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Previous Projects P07442 P08451
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2008-2 THROUGH 2008-3
NERANJAN DHARMADASAJAMES BROWN
P09451: Thermo-Electric Module for Large Scale
Systems
Introduction
Thermoelectrics are very simple solid state devices with two basic modes of operation.
• The Peltier Effect, involves the application of current through the module, absorbing heat from one side of the device and emitting from the other side.
• Conversely, the Seebeck Effect can be used for power generation purposes. When a temperature gradient is applied across a TE module an electric current is produced.
Previous Projects
P07442
P08451
Mission Statement
The focus of this project will be to make improvements to last year's power module unit design, perform more extensive testing and address some issues that surfaces from the preliminary testing done last year. This year‘s team will develop a second generation prototype power module that would more closely simulate a power unit that might be deployed on the exhaust stream of a Dresser-Rand Vectra or other turbine. This unit may include the use of air cooling to simulate a power unit serving both as a power generator as well as a recuperator. The team will make improvements in temperature sensor locations to better monitor heat spreading and understand multidimensional conduction which is currently not accounted for in the modeling. The team will also design and implement strategies for max power tracking and the handling of module array mismatch due to differing temperature gradients.
Customer Needs
Test Stand IssuesGUI and data
processingTemperature
measurementsSwapping T.E. modulesMax point tracking
(power)Pressure lossesLack of sensors for
multidimensional heat transfer
Test Stand Improvements
More fin optionsDesign for power
requirementsDesign for specific
operating conditionsDesign for
recuperative heating system
Additional “zones”
Staffing Requirements
Team Member Responsibilities
Team LeaderNeranjan Dharmadasa
Coordinate efforts to complete project, logistics, running meetings, purchasing, resource management and assistance to other team members as required.
Chief EngineerJames Brown
Lead the engineering effort and ensure the final project goals are met by facilitating communication among team as well as carry out mechanical design.
ME-Heat Transfer This student will focus on thermal resistance modeling and heat spreader design for the TE module.
ME-Thermal Modeler This student is responsible for understanding theory behind TE modules and the thermal modeling of their resistances.
EE-Electrical System Designer This student will assist in characterization of voltage current relationships for TE modules and test systems.
Work Breakdown StructureTeam Member Week 1 Week 2 Week 3
Neranjan DharmadasaTeam Leader
Set up meeting times, assign tasks, establish team values and norms
Ensure access to necessary resources, create specifications, conduct idea generation exercises
Continue project management exercises for concept selection, arrive at final project plan
James BrownChief Engineer
Familiarize team with current test stand and issues, lay out engineering objectives
Prioritize objectives, introduce team to stakeholders, concept generation
Assist Team Leader with final project plan and team with concept selection
ME- Heat Transfer Thoroughly examine EDGE and become familiarized with the past project
Study existing test stand and work closely with Graduate Assistant, concept generation
Update team with concept discussion and make selection
ME- Thermal ModelerThoroughly examine EDGE and become familiarized with the past project
Study existing test stand and work closely with Graduate Assistant, concept generation
Update team with concept discussion and make selection
EE- Electrical Systems Designer
Thoroughly examine EDGE and become familiarized with the past project
Gain understanding of project issues and begin concept generation
Update team with concept discussion and make selection
Team Values and Norms
PunctualityOrganizedDevoted/CommittedProfessional and EthicalThorough AccurateMeet GuidelinesMeet Deliverables on Time
Required Resources
Current lab test standMachine shopTime with Graduate AssistanceTime with Faculty Guide, Dr. StevensTime with Dresser-Rand contacts
Staffing requirements will be met throughout course of project
Estimated budget will be provided
Existing test stand can be used and improved for this year’s project
Assumptions
Budget: $ 7500Technical Expertise: Familiarizing students
with TE modules and the current systemTime: All deliverables must be performed within
the allotted 22 week timeframeResources: Time required on machine shop
towards building phase of project.Obtaining TE modules that operate under higher temperatures
Platform: The project must build upon the existing module and test stand
Safety
Constraints
Intellectual Property
Project will be open source, open architecture.
Any information on Dresser-Rand products will be kept confidential
Currently established patents will be researched and taken into consideration with progress of project.
Issues and Risks
Availability of off the shelf TE modules
Delivery of parts on time
Parts exceeding budget
Data inaccessibility or loss
Outstanding Items
Deliverables over the course of the project are to be determined
Target specifications are yet to be established