06.2021.269.280

Experimental Study of The Effects of Vibration Induced By Water Flow in Spiral Pipe

Author(s):

Dhia A. Alazawi†, Marwa R. Mohammad†*, Abdulrahman Th. Mohammad‡

Affiliation(s):

† Mechanical Engineering Department, Engineering collage, Diyala University- Diyala –Iraq
‡ Renewable Energy Department, Baqubah Technical Institute, Middle Technical University (MTU)-Baghdad- Iraq.

Corresponding Author Email:  mmohmerowa@gmail.com

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

This paper attempts to study the effect of induced vibration by water flow in a spiral pipe. The fluid-induced vibration caused by fluid temperature and mass flow rate has been studied experimentally. A copper tube with a 10 mm inner diameter and a length of 15 meters was used to make the spiral pipe. Water flow rates of 4 to 7 LPM and fluid temperatures of 45 to 65 oC were used in the experiments. The experimental result showed that, frequency and normal frequency of spiral pipe vibration were influenced by fluid temperature and mass flow rate. The frequency of vibrations has increased to its maximum value 2.989 Hz as the temperature rises to be 65 oC. This has been explained due to the higher kinetic energy of higher temperature flows.