Influence of Rotation Speed and Air Pressure on the Down the Hole Drilling Velocity for Borehole Heat Exchanger Installation

Influence of Rotation Speed and Air Pressure on the Down the Hole Drilling Velocity for Borehole Heat Exchanger Installation

The relation between rotation speed, air pressure and the velocity of air-rotary drilling using the down the hole method is determined in an empirical manner. For the study, velocity measurements are obtained for combinations of the aforementioned parameters during fieldwork for the installation of...

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Bibliographic Details
Main Authors: Tomasz Sliwa, Kinga Jarosz, Marc A. Rosen, Anna Sojczyńska, Aneta Sapińska-Śliwa, Andrzej Gonet, Karolina Fąfera, Tomasz Kowalski, Martyna Ciepielowska
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:Energies
Subjects:
down the hole
borehole heat exchangers
drilling velocity
Online Access:https://www.mdpi.com/1996-1073/13/11/2716

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