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HEATED TESTING VESSEL FOR ACID

Lyndra Therapeutics

Heated Testing Vessel for Acid: Other Projects

DESIGN PROCESS

JarProblemStatement.PNG

PROBLEM STATEMENT

Samples are subjected to repeated stress while incubated in FaSSGF. A heating system is required to keep the FaSSGF at body temperature through the test


SYSTEM REQUIREMENTS:

• Holds the element that stresses samples

• Maintains temperature to ±1°C

• Doesn’t degrade in acid

• Same height as existing jar

IDEA GENERATION:

Three possible designs shown below range from least invasive to most invasive design solution.

Heated Testing Vessel for Acid: Products
Idea Generation.PNG
Heated Testing Vessel for Acid: About Me

INITIAL PROTOTYPES

THERMAL FIN (left):  Too much heat is lost to the environment since size constraints limit the thermal mass – method rejected

BASE HEATING (right):  

• Water heated up

• Thermocouple accurately reads water temperature

• Insulated base got hot over time

Prototype 1.PNG
Prototype 1.PNG

PROTOTYPE 2

ADJUSTMENTS: 

• Increased insulating air gap in base between heater and bottom surface

• Gasket added between jar and conductor

RESULTS:  Water reached temperature in about 45 minutes and maintained ±0.5°C (shown in graph)

Heated Testing Vessel for Acid: Services
FinalJar_edited_edited.jpg

MACHINED AND ASSEMBLED FINAL HEATED JAR

ADJUSTMENTS:  

• Thermocouple screws directly into side wall

• Screen added to support to collect broken samples

RESULTS:

• Reduced user time by 5 minutes/cycle

• Maintained temperature to improve accuracy of test

• Standardized system to decrease user error

Heated Testing Vessel for Acid: Welcome
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