On Roots' Mine Ventilator, and other Applications of Roots' Blower

Analysis of Flow Through Roots Blower Systems

Kinematic analysis of a Roots blower with involute flanks and circular root and tip sections is explained. The thermo-fluid model for the blower is described. Two mathematical models have been used to model the blower and its piping system. In the first model flow is assumed steady in the pipes,whereas in the second the unsteady flow in the pipes is taken into consideration. Leakage from the pr...

An Investigation of the Volumetric. Efficiency of a Roots Blower

A Substitute of Roots Blower - Monotooth Rotary Compressor

Having builtin compression process, monotooth rotary compressor can reach larger discharge pressure with higher efficiency and lower discharge temperature when compared with Roots blower. So it is a good alternative for Roots blower used in various fields. In order to put this kind of compressor into market as soon as possible, theoretical and experimental study of the monotooth rotary compress...

Electric Blower Based Portable Ventilator

When a patient is unable to breathe or maintain their airway they will most likely be ventilated by a bag-valve-mask. We propose to replace the traditional bag-valve-mask with an electric blower ventilator. This handheld feedback controlled device will automatically compensate for mask leak and enable the clinician to deliver computer controlled respiratory rates and tidal volumes. We have buil...

Rational and Religious Roots of Peaceful Coexistence with the Religious Other

In this article, rational arguments and religious teachings that underlie the necessity of peaceful coexistence with the followers of other religions will be discussed. Moreover, the core impediments to coexistence, such as lacking self-knowledge and being ignorant about the others, will be examined, and practical ways for effectively interacting with the followers of other religions will be su...