Gupta Indrani, Bassin Jagdish, Kelkar Prakash, Gupta Apurba
National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440 020.
Indian J Environ Health. 2003 Jan;45(1):39-48.
Water supply in old Jammu city is not evenly distributed due to undulating terrain and increase in population density. A study was undertaken to suggest measures for improvement to the distribution system. The paper presents results of analysis carried out using computer package OPT DIS developed at NEERI for optimal design of distribution sytem including system augmentation and reorganization measures needed for the design year 2021. The analysis of zone 1 of the distribution network indicates that seven pipes need alteation to cater to the demand for the year 2006 and fifteen pipes need replacement for the year 2021. New pipelines (13 nos.) are to be provided in parallel to the existing pipes in Upper Reach and 28 pipes in Lower Reach to ensure the service standards of 225 lpcd with minimum residual head of 17 m. Efficient algorithm for augmentations of water supply systems comprising combination of dead-end and loop network are having much wider application in developing countries. The software OPT DIS developed at NEERI was found to be extremely powerful and user friendly for addressing such systems with varying demand pattern, peaking factor, pipe condition, water supply modes and design horizones.
查谟老城区的供水因地形起伏和人口密度增加而分布不均。开展了一项研究，以提出改善分配系统的措施。本文介绍了使用由印度国家环境工程研究所开发的计算机软件包OPT DIS进行分析的结果，该软件用于分配系统的优化设计，包括2021年设计年份所需的系统扩充和重组措施。对配水管网1区的分析表明，2006年有7根管道需要改造以满足需求，2021年有15根管道需要更换。在上游，要与现有管道并行铺设13根新管道，在下游铺设28根新管道，以确保达到225升/人/日的服务标准，最小剩余水头为17米。由死端和环状网络组合而成的高效供水系统扩充算法在发展中国家有更广泛的应用。结果发现，印度国家环境工程研究所开发的OPT DIS软件功能极其强大且用户友好，可用于处理具有不同需求模式、峰值系数、管道状况、供水模式和设计期限的此类系统。
