Question

Um tanque atmosférico em aço inoxidável, ASTM A304, com as características geométricas representadas na Figura, será utilizado no processo de evaporação e cristalização na produção de açúcar. O processo de fabricação adota trocas de calor por radiação, e nas recomendações de projeto o tampo deve ser mantido a 400 K, o costado 300 K e o fundo em 200 K.

Figura - Tanque de aço inoxidável.

tanque





text Fórmulas para aplicação end textstraight F subscript 12 equals 2 times straight H times open square brackets open parentheses 1 plus straight H squared close parentheses to the power of bevelled 1 half end exponent minus straight H close square bracketsstraight F subscript 22 equals 1 plus straight H minus open parentheses 1 plus straight H squared close parentheses to the power of bevelled 1 half end exponentonde colon space straight H equals straight L over straight D space comma space sendo space straight L space straight a space altura space do space tanque comma space straight e space straight D space straight o space diâmetro.

Realizar as contas em função de π

Determinar os fatores de forma das superfícies do tanque.

Escolha uma:
a. negative Fundo colon space straight F subscript 11 equals 0 semicolon space straight F subscript 12 equals 0 comma 94 semicolon space straight F subscript 13 equals 0 comma 06minus Costado colon space straight F subscript 21 equals 0 comma 12 semicolon space straight F subscript 22 equals 0 semicolon space straight F subscript 23 equals 0 comma 12minus Tampa colon space straight F subscript 31 equals 0 comma 06 semicolon space straight F subscript 32 equals space 0 comma 94 semicolon space straight F subscript 33 equals 0

b. negative Fundo colon space straight F subscript 11 equals 0 comma 76 semicolon space straight F subscript 12 equals 0 comma 94 semicolon space straight F subscript 13 equals 0 comma 06minus Costado colon space straight F subscript 21 equals 0 comma 12 semicolon space straight F subscript 22 equals 0 comma 76 semicolon space straight F subscript 23 equals 0 comma 12minus Tampa colon space straight F subscript 31 equals 0 comma 06 semicolon space straight F subscript 32 equals space 0 comma 94 semicolon space straight F subscript 33 equals 0 comma 76

c. negative Fundo colon space straight F subscript 11 equals 0 semicolon space straight F subscript 12 equals 0 comma 94 semicolon space straight F subscript 13 equals 0 comma 06minus Costado colon space straight F subscript 21 equals 0 comma 11 semicolon space straight F subscript 22 equals 0 comma 76 semicolon space straight F subscript 23 equals 0 comma 11minus Tampa colon space straight F subscript 31 equals 0 comma 06 semicolon space straight F subscript 32 equals space 0 comma 94 semicolon space straight F subscript 33 equals 0

d. negative Fundo colon space straight F subscript 11 equals 0 semicolon space straight F subscript 12 equals 0 comma 06 semicolon space straight F subscript 13 equals 0 comma 94minus Costado colon space straight F subscript 21 equals 0 comma 12 semicolon space straight F subscript 22 equals 0 comma 76 semicolon space straight F subscript 23 equals 0 comma 12minus Tampa colon space straight F subscript 31 equals 0 comma 94 semicolon space straight F subscript 32 equals space 0 comma 06 semicolon space straight F subscript 33 equals 0

e. negative Fundo colon space straight F subscript 11 equals 0 semicolon space straight F subscript 12 equals 0 comma 94 semicolon space straight F subscript 13 equals 0 comma 06minus Costado colon space straight F subscript 21 equals 0 comma 06 semicolon space straight F subscript 22 equals 0 comma 76 semicolon space straight F subscript 23 equals 0 comma 12minus Tampa colon space straight F subscript 31 equals 0 comma 12 semicolon space straight F subscript 32 equals space 0 comma 94 semicolon space straight F subscript 33 equals 0

Answer 1

Resposta Correta:

- Fundo: F11 = 0; F12 = 0,94; F13 = 0,06

- Costado: F21 = 0,11; F22 = 0,76; F23 = 0,11

- Tampa: F31 = 0,06; F32 = 0,94; F33= 0

Answer 2

corretissima

- Fundo: F11 = 0; F12 = 0,94; F13 = 0,06

- Costado: F21 = 0,11; F22 = 0,76; F23 = 0,11

- Tampa: F31 = 0,06; F32 = 0,94; F33= 0