scholarly journals Research on Hedging Rules Based on Water Supply Priority and Benefit Loss of Water Shortage—A Case Study of Tianjin, China

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 778 ◽  
Author(s):  
Baohui Men ◽  
Zhijian Wu ◽  
Huanlong Liu ◽  
Yangsong Li ◽  
Yong Zhao
Keyword(s):  
Water Supply ◽  
High Efficiency ◽  
Water Shortage ◽  
Urban Water ◽  
Urban Water Supply ◽  
Domestic Water ◽  
Water Shortages ◽  
Water Users ◽  
Hedging Rules

When a city’s water demand cannot be fully satisfied, the hedging rule can reduce water loss by limiting water supply in advance. Based on water supply priority and benefit loss of water shortage for different users, this paper improved the objective function of hedging rules considering the benefit loss of water shortage. At the same time, according to the idea of restricting water supply by water users in turn, improved hedging rules (IHR) are applied to the urban water supply in Tianjin. The conclusions achieved from this study are as follows: (1) IHR increased water supply assurance rates for domestic water with high-priority and avoided destructive water shortages in agricultural water with low-priority. (2) IHR can better reduce the destructive loss caused by a large number of water shortages and the loss of production caused by a small numbers of water shortages than traditional hedging rules, which ensures high efficiency of water supply during the dry period. The results show that the IHR can improve the operational performance of the urban water supply.

Population Growth and Water Supply

2016 ◽  
pp. 231-252 ◽  
Author(s):  
Patrick Brandful Cobbinah ◽  
Dennis Kwadwo Okyere ◽  
Eric Gaisie
Keyword(s):  
Population Growth ◽  
Water Supply ◽  
Urban Water ◽  
Urban Water Supply ◽  
Rapid Urbanization ◽  
African Cities ◽  
Sustainable Planning ◽  
Micro Level ◽  
Urban Population Growth

With recent and expected record-breaking urban population growth in developing countries, African cities ought to undertake or revisit sustainable planning efforts necessary for managing population growth and dealing with rapid urbanization. This chapter examines how African cities are responding and adapting to rapid population growth in the area of water supply using Ghana as a case study. From a macro perspective, the chapter looks at the nature and extent of population growth and water supply in Africa, with a focus on Ghana. At the micro level, an analysis of the water supply chain in Ghanaian cities, focusing on distribution, equity and accessibility is presented. The chapter further presents a discussion on the way forward regarding urban water supply in Ghana in particular and Africa in general. The chapter concludes with key findings and directions for further research, in relation to population growth and urban water supply.

TECHNICAL AND ECONOMIC VIABILITY OF THE HYDROPOWER PLANT IMPLEMENTATION ON THE URBAN WATER SUPPLY NETWORK: CASE STUDY - WTP PACAS JOÂO MONLEVADE

2017 ◽  
Author(s):  
Marina Júnia Vilela Caldeira ◽  
Rieder Oliveira Neto ◽  
Christian Jeremi R. Coronado ◽  
gilmar silva ◽  
Geraldo Magalhães ◽  
...  
Keyword(s):  
Water Supply ◽  
Hydropower Plant ◽  
Economic Viability ◽  
Urban Water ◽  
Supply Network ◽  
Urban Water Supply ◽  
Water Supply Network

scholarly journals Study of reclaimed water system in downtown Los Angeles based on system dynamics theory

2020 ◽  
Vol 144 ◽  
pp. 01003
Author(s):  
Gang Wang ◽  
Qingbo Wen ◽  
Liming HU ◽  
Jay N MEEGODA
Keyword(s):  
Water Resources ◽  
Los Angeles ◽  
Water Supply ◽  
Reclaimed Water ◽  
Water System ◽  
Water Shortage ◽  
Urban Water ◽  
Urban Water Supply ◽  
Over Exploitation ◽  
Supply Costs

The shortage of water resources has seriously restricted the development of cities. Unconventional water resources is of great significance for sustainable development. As a city lack of water, Los Angeles plans to develop reclaimed water as an important component of urban water supply under the conditions of drought and over exploitation of groundwater. In order to provide a basis for urban reclaimed water construction planning, this paper developed a system dynamic model to provide scientific suggestions for the planning of reclaimed water. According to the analysis of Los Angeles water system, the model divides the system into reclaimed water system, urban water consumption system, urban water supply system and water supply cost system. The degree of water shortage, urban water supply, water supply cost, and reclaimed water production were chosen as the model index for the requirement of plan design. The historical data was employed to verify the model, indicating that the model is reliable. Then the plans under different rates of growth of reclaimed water were designed. According to the comprehensive analysis of the model index, the second plan was considered to be the optimal one: increase the local water supply in Los Angeles to 50 percent of the total by 2035 and reduce purchases by 50 percent. Finally, Reclaimed water accounts for 30% of the city’s water supply, meanwhile, water supply costs decline 10%.

Population Growth and Water Supply

2020 ◽  
pp. 96-117 ◽  
Author(s):  
Patrick Brandful Cobbinah ◽  
Dennis Kwadwo Okyere ◽  
Eric Gaisie
Keyword(s):  
Population Growth ◽  
Water Supply ◽  
Urban Water ◽  
Urban Water Supply ◽  
Rapid Urbanization ◽  
African Cities ◽  
Sustainable Planning ◽  
Micro Level ◽  
Urban Population Growth

With recent and expected record-breaking urban population growth in developing countries, African cities ought to undertake or revisit sustainable planning efforts necessary for managing population growth and dealing with rapid urbanization. This chapter examines how African cities are responding and adapting to rapid population growth in the area of water supply using Ghana as a case study. From a macro perspective, the chapter looks at the nature and extent of population growth and water supply in Africa, with a focus on Ghana. At the micro level, an analysis of the water supply chain in Ghanaian cities, focusing on distribution, equity and accessibility is presented. The chapter further presents a discussion on the way forward regarding urban water supply in Ghana in particular and Africa in general. The chapter concludes with key findings and directions for further research, in relation to population growth and urban water supply.

Sign in / Sign up

Export Citation Format

Share Document