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首页> 外文期刊>International Journal of Heat and Mass Transfer >Temperature profile in countercurrent/cocurrent spray towers
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Temperature profile in countercurrent/cocurrent spray towers

机译：逆流/并流喷雾塔的温度曲线

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摘要

The classical theory of the cooling tower does not include a suitable mathematical solution for a direct and quick calculation of gas/liquid temperature profiles. This forces in most of practical cases, for example in case of industrial spray absorbers, to simplify the problem and to assume a complete cooling of exit gases down to the adiabatic saturation temperature of the incoming gases. In the present paper, a new method is described to develop an acceptable mathematical solution fOr cooling towers, taking into account the main influencing parameters, especially the liquid to gas ratio (L/G) and the actual liquid and gas interface. Calculations with the new solution show, that the exit gas temperature is strongly influenced by the liquid inlet temperature. In case of closed loop and counter current systems, this liquid inlet temperature is more or less close to the adiabatic saturation temperature of the incoming gases. In these cases, the exit gas temperature is only slightly higher than the currently assumed adiabatic saturation temperature of the inlet gases. This is completely different to the open loop systems, where the liquid inlet temperature is not influenced by the incoming gases at all. In these cases, the gas outlet temperature is mostly far from the adiabatic saturation temperature of the inlet gases, so that the current assumption can initiate great errors.
机译：冷却塔的经典理论不包括用于直接和快速计算气/液温度曲线的合适数学解决方案。在大多数实际情况下，例如在工业喷雾吸收器的情况下，这迫使简化该问题并假设出口气体完全冷却到进入气体的绝热饱和温度。在本文中，描述了一种新方法来开发冷却塔可接受的数学解决方案，同时考虑到主要影响参数，尤其是液/气比（L / G）和实际的液-气界面。用新解决方案进行的计算表明，出口气体温度受液体入口温度的强烈影响。在闭环和逆流系统的情况下，该液体入口温度或多或少接近进入气体的绝热饱和温度。在这些情况下，出口气体温度仅略高于当前假定的入口气体绝热饱和温度。这与开环系统完全不同，在开环系统中，液体入口温度完全不受传入气体的影响。在这些情况下，气体出口温度大多远离入口气体的绝热饱和温度，因此当前假设可能会引发很大的误差。

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