air demand

A mathematical model for air demand in non-pressure flood release tunnel flow

明流泄水洞通气量的数学模型

The equation of air demand was derived from the theory of oxygen transfer in aeration.

根据曝气过程中氧转移的有关理论，推导出需气量的表达式；

In this paper, a mathematical model for calculating the air demand of the aerator is established, and the target mathematical function for optimizing the shape of the aerator is proposed.

建立了计算掺气设施水力特性的数学模型和挑坎掺气槽坎高的优化目标函数，对原型掺气槽的体型优化进行了研究。

Calculations of Theoretical Combustion Air Demand and Steam Vapour Amount in Flue-gas of Coal-fired Boiler

水蒸气精馏锅炉燃煤所需理论空气量和烟气中水蒸气量的计算

Automatically adapt to fluctuating air demand and save you a lot of energy.

自动适应高峰低峰用气，大量节能。

This paper introduces the calculating formulas and their derivation process for theoretical combustion air demand and steam vapour content in flue-gas. The author believes that the calculated steam vapour content in flue-gas based on moisture in total air amount is more realistic and in higher accuracy.

介绍了锅炉燃煤所需理论空气量和烟气中水蒸气量的计算公式及推导过程，认为按总空气量的水分计算，烟气中的水蒸气更符合实际，精度高。

A study of prototype law of air demand in flood control conduits

泄洪管道需气量原型规律的研究

Increasing air traffic demand has added to the problem.

航空交通需求日增，使问题百上加斤。

When determining air demand for tunnel ventilation, the air demand is taken from the bigger one between calculation of CO concentration index and smog concentration index.

隧道通风需风量的确定是取CO浓度指标和烟雾指标计算出来的较大者作为需风量。