Power Control System for a Concrete Durability Test Cabinet – Phase 2 Jacob Jameson Madhav...
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![Page 1: Power Control System for a Concrete Durability Test Cabinet – Phase 2 Jacob Jameson Madhav Kothapalli Thomas Persinger Andrew Versluys.](https://reader030.fdocuments.net/reader030/viewer/2022032705/56649db15503460f94aa053f/html5/thumbnails/1.jpg)
Power Control System for a Power Control System for a Concrete Durability Test Concrete Durability Test Cabinet – Phase 2 Cabinet – Phase 2
Jacob Jameson
Madhav Kothapalli
Thomas Persinger
Andrew Versluys
![Page 2: Power Control System for a Concrete Durability Test Cabinet – Phase 2 Jacob Jameson Madhav Kothapalli Thomas Persinger Andrew Versluys.](https://reader030.fdocuments.net/reader030/viewer/2022032705/56649db15503460f94aa053f/html5/thumbnails/2.jpg)
Problem StatementProblem Statement
The National Concrete Pavement Technology Center needs a system to perform temperature tests on concrete samples.◦ The temperature test consists of 300 cycles between
0º and 40º F (±3ºF error).◦ The client wants the system to be monitored and
controlled with LabVIEW.◦ There is existing hardware and software in place, but
it does not achieve consistent results.
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Need StatementNeed Statement
We need to fix the existing system to run the tests consistently.◦ Clean up the temperature sensors◦ Re-write the software
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Concept Sketch – Test Concept Sketch – Test CabinetCabinet
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Concept Sketch – Concept Sketch – Temperature Chart RecorderTemperature Chart Recorder
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Concept Sketch – User Concept Sketch – User InterfaceInterface
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System DescriptionSystem Description LabVIEW Program
◦ In local computer
◦ Accessible by remote desktop
◦ Sends commands to temperature controller.
Temperature Sensors ◦ Old system analog thermostat
◦ High temperature shut-off
◦ Circle graph recorder.
◦ New system thermocouple measuring the internal temperature of the concrete specimens within the cabinet.
System Processes
◦ Measured temperature approaches 0º, System activates a relay that shuts off the compressor and turns on the heater.
◦ Measured temperature approaches 40º, System activates a relay that shuts off the heater and turns on the compressor.
◦ Cycle continues until the user ends it.
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System Block DiagramSystem Block Diagram
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Operating EnvironmentOperating Environment
The system will operate in an indoor laboratory.
This lab works with concrete so there is a chance of dust getting into the system.
Water is poured into the system before running the freeze/thaw test, so the system must be sealed.
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User InterfaceUser Interface Records the data from the tests
Allows the user to analyze data in
graphical form
Allows the user to change the freeze-thaw controls manually
Accessible by remote desktop
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Functional RequirementsFunctional Requirements The freezing-thawing apparatus shall have automatic
controls which are able to continuously reproduce cycles from 0±3°F to 40±3°F.
The heat-cool cycle shall take between 2-5 hours.
The time between freezing and thawing phases shall not exceed 10 minutes.
The new system shall operate completely separate from the old system.
All of the temperature data shall be recorded to an Excel spreadsheet.
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Non Functional Non Functional RequirementsRequirements All of the electrical components shall be housed in a
waterproof enclosure.
The system shall not cause any fire hazards or electrical shocks.
The user interface shall show a temperature vs. time graph of the current test.
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Market/Literature Survey Market/Literature Survey System Manufacturers
◦Humboldt Manufacturing◦ScienTemp◦Schleibinger
Buying a new system replacement is not an option because of the high cost.
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DeliverablesDeliverables Computerized system
◦ Automatically controls the freeze-thaw cycle of the test cabinet
◦ Automatic system error adjustments◦ Accurate temperature sensing
User interface ◦ Allows users to input and analyze data◦ Allows users to change the freeze-thaw
controls manually
System manual for reference
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Work Breakdown Work Breakdown ScheduleSchedule Learn LabVIEW
Group Website
System Testing
Test Temperature Probes
Analyze Results of Temperature Probe Tests
Test Freeze-Thaw Cabinet System Response
Analyze Results of System Response Tests
Project Design
Develop Simulated Freeze-Thaw Cabinet in LabVIEW
Develop New Control System in LabVIEW
Simulated Testing and LabVIEW Program Revision
LabVIEW Interface
Bound Report/Final Website
Implementation and Testing
Implement New LabVIEW Program
Test New LabVIEW Program
LabVIEW Program Revision and Error Correction
Documentation of Results
Develop User Manual
Final Report and Presentation
Project Poster
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Resource RequirementsResource Requirements Hours: Jacob Jameson 181Madhav Kothapalli 175Thomas Persinger 184Andrew Versluys 174 Project Labor Cost: Jacob Jameson $3620Madhav Kothapalli $3500Thomas Persinger $3680Andrew Versluys $3480
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Project ScheduleProject Schedule
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Questions?Questions?