A Study on Design Method and Effect Analysis of Rainwater Harvesting Facility for Efficient Use

Kang, Tae uk; Koo, Young Min; Lee, Sang Jin

doi:10.9798/kosham.2015.15.2.353

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…우리나라에서는 '물의 재이용 촉진 및 지원에 관한 법률' 제8조 제1항과 '물의 재이용 촉진 및 지원에 관한 법률 시행령' 제10조 및 '물의 재이용 촉진 및 지원에 관한 법률 시행규칙' 제4조에 따라 특정한 규모 이상의 공동주택, 학교, 골프장 등의 시설에 대하여 빗물이용시설을 설치하도록 규정하고 있다 (Kang et al, 2015). 또한, 서울, 부산, 인천, 세종, 수원 등 많은 지방자치단체에서는 지역별로 상이하긴 하지만, 빗물이용시설의 설치와 활용을 장려하는 정책 사업 을 시행하고 있다 (Seo, 2022).…”

Section: 서 론unclassified

A Design Method for Storage Capacity of Rainwater Harvesting Considering Economic Effectiveness

Kang¹,

Jin²,

Lee³

2022

J. Korean Soc. Hazard Mitig

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The use of rainwater harvesting facilities is increasing in accordance with national laws, institutional regulations, and administrative support from local governments in Korea. However, most of the plans for storage capacity of rainwater harvesting are characterized by institutional constraints and determined by the judgment of engineers. This study aimed to suggest a method for economically determining the storage capacity of rainwater harvesting. The study presented a mass balance equation that can evaluate rainwater reuse amount according to the size of rainwater harvesting, and then defined the cost and benefit factors for the installation and operation of rainwater harvesting. Net present value (NPV) and benefit–cost ratio (BCR) were used to analyze the economic effectiveness for each storage capacity of rainwater harvesting. The proposed method was applied to the rainwater harvesting in Cheongna District in Incheon, and the NPV was found appropriate for the evaluation of the economic effectiveness. According to the design report, for the rainwater harvesting planned to be 6,740 m<sup>3</sup>, the NPV was calculated to be −478 million KRW for a 30-year design life. Meanwhile, the optimal size considering economic effectiveness was 2,000 m<sup>3</sup>, and the NPV of the size was analyzed to be +1,738 million KRW. Therefore, economic analysis is suitable as an alternative to determine the appropriate size of rainwater harvesting.

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Section: 서 론unclassified

A Design Method for Storage Capacity of Rainwater Harvesting Considering Economic Effectiveness

Kang¹,

Jin²,

Lee³

2022

J. Korean Soc. Hazard Mitig

Self Cite

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“…이외에도 빗물이 용과 관련된 장기유출 해석을 통해 빗물이용시설의 수문학 적 평가가 수행되었다 (Kim et al, 2008;Yoo et al, 2008). 빗물이용시설 도입에 따른 경제성 평가와 효율적인 활용을 위한 용량산정 방법 및 설계방안과 그에 대한 효과를 분석한 연구가 수행되었으며 (Kim et al, 2014;Kang et al, 2015;Baek et al, 2018), Sim and Kim (2020)…”

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Quantitative Effect Analysis of Rainwater Harvesting System based on Water Balance Analysis

Sim¹,

Kim²,

Lee³

et al. 2022

J. Korean Soc. Hazard Mitig

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The rainwater harvesting system (RHS) is a facility installed in accordance with the ｢Act on promotion and support of water reuse｣ and is currently installed in various buildings such as apartment houses, business facilities, schools, and sports facilities. Rainwater is used for various needs, such as toilet flushing water, tree irrigation, road cleaning water, and landscaped facilities. In this study, rainwater utilization was calculated by performing a water demand-supply time series analysis through a hydrological water balance analysis. The water supply-supply time series water balance analysis was performed based on the recent ten-year period, and the water balance analysis for RHS analyzed the supply satisfaction, rainwater utilization, and rainwater coverage rates according to the demand scenarios of each facility. Through this method, it is expected to become a support tool for planning and operating the storage tank capacity of the target facility by confirming the rainwater utilization for various RHSs with different building uses and demand sources.

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Probabilistic solution to rainwater harvesting system and its impact on climate change

Sim¹,

Kim²

2020

Desalination and Water Treatment

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A Study on Design Method and Effect Analysis of Rainwater Harvesting Facility for Efficient Use

Cited by 4 publications

References 2 publications

A Design Method for Storage Capacity of Rainwater Harvesting Considering Economic Effectiveness

A Design Method for Storage Capacity of Rainwater Harvesting Considering Economic Effectiveness

Quantitative Effect Analysis of Rainwater Harvesting System based on Water Balance Analysis

Probabilistic solution to rainwater harvesting system and its impact on climate change

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