Image Width (pixels):


Thermal Analysis of a Diffusion Pump and Water Cooled Baffle Assembly

Analyzed File High Vacuum Pump and Adapter Subassembly - Simulation Model v32
Version Autodesk Fusion 360 (2.0.4571)
Creation Date 2018-10-14, 23:33:54
Author Michael Bretti - Applied Ion Systems
Summary An updated thermal analysis of a new high vacuum pumping subsystem stack consisting of an Edwards EO4 diffusion pump, an 8" water cooled baffle, and several custom aluminum adapter plates.Various cases at different ambient temperatures as well as cooling temperatures are explored.

 Project Properties

TitleThermal Analysis of a Diffusion Pump and Water Cooled Baffle Assembly
AuthorMichael Bretti - Applied Ion Systems

 Simulation Model 1:1

 Study 1 - Thermal

 Study Properties
Study Type Thermal
Last Modification Date 2018-10-12, 20:06:58

 Settings

 General
Contact Tolerance0.1 mm
Global Initial Temperature20 C
 Mesh
Average Element Size (% of model size)
  Solids 10
Scale Mesh Size Per Part No
  Average Element Size (absolute value) -
Element Order Parabolic
Create Curved Mesh Elements Yes
Max. Turn Angle on Curves (Deg.) 60
Max. Adjacent Mesh Size Ratio 1.5
Max. Aspect Ratio 10
Minimum Element Size (% of average size) 20
 Adaptive Mesh Refinement
Number of Refinement Steps 0
Results Convergence Tolerance (%) 20
Portion of Elements to Refine (%)10
Results for Baseline AccuracyHeat Flux

 Materials

ComponentMaterialSafety Factor
Diffusion Pump to 8" Baffle Adapter V2 v2:1AluminumYield Strength
ISO160 Diffusion Pump to 6" CF Knife Edge w/ Mounting Holes V2 v6:1AluminumYield Strength
Large 8in Water Cooled Baffle - Assembly v7:1/Large 8in Water Cooled Baffle - Main Body v8:1Stainless SteelYield Strength
Large 8in Water Cooled Baffle - Assembly v7:1/Top Baffle Ring 1 v2:1Stainless SteelYield Strength
Large 8in Water Cooled Baffle - Assembly v7:1/Top Baffle Ring 2 v2:1Stainless SteelYield Strength
Large 8in Water Cooled Baffle - Assembly v7:1/Top Baffle Ring 3 v2:1Stainless SteelYield Strength
Large 8in Water Cooled Baffle - Assembly v7:1/Top Baffle Ring 4 v2:1Stainless SteelYield Strength
Large 8in Water Cooled Baffle - Assembly v7:1/Bottle Baffle Ring 0 v1:1Stainless SteelYield Strength
Large 8in Water Cooled Baffle - Assembly v7:1/Bottom Baffle Ring 1 v1:1Stainless SteelYield Strength
Large 8in Water Cooled Baffle - Assembly v7:1/Bottom Baffle Ring 2 v1:1Stainless SteelYield Strength
Large 8in Water Cooled Baffle - Assembly v7:1/Bottom Baffle Ring 3 v1:1Stainless SteelYield Strength
Large 8in Water Cooled Baffle - Assembly v7:1/Bottom Baffle Ring 4 v1:1Stainless SteelYield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Body1Stainless SteelYield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Body4Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Body13Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Body16Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Body17Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Body18Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Body19Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/KF25 Bored Flange - Flat Backed v1:1Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Component116:1Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Component118:1Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Cooling Line Wide Radius 90 Degree Bend v0 (1):1Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Component121:1Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Main Body Revised v10:1/Cooling Line Wide Radius 90 Degree Bend 0.5" Radius v0:1Stainless Steel AISI 304Yield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Heat Spreader Plate v1:1Stainless SteelYield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Heater Element v1:1Stainless SteelYield Strength
Edwards EO4 Diffusion Pump - Assembly v3:1/Heater Shield v2:1Stainless Steel AISI 304Yield Strength
175mL Pump Fluid Fill v1:1DC-705Yield Strength
 DC-705
Density1.09E-06 kg / mm^3
Young's Modulus0 MPa
Poisson's Ratio0
Yield Strength0 MPa
Ultimate Tensile Strength0 MPa
Thermal Conductivity1.3E-05 W / (mm C)
Thermal Expansion Coefficient1E-07 / C
Specific Heat1758 J / (kg C)
 Aluminum
Density2.7E-06 kg / mm^3
Young's Modulus68900 MPa
Poisson's Ratio0.33
Yield Strength275 MPa
Ultimate Tensile Strength310 MPa
Thermal Conductivity0.23 W / (mm C)
Thermal Expansion Coefficient2.36E-05 / C
Specific Heat897 J / (kg C)
 Stainless Steel
Density8E-06 kg / mm^3
Young's Modulus193000 MPa
Poisson's Ratio0.3
Yield Strength250 MPa
Ultimate Tensile Strength540 MPa
Thermal Conductivity0.0162 W / (mm C)
Thermal Expansion Coefficient1.04E-05 / C
Specific Heat477 J / (kg C)
 Stainless Steel AISI 304
Density8E-06 kg / mm^3
Young's Modulus195000 MPa
Poisson's Ratio0.29
Yield Strength215 MPa
Ultimate Tensile Strength505 MPa
Thermal Conductivity0.0162 W / (mm C)
Thermal Expansion Coefficient1.73E-05 / C
Specific Heat500 J / (kg C)

 Mesh

TypeNodesElements
Solids463164251685

 Load Case1

 Loads

 Internal Heat1
TypeInternal Heat
Internal Heat Value850 W
 Selected Entities

For correct interpretation of this image use e.g. IE9, Chrome, Safari, Firefox

 Radiation1
TypeRadiation
Emissivity Value0.65
Ambient Temperature25 C
 Selected Entities

For correct interpretation of this image use e.g. IE9, Chrome, Safari, Firefox

 Radiation2
TypeRadiation
Emissivity Value0.65
Ambient Temperature25 C
 Selected Entities