뜨거운 음료를 잘 마시게 하는 빨대 열유동해석 (영어ppt 및 영어 레포트)

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"뜨거운 음료를 잘 마시게 하는 빨대 열유동해석 (영어ppt 및 영어 레포트)"에 대한 내용입니다.

목차

1. Introduction
1) Motivation
2) Problems
3) Objective

2. Theoretical Background
1) Flow type
2) Hydraulic diameter
3) Heat Transfer
4) Energy equation

3. Method
1) Getting reference straws
2) Drawing geometries
3) Simulating on ANSYS
4) Confirming result

4. Modeling
1) Overall shape
2) Mesh
3) Setup
4) Setting basis

5. Result
1) Comparison of the straw models
2) Analysis of designs

6. Discussion
1) Final optimum model
2) CFD analysis

7. Conclusion

8. References

9. Appendices

본문내용

These days, many people go to cafe at their leisure time or when they need to study with their friends or alone. In cafe, people usually drink hot beverage such as hot americano or hot cocoa especially in winter. People who want to drink hot beverage but cannot drink well often get a burnt from the hot beverage because of its high temperature. The temperature is nearly 77℃. Then, should they wait until the beverage gets cooled?
One method to help them is to make a straw dissipate large amount of heat during sucking the straw. Fortunately, there is a straw called ‘SIP stick’ that enables people to drink hot beverage. But its ability to dissipate heat is not enough to drink rapidly. We found problem from these facts. So, we decided to optimize the straws used to drink hot beverage. We devised five prototypes and final optimized model. We did CFD analysis using ANSYS Fluent to choose the best model and compare them with SIP stick. And then we supplemented the better ones into final optimum model.

참고 자료

Frank M. White. (2016) Fluid Mechanics, 8th Ed. McGraw-Hill.
Frank P. Incropera, David P. DeWitt, Theodore L. Bergman, Adrienne S. Lavine. (2017) Principles of Heat and Mass Transfer, 8th Ed. Wiley.
M. Sansinena, M. V. Santos, N. Zaritzky, R. Baeza, J. Chirife (2010). Theoretical prediction of the effect of heat transfer parameters on cooling rates of liquid filled plastic straws used for cryopreservation of spermatozoa. ResearchGate.
KEM, “열전도율과 비열”. Retrieved from http://blog.naver.com/PostView.nhn?blogId=sunaojhy&logNo=220421946581 [June 9, 2020]
박현기 바리스타, “커피 마시기 좋은 온도”. Retrieved from https://blog.naver.com/byeolkong14/220771316247 [June 9 2020]
YTN 사이언스, “커피를 마시는 가장 맛있는 온도는?”. Retrieved from https://terms.naver.com/entry.nhn?docId=5905477&cid=51648&categoryId=63595 [June. 9, 2020]
우프, “저온화상”, Retrieved from https://woof.tistory.com/976 [June. 9, 2020]
Weidenfeller, Bernd. Kirchberg, Stefan. Thermal and mechanical properties of polypropylene-iron-diamond composites. Composites Part B: Engineering. Volume 92, 1 May 2016.
Water – Thermal Diffusivity. Engineering Toolbox, 2018. https://www.engineeringtoolbox.com/water-steam-thermal-diffusivity-d_2058.html [June. 6, 2020]

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뜨거운 음료를 잘 마시게 하는 빨대 열유동해석.docx
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