automatic gain adjustment and control method and device for eliminating the interference between the GSM and the LTE in the MSR receiver. The method comprises: in an MSP receiver, an upper threshold and a lower threshold which are used for starting up gain control function are set; the ADC power of an ADC of the MSP receiver is detected when LTE OFDM starts; the detected ADC power is compared with the upper threshold and the lower threshold respectively; and based on that the comparison result is that the ADC power is larger than the upper threshold or is smaller than the lower threshold, the gain control function of the MSP receiver is started up, and otherwise, the gain control function of the MSP receiver is not started up. The disclosure can control the LTE and GSM signal power within a certain range.

Abstract: The disclosure relates to an automatic gain adjustment and control method and device for eliminating the interference between the GSM and the LTE in the MSR receiver. The method comprises: in an MSP receiver, an upper threshold and a lower threshold which are used for starting up gain control function are set; the ADC power of an ADC of the MSP receiver is detected when LTE OFMD starts; the detected ADC power is compared with the upper threshold and the lower threshold respectively; and based on that the comparison result is that the ADC power is larger than the upper threshold or is smaller than the lower threshold, the gain control function of the MSP receiver is started up, and otherwise, the gain control function of the MSP receiver is not started up. The disclosure can control the LTE and GSM signal power within a certain range.

Abstract: Disclosed is an energy-saving and environment-friendly device for a communication system equipment, the device includes: a thermoelectric conversion module, arranged on a surface of or in proximity to a high-power module of the communication system equipment, configured to convert thermal energy of the high-power module into electric energy; and an electric power storage device, connected directly to the thermoelectric conversion module or connected thereto via a switch, configured to be charged using electric energy supplied by the thermoelectric conversion module.