Steam pressure and temperature are related, and hence temperature is automatically controlled through the control of steam pressure. The reason for this is that the steam at a low pressure has higher latent heat, which increases energy efficiency to a large extent. Industrial process applications use steam at a lower pressure. In effect, distribution of steam becomes easier and cheaper due to the cost reduction in piping and insulation. High pressure steam has lower specific volume, which will allow pipes to carry less weight. However, in addition to controlling pressure, a steam control valve will also control temperature.īoilers will typically work at high pressures, as low pressure operation will result in carryover of water. In case of steam, the major applications are to reduce the pressure of the inlet steam for process application. Technically, a valve is a device which will control flow of fluid or vapor in any system. Why a Steam Control Valve is used in process control applications? However, most of the applications will require some parameter control, and thus a steam control valve becomes a part of process control engineering. Apart from these, steam is used for atomization, cleaning, moisturize, and humidification. The most common applications are the process heating and driving the steam turbines to generate electricity. Steam is used in a large number of industrial applications. Wet steam is formed when some water molecules release its’ latent heat and form tiny water droplets.
Both dry and wet steam is used in industries.
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The bond of the molecules becomes loose with application of heat, and eventually some molecules will break free at higher heat and create steam or dry steam. In the liquid form, the molecules are continuously broken and joined with each other. Hydrogen bonds keep the H 2O molecules together, and it breaks free to generate steam. Water is converted to steam during transition from liquid to gas. What is Steam and what are its principal applications? Let’s hit at the root of the subject, which is steam in this article. We will try to make this article interesting for all readers, and navigate from basics to complex technology-oriented topics. However, to confine it within a respectable size, we will focus mostly on technicalities and industrial applications of steam control valve. The wide subject matter can accommodate a lot of pages. This article is not focused to any specific aspect of steam control valve.
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