E-PORTFOLIO LENGKESHINY

JABATAN TENAGA MANUSIA

Rule of
Anggaran kasar sec

(Par

Thumb
cara Conggak Lazim
rt 1)

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JABATAN TENAGA MANUSIA

➢Merupakan cara palin
cooling load

➢Kurang tepat

➢Hanya tertumpu kepa
sahaja

➢Berpandukan maklum

ng cepat untuk mendapatkan

ada aktiviti dan keluasan ruang
mat daripada client (brif projek)

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JABATAN TENAGA MANUSIA

Q (rule of thum

Dimana,
A : Luas (ft²)
GTH : Grand tot

mb) = A x GTH

tal Heat (BTUh/ft²)

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JABATAN TENAGA MANUSIA Rumus Luas (Area)

)

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Contoh :

JABATAN TENAGA MANUSIA

10 ft Luas

10 ft

8 ft
20 ft

s = PxL
= 10 x 10
= 100 ft²

Luas = P x L
= 20 x 8
= 160 ft²

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JABATAN TENAGA MANUSIA Luas =
=
15 ft =
12 ft
Luas
14 ft

= ½xLxT
= ½ x 12 x 15
= 90 ft²

= ∏ x r²
= ∏ x 14 x14
= 615.75 ft²

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JABATAN TENAGA MANUSIA 10 ft Lu
12 ft
8 ft

12 ft
22 ft

uas = ½ x (L1 + L2) x T
= ½ x (12 + 10) x 8
= 88 ft²

Luas = (L x P) + (½ x ∏ x r²)
= (22 x 12) + ( ½ x ∏ x 6²)
= 264 + 56.55
= 320.55 ft²

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Grand Total Heat (G

➢ Beban haba keseluru

➢ Merujuk kepada Tab
Check Figure

GTH)

uhan
ble Design and Cooling Load





JABATAN TENAGA MANUSIA

Low
Average
High

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JABATAN TENAGA MANUSIA

Be Inspired, Be Extraordinary, Be World Class with TVET

JABATAN TENAG

KEMENTERIAN SUM

THANK

GA MANUSIA

MBER MANUSIA

K YOU

www.jtm.gov.my

JABATAN TENAG

KEMENTERIAN SUM

GA MANUSIA

MBER MANUSIA

Diploma Teknologi
Penyejukbekuan dan Penyamanan

Udara (L05)

L05-34-31
HVACR Architecture Drawing

and Cooling Load

INSTRUCTOR : SHARIFFAH SYAHIDAH BINTI S AMIR

www.jtm.gov.my

JABATAN TENAGA MANUSIA

Rule of
Anggaran kasar sec

(Par

Thumb
cara Conggak Lazim
rt 2)

Be Inspired, Be Extraordinary, Be World Class with TVET

• Mengapa kita gunakan unit?

• Pada pendapat anda mengap
kepentingan?

• Pernah anda rasa penggunaa

?
pa unit perlu diberi

an unit menyusahkan anda?

JABATAN TENAGA MANUSIA Contoh :

Classroom

Q (rule of thumb)
= A x GTH
= 20 x 13 x 60
= 15600 BTU/hr

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Luas keseluruhan
= PxL
= 15 x 10
= 150 ft²
Luas tandas = 5 x 6 = 30 ft²
Luas bilik = 150 – 30 = 120 ft²

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JABATAN TENAGA MANUSIA

Be Inspired, Be Extraordinary, Be World Class with TVET



Luas keseluruhan
= PxL
= 15 x 10
= 150 ft²

Luas tandas = 5 x 6 = 30 ft²

Luas bilik = 150 – 30 = 120 ft²

Q (rule of thumb)
= A x GTH
= 120 x 40
= 4800 BTU/hr

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29.00

2.00
2.30
4.56

4.89

33.65
7.65

15.20

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Pertukaran unit

1 m² = 10.764 ft ²

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33.65

29.00

2.00 7.65
2.30 15.20

4.56

4.89

2. Shop1
Area = (15.20 – 7.65) x (2 + 2.3)

= 32.465 m² x 10.764

= 349.453 ft²

1. Sale
Area = 33.65 x 29

= 975.85 m² x 10.764
= 10504.050 ft²

3. Shop2
Area = (15.2 + 4.89) x (4.56)
= 91.610 m² x 10.764
= 986.090 ft²

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33.65

29.00

7.65

2.00
2.30

4.56

4.89 15.20

5. Office
Area = 4.89 x 2
= 9.78 m² x 10.764
= 105.272 ft²

4. Food court
Area = 7.65 x (2 + 2.3)

= 32.895 m² x 10.764
= 354.082 ft²

6. Surau
Area =4.89 x 2.3
= 11.247 m² x 10.764
= 121.063 ft²

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JABATAN TENAGA MANUSIA

1. Sale
Area = 10504.050 ft² x 50

= 525202.5 BTU/hr

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JABATAN TENAGA MANUSIA

2. Shop1
Area = 349.453 ft² x 50
= 17472.65 BTU/hr

3. Shop2
Area = 986.090 ft² x 50
= 49304.50 Btu/hr

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