Introduction RHProjek:CADANGAN MEROBOH BANGUNAN 4 TINGKAT DAN 3 TINGKAT SEDIA ADA DAN MEMBINA SEBUAH SERVICE APARTMENT 34 TINGKAT DI ATAS LOT 2943,2944 DAN 2945, SEK. 41, MUKIM BANDAR KUALA LUMPUR, KUALA LUMPUR.Ruj. :Kod :Subjek :REKABENTUK SISTEM PERPARITANNo Helaian :Ruj. Lukisan:Direkabentuk oleh:HafizDisemak oleh:Tarikh :Ruj.CatatanCADANGAN MEROBOH BANGUNAN 4 TINGKAT DAN 3 TINGKAT SEDIA ADADAN MEMBINA SEBUAH SERVICE APARTMENT 34 TINGKAT YANGMENGANDUNGI 8 TINGKAT TEMPAT LETAK KERETA MEKANIKAL, 1 UNITCAF DAN BILIK MESYUARAT, 8 UNIT JENIS A DI ARAS 26-29, 8 UNITJENIS B DI ARAS 26-29, 12 UNIT JENIS C DI ARAS 20-25, 10 UNIT JENIS DDI ARAS 10-19, 32 UNIT JENIS E DI ARAS 10-19 DAN 20-25, 32 UNIT JENIS FDI ARAS 10-19 DAN 20-25, 20 UNIT JENIS G DI ARAS 10-19, 1 UNIT RUANGKOLAM RENANG DI ARAS 32, 1 UNIT RUANG GYM DI ARAS 32 DI ATAS LOT2943,2944 DAN 2945, SEK. 41, MUKIM BANDAR KUALA LUMPUR,WILAYAH PERSEKUTUAN KUALA LUMPURPEMILIKDATO SRI MAT SHAH BIN SAFUANSafuan Centre Sdn BhdNo.50 Jalan Ampang50450 Kuala LumpurINTRODUCTIONRainwater harvesting is a technique of collecting rainfall as a supplementery sourceof water supply for households, commercial and industrial premesis, landscapewatering, livestock water and irrigation of agriculture. The planning and developmentof rainwater harvesting systems shall be carried out adhering to the principles andguidelines described in MSMA 2011 ,Chapter 6 : Rainwater HarvestingMETHOD OF CATCHMENTRainwater harvesting using roof catchment is the easiest and most commonmethod, the water will be channel trough pipes and transport from catchment areato the storage. Rainwater demand depends on several factor including number ofpeople using water and average comsumption per person. In this study therainwater only use for gardening or lanscape watering. The calculation only basedon estimate only, if the demand of water higher than rainwater collected, raw waterfrom domestic demand shall be used.

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Rainwater HarvestingProjek:Ruj. :Kod :Subjek :Rainwater HarvestingNo Helaian :Ruj. Lukisan:Direkabentuk oleh:HafizDisemak oleh:Tarikh :Ruj.PENGIRAANCatatanCompute annual Rain water demand (m3)Tab. 6.1Assume : Landscape watering about 30 minute with 20 litres per minuteChapter 6Use (Appliance)UnitAverage water useTotal water use (l/day)(m/s 6-5)Gardening30 minutes20 litres/minute600The annual rainwater demand =365daysx600l/day=219m3monthly rainwater demand=18.25m3Tank size estimationrooftop catchment, Ar=2001m2Eq. 6.4.5St=0.01ArChapter 6(m/s 6-7)St=tank size (m3)Ar=rooftop catchment area (m2)so,St=0.01x2001=20.01m3~20m3Provide20m3Note:The tank size for malaysia regardless of location is 1m3 for roof of 100m2it is equivalent to store 10mm of rainfall with 100m2 of roof area.Compute average annual rainwater yield (m3)Tab. 6.4For Kuala Lumpur, Average Annual Rainwater Yield (AARY) for20.01m3tankChapter 6size:(m/s 6-8)AARY for kuala lumpur=94x20.01=1880.94m3Compute persentage of water yield over rainwater demandPercentage of rainwater yield over rainwater demand=1880.94x100219=858.8767123288%

Ldischarge outlet