![]() ![]() ![]() The result will likely be failed anchors, a buckled pipe or both.įigure 1. The anchors will prevent the pipe from expanding during the temperature rise. If the pipe is now anchored at both ends and subjected to the same conditions, the stresses in the pipe will significantly increase. ![]() Assuming the pipe is properly supported along its length, the stresses will remain well below the yield point of the steel. If the pipe is installed at an ambient temperature of 70 deg F, and the temperature of the pipe increases to 270 deg F, we can expect about 1.5 in of expansion in the 100 ft unanchored run. The expansion of the pipe from equation (2) is: The temperature is increased to 200 deg F above ambient. The pipe is empty, and the inside is at atmospheric pressure. If the object is a straight bar or pipe, the more familiar form of this equation is:Ĭonsider a 6 in diameter steel (ASTM A53) pipe, 100 ft long, anchored at one end. ![]()
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