Experimental Flow Loop

Overview

The sponsor presented the problem of flow loops that lack the ability to change flow parameters without outside input and that lack the ability to maintain set parameters over time to the team. Challenges corresponding to this problem are that multiple automation systems will need to interface with one another as well as regulate one another. In addition, each component must be engineered to have the capability to be automated.

Objectives

The team objective for this project was to automate a flow loop that incorporates a feedback system to adjust to changes in pressure within the loop that models the human heart. To achieve this, the team designed and built a flow loop that contains components likened to the features of the cardiovascular system.

Approach

– Customer needs were gathered during the kickoff meeting with the sponsor.

– Concept generation and selection occurred in the form of individual and group brainstorming and sketching early in the project, with consideration to weighting of importance.

– Existing patents and products were found to be scarce since the automated flow loop is a novel concept.

– Data and advice were periodically collected from the sponsor throughout the project timeline.

– CAD models were created to design certain components of the flow loop, such as the Servo motor mounts and the compliance chamber.

– CAD models were 3D printed, and a full flow loop prototype was assembled.

– Testing was performed through LabView and an oscilloscope to analyze pressure readings in the flow.

– Results and readings were compared to physiological values, specifically in the heart, and found to be comparable.

– With future work, the results can be further expanded upon.

Outcomes

The project resulted in a novel way to control flow loops through automation that are typically controlled manually. With this design, the flow loop can be adapted with a few quick adjustments in a connecting program like LabView.