design storm software Call 6012-710-2620

http://ift.tt/1MSLe3T Phone call 6012 710-2620 In 2000 the Department of Irrigation and Drainage Malaysia first released the urban drainage design standard known as the Urban Stormwater Management Manual for Malaysia or the Manual Saliran Mesra Alam Malaysia, MSMA. Fullfilment of the requirements of MSMA when building drainage works is required legally of all engineers in Malaysia. Eleven years after its first publication, DID has completely updated the first edition of MSMA (also known as MSMA1) with the publishing of the second edition (also known as MSMA2). There are many differences in the second edition include (based on case studies done for Kuala Lumpur): Ten out of the fourteen storm stations in Kuala Lumpur have its design storm risen by up to 126%. The design flow using the Rational Method has risen by up to 131% for commercial and city area. The Site Storage Requirement for OSD for a factory lot in Kuala Lumpur has risen by up to 233%, Detention pond has risen by up to 130% in the volume. The differences between the first and the second editions of MSMA give rise to the hike in the values of the main design parameters as follows: 135 rainfall stations in Peninsular Malaysia with longer storm data. This gives rise to in higher storm intensities for certain durations and ARI's. Peninsular Malaysia is now grouped into five regions for the computation of the rainfall temporal pattern, compared to previously where it was divided into east and west coast of the Peninsula. The dissimilar hydrograph peaks and shapes caused by the differences in temporal patterns. The coefficient of runoff in the Rational Method is now determined according to the types of landuse, and not affected by storm durations and intensities, and whether a catchment is urban/rural in condition. This resulted in differences in the estimated peak flow. The Time-Area Method in MSMA2 is affected by the differences in the storm intensites, temporal patterns and the loss model used. The storm intensities for Kuala Lumpur have increased and the rainfall temporal pattern is more peaky, resulting in a more peaky flow hydrograph. The Approximate Swinburne Method in MSMA2 resulted in 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 Site Storage Requirements. Compared to the first edition, the increase in the storm intensities, temporal patterns and the selection of loss rate have given rise to a rise in the volume of a detention pond using the second edition. In view of the many differences 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 differences quickly. The tool is a drainage design software designed 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 included into the software. DESIGN STORM SOFTWARE : 00:00:05 design storm software 00:00:06 design rainfall software 00:00:08 drainage design software 00:00:10 Manual Saliran Mesra Alam Malaysia 00:00:11 Urban Stormwater Management Manual for Malaysia design storm software Call 6012-710-2620
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