isentropic efficiency
英
美 [ˌaɪzənˈtrɑpək ɪˈfɪʃnsi]
n. 等熵效率
双语例句
- And the isentropic efficiency and the total pressure ratio decrease with increasing the scales of the tip clearance.
随着叶尖间隙的增加，峰值等熵效率一直降低。 - Based on the principle that entropy do not change in isentropic process, this paper presents a precise method to calculate isentropic process periodic work of compressors, and advances the calculation precision of compressor efficiency.
本文根据等熵过程始态、终态熵相等的原则，提出了一个计算往复活塞压缩机等熵过程理论循环功的精确计算方法，应用该方法可以提高压缩机效率的计算精度。 - A Discussion on Isentropic Efficiency of Expansion Machine
膨胀机等熵效率探讨 - The influence of liquid quantity carried out from the exit of expansion machine upon its isentropic efficiency is emphatically discussed in this paper.
本文重点探讨了膨胀机出口带液量对其等熵效率的影响。 - Un steady calculation results show that the regularity is almost the same, and isentropic efficiency is 1% higher than steady calculation result.
非定常计算条件下，效率比定常计算高出1%左右，并且叶顶间隙与气封间隙同时增大1%叶高时，效率下降约1%，与定常计算的规律相同。 - A transonic turbine twist blade was optimized for the maximization of the isentropic efficiency with 18 design variables in total using the present design methodology.
利用该算法，以等熵效率最高为目标，在满足流量约束的条件下对跨音速扭叶片进行了气动优化设计。 - An appropriate front lean angle increases the range of a centrifugal compressor, improves the flow and enhances the isentropic efficiency.
合适的前倾角有利于扩大压气机工作范围，能够改善流道内的流动，提高等熵效率。 - RJE can continuously operate in the low rotary velocity ( between 2000 and 4000 r.p.m) of the distributor and high isentropic efficiency ( more than 60%) as long as its combination dimensions are 'Optimum.
并指出：适当选择机组有关配合尺寸，可使其在低分配器转速（2000&4000r.p.m）、高等熵效率（>60%）的最佳工况连续运行。 - With test study of the experimental refrigerator, it is found several peak values appear on the isentropic efficiency when the rotary speed of gas distributor changes. The optimal rotary speed can be determined by experiments.
通过对模型机的实验研究可知：气体分配器转速变化时，等熵效率出现多个峰值点，由实验可确定最佳转速； - The optimal relations between power and isentropic temperature ratio exponent, and between efficiency and isentropic temperature ratio expo-nent are derived, by which the optimal relation curve between power and efficiency can be obtained.
导出最佳效率时的功率与等熵温比指数、效率与等熵温比指数的关系式，以及最佳面积比，进而得到最佳效率与功率关系。 - Besides, COP of the system is more sensitive to changes of the inlet isentropic efficiency. ( 2) There are two types of throttling losses in traditional dual-temperature vapor compression refrigeration system, that is, expansion valve throttling losses and pressure regulating valve throttling losses.
传统双温蒸汽压缩制冷系统存在两类节流损失，即膨胀阀产生的节流损失和压力调节阀产生的节流损失。 - At the same expansion ratio, the oscillation frequency of jet flow increases with the increasing inlet pressure, so does the size range of oscillation. ( 3) Effects on the oscillation frequency and the isentropic refrigeration efficiency of jet flow are studied.
膨胀比相同时，射流的振荡频率随入口压力的增大而增大，可振荡尺寸范围也增大。 - Aggregated Thermal Dissipation Gas Wave Refrigerator ( AWR) is a new innovational Gas Wave Refrigerator ( GWR). It has the advantage of simple and compact structure, low manufacturing cost, high isentropic refrigeration efficiency and high ability of operation with liquid.
外循环耗散式气波制冷机属于新型气波制冷机，具有结构简单、紧凑，制造成本低廉，等熵制冷效率较高，带液运行能力强等优点。 - Pressure amplitude in the controlling tube and the oscillating tube increases with the increasing expansion ratio. Therefore the isentropic refrigeration efficiency of gas wave refrigerator increases gradually.
控制管和振荡管内的波幅随着膨胀比的增加均增大，因此气波机的等熵制冷效率逐渐增大。 - And the turbulence model is determined then the non-steady characteristics of turbine are calculated. The results show that in a pulsed cycle turbine flow mass and isentropic efficiency relative to the expansion ratio change into "ring-like" which is typical.
确定了计算所用到的湍流模型之后进行了涡轮非稳态特性计算得到了在一个脉冲周期内涡轮的流量、等熵效率相对于膨胀比的变化都成圈状的典型的涡轮的非稳态特性。 - The influence rules of the roughness at different region are explored from the aspects of isentropic efficiency, total pressure ratio, shock wave location and wake loss.
然后从叶片等熵效率、总压比、激波位置、尾迹损失等方面分析了叶片表面不同位置粗糙度的影响规律。