MEC 653HEATING, VENTILATION AIR CONDITIONING SYSTEM

1.AMIRUL HAQIM2.KHAIRUL ANUAR3.ANIS UMIRA4.AFNAN HANANY

SURAU KOLEJ MAWAR

Figure 1: The building of surau kolej mawar

BUILDING PLAN LAYOUT

BUILDING DESCRIPTIONPARAMETERS DESCRIPTION

Overall floor area 15.24m x 8.86m

Floor to ceiling height 3.62m

Walls construction 100mm common brick and 20mm plaster on the innermost and outermost layer

Roof Pitched roof – with ceiling ½ gypsum board

Window 3 unit x 0.85 m x1.9m on North & South, uncoated single glazing 3.2 mm gray with

aluminum frame ( fixed)Door 3 unit x 5.34m x2m

Lighting 8 unit of fluorescent

Occupancy 50 people (maximum)

Ventilation 2.5 l/s per person

Air change 8-15 per hour

DESIGN CONDITION

• Toutdoor 34 OC 60% of Relative humidity

• Tindoor 25 OC 55% of Relative humidity

• Tmean 29.5 OC

COOLING LOAD

Overall HT Coeff, U

(W/m2 Oc)Area fraction,

A CLTD CLTDcorCooling Load

(W)

East 2.26 21.39 21 21.6 1045.30

West 2.26 37.91 11 11.6 994.92

South 2.26 32.07 17 17.6 1277.00

North 2.26 41.25 9 9.6 895.93

DESCRIPTION

Walls - CLTD method (Sensible)

Roof

Overal Heat Transfer

Coefficient, U (W/M2 °C) Area, A (m2) CLTD CLTDcorr

Cooling load (W)

1 0.53 41.25 83 83.6 1840.18

Roof - CLTD method (Sensible)

Window - SCL Method (Sensible)

 

Area fraction, A SC SCL Cooling load

(W)

South 3.24 0.74 170 407.59

North 1.62 0.74 101 121.08

DESCRIPTION

  Area fraction, A SC SCL Cooling load (W)

South 10.68 0.86 170 1561.42

North 10.68 0.86 101 927.66

East 10.68 0.86 148 1359.35

Sliding Door - SCL Method (Sensible)

 

Area fraction, A SC SCL Cooling load

(W)

South 3.34 0.86 170 488.31

Main Door - SCL Method (Sensible)

No of Lighting Ballast factor CLF (watts) Q

8 1.2 1 9.6

Heat Generation Lighting (Sensible)

No Of People (N) Hours after SHG LHG CLF

Q (sensible)

50 2 70 45 0.72 2520

Heat Generation Occupants (Latent)

Description Cooling load

Sensible 680.63

latent 1693.13

Ventilation load(watt)

Cooling load (kW) Sensible 11.60

Cooling load k(W) Latent 6.46

Cooling load (kW) Total 18.07

PSYCHOMETRIC ANALYSIS

EQUIPMENT SELECTION

DUCTING DESIGN

CONCLUSION

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