The thermal energy storage unit involves a triplex concentric tube with phase change material (PCM) filling in the middle channel.
通过数值模拟与实验，研究了三重同心套管内的相变传热过程。
An auxiliary power unit (APU) is used to charge the first battery to maintain a desired voltage across the first energy storage unit.
以及辅助动力单元，其可操作以给所述第一能量存储单元充电。
The active power factor correction(APFC) technology is introduced into the DC energy storage unit ofUPQC for capacitive voltage control.
将有源功率因数校正技术引入UPQC直流储能单元的电压控制。
The flywheel energy storage unit, which replaces the conventional chemical battery, is maintenance free, has long life and emits no pollution.
飞轮储能单元代替传统的化学电池，具有免维护、寿命长、无污染的特点。
Vanadium-bearing carbonaceous shale is a new type of vanadium ore. All-vanadium REDOX flow cell is a new energy storage unit. The battery has been developed.
含钒石煤是我国的一种新型钒矿资源，本文用从石煤中提取的V_2O_5研制全钒氧化还原电池。
To enhance the performance of UPQC, active power factor correction (APFC) technology is introduced into the DC energy storage unit of UPQC for capacitive voltage control.
为了进一步提高UPQC的性能，将有源功率因数校正(APFC)技术引入UPQC直流储能单元的直流电容电压控制，详细阐述了其工作原理，并给出了仿真实验结果。
The suggested system makes use of a single phase HFAC pulse density modulation(PDM) converter as the interface to connect energy storage unit and power source for induction motor drive system.
系统采用间接矢量控制技术，通过高频交流脉冲密度调制接口变换器，对功率进行协调控制。
Electricity from sunlight is truly "green" and inexpensive but requires an energy conversion system with photovoltaic (PV) cells and a storage unit, such as a battery.
来自于日光的电能是真正“绿色”和廉价的能源，但是需要基于光伏(PV)电池和存储设备(例如电池)的能量转换系统。
The discharge of seepage per unit width q is lower than or equal to the allowable design discharge (in consideration of storage and exploitation of water energy).
单宽渗流量小于或等于允许设计渗流量（以蓄水水能利用为原则）。
Design of the hybrid energy storage system power conversion unit circuit topology, the energy storage system of the compound of the working principle and developed a digital control strategy.
设计了复合储能系统功率变换单元电路拓扑，阐述了该复合储能系统的工作原理并制定了数字化控制策略。
The energy conversion unit of the flywheel energy storage system is described in this paper.
本文介绍了飞轮储能系统的能量转换环节。
A hot water storage tank is one of key parts of saving-energy air conditioner with domestic hot water supply. Its design is very important to be succeeded in applying this saving-energy unit.
蓄热水箱是带热水供应的节能型空调器关键设备之一，它的设计是否合理直接关系到这种节能空调器运用的成败。
A hot water storage tank is one of key parts of saving-energy air conditioner with domestic hot water supply. Its design is very important to be succeeded in applying this saving-energy unit.
蓄热水箱是带热水供应的节能型空调器关键设备之一，它的设计是否合理直接关系到这种节能空调器运用的成败。
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