secondary coolant 中文意思是什麼
secondary coolant
解釋
二次冷卻劑-
Presents the steady - state programming with constant coolant average temperature and constant live steam pressure, an ideal programming for marine nuclear power plant ( npp ), under which, both the coolant average temperature and the live steam pressure of nuclear steam supply system ( nsss ) are constant when the steady state operating condition is varied, and points out that in comparison with the steadysate programming with constant coolant average temperature, the ideal programming can improve the overall operating performance of npp effectively, especially in low - load range, for instance, raise the heat efficiency of npp, decrease the operating noise of main coolant pump, and improve the conditions of design, operation and control of the secondary loop system
雙恆定運行方案是船用壓水堆核動力裝置的理想運行方案.在這種運行方案下，當裝置穩態功率變化時，冷卻劑平均溫度與蒸汽壓都保持不變，與通常採用的冷卻劑平均溫度恆定運行方案相比，有效地改善了核動力裝置的總體運行性能，特別是在低負荷運行時，可以提高裝置經濟性、降低主泵運行噪聲、改善二迴路系統的設計、運行和控制條件，這對于提高船用核動力裝置的運行可靠性和安全性具有實際意義 -
These measurements are complemented by measurements of the flow field downstream of the cascade. the integrated losses and locations of secondary flow features with and without endwall film - cooling are determined for variations of both coolant supply pressure and injection location
以無端壁氣膜冷卻和有端壁氣膜冷卻兩種情況進行研究，對比地獲得了兩者的綜合損耗和二次流特徵區域隨冷卻氣體供給壓力和注射位置的變化規律。 -
Measured hole mass flows and a constant static pressure mixing analysis, together with the measured losses, allowed the decomposition of the losses into three distinct entropy generation mechanisms : loss generation within the hole, loss generation due to the mixing of the coolant with the mainstream, and change in secondary loss generation in the " blade passage
論文還進行了葉片冷卻孔質量流的測量與常靜壓氣流混合分析，結合前述氣動力損失和冷卻空氣損耗的測量結果表明，端壁氣膜冷卻的綜合損失明顯地由三個部分組成：葉片冷卻孔內產生的損失；由於冷卻空氣與主流熱空氣的混合產生的損失；二次流的變化產生的損失。 -
For the indirect cooling method, glycol liquid as the secondary coolant is cooled in the refrigerating unit, pumped to the cooler in the house to cool the air. the cooling load is regulated by changing the flowrate of the glycol liquid
乙二醇間接製冷方式是通過低溫鹽水機組將乙二醇降到一定溫度，通過循環泵將乙二醇溶液供到需要製冷的氣調庫內換熱器中，再由換熱器對庫內環境進行製冷。 -
Results from this investigation show that the loss generation within the coolant holes is substantial and that ejection into regions of low static pressure increases the loss per unit coolant mass flow. the results also reveal strong interactions between endwall coolant ejection and secondary flow in the blade passage. the secondary flow has a strong influence on coolant trajectories and coolant ejection delays the three - dimensional separation of the inlet boundary layer on the endwall, chang the secondary flow and reduces its associated losses
本文的研究成果顯示，冷卻孔內產生的損失是主要的，並且低靜壓區域的冷空氣噴射會增加單位冷空氣質量流的消耗；噴射的冷空氣與葉柵端壁流場之間有強烈的相互作用；二次流對冷卻空氣的流動軌跡有較強的影響；冷空氣噴射能延緩端壁入口邊界層的三維分離、改變二次流從而減少其相關損耗。
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