2022
DOI: 10.1021/acsestwater.1c00455
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Reliability and Economic Analysis of a Rainwater-Harvesting System for a Commercial Building with a Large Rooftop Area

Abstract: The problem of water shortages faced by many countries including the country that having sufficient water source needs to be provided a practical engineering solution. The reliability analysis of rainwater harvesting system (RWHS) installed at the commercial building of AEON Taman Universiti located in Johor Barhu city of Malaysia was based on the rainfall pattern, rainwater use and rainwater storage tank. The economic analysis using the net present value (NPV), return on investment (ROI) and benefit-cost rati… Show more

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Cited by 6 publications
(5 citation statements)
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“…As mentioned previously (item 3.2), the RWHS's economic reliability was not evaluated. However, despite this limitation, the obtained results showed significant water savings and water bill reductions (scenarios 3 and 4; Table 6), which are in line with other research outcomes carried out in commercial buildings in Portugal [12,[34][35][36] and elsewhere in the world [4,8,16,28,29,33].…”
Section: Discussionsupporting
confidence: 88%
See 1 more Smart Citation
“…As mentioned previously (item 3.2), the RWHS's economic reliability was not evaluated. However, despite this limitation, the obtained results showed significant water savings and water bill reductions (scenarios 3 and 4; Table 6), which are in line with other research outcomes carried out in commercial buildings in Portugal [12,[34][35][36] and elsewhere in the world [4,8,16,28,29,33].…”
Section: Discussionsupporting
confidence: 88%
“…The existing research worldwide focuses predominantly on RWSH installation in residential buildings [17,[21][22][23][24][25][26][27]. Therefore, literature concerning commercial buildings is much more scarce and focused on large buildings [4,8,[28][29][30][31][32], and concerning small buildings is almost inexistent [33]. In Portugal, RWHS have received little research interest and are mainly focused on large commercial buildings [12,[34][35][36][37].…”
Section: Introductionmentioning
confidence: 99%
“…In addition, RWHS reduces the volume of stormwater drained into the drainage system, the flooding risks, and the pressure on natural water resources minimizing the ecological footprint through potable water [15]. Despite the existing research worldwide focusing predominantly on RWHS installation in residential [12][13][14][16][17][18][19][20] and commercial buildings [4,10,[21][22][23][24][25][26][27][28][29][30], implementing RWHS in metalworking industries facilities for cleaning or non-critical cooling processes and for activities when drinking water quality is not required (e.g., recharging flushing cisterns and irrigation of green spaces) can be an important tool, helping to reduce the pressure of this industry on traditional water sources [7].…”
Section: Introductionmentioning
confidence: 99%
“…22 Therefore, a promising strategy to break this impasse is to design new materials and/or technologies to harvest rain energy for supplementing the electricity production situation. 23,24 Following this line of thought, a feasible strategy for harvesting energy in rainy environments has been realized by reduced graphene oxide (rGO) material made by an easy hotpressing method, which opens up a novel era for the capture and applications of rain energy. 25 In this way, the actual yielded electrical signals can be collected, including currents over microamperes and voltage of hundreds of microvolts, and further power output under simulated rain.…”
Section: Introductionmentioning
confidence: 99%
“…22 Therefore, a promising strategy to break this impasse is to design new materials and/or technologies to harvest rain energy for supplementing the electricity production situation. 23,24…”
Section: Introductionmentioning
confidence: 99%