P16013: Body Cooling System
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Systems Design

Table of Contents

Please refer to the Systems Level Design Documents directory for additional documents.

Team Vision for System-Level Design Phase

The Body Cooling System team planned on completing two sets of tasks during this phase: action items from the Problem Definition Design Review, and all assignments listed in the System-Level Design node. All tasks were completed as promised. See below for specific tasks.

Action Items

Systems-Level Design Tasks

Action Items from Problem Definition Design Review

The following action items were identified at the Problem Definition Design Review to be completed during the System-Level Design Phase:

Risk Management Plan - Elaborate on risks and identify a formal mitigation plan for each risk identified.

See the updated Risk Management Plan here.

House of Quality - Complete the House of Quality based on the updated Customer and Engineering Requirements.

See the updated House of Quality here.

Functional Decomposition

For the Functional Decomposition document, click here.

Benchmarking

Morphological Chart

Morphological Chart showing critical functions for the Test Apparatus

Morphological Chart

Concept Development

Concept Development using the functions identified in the morphological chart

Concept Selection

Pugh charts using each of the three potential concepts as a datum to compare the pros and cons of all concepts.

Datum: The All-in-One

Datum: The Over Achiever

Datum: The People Pleaser

The All-in-One has been selected as the preliminary concept for the final testing apparatus. Each function of the testing apparatus will be initially developed and tested separately in order to get the ID team preliminary results to meet their prototype deadlines. This will allow them to refine and iterate their designs based on the results of each individual test.

Although the Pugh chart scores for the All-in-One and the Over Achiever were similar, the All-in-One was selected based on the cost and feasibility. The Over Achiever has the potential to be very expensive as it employs a more expensive infrared thermometer as well as an expensive fabric stiffness tester. The All-in-One is also a more feasible design based on using a human as the test subject instead of creating a synthetic human model.

Since the All-in-One employs a human as the test subject, there will be a significant amount of variability. Although this has been selected as the preliminary concept, the team will still be pursuing the potential to create a synthetic human model as the test subject to allow the testing apparatus to have a higher potential for reusability.

Systems Architecture

public/architecture.PNG

Feasibility: Prototyping, Analysis, Simulation

Basic calculations were performed to determine the cooling properties of the phase change materials in contrast to water. While more models are needed, this shows that such phase change materials are feasible for use in a body cooling system.
Energy Storage capabilities of PSMs

Preliminary Designs

The All-in-One The Overachiever The People Pleaser

Risk Assessment

For the full risk management document, click here.

Design Review Materials

For the Design Review II Presentation, click here.

For notes from the Design Review II, click here.

Plans for Next Phase

Action Items from Review:

Goals for the Subsystem Design Phase:

The timeline below details these tasks in depth and allocates each task to a team member to ensure that all tasks will be completed before the next design review.

Click on the timeline below to see it larger or click here to see the Phase III timeline document.


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