Praktikum He.docx

LAMPIRAN A DATA TABEL

A.1 Tabel Data Mentah Data yang diperoleh pada percobaan ini : Tabel 1.1 Debit 4 Berlawanan Arah WAKTU 5 7 9

T(in) Panas Dingin 64 35 88 44 99 49

T(out) Panas Dingin 55 38 74 50 82 52

Tabel 1.2. Debit 4 Searah WAKTU 5 7 9

T(in) Panas Dingin 78 38 94 43 103 46

T(out) Panas Dingin 65 47 73 54 85 60

A.2 Tabel Data Jadi Tabel 1.3 Debit 4 Berlawanan Arah WAKTU 5 7 9

T(in) Panas Dingin 64 35 88 44 99 49

T(out) Panas Dingin 55 38 74 50 82 52

ΔT Panas 9 14 17

Dingin 3 6 3

ΔT LMTD 5,4614 9,4418 8,0710

Q Panas Dingin 43,2 14,4 67,2 28,8 81,6 14,4

Tabel 1.4. Debit 4 Searah WAKTU 5 7 9

T(in) Panas Dingin 78 38 94 43 103 46

T(out) Panas Dingin 65 47 73 54 85 60

ΔT Panas 13 21 18

Dingin 9 11 14

ΔT LMTD 10,8777 15,4649 15,9163

Q Panas Dingin 62,4 43,2 100,8 52,8 86,4 67,2

LAMPIRAN B PROSEDUR PERHITUNGAN

B.1 Perhitungan ΔT B.1.1. Perhitungan Panas Berlawanan Arah ΔT Panas (5 menit) = T(in) panas – T(out) panas = 64OC - 55 OC = 9 OC ΔT Panas (7 menit) = T(in) panas – T(out) panas = 88OC - 74 OC = 14 OC ΔT Panas (9 menit) = T(in) panas – T(out) panas = 99OC - 82 OC = 17 OC B.1.2 Perhitungan ΔT Dingin Berlawanan Arah ΔT Dingin (5 menit) = T(out) dingin – T(in) dingin = 38OC - 35 OC = 3 OC

ΔT Dingin (7 menit) = T(in) dingin – T(out) dingin = 50OC - 44 OC = 6 OC

ΔT Dingin (9 menit) = T(in) dingin – T(out) dingin = 52OC - 49 OC = 3 OC

B.1..3 Perhitungan ΔT Panas Satu Arah ΔT Panas (5 menit) = T(out) panas – T(in) panas = 78OC - 65 OC = 13 OC

ΔT Panas (7 menit) = T(in) panas – T(out) panas = 94OC - 73 OC = 21 OC

ΔT Panas (9 menit) = T(in) panas – T(out) panas = 103OC - 85 OC = 18 OC

B.1.4 Perhitungan ΔT Dingin Satu Arah ΔT Dingin (5 menit) = T(out) dingin – T(in) dingin = 47OC - 38 OC = 9 OC

ΔT Dingin (7 menit) = T(in) dingin – T(out) dingin = 54OC - 44 OC = 11 OC

ΔT Dingin (9 menit) = T(in) dingin – T(out) dingin = 60OC - 46 OC = 14 OC

B.2 Perhitungan ΔT LMTD B.2.1 Perhitugan ΔT LMTD Berlawanan Arah ΔT LMTD dalam waktu 5 menit ΔT LMTD =

=

∆𝑇1− ∆𝑇2 𝐿𝑛

∆𝑇1 ∆𝑇2

9− 3 𝐿𝑛

9 3

= 5,4614

ΔT dalam waktu 7 menit ΔT LMTD =

=

∆𝑇1− ∆𝑇2 𝐿𝑛

∆𝑇1 ∆𝑇2

14− 6 𝐿𝑛

14 6

= 9,4418

ΔT dalam waktu 9 menit ΔT LMTD =

=

∆𝑇1− ∆𝑇2 𝐿𝑛

∆𝑇1 ∆𝑇2

17− 3 𝐿𝑛

17 3

= 8,0710

B.2. 2 Perhitugan ΔT LMTD Searah ΔT LMTD dalam waktu 5 menit ΔT LMTD =

=

∆𝑇1− ∆𝑇2 𝐿𝑛

∆𝑇1 ∆𝑇2

13− 9 𝐿𝑛

13 9

= 10,8777

ΔT LMTD dalam waktu 7 menit ΔT LMTD =

=

∆𝑇1− ∆𝑇2 𝐿𝑛

∆𝑇1 ∆𝑇2

21− 11 𝐿𝑛

21 11

= 15,4649

ΔT LMTD dalam waktu 9 menit ΔT LMTD =

=

∆𝑇1− ∆𝑇2 𝐿𝑛

∆𝑇1 ∆𝑇2

18− 14 𝐿𝑛

18 14

= 15,9163

B.3 Perhitungan mencari Q B.3.1 Perhitungan Mencari Q Panas Dalam waktu 5 menit Q = m Cp ΔT