detention pond software Phone 6012-710-2620

http://ift.tt/1MSLe3T Telephone call 6012 710 2620 The stormwater drainage design standard first issued by the Department of Irrigation and Drainage Malaysia in 2000 is the Urban Stormwater Management Manual for Malaysia or the Manual Saliran Mesra Alam (referred to as MSMA). It is mandatory for all engineers in Malaysia to design drainage system to comply with the requirements of MSMA. The Department of Irrigation and Drainage has completely updated the first edition of MSMA (referred to as MSMA1) with the publishing of the second edition (also known as MSMA2) about 11 years after its first edition. There are a lot of alterations in the second edition include (based on case studies done for Kuala Lumpur): The design storm has increased by up to 125% for 10 out of the fourteen rainfall stations in Kuala Lumpur. The design discharge using the Rational Method has increased by up to 131% for commercial and city area. For a factory site in Kuala Lumpur the Site Storage Requirement for On-Site Detention has increased by up to 233%. The storage volume of a detention pond has increased by up to 128%. The hike in the magnitudes of the main design parameters as described above can be attributed to the changes between the first and the second editions of MSMA as follows: 135 rainfall stations in Peninsular Malaysia with longer precipitation data. This gives rise to in higher rainfall intensities for certain durations and ARI's. Compared to the first edition where it was divided into east and west coast of the Peninsula for the derivation of the storm temporal pattern, West Malaysia is now grouped into five regions. The changes in temporal patterns give rise to different hydrograph peaks and shapes. The coefficient of runoff in the Rational Method is now set according to the types of landuse, and not influenced by storm durations and intensities, and whether a catchment is urban/rural in condition. This gives rise to changes in the estimated peak discharge. The changes in the storm intensites, temporal patterns and the loss model used all influenced the Time-Area Method in MSMA2. The storm intensities for Kuala Lumpur have increased and the storm temporal pattern is more peaky, resulting in a more peaky discharge hydrograph. The Approximate Swinburne Method in MSMA2 gives higher Site Storage Requirement (SSR) than the Swinburne Method in the first edition. MSMA2 used the approximate method based on a set of approximation tables and this has resulted in an over estimation of the SSR's. The storage volume of a detention pond has increased using MSMA2 compared to the first edition because of the rise in the storm intensities, temporal patterns and the choice of loss rate. In view of the many changes in computational procedures between the first and second editions of MSMA, a tool is developed to help engineers to perform the computations using both editions precisely and to allow comparison be made of their changes speedily. The tool is a stormwater design software created for MSMA. The software is created by Ir. Dr. Quek Keng Hong- a professonal engineer in Malaysia. MSMAware also covers the East Malaysian state of Sarawak where more than a dozen storm stations and their temporal patterns are programmed into the software. DETENTION POND SOFTWARE : 00:00:05 detention pond software 00:00:07 detention basin software 00:00:09 design storm software 00:00:11 design rainfall software 00:00:13 drainage design software detention pond software Phone 6012-710-2620
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