(Đồ án hcmute) design and manufacturing a machine vegetables sterilized using cold plasma technology

MINISTRY OF EDUCATION AND TRAINING HCM CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY OF MECHANICAL ENGINEERING GRADUATION THESIS MACHINERY MANUFACTURING TECHNOLOGY DESIGN AND MANUFACTURING A MACHINE VEGETABLES STERILIZED USING COLD PLASMA TECHNOLOGY Advisor: TRAN NGOC DAM Students: VUONG KHA DAC Student’s ID: 13143078 Students: NGUYEN HAI DUONG Student’s ID: 13143063 Students: VU QUANG TRINH Student’s ID: 13143370 SKL 0 2 Ho Chi Minh City, July 2017 an HO CHI MINH UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY OF MECHANICAL ENGINEERING DEPARTMENT OF MACHINERY MANUFACTURING TECHNOLOGY BACHELOR THESIS DESIGN AND MANUFACTURING A MACHINE VEGETABLES STERILIZED USING COLD PLASMA TECHNOLOGY ADVISOR: TRAN NGOC DAM STUDENT’S NAME: VUONG KHA DAC STUDENT’S ID NUMBER: 13143078 STUDENT’S NAME: NGUYEN HAI DUONG STUDENT’S ID NUMBER: 13143063 STUDENT’S NAME: VU QUANG TRINH STUDENT’S ID NUMBER: 13143370 Ho Chi Minh City, Junly 2017 an HO CHI MINH UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY OF MECHANICAL ENGINEERING DEPARTMENT OF MACHINERY MANUFACTURING TECHNOLOGY BACHELOR THESIS DESIGN AND MANUFACTURING A MACHINE VEGETABLES STERILIZED USING COLD PLASMA TECHNOLOGY ADVISOR: TRAN NGOC DAM STUDENT’S NAME: VUONG KHA DAC STUDENT’S ID NUMBER: 13143078 STUDENT’S NAME: NGUYEN HAI DUONG STUDENT’S ID NUMBER: 13143063 STUDENT’S NAME: VU QUANG TRINH STUDENT’S ID NUMBER: 13143370 Ho Chi Minh City, Junly 2017 an HCMC UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY OF MECHANICAL ENGINERRING SOCIALIST REPUBLIC OF VIET NAM Independence - Liberty - Happiness ****** REVIEW OF INSTRUCTOR Student‟s name: VUONG KHA DAC ID number: 13143078 NGUYEN HAI DUONG ID number: 13143063 VU QUANG TRINH ID number: 13143370 Thesis‟s name: Desing and manufacturing developing a vegetables sterilized machine using cold plasma technology Intructor‟s name: Assoc Prof: TRAN NGOC DAM COMMENTS: Content and work‟s load: Advantages: Defects: Recommended for protection or not? Assessment Scores: (Letters: ) Ho Chi Minh city, date , month , year 2017 Instructor (Sign & full name) i an HCMC UNIVERSITY OF TECHNOLOGY AND EDUCATION FACULTY OF MECHANICAL ENGINERRING SOCIALIST REPUBLIC OF VIET NAM Independence - Liberty - Happiness ****** REVIEW OF REVIEWER Student‟s name: VUONG KHA DAC ID number: 13143078 NGUYEN HAI DUONG ID number: 13143063 VU QUANG TRINH ID number: 13143370 Thesis‟s name: Desing and manufacturing developing a vegetables sterilized machine using cold plasma technology Reviewer‟s name: Assoc Prof: TRUONG NGUYEN LUAN VU COMMENTS: Content and work‟s load: Advantages: Defects: Recommended for protection or not? Assessment Scores: (Letters: ) Ho Chi Minh city, date , month , year 2017 Instructor (Sign & full name) ii an COMMITMENT Thesis‟s name: Desing and manufacturing developing a vegetables sterilized machine using cold plasma technology Supervisor: Assoc Prof: TRAN NGOC DAM My full name: VUONG KHA DAC Student code: 13143078 Class: 131433D Student address: Nguyen Hamlet, Thach Lien Ward, Thach Ha District, Ha Tinh Province Phone number: 01676775394 Email: dacvuongkha@gmail.com Graduate thesis submission date Commitment: "I assure you the key comment (GT) this is the main work I studied and implemented I not copy from any one article would have been published without citing the original source If there are any violations, I would bear full responsibility " Ho Chi Minh City, July, 25th, 2017 Sign iii an COMMITMENT Thesis‟s name: Desing and manufacturing developing a vegetables sterilized machine using cold plasma technology Supervisor: Assoc Prof: TRAN NGOC DAM My full name: NGUYEN HAI DUONG Student code: 13143036 Class: 131433D Student address: Minh Tam Ward, Hon Quan District, Binh phuoc Province Phone number: 01648633244 Email: 13143036@student.hcmute.edu.vn Graduate thesis submission date Commitment: "I assure you the key comment (GT) this is the main work I studied and implemented I not copy from any one article would have been published without citing the original source If there are any violations, I would bear full responsibility " Ho Chi Minh City, July, 25th, 2017 Sign iii an COMMITMENT Thesis‟s name: Desing and manufacturing developing a vegetables sterilized machine using cold plasma technology Supervisor: Assoc Prof: TRAN NGOC DAM My full name: VU QUANG TRINH Student code: 13143370 Class 131433C Student address: Duc Thanh Hamlet, Loc Duc Ward, Bao Lam District, Lam Dong Province Phone number: 01649504187 Email: 13143370@student.hcmute.edu.vn Graduate thesis submission date Commitment: "I assure you the key comment (GT) this is the main work I studied and implemented I not copy from any one article would have been published without citing the original source If there are any violations, I would bear full responsibility " Ho Chi Minh City, July, 24th, 2017 Sign iii an ACKNOWLEDGEMENT Finally finished the topic of graduation, can not say what words to express our gratitude to the instructors as well as collective teachers lecturers in mechanical engineering machine The result of the project is a constant effort of teachers and students for a long time It helps us to re-organize our knowledge from theory to practice Through our workflow, we have been able to shape our ability to conduct scientific research, from the results of our experiments, our analytical capabilities, to embarking on a complete test of a complete cluster Four years on the lecture hall is not a long way but I think it is enough to build a foundation that will provide a platform for us to become a new engineer in the future How many difficulties and how much effort the sweat has dipped down to now our efforts have been fruitful, is the effort of the self, material support as well as the spirit of infinity From relatives and friends Give me sincere thanks to all We sincerely thank the teachers in the Faculty of Mechanical Engineering, Ho Chi Minh City University of Technology and Education, dedicated to helping and creating the best conditions for us to carry out this topic In particular, we would like to express our sincere gratitude to Assoc Prof.Tran Ngoc Dam and Ms.Thai Van Phuoc who guided, dedicated and dedicated to create favorable conditions for us to successfully complete the topic Despite the effort, but within a limited period of time, as well as limited knowledge of themselves, this project can not avoid many shortcomings Therefore, we would like to receive the comments of teachers, teachers as well as friends and people who are interested in the field of this project was presented iv an In the end, we would like to wish Master ThS Thai Van Phuoc and PSTS.Tran Ngoc Dam and her teachers in Mechanical Engineering Machinery to wish good health, happiness, good work We sincerely thank you ! TP Ho Chi Minh City, date 2017 Student group performance: Vuong Kha Dac Vu Quang Trinh Nguyen Hai Duong iv an r=15 (steel C45) Consider the equation system: ⅀V= VA+ VB- Q=0 Consider moment at A: ⅀MA=310 Q-650VB=0 → 310Q=650VB→VB= 310.150/650=71.5 (N) We have: VB=VA=71.5 (N) Consider the durable conditions: σmax=M(X max)/WX ≤[σ] Sections in dangerous places have the greatest moment: with Solid round tubes details, we have: Wd=0,1.D3 =0,1x0,0353=0,0043 Back there:MX/Wd =[σ] With the material is steel C45 , [σ] = 600Mpa therefore ∶ MX=0,0043x600=2,58 Page 55 an momen force chart 5.1.2 Calculation of chain transmission Select the type of chain: Because the load chains for mild shock, low working speed should pick roller chains  Define the parameters of the chain and transmission: Table 5.4 [16] Number of teeth of the small chain disk: z2 = ux.z1 = 1/2.29 = 14,4 Choose 14 teeth < zmax = 120 Conditions of guarantee indicators of durability of transmission chains: formula 5.3 Pt = P3.k.kz.kn [P] Page 56 an Với K z   Kz  Kn  n01 n3 Z 01 (the coefficient of the teeth) Z1 25  0,86 ( because Z01 = 25 ) 29 (coefficients rotation) Chọn n01 = 30 (rev / min) n3 = 24 (rev / min)  Kn  30  1, 25 24 formula 5.4 Table 5.6 [16] K = k0.ka.kđc.kbt.kđ.kc K0 = (the Center tracked disk compared to horizontal k = 1,3.1,2.1.1.1.1 = 1,56 Instead the formula 5.3: Pt = 0,2866.1,55.0,86.1,25 = 0,47(kw) Pt   P   0, 47(kw) (kd = because the chain sequence) kd [ P ] = 12,7 Kw Table 5.5: n01 = 30 (rev / min) , the chain sequence We select the chain step p= 12,7 (mm)  Axial distance and the number of chains: Axial distance: a = 40.p = 40.12,7 = 508 mm Page 57 an the number of chains: According to the formula 5.12 document [16] 2a z1  z ( z  z1 ) p x   p 4 a 2.508 29  14 (29  14) 12, x    101, 12, 4 508 Choose: x = 102 formula 5.13 [16] 2   Z  Z1   ac  0, 25 p  xc  0,5  Z  Z1    xc  0,5  Z  Z1            2   29  14   ac  0, 25.12,7 102  0,5  29  14   102  0,5  29  14       572mm       To chain force stretch not too big we reduce a lượng a a = 0,003.ac = 0,003.572=1,7 (mm) therefore a = 506,25 – 1,25 = 570 (mm) Formula 5.14: [12] i z1.n3 29.24   0, 15.x 15.102 Table: 5.9 [ i ] =60 [16] ⇒ i ≤ [i]  Disk diameter d1  p 12,   117, 46mm     sin   sin    29   Z1  Page 58 an d2  p 12,   57.07mm     sin   sin    14   Z1          d a1  p 0,5  cot g     12, 0,5  cot g     123,12mm  29     Z1            d a  p 0,5  cot g     12, 0,5  cot g     62mm  14     Z1    d f  d1  2.r d f  d2  2.r with: r =0,5025d1+0,05 Table 5.2 [12] d1=8,51 ⇒ r = 0,5025.8,51 + 0,05 = 4,33 d f  117, 46  2.4,33  108,8mm  d f  57, 07  2.433  48, 41mm  Teates chans of durability formula 5.15:[12] s Q   s kđ Ft  F0  Fv Q : the weight of destruction, Table 5.2 [16] Q = 18,2KN Kđ : dynamic load coefficient, choose Kđ = 1,2 (the average working mode) Ft : Force ring Ft  V 1000.P3 V n3 z1 p 24.29.12,7 m   0,147   60000 60000 s Page 59 an 1000.0,313  3130 N 0.1  Ft  Fv : force stretch due to the centrifugal force generated Fv = q.V2 q is the mass a chain meter Table 5.2[16] q = 0,65 kg/m ⇒ Fv = 0,65.0,12 = 0,0065 N F0 : the force stretch due to the tension chain branches are born: F0 = 9,81.kf.q.a with f = 0,015.a = 7,62 choose kf = (because of the angle the Center seam < 400) => F0 = 9,81.4.0,65.0,508 = 12,96 (N) therefore: s 18200  4, 75 1, 2.3180  12,96  0, 0065 Table 5.10 [16] n = 24vg/ph, [s] = So s > [s] : transmission chains ensure strength enough  The durability of exposed chain disk formula 5.18 : [16]  H  0,47 kr ( Ft kđ  Fvđ ) E / A.kd  [ H ] In that: Kr : The coefficient considering the influence of disc dogs teeth Kr1 = 0,36 with Z1 = 29 Kd = 2, Transmission chain by a sequence Kđ = 1,2 Dynamic load factor Fvđ The impact force on chains:(N) Fvd = 13.10-7 n3.p3.m = 13.10-7.24.12,73.1 = 0,064(N) Page 60 an With m is the number of rows of chains E : Module of elasticity Separate: E = 2,1.105 Mpa A : Hinge projection area (Table 5.12 )[16] choose A = 39,6 mm2  H  Allowable contact stress Contact stress of chain disk : 0,36(3013.1,  0, 064)2,1.105  H  0.47 = 781 Mpa 39, 6.2,5 Con0tact stress of chain disk 0,59(3013.1,  0, 064)2,1.105  H  0.47 = 999 Mpa 39, 6.2,5 So Table 5.11 [16] to ensure contact reliability for C45 steel sprockets we use the consultation to improve the surface reaches HRC55Allowable contact stress [ H ] = 1030 (Mpa)    H     H should ensure contact reliability  Determine the forces acting on the shaft: F1 Tension forces on active branches F2 Tension force on a passive branch  F1  Ft  F2 We have:   F2  F0  Fv  F1  Ft  F2   F2  12,96  0,0065  12,9665 N  F  3130  12,9665  3142,9665 N   F2  12,9665 Page 61 an The forces on the shaft: Fr = Kx Ft With Kx : coefficient to weight chain properties Kx = 1,15 (by vertical transmission)  Fr = 1,15.3130 = 3599,5 N 5.2 CALCULATION OF CIRCUIT PLASMA 5.2.1Water flow in the system Implement method of doing experiment by changing the water flow through the system then noticed with traffic 0, 7litres/min (stopwatch method) then the experiment for best results = > the flow through the system Q = 1.4 x 60 x 12 = 1008 litres/day = > meet the requirements of 1m3/day 5.2.2 Calculate size discharge tube: 5.2.2.1 Introduce: Page 62 an Figure 5.2 Diagram Paschen lines Figure 5.3 Plasma Chamber design 5.2.2.2 Design of tube: Select preliminary size discharge tube: - Tube outside Ø = 25 mm in size, thickness mm - pipes in sizes Ø = 12 mm, thickness 1.5 mm Page 63 an Fig 5.4 Size glass tubes and preliminary quartz tube Requirements of the system is through the mouth water after the overflow tube in the stick are on the outside of the tube in creating favorable conditions such as through the treatment li.Nhu with this requirement, it should be calculated maximum traffic flow tube in the mouth so that water out of pipes in the column does not constitute, a tia.Viec create water column, creating water jets will not only make the water can not stick them into the outside of the tube in which water can also contact with the plasma in the outer tube that can not happen 5.1 Selection parameters Derived from the work environment and the plasma Chamber, used to designate which things work are selected: the external tube made in plasma can not occur: - Water after treatment must meet criteria required by the standard - two electrodes to achieve the best reliability, launch Plasma currents are right, no electric current is concentrated primarily in one location - Water passing through the handle to it, avoid the traffic too much handle them - handling capacity of at least 01 liters / 10 seconds - The model ensures continuous running, without interruption during processing - Easy operation, simple operation - Safe to use: no electrical discharge occurs - Processor speed is 0.6liter / 10 seconds - Activities 8/24 - Input Voltage: 120V - Output voltage: - 10kV - Frequency: 10-45 KHz - Electric current: - 2A Select the plan design is a very important part in the design process Select the plan design is the process of understanding, economic calculation, analysis of Page 64 an alternatives to find the most optimal method, satisfying the requirements of economic, technical, and have the highest efficiency Through the calculation process we selected plasma treatment chamber with plasma processing power tube 2.4liter / Page 65 an CHAPTER 6: CONCLUSIONS AND RECOMMENDATIONS 6.1 CONCLUSIONS With the theme: "Reseach, design and manufacturing a machine using cold plasma technology for cleaning and disinfection bacteria on the face of fruit and vegetables" The team has conducted research, calculation, design, fabrication and testing of sterilized vegetables and fruits by plasma technology The washing machine is finished and initially has results - In addition, the team has conducted research on the ability to prolong the shelf life of fruits such as bananas, grapes, strawberries and have certain results - The team also offers a number of improvements, improving machine performance as well as stability of the machine 6.2 RECOMMENDED Group has a number of recommendations following: - Finalize design additional modules for incorporation plasma treatment - Conduct additional experiments with other fruits to provide a general formula for all kinds of fruit - Process blueprints we really encountered many difficulties in manufacturing as well as places to projects Therefore we respectfully request that the Faculty will be more help for students to projects Especially facilitating machinery, facilities to process blueprints - Respectfully department should establish a dedicated laboratory for final year students and student scientific research conditions and locations of machinery to implement the idea Page 66 an List of References  English [1] Clean food standards that consumers must know (April 12, 2016) giant.com.vn [3] Cold Plasma processing (n.d.) Wageningen university and research [5] Shankar, R (2014) Modeling of Various Compositional Changes Occurring in the Sliced Chicken Treated Allahabad: International Journal of Innovation and Scientific Research [6] Shankar, R (2014) Modeling of Various Compositional Changes Occurring in the Sliced Chicken Treated Allahabad,: International Journal of Innovation and Scientific Research [7] Tiwari, B (2011) Nonthermal Plasma Inactivation of Food-Borne Dublin: Dublin Institute of Technology [9] Ritesh Mishra*, S B ((February 2016)) Cold Plasma: Emerging As the New Standard in Food Safety Moradabad: International Journal of Engineering And Science [11] Kusumaningrum HD 1, R G (2003) Survival of foodborne pathogens on stainless steel surfaces and cross-contamination to foods National Center for Biotechnology Information, U.S National Library of Medicine [12] Mr Brian Oram, P G (2014 ) Drinking Water Treatment with UV Irradiation Water Research Center Page 67 an [13] IUPAC (1997) Compendium of Chemical Terminology, 2nd ed LAUREN B ALLOY, L Y ( Vol 25, No 7, 2006) COGNITIVE VULNERABILITY TO UNIPOLAR Journal of Social and Clinical Psychology [15] Rainer Volkamer, * B (First published as an Advance Article on the web 21st March 2002) OH-initiated oxidation of benzene Valencia  Việt Nam [2] MODULECác bệnh dẫn đến từ thực phẩm (Food-borne Diseases) (2015) The Vietnam Open Educational Resources [4] Khí plasma đơng lạnh giúp bảo quản thực phẩm với độ an toàn cao (15/01/2009 ) Viện Khoa Học Nông Nghiệp Việt Nam [14] Giới thiệu plasma (n.d.) www.mientayvn.com [16] Tính tốn thiết kế hệ dẩn động khí tập Lê Văn Uyển, Trịnh Chất Page 68 an S an K L 0 ... placed in a gas mixture There are different ways to generate atmospheric plasma such as Radiofrequency plasma (RF plasma) , corona discharge plasma, resistive barrier discharge (RBD) plasma and. .. OF TECHNOLOGY AND EDUCATION FACULTY OF MECHANICAL ENGINEERING DEPARTMENT OF MACHINERY MANUFACTURING TECHNOLOGY BACHELOR THESIS DESIGN AND MANUFACTURING A MACHINE VEGETABLES STERILIZED USING COLD. .. research, process impact and technology development.[3]  Main applications of cold plasma: Disinfection of packaging materials: Cold plasma can be used to inactivate vegetative micro-organisms and