KERAJAAN MALAYSIA JABATAN AGAMA ISLAM WILAYAH PERSEKUTUAN

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1 KERAJAAN MALAYSIA JABATAN AGAMA ISLAM WILAYAH PERSEKUTUAN CADANGAN PEMBINAAN SEMULA MASJID AR-RAHIMAH KG. PANDAN, KUALA LUMPUR YANG MENGANDUNGI SEBUAH MASJID 3 TINGKAT, RUMAH KAKITANGAN, DEWAN SERBAGUNA / TASKA & 2 UNIT RUMAH SAMPAH DI ATAS LOT-LOT 4341, 5589 & SEBAHAGIAN RIZAB KERAJAAN, MUKIM AMPANG, WILAYAH PERSEKUTUAN KUALA LUMPUR LAPORAN REKABENTUK (WATER RETICULATION) JANUARI 2015 DEISEDIAKAN OLEH: JURUTERA PERUNDING MARAK BERSEKUTU SDN. BHD. No.48-C, Jalan Suarasa 8/4, Bandar Tun Hussein Onn, 43200, Cheras, Selangor Tel: / 5979 Fax: jpmarakbersekutu@gmail.com

2 CADANGAN PEMBINAAN SEMULA MASJID AR-RAHIMAH KG. PANDAN, KUALA LUMPUR YANG MENGANDUNGI SEBUAH MASJID 3 TINGKAT, RUMAH KAKITANGAN, DEWAN SERBAGUNA / TASKA & 2 UNIT RUMAH SAMPAH DI ATAS LOT-LOT 4341, 5589 & SEBAHAGIAN RIZAB KERAJAAN, MUKIM AMPANG, WILAYAH PERSEKUTUAN KUALA LUMPUR UNTUK TETUAN JABATAN AGAMA ISLAM WILAYAH PERSEKUTUAN NO CONTENTS 1 BACKGROUND CALCULATION OPEN SYSTEM 2 a) DOMESTIC SYSTEM b) HYDRANT SYSTEM APPENDIX 3 a) TABLE FOR WATER DEMAND b) TABLE OF PEAK FACTOR c) DRAWING d) APPROVAL LETTER FROM SYABAS

3 ENGINEERING REPORT 1.0 GENERAL 1.1 Project Introduction & Site Location The owner Majlis Agama Islam Wilayah Persekutuan is proposed project site is located on Lot - lot 4341, 5589 and government lot, Mukim of Ampang, Wilayah Persekutuan Kuala Lumpur The total project area is 1.44 acres ( i.e., 5,850 m²). The locality of the project site falls under the jurisdiction of Dewan Bandaraya Kuala Lumpur. The location of the site is attached 1.2 Design Reference & Calculations a) The design is complying with the Water reticulation system design used by Syarikat Bekalan Air Selangor Sdn Bhd,SYABAS Guidelines b) All analysis for water reticulation by Loop Method applied (Hardy-Cross method) c) Data ODL = 80.0 m (from SYABAS) at existing pipe d) Total Water Demands in gallon per day ( refer to Table 1 = Average Water Demand (gpd)) so, total water demand for this MASJID= 65,200 gal/day e) Friction Loss Using Hazen-William Formula Roughness Coefficient, C = 130 (HDPE) refer data pipe Diameter of Pipes, D = 150mm (for all pipes) Table data pipe :- Q = k. C. A. R S 0.54 dengan Q = Kadar aliran (m 3 /s) C = Pekali kekasaran Hazen-Williams (tiada unit) A = Luas aliran (m 2 ) R = Radius hidraulik (m) k = Pemalar (0.85 untuk unit SI)

4 1.3 Design Flow Peak flow have be determined with formula as follow Peak Flow = Peak Factor x Average Flow Q peak = f x Q average Where = f = peak coefficient. Peak coefficient value can determine according to below table: - a) 1.2 = Peak flow factor for design of pipe from tap-off point to elevated water tank / suction tank b) 2.5= Peak flow factor for design of pipe from tap-off point to individual building under gravity flow c) peak factors to be determined based on the type of distribution d) average flow is the total daily demand requirement divided by 24 hours Looping and branching system was considered to provide in design criteria Calculation for domestic system (Masjid) Design Calculation Normal Flow = 1 Peak Flow = 2.5 Calculation for hydrant system (for fire flow) Design Calculation Peak Flow Factor = 2.5 Min HL/KM = Max HL/KM = 2 Residual Head = 10 Calculation for building system (for branching system) Design Calculation Normal Flow = 1 Peak Flow = Reference: MWA Design Guidelines for Water Supply Systems published by Water Supply by Malaysia Water Association Design Criteria and Standards for water supply system published Cawangan Bekalan Air, Jabatan Kerja Raya, Malaysia

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6 Total Water Demand No. Bil (person) Bangunan Keperluan (gal/day) Kuantiti (gal) unit Masjid 3 tingkat 11 gpd/per 55, Rumah Kakitangan (A) (4 unit) 330/each 1, Dewan Serbaguna 5,500 gpd/each 5, Taska (4 bilik) 7 gpd/ student 1, Rumah Kakitangan (B) (6 unit) 330/each 1,980 Jumlah 65,200 gal/day Domestic System (LOOP) 1 Total Water Demands : 65,200 gallon Total Q in L/S : ( 65,200 x ) / ( 24 x 60 x 60 ) : 3.43 lit/sec 2 Normal Flow : 1.0 : 3.43 lit/sec x 1.0 : 3.43 lit/sec 3 Peak Flow : 2.5 : 3.43 lit/sec x 2.5 : 8.58 lit/sec Using Hazen-William Formula Roughness Coefficient, C = 100 (DI) Roughness Coefficient, C = 130 (HDPE) Adopt Diameter of Pipes, D = 150mm dia Breakdown (From M & E) 1 Water Tank A : 55,000 gallon ( masjid) α in L/S : ( 55,000 x ) / ( 24 x 60 x 60 ) : 2.90 lit/sec 2 Water Tank B : 3,300 gallon ( rumah kakitangan (A) + (B)) : (3,300 x ) / ( 24 x ) : lit / sec Level From Ground MASJID : m + ( m ) : m RUMAH KAKITANGAN : m + ( m ) : m m = High from ground to building ( Water Tank Location ) 2m ( water tank + slab) 12m (height of masjid)

7 ` For Fire Flow Total Fire Flow for Hydrant Fully Open Total in α L/S : ( 300 gallon x ) lit / ( 60)min : lit / sec Peak Flow : 2.5 : x 2.5 : lit / sec Using Hazen-William Formula Roughness Coefficient, C = 130 Adopt Diameter of Pipes, D = 150mm dia (HDPE 12.5)

8 RUMAH KAKITANGAN (A) + (B) (BRANCING SYSTEM) Total Demands : 3,300 gallon (assumption) : ( 3,300 x ) / ( 24 x 60 x 60 ) : lit / sec Using Hazen-William Formula Roughness Coefficient, C = 130 Adopt Diameter of Pipes, D = 150mm dia (HDPE 12.5) All the system analysis by computer

9 CALCULATION FOR DOMESTIC SYSTEM

10 Masjid Ar-Rahimah (Domestic) MT103 : PIPE NETWORK ANALYSIS VERSION : 1.0 (JUNE'85) Job title : WATER RETICULATION ANALYSIS FOR PEAK FLOW Number of nodes Number of pipes Minimum flow correction....1 litres/sec Node data NODE NO. DRAW OFF HYDRAULIC HEAD REDUCED LEVEL RESIDUAL HEAD litres/sec m m m C Pipe data NA NB DIA LGTH C R FLOW VELOCITY HD.LOSS HY.GRAD. mm m litres/sec m/sec m m/1000m Page 1

11 CALCULATION FOR HYDRANT SYSTEM (FIRE FLOW)

12 Hydrant (H1) MT103 : PIPE NETWORK ANALYSIS VERSION : 1.0 (JUNE'85) Job title : WATER RETICULATION ANALYSIS FOR PEAK FLOW Number of nodes... 4 Number of pipes... 3 Minimum flow correction....1 litres/sec Node data NODE NO. DRAW OFF HYDRAULIC HEAD REDUCED LEVEL RESIDUAL HEAD litres/sec m m m C Pipe data NA NB DIA LGTH C R FLOW VELOCITY HD.LOSS HY.GRAD. mm m litres/sec m/sec m m/1000m NUMBER OF REITERATIONS = 27 **End of program execution** --- NUMBER OF REITERATIONS = 27 Page 1

13 Hydrant (H2) MT103 : PIPE NETWORK ANALYSIS VERSION : 1.0 (JUNE'85) Job title : WATER RETICULATION ANALYSIS FOR PEAK FLOW Number of nodes... 6 Number of pipes... 5 Minimum flow correction....1 litres/sec Node data NODE NO. DRAW OFF HYDRAULIC HEAD REDUCED LEVEL RESIDUAL HEAD litres/sec m m m C Pipe data NA NB DIA LGTH C R FLOW VELOCITY HD.LOSS HY.GRAD. mm m litres/sec m/sec m m/1000m NUMBER OF REITERATIONS = 65 **End of program execution** --- NUMBER OF REITERATIONS = 65 **End of program execution** Page 1

14 Hydrant (H3) MT103 : PIPE NETWORK ANALYSIS VERSION : 1.0 (JUNE'85) Job title : WATER RETICULATION ANALYSIS FOR PEAK FLOW Number of nodes... 5 Number of pipes... 4 Minimum flow correction....1 litres/sec Node data NODE NO. DRAW OFF HYDRAULIC HEAD REDUCED LEVEL RESIDUAL HEAD litres/sec m m m C Pipe data NA NB DIA LGTH C R FLOW VELOCITY HD.LOSS HY.GRAD. mm m litres/sec m/sec m m/1000m NUMBER OF REITERATIONS = 60 **End of program execution** --- Page 1