Design and Analysis of Fin-X Technology
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The document analyzes Fin-X technology, which uses fins inspired by jet engine design to more efficiently transfer heat in cookware. It describes how fins draw on heat that would otherwise escape conventional pans and distribute it more evenly. Thermal analysis in ANSYS of standard and finned vessel models shows the finned vessel achieves 15% greater efficiency by transferring heat to its contents 15% faster than the standard vessel using the same input heat. The technology has potential to save household fuel or develop efficient cooking vessels for countries with energy scarcity issues.
Design and Analysis of Fin-X Technology
- 1. 1 | P a g e F i n - X T e c h n o l o g y DESIGN AND ANLYSIS ON FIN-X TECHNOLOGY A report submitted in partial fulfillment of the requirements for the award of B. Tech degree in Mechanical Engineering By K.S.S Tulasi Ram Nitish Sharma (Mechanical Engineer) (Mechanical Engineer)
- 2. 2 | P a g e F i n - X T e c h n o l o g y Introduction The Fin-X Technology Flared cookware is based on Jet engine cooling technology. When the University of Oxford's Dr. Thomas Povey was on a mountaineering trip several years ago, he became acutely aware of how much fuel was required to boil water using his conventional cookware. This inspired the professor of engineering to develop a new type of cooking pan, that would make better use of available heat. The result is the "finned" Flare Pan, which requires 40 percent less heat than a regular pan to get just as hot. When Povey and colleagues tested traditional pans on a gas range, they noticed that much of the heat from the flame simply went up the sides of the vessel and into the air. Drawing on technology developed to dissipate heat in jet engines, the fins built into the sides of the Flare Pan served to absorb much of that previously-wasted heat. Known as FIN-X technology, the design also distributed that heat more evenly. As a result, not only is less energy required, but items can also be cooked faster using the same heat output. The rate of heat transfer from the surface to the surroundings by convection is given by the Newton’s law as 𝑸 = 𝒉. 𝑨s dT , where dT is the temperature difference between the surface and surroundings, As is the surface area exposed to the environment and h is the convective heat transfer coefficient.
- 3. 3 | P a g e F i n - X T e c h n o l o g y When it is desirable to enhance this rate of heat transfer as in cooling of IC Engine cylinders or compressor cylinders or from an electronic circuit board or from car radiator, etc., it is possible in only two ways. The temperature of the surroundings is fixed and the rate increases desirable and hence we are left with two options, either increasing the surface area or increasing the convective heat transfer coefficient. Convective heat transfer coefficient is a complex one and is a function of surrounding fluid properties and flow properties. And increasing ‘h’ is a cumbersome process and may not be practical. Hence to increase the heat transfer from the surface the best thing to do is to increase the surface area exposed to the surroundings. This is done by attaching additional surface to the original surface and such extended surfaces are generally called as Fins. There are several forms of fins and the most common types are straight fins, triangular fins, circumferential fins, pin fins, longitudinal fins, etc. Common applications of fins are with IC Engines, air compressors, automobiles, electrical transformers, refrigerator, and A/c equipment, economizer, etc. These surfaces are manufactured by extruding, welding or wrapping, a thin metal sheet on a surface. In the case of car radiator evaporator condenser of a window A/c box closely packed thin metal sheets attached to the tubes increase the surface area and thus increasing the convection many times. The fins are classified as uniform and non-uniform cross-section area fins. Analysis of uniform area fins is relatively easy.
- 4. 4 | P a g e F i n - X T e c h n o l o g y Fin-X Technology Cooking at home is great, and certainly a lot healthier (for your body and your pocket) than eating out. Unfortunately, cooking takes up energy, and if you do not have solar panels on your roof-top, this could mean quite a high electric bill. The new cooking pot called Flare, has a brand new design specifically developed to reach the desired temperature much faster, or to be more precise 40% faster than any conventional saucepan, maintains the temperature for much longer, and consequently, cuts down energy use by nearly 30%. This is achieved thanks to the use of aluminium in the making of the FIN-X technology, and the slightly unconventional shape, with high-performance ‘fins’, which distribute the heat in a much more effective manner. What is Flare with FIN-X technology? Designed to cook 40% faster than typical kitchen pans on gas with FIN-X technology; saving time and energy whilst producing exceptional results.
- 5. 5 | P a g e F i n - X T e c h n o l o g y How does the Fin-X Cookware cook faster? Radial fins allow flames to 'lock' onto position at the base and side of the pan, keeping the flame even. As a result heat is evenly distributed and channelled across the base and up the sides of the pan. FIN-X creates greater thermal conduction throughout the pan. As a result, cooking performance and quality are improved.
- 6. 6 | P a g e F i n - X T e c h n o l o g y How does it compare with regular cookware? Developed in association with the University of Oxford, thermo-graphic testing proves that FIN-X radial fins encourage flames to 'lock-on', controlling and pushing heat evenly up the walls of the pan and increasing performance and inefficiency in comparison to a standard pan. This allows for better heat conduction, quicker, which means less energy is used. The patented design eradicates uneven heating of food when cooking on gas.
- 7. 7 | P a g e F i n - X T e c h n o l o g y DESIGN: Design was prepared in Designing Software named Solid works with real time dimensions. In general the Indian pressure cookers are designed especially for small burners. Keeping in mind we have designed the radius of finned cookware and taking the formula of volume of cylinder, the volume was calculated. The volume of pressure cooker is approximately 10 litres. The dimensions were 12cm base radius, height 24cms and bottom fillet was of 3cm radius with taper angle of 100o. These were the dimensions for the standard vessel as shown below. We had also designed the vessel with fins of 1cm thickness. These were the models designed for this project. For comfort analysis we assemble a solid body to fill as fluid (water) in the vessel
- 8. 8 | P a g e F i n - X T e c h n o l o g y ANALYSIS: Analysis was carried out in ANSYS. Analysis of these model prepared in solid works was done in ANSYS software as steady state thermal analysis. In this process of analysis there were several steps involved. First a stead state analysis was taken to do the analysis on the model. Aluminium alloy is applied to the body of the vessel and the assemble part is applied with fluid as water. The base of the model was given with 9000c temperature to heat as shown below. To transfer the heat convection should apply on the body. 22 w/m2 0c the convection to the model and due to this the heat will transfer though the model where in contact molecules.
- 9. 9 | P a g e F i n - X T e c h n o l o g y Probes: Probes are used to know the value or result after the solution and take the readings. For this model probes were taken to know the temperature and heat flux. They were taken at top of the vessel with part acts as fluid to find how much the fluid got and to compare standard and finned vessel.
- 10. 10 | P a g e F i n - X T e c h n o l o g y Observation: Temperature and heat flux was applied on the surface the fluid and the temperature distribution can be identified from the below images. The temperature applied was 900°C to both standard and Finned Cookware. If we compare the below two images, we can observe that the cookware which does not have fins (which is a standard cookware) shows less heat transfer. Whereas the cookware which has fins (which is flared fin-x model) shows more heat transfer in the same time with same temperature.
- 11. 11 | P a g e F i n - X T e c h n o l o g y Standard vessel Model (B4) > Geometry > Parts Object Name Flared Fin X Model fluid State Meshed Graphics Properties Visible Yes Transparency 1 0.1 Definition Suppressed No Stiffness Behavior Flexible Coordinate System Default Coordinate System Reference Temperature By Environment Material Assignment Aluminum Alloy Water Liquid Nonlinear Effects Yes Thermal Strain Effects Yes Bounding Box Length X 0.35553 m 0.31272 m Length Y 0.24899 m 0.23872 m Length Z 0.53776 m 0.31272 m Properties Volume 2.8963e-003 m³ 1.3755e-002 m³ Mass 8.0226 kg 13.73 kg Centroid X 0.23791 m 0.23734 m Centroid Y 0.33843 m 0.35718 m Centroid Z 0.27796 m 0.26271 m Moment of Inertia Ip1 0.15741 kg·m² 0.12678 kg·m² Moment of Inertia Ip2 0.17296 kg·m² 0.12921 kg·m² Moment of Inertia Ip3 0.12223 kg·m² 0.12683 kg·m² Statistics Nodes 30384 67454 Elements 15353 15678 Mesh Metric None
- 12. 12 | P a g e F i n - X T e c h n o l o g y Finned vessel Model (A4) > Geometry > Parts Object Name Flared Fin X Model 2 Flared Fin X Model 2 fluid State Meshed Graphics Properties Visible Yes Transparency 1 0.1 Definition Suppressed No Stiffness Behavior Flexible Coordinate System Default Coordinate System Reference Temperature By Environment Material Assignment Aluminum Alloy Water Liquid Nonlinear Effects Yes Thermal Strain Effects Yes Bounding Box Length X 0.35553 m 0.32508 m 0.31272 m Length Y 0.25371 m 2.116e-004 m 0.23872 m Length Z 0.53776 m 0.32508 m 0.31272 m Properties Volume 2.8213e-003 m³ 6.2668e-007 m³ 1.3755e-002 m³ Mass 7.8149 kg 1.7359e-003 kg 13.73 kg Centroid X 0.24333 m 0.24282 m 0.24276 m Centroid Y 0.33327 m 0.48286 m 0.37666 m Centroid Z 0.43773 m 0.42229 m 0.42227 m Moment of Inertia Ip1 0.15036 kg·m² 2.1608e-005 kg·m² 0.12683 kg·m² Moment of Inertia Ip2 0.16813 kg·m² 4.3215e-005 kg·m² 0.12921 kg·m² Moment of Inertia Ip3 0.11379 kg·m² 2.1608e-005 kg·m² 0.12678 kg·m² Statistics Nodes 60279 17878 61114 Elements 32127 7261 14118 Mesh Metric None
- 13. 13 | P a g e F i n - X T e c h n o l o g y Standard vessel Model (B4) > Steady-State Thermal (B5) > Solution (B6) > Results Object Name Temperature Total Heat Flux State Solved Scope Scoping Method Geometry Selection Geometry All Bodies Definition Type Temperature Total Heat Flux By Time Display Time Last Calculate Time History Yes Identifier Suppressed No Results Minimum 226.7 °C 13.71 W/m² Maximum 900. °C 1.1411e+006 W/m² Minimum Occurs On Flared Fin X Model fluid Maximum Occurs On Flared Fin X Model Minimum Value Over Time Minimum 226.7 °C 13.71 W/m² Maximum 226.7 °C 13.71 W/m² Maximum Value Over Time Minimum 900. °C 1.1411e+006 W/m² Maximum 900. °C 1.1411e+006 W/m² Information Time 1. s Load Step 1 Substep 1 Iteration Number 2 Integration Point Results Display Option Averaged Average Across Bodies No
- 14. 14 | P a g e F i n - X T e c h n o l o g y Model (B4) > Steady-State Thermal (B5) > Solution (B6) > Probes Object Name Heat Flux Probe Temperature Probe State Solved Definition Type Heat Flux Temperature Location Method Geometry Selection Geometry 1 Face Suppressed No Options Result Selection Total Display Time End Time Spatial Resolution Use Maximum Results Total 912.55 W/m² Temperature 113.32 °C Maximum Value Over Time Total 912.55 W/m² Temperature 113.32 °C Minimum Value Over Time Total 912.55 W/m² Temperature 113.32 °C Information Time 1. s Load Step 1 Substep 1 Iteration Number 2
- 15. 15 | P a g e F i n - X T e c h n o l o g y Finned vessel Model (A4) > Steady-State Thermal (A5) > Solution (A6) > Results Object Name Temperature Total Heat Flux State Solved Scope Scoping Method Geometry Selection Geometry All Bodies Definition Type Temperature Total Heat Flux By Time Display Time Last Calculate Time History Yes Identifier Suppressed No Results Minimum 22. °C 2.8007e-010 W/m² Maximum 900.03 °C 1.8649e+006 W/m² Minimum Occurs On Flared Fin X Model 2 Maximum Occurs On fluid Flared Fin X Model 2 Minimum Value Over Time Minimum 22. °C 2.8007e-010 W/m² Maximum 22. °C 2.8007e-010 W/m² Maximum Value Over Time Minimum 900.03 °C 1.8649e+006 W/m² Maximum 900.03 °C 1.8649e+006 W/m² Information Time 1. s Load Step 1 Substep 1 Iteration Number 2 Integration Point Results Display Option Averaged Average Across Bodies No
- 16. 16 | P a g e F i n - X T e c h n o l o g y Model (A4) > Steady-State Thermal (A5) > Solution (A6) > Probes Object Name Heat Flux Probe Temperature Probe State Solved Definition Type Heat Flux Temperature Location Method Geometry Selection Geometry 1 Face Suppressed No Options Result Selection Total Display Time End Time Spatial Resolution Use Maximum Results Total 2024. W/m² Temperature 131.98 °C Maximum Value Over Time Total 2024. W/m² Temperature 131.98 °C Minimum Value Over Time Total 2024. W/m² Temperature 131.98 °C Information Time 1. s Load Step 1 Substep 1 Iteration Number 2
- 17. 17 | P a g e F i n - X T e c h n o l o g y Conclusion: This project concludes that by the help of fins to the vessel we can save the energy as well as time by more heat transfer. It is designed to help turn scientific and technological ideas into innovative, profitable products and services. The result of our project show that finned vessel is 15% more efficient than standard vessel. So we can say that Fin-x technology can helps to save the fuel that use in our households. Future scope: In our country we have a lot of problems faced due to gas, either price or scarcity. So we can save fuel by the help this Fin-x technology in cooking vessels that may save the fuel and to develop the technology in our country. This project can be carried out later on by changing material of a vessel and fins, fins shape and area of contact, increase in number of fins. This can also for different type of vessel in household. Reference: http://www.eng.ox.ac.uk/about/news/oxford-designed-flare-pan-uses-40- per-cent-less-heat-than-conventional-pans http://www.geek.com/science/oxford-scientist-taps-jet-engine-tech-to-build- super-efficient-pots-and-pans-1598904/ http://www.flare.co.uk/
- 18. 18 | P a g e F i n - X T e c h n o l o g y