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Tatystefan Ortiz

Academic year: 2022

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See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/356473683

Intercambiadores de calor en la pasteurización

Preprint · November 2021

DOI: 10.13140/RG.2.2.23633.04960

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Experimentación y modelado de la biogestiónView project Juan Pablo Ramírez-Galvis

Central University (Colombia) 48PUBLICATIONS   8CITATIONS   

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Revitalia. Biogestión, NBIC e industria 4.0 [email protected]

Globuss Biogestión

Ramírez-Galvis, Juan Pablo

Intercambiadores de calor en la pasteurización Revitalia, número 11, 30 de noviembre, 2021, pp. 17-25

Globuss Biogestión Bogotá - Colombia

Disponible en: http://revitalia.biogestion.com.co/

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𝐿𝐿𝐿𝐿𝐿𝐿𝐿𝐿 = ∆𝐿𝐿

1

− ∆𝐿𝐿

2

𝐿𝐿𝐿𝐿 ∆ 𝐿𝐿 ∆ 𝐿𝐿

12

∈ = 𝑄𝑄 𝑄𝑄

𝑚𝑚𝑚𝑚𝑚𝑚

= 𝐿𝐿𝐿𝐿 𝑡𝑡𝐿𝐿𝑡𝑡𝐿𝐿 𝑑𝑑𝑑𝑑 𝑡𝑡𝑡𝑡𝐿𝐿𝐿𝐿𝑡𝑡𝑡𝑡𝑑𝑑𝑡𝑡𝑑𝑑𝐿𝐿𝑡𝑡𝑡𝑡𝐿𝐿 𝑑𝑑𝑑𝑑 𝑡𝑡𝐿𝐿𝑐𝑐𝑐𝑐𝑡𝑡 𝑡𝑡𝑑𝑑𝐿𝐿𝑐𝑐

𝑚𝑚á𝑥𝑥𝑡𝑡𝑚𝑚𝐿𝐿 𝑡𝑡𝐿𝐿𝑡𝑡𝐿𝐿 𝑑𝑑𝑑𝑑 𝑡𝑡𝑡𝑡𝐿𝐿𝐿𝐿𝑡𝑡𝑡𝑡𝑑𝑑𝑡𝑡𝑑𝑑𝐿𝐿𝑡𝑡𝑡𝑡𝐿𝐿 𝑑𝑑𝑑𝑑 𝑡𝑡𝐿𝐿𝑐𝑐𝑐𝑐𝑡𝑡 𝑝𝑝𝑐𝑐𝑡𝑡𝑡𝑡𝑝𝑝𝑐𝑐𝑑𝑑

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Constantes

Radio tubo interno (leche) 0,015 m Radio tubo externo (agua) 0,03 m

Longitud 5 m

Calor especifico leche 3,85 kJ/kg. K Calor especifico agua 4,18 kJ/kg. K

Corrida 1 Corrida 2 Corrida 3 Corrida 4 Corrida 5 Corrida 6 Corrida 7 Corrida 8

Flujo másico leche (Kg/s) 2 4 6 8 2 4 6 8

Flujo másico agua (Kg/s) 8 6 4 2 8 6 4 2

Temperatura entrante leche (oC) 4 4 4 4 4 4 4 4

Temperatura entrante agua (oC) 72 72 72 72 72 72 72 72

Temperatura saliente leche (oC) 22,89 21,39 19,46 15,37 23,04 21,71 20,03 16,20

Temperatura saliente agua (oC) 67,49 60,92 49,85 28,58 67,45 60,72 49,03 25,39

Diferencia media logaritmica (oC) 55,4799692 52,4843101 46,6976355 33,4384357 55,8923075 53,4405437 48,4171314 35,8867264 Transferencia de calor leche (Kw) Q real 145,453 267,806 357,126 350,196 146,608 272,734 370,293 375,76 Transferencia de calor agua (Kw) Q real 150,8144 277,8864 370,348 362,9912 152,152 282,9024 384,0584 389,6596 Valor U (W/m2 oC) 741,795299 1443,73809 2163,83521 2963,21275 742,169725 1443,99609 2163,93421 2962,6088

Capacidad calorica leche 7,7 15,4 23,1 30,8 7,7 15,4 23,1 30,8

Capacidad calorica agua 33,44 25,08 16,72 8,36 33,44 25,08 16,72 8,36

Q maxima 523,6 1047,2 1136,96 568,48 523,6 1047,2 1136,96 568,48

Efectividad (Qreal/Qmax) 27,78% 25,57% 31,41% 61,60% 28,00% 26,04% 32,57% 66,10%

Paralelo Contracorriente

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Corrida Bloques Flujo másico leche (Kg/s) Flujo másico

agua (Kg/s) Efectividad (Qreal/Qmax)

1 1 2 8 0,277794118

2 1 4 6 0,255735294

3 1 6 4 0,314106037

4 1 8 2 0,616021672

5 2 2 8 0,28

6 2 4 6 0,260441176

7 2 6 4 0,32568692

8 2 8 2 0,660990712

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