Leadership

CHIMNEYS FOR WATER-WORKS STATIONS.

Issue 7 and Volume 1887 1.

CHIMNEYS FOR WATER-WORKS STATIONS. THE chimneys causing the draft for boilers of pumping engine stations are usually of brick, and most frequently square or rectangular in shape. The important point in the design of these chimneys is to have proper flue area and proper height, so that the draft will be sufficient without the temperature of the escaping gases having to exceed 400 degrees Fahrenheit, while the chimney proportions should not be in excess of those required to secure this result. A higher temperature of the escaping gases means a waste of fuel, while a larger chimney than necessary means undoubted extravagance in first cost of plant The following table, presented by Wm. M. Kent, M. K, in a recent volume of the transactions of the American Society of Mechanical Engineers, gives the proper dimensions of chimneys for steam boilers of various horse power, representing approved American practice, and securing…

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