steam loop

Main steam temperature system is a typical open loop stable system with large time delay, its model can be described by an equivalent First Order plus Pure Dead Time ( FOPDT) type.

火电厂主汽温系统是典型的大滞后开环稳定系统，其过程模型可以等效为常用的一阶加纯滞后形式（FOPDT）。

As the main steam temperature control with the lag, double-loop regulation scheme used to implement the use of cooling water on the main steam temperature control.

针对主蒸汽温度调节中被调对象的滞后性，双回路的调节方案用来实现利用减温水对主蒸汽温度的有效控制。

Steam generator ( SG) is one of main equipments in the pressurized water reactor ( PWR) nuclear power plant, but also it is a pivotal equipment which brings heat from reactor core to the secondary loop coolant by primary loop water.

蒸汽发生器是压水堆核动力装置中的主要设备之一，也是把一回路冷却剂从反应堆堆芯带出的热量传给二回路水的关键设备。

SCAS is the source term code to calculate steam activation products in secondary loop of reactor, which is developed by Nuclear Power Institute of China.

SCAS是中国核动力研究设计院编制的反应堆二回路蒸汽活化产物源项程序。

The loop uses high-temperature helium as the thermal source and in full scale to simulate the 30% generator load for two-phase flow stability verification test under various conditions: inlet sub-cooling degree, outlet steam pressure, flow rate and inlet resistance.

实验系统用高温氦气作为热源，采用1∶1全尺寸模拟，进行了30%负荷工况两相流稳定性验证实验、入口过冷度、蒸汽出口压力、流量及入口阻力对两相流稳定性影响的研究。

The steam engine is an unthinkable contraption without the domesticating loop of the revolving governor.

要是没有那个安安分分转动着的调控器所构成的主控回路,蒸汽机根本就是不可想象的装置.

Flow characteristics experimental study within connection between steam generator channel head and pump suction has been done by air test without nozzle dams and water loop test with them respectively.

因此对蒸汽发生器下封头/主泵连接处的流动特性进行了试验研究，进行了无挡板的风洞试验和有档板的水回路试验。

The steam-water two-phase flow instability in vertical parallel pipes was studied experimentally in the high pressure steam-water test loop.

在高压汽水回路上对垂直并联管中汽液两相流不稳定性进行了试验研究。