Abstract: Steam quality is very important but many times unrecognized as a detriment in a steam system. This chapter reviews the importance of steam quality and the design and operational practices that influence steam quality. Wet, dry, clean, and pure steam concepts are defined. Poor steam quality can result in four consequences: product contamination, poor heat transfer, damage system equipment, and overtaxation of boiler feed equipment. There are four major design/operational conditions that affect steam quality: boiler design, steam system pressure management, drip leg efficiency, and water chemistry influence. To produce high-quality steam, all of these conditions must be properly controlled. Measuring steam quality accurately is not easy. There are sophisticated measuring systems that do measure steam purity; however, their practical use is limited to a laboratory setting. Some steam applications, such as steam turbines, may require superheated steam.
Publication Year: 2015
Publication Date: 2015-09-25
Language: en
Type: other
Indexed In: ['crossref']
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