off-design conditions
英 [ɒf dɪˈzaɪn kənˈdɪʃnz]
美 [ɔːf dɪˈzaɪn kənˈdɪʃnz]
【化】超出设计条件，超出设计规定的条件
双语例句
- Influence of Gas Turbine Off-design Operating Conditions on the Performance of an IGCC ( Integrated Gasification Combined Cycle) System
燃气轮机变工况对IGCC系统性能的影响 - Double-volute is an important case form employed to balance radial thrust caused by centrifugal impellers under off-design operating conditions.
双蜗壳作为一种用以平衡离心叶轮在非设计工况下运行时产生的径向力的压水室形式，阐述了其重要性； - Method for Predicting the Off-design Performance of Axial Turbines under Low Speed Conditions
小转速工况下轴流涡轮非设计性能预测方法 - It is of great significance to study operating performance and exhaust flow characteristic under off-design conditions of condenser system for the economic operation of direct air-cooled units.
研究直接空冷系统变工况运行以及排汽活动特性，对于进步直接空冷机组运行水平具有重要意义。 - Calculations of Off-design Conditions and Exhaust Flow Characteristics for Direct Air-cooled Condenser Units
直接空冷机组的变工况计算及排汽流动特性 - Practical operation has shown that the above-cited model plays a key role in enhancing the measurement precision during operations under off-design conditions.
经实际运行表明，建立的模型在变工况运行时，能有效地提高测量精度。 - Flow field around intake of impeller under off-design conditions and its control
非设计工况下叶轮进口附近的流动及其控制 - The off-design steam flow and heat transfer behaviours of a 300 MW power plant condenser operating with either all or one half cooling water tubes at half-load conditions are numerically analysed and compared.
采用数值模拟方法计算与比较了一台300MW汽轮机对分式凝汽器在半负荷工况时冷却水管全部工作和一半冷却水管投入工作两种运行方式下的汽相流动与传热特性。 - The gain in2-D or3-D design conditions and off-design conditions is also discussed.
分别讨论了二维和三维情况，设计和非设计状态时的效益。 - The present paper gives a RSM-based robust airfoil optimization method which prevents severe degradation in the off-design performance by minimizing the mean and the variance of the drag coefficient over the range of operating conditions.
本文应用响应面模型，通过减小翼型在不确定因素变化范围内阻力系数的均值和方差，构建了一个有效的翼型稳健设计的方法。 - By using the steam turbine models to deal with the off-design performance, the heat balance of the steam system can be modelled for various operation conditions.
在部件模型部分叙述了汽轮机的模型，它是变工况性能模型，不仅可提高蒸汽系统热平衡计算的精度，且使编制的软件能用于生产工况变化后蒸汽系统的热平衡。 - The mechanism of vacillating combustion is being elucidated in brief. The combustion instability under design and off-design conditions is calculated and analyzed by way of analyzing the flow field of the staged combustion chamber at low and at full load with the help of linear analyzing methods.
简要阐述了发生振荡燃烧的机理，并且用线性分析方法对某分级燃烧室在低负荷和满负荷两种工况下的流场，以及设计工况和非设计工况下的燃烧特性进行了分析。 - The turbulent viscosity is calculated using the two-layer Baldwin-Lomax algebraic turbulence model. Detailed computations were carried out for a five stage high-pressure compressor configuration for design and off-design conditions at 100%, 90% and 80% corrected speeds.
对一台五级高压压气机进行了详细的流场数值计算，包括了设计转速的100%，90%及80%等多个转速及各种工作状态。 - Calculations of the compressor performance under all operating conditions indicate that without a decrease in flow rate and pressure ratio the blade profile after the optimization will undergo a performance improvement under both design and off-design operating conditions.
对压气机全工况性能的计算表明，在流量和压比不减少的情况下，优化后的叶型设计工况和非设计工况性能均得到了改善。 - The system under discussion is suited for the naval steam turbine verification calculation and performance analysis for off-design conditions.
该体系适用于舰用汽轮机的校核计算和变工况性能分析。 - Experimental investigation has been carried out on wide forward curved blade, slender forward curved blade and straight blade at off-design conditions in this paper.
对低速轴流风机中前弯宽叶片、前弯窄叶片和常规直叶片的变工况性能进行了实验研究，并详细测量了叶片进出口截面上特征参数沿叶高的分布。 - Under off-design operating conditions, shifting of the flame's axial position and its heat release may also influence the system's stability.
在非设计工况下运行时，火焰的轴向位置和燃烧放热的变化也对系统稳定性产生影响。 - 8D large-sized centrifugal fan was conducted in three respects: outlet throttle regulation, flow-guide regulation and variable speed regulation. Noise characteristic curves under off-design conditions were obtained.
8D大型离心式风机分别进行了出口节流调节、导流器调节和变速调节3种方式下的噪声特性实验研究，得到了变工况下的噪声特性曲线。 - A minimum difference of head loss curves between design and off-design conditions appears in the vicinity of the best efficiency point of the pump.
在水泵最高效率点附近，设计工况与设计工况下水力损失的差值有最小值。 - Calculation and analysis of operational target values for supercritical steam turbines under off-design conditions
超临界汽轮机组变工况下运行参数目标值的计算分析 - Numerical simulation of the aerodynamic performance of a single-stage turbine at off-design working conditions
透平级非设计工况气动性能的数值模拟 - Especially in the condition of off-design conditions, the flow characteristics in high expansion ratio transonic turbine are greatly different from subsonic turbine.
尤其是在变工况的条件下，跨音速高膨胀比涡轮的流动特性与亚音速涡轮差异更大。 - Centrifugal pump with double volute can balance radial force effectively under off-design operating conditions, but the flow passage is narrow and difficult to cast.
离心泵在偏离设计点工作时会产生很大的径向力，双蜗壳结构虽然能有效地平衡径向力，但其流道狭长，铸造困难。 - The peak values of pressure fluctuation have not high frequency in the volute. ( 2) On off-design operating conditions, jet-wake occurs at the impeller outlet. In greater flow conditions, the jet-wake area is larger.
在非设计工况下，叶轮流道的出口处出现射流一尾迹现象，且随着流量的增加射流-尾迹区域越来越大。 - By analysing the static blade flow field parameters and flow field distribution under the design condition and off-design conditions, it promotes the detailed research of static blade aerodynamic performance.
分析了设计工况与非设计工况下静叶流场参数与流场分布云图，对静叶的气动性能开展了细致的研究，为静子扇形叶栅风洞实验奠定了数值基础。 - The performance of the gas turbine at designed working condition and off-design working conditions are simulated with these three models.
采用三种模型对其设计工况和变工况性能进行了模拟。