Variability in and mixtures among residential vacancies at granular levels: Evidence from municipal water consumption data

2021 ◽  
Vol 90 ◽  
pp. 101702
Author(s):  
Yongting Pan ◽  
Wen Zeng ◽  
Qingfeng Guan ◽  
Yao Yao ◽  
Xun Liang ◽  
...  
2013 ◽  
Vol 13 (2) ◽  
pp. 257-264 ◽  
Author(s):  
Marco Farina ◽  
Marco Maglionico ◽  
Marco Pollastri ◽  
Irena Stojkov

For most buildings considered to be of a public non-residential type there are insufficient published data to establish and compare the theoretical standards with actual consumption data. Therefore, water consumption per user in non-residential buildings is still a very complicated issue for engineers and designers involved in analysing water demand and water management. This is why linking water consumption and school occupancy is the goal of this paper, trying to set the basis for further design, conservation and educational interventions on this topic. This research integrates quantitative data of water consumption, through water metering and analysis, and historical data about users in buildings. We focused on consumptions for four types of schools: nurseries (0–3-year-old children), kindergartens (3–6 years), elementary schools (6–11 years) and secondary 1st grade schools (11–14 years). The results are that the rational basic demand for water is estimated as 48.8 l per pre-school student per day and 18.7 l per elementary/secondary school student per day. Therefore we found that younger children use more water on a daily basis than older ones, probably because they need more services, such as laundries and kitchens, whereas older students consume water mainly in restrooms.


2020 ◽  
Vol 10 (22) ◽  
pp. 8219
Author(s):  
Andrea Menapace ◽  
Ariele Zanfei ◽  
Manuel Felicetti ◽  
Diego Avesani ◽  
Maurizio Righetti ◽  
...  

Developing data-driven models for bursts detection is currently a demanding challenge for efficient and sustainable management of water supply systems. The main limit in the progress of these models lies in the large amount of accurate data required. The aim is to present a methodology for the generation of reliable data, which are fundamental to train anomaly detection models and set alarms. Thus, the results of the proposed methodology is to provide suitable water consumption data. The presented procedure consists of stochastic modelling of water request and hydraulic pipes bursts simulation to yield suitable synthetic time series of flow rates, for instance, inlet flows of district metered areas and small water supply systems. The water request is obtained through the superimposition of different components, such as the daily, the weekly, and the yearly trends jointly with a random normal distributed component based on the consumption mean and variance, and the number of users aggregation. The resulting request is implemented into the hydraulic model of the distribution system, also embedding background leaks and bursts using a pressure-driven approach with both concentrated and distributed demand schemes. This work seeks to close the gap in the field of synthetic generation of drinking water consumption data, by establishing a proper dedicated methodology that aims to support future water smart grids.


Water Policy ◽  
2014 ◽  
Vol 17 (4) ◽  
pp. 762-776 ◽  
Author(s):  
Bradley S. Jorgensen ◽  
John F. Martin ◽  
Meryl W. Pearce ◽  
Eileen M. Willis

Discussion in the water literature has called for research on the role of behavioral intentions in explanations of both water demand and water conservation. But previous research has suggested that individual-level motivations are not good predictors of metered household water consumption. Two possible reasons for the lack of association between intentions and actual water conservation are that: (i) conservation behaviors are habitual and (ii) conservation behaviors and intention are measured at different levels of analysis. These explanations were tested in a sample of 415 residential households who provided permission to access their water consumption billing records. The effects of intentions, habit strength, and their interaction were examined in single-person households where the alignment of theory and measurement were the same. While behavioral intentions were associated with self-reports of past water conservation and habit strength, none of these variables were good predictors of water conservation. The implications of these results for the development of attitude theory using metered consumption data are discussed.


Author(s):  
Thomas M. Fullerton ◽  
Katherine C. White ◽  
Wm Doyle Smith ◽  
Adam G. Walke

2021 ◽  
Vol 4 (1) ◽  
pp. 1-10
Author(s):  
Bayu Saputra ◽  
Slamet Winardi ◽  
Aryo Nugroho

Various public service institutions have increasingly improved their service quality. The existing constraints are corrected for the sake of consumer satisfaction. One of the public services is the clean water distribution system at Surabaya water enterprise. The water will be distributed as per the postpaid-metered or prepaid-metered recording user's clean water consumption. Exisitng postpaid-metered or prepaid-metered device in every househould must be checked by field officers regularly. This manual checking often causing problems of human errors. This study applied the Internet of Things (IoT) concept in automatic checking of postpaid-metered and prepaid-metered device in households. The customized and automatic clean water consumption recording device is built using the ESP32 module. The ESP32 will send the rest of the water consumption data to the server (cloud). This method is expected to automate solution and to create better services to the customers. The accuracy of the test results holds error tolerance value of 10.6%, in the test results with units of mL. The device is believed to be able to provide and alternative in water usage recording purpose.


Water ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 2827
Author(s):  
Shayma Albannay ◽  
Shinobu Kazama ◽  
Kumiko Oguma ◽  
Takashi Hashimoto ◽  
Satoshi Takizawa

In Abu Dhabi, in the United Arab Emirates (UAE), the population and water demand have nearly tripled in the last two decades. Thus, it has become critical to curtail the growing water demand. This study aimed to evaluate the efficacy of Abu Dhabi’s residential water demand management through the installation of water-saving fittings. The analysis of water consumption time-series data revealed that water consumption of the three water user categories was significantly different. Briefly: water-tariff exempt users consumed 95.19 m3/d/connection in 2019, followed by nationals with 5.14 m3/d/connection, and expats at 0.7 m3/d/connection. Nationals began saving water in 2011, which was earlier than the water tariff revision of 2015. In a newly developed area of Khalifa City, the water consumption of new residents was 46.0% less than that of old residents, indicating the effectiveness of water-saving fittings installed in new homes following the Housing Rules’ requirements. Then, based on the estimated number of new connections and the fittings’ saving efficiencies, we estimated that water-saving fittings contributed to 73.1% of the water savings since 2011. These results strongly recommend the introduction of an incentive or subsidy for owners of old houses to replace their outdated fittings with water-saving ones.


Sign in / Sign up

Export Citation Format

Share Document