Instant knowledge: The boiler house
This information is intended to give a brief, non-technical overview of the steam plant. It offers an overall explanation of how the different parts of the steam plant relate to each other — and represents useful reading for anyone who is unfamiliar with the topic, prior to progressing to the next level, or indeed, before taking any form of detailed study of steam theory of steam plant equipment.
The boiler house
The boiler is the heart of the steam system. The typical modern packaged boiler is powered by a burner which sends heat into the boiler tubes.
The hot gases from the burner pass backwards and forwards up to three times through a series of tubes to gain the maximum transfer of heat through the tube surface to the surrounding boiler water. Once the water reaches saturation temperature (the temperature at which it will boil at the pressure) steam bubbles are produced, which rise to the water surface and burst, causing vaporization. The steam is released into the space above, ready to enter the steam system. The stop or crown valve isolates the boiler and its steam pressure from the process or plant.
Content provided by Spirax Sarco, originally published in Steam News Magazine.
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2012 Salary Survey
In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.
Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.