Rainwater harvesting potential for southwest Nigeria using daily water balance model

Imteaz, Monzur Alam; Adeboye, Omotayo B.; Rayburg, Scott; Shanableh, Abdallah

doi:10.1016/j.resconrec.2012.02.007

Cited by 111 publications

(54 citation statements)

References 14 publications

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“…However, volumetric reliability does not capture inter-annual variability of rainfall, and statistical analyses of the yield (or volumetric reliabilities) obtained in each year of simulation have been used to incorporate this variability [25,27]. The effect of inter-annual rainfall variability has also been assessed by analysing RWH performance for dry, normal and wet years [29] or for a typical dry year [32]. Since South Africa experiences large inter-annual variability of rainfall [3], the RWH guidelines to be developed in the current study needed to incorporate inter-annual rainfall variability and to also fully integrate reliability (the quantifier of variability) into the regression equations of the model.…”

Section: Introductionmentioning

confidence: 99%

Generalized Storage–Yield–Reliability Relationships for Analysing Shopping Centre Rainwater Harvesting Systems

Ndiritu

Moodley

Guliwe

2017

Water

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Abstract:The objective of this study was to develop guidelines for analysing rainwater harvesting (RWH) systems of shopping centres in South Africa. A model consisting of three dimensionless relationships relating rainwater supply and demand to storage capacity, yield and reliability was formulated. Data from daily simulation of potential RWH systems of 19 shopping were used to obtain the relationships. The simulations revealed within-year storage behaviour with considerable variation of annual yield. By applying the Weibull plotting position formula, yield-reliability relationships were derived. The aim to maximize yield and reliability whilst minimizing storage identified Pareto-optimal combinations of the three variables and these combinations were used to develop two dimensionless relationships. An additional relationship based on the dependence of the slope of the yield-reliability plots on yield was formulated to enable analysis of hydrologically non-optimal systems. Verification tests using four RWH systems obtained results that matched those from simulation and the model could therefore be applied for RWH feasibility analysis and preliminary design. This study highlights the need to incorporate inter-annual variability in RWH analysis and shows how reliability can be used to quantify this. This study further demonstrates how reliability can be fully integrated into regression relationships for generalized RWH analysis.

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Section: Introductionmentioning

confidence: 99%

Generalized Storage–Yield–Reliability Relationships for Analysing Shopping Centre Rainwater Harvesting Systems

Ndiritu

Moodley

Guliwe

2017

Water

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“…These authors designed a methodology to determine the size of tanks of rainwater storage at the household level, considering that the distribution of rainfall can vary from one point to another of the city. Concerning their storage capacity, Imteaz et al [8,9] and Rahman et al [10] indicated that daily rainfall analysis is expected to produce more realistic rainwater tank sizing than using monthly rainfall data.…”

Section: Introductionmentioning

confidence: 99%

Estimating the Rainwater Potential per Household in an Urban Area: Case Study in Central Mexico

Lizárraga-Mendiola

Vázquez‐Rodríguez

Blanco-Piñón

et al. 2015

Water

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Abstract:In cities with problems of aridity and a shortage of drinking water supply, there is an urgent need to establish alternatives for an adequate water management program. This study proposes an estimation through which users can select a rainwater harvesting system for non-drinking water consumption. For the cities of Pachuca and Mineral de la Reforma, State of Hidalgo, Central Mexico, the historical record of rainfall analyzed covers a period of 33 years . We calculated the monthly volume of rainwater harvestable from roof areas (VR, m

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“…In fact, rainwater harvesting has been studied in many countries as a way of promoting potable water savings [44,45]. Considering the environmental conditions of Dalian, its rainfall distribution is uneven, both annually and seasonally.…”

Section: Discussionmentioning

confidence: 99%

Dual-Level Material and Psychological Assessment of Urban Water Security in a Water-Stressed Coastal City

Huang

Yin

et al. 2015

Sustainability

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Abstract:The acceleration of urbanization and industrialization has been gradually aggravating water security issues, such as water shortages, water pollution, and flooding or drought disasters and so on. Water security issues have become a great challenge to urban sustainable development. In this context, we proposed a dual-level material and psychological assessment method to assess urban water security. Psychological security coefficients were introduced in this method to combine material security and residents' security feelings. A typical water-stressed coastal city in China (Dalian) was chosen as a case study. The water security status of Dalian from 2010 to 2012 was analysed dynamically. The results indicated that the Dalian water security statuses from 2010 to 2012 were basically secure, but solutions to improve water security status and solve water resource problems are still required. This dual-level material and psychological assessment for urban water security has improved conventional material assessment through the introduction of psychological security coefficients, which can benefit decision-making for urban water planning, management and protection.

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Rainwater harvesting potential for southwest Nigeria using daily water balance model

Cited by 111 publications

References 14 publications

Generalized Storage–Yield–Reliability Relationships for Analysing Shopping Centre Rainwater Harvesting Systems

Generalized Storage–Yield–Reliability Relationships for Analysing Shopping Centre Rainwater Harvesting Systems

Estimating the Rainwater Potential per Household in an Urban Area: Case Study in Central Mexico

Dual-Level Material and Psychological Assessment of Urban Water Security in a Water-Stressed Coastal City

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