scholarly journals EXPERIMENTAL STUDY ON BORE WAVE PRESSURE ACTING ON STORAGE TANK

2018 ◽  
pp. 44
Author(s):  
Susumu Araki ◽  
Wataru Kunimatsu ◽  
Shunyo Kitaguchi ◽  
Shun Iwasaki ◽  
Shin-ichi Aoki
Keyword(s):  
Experimental Study ◽  
Storage Tank ◽  
Tsunami Wave ◽  
Coastal Areas ◽  
Storage Tanks ◽  
Wave Load ◽  
Wave Pressure ◽  
Near Future

Storage tanks located in coastal areas can be damaged by tsunami. The damage can lead a spill of gas or oil, which cause an extensive fire. Another huge tsunami triggered by earthquake is predicted to strike Japan in the near future. Therefore, tsunami wave load acting on storage tanks has to be investigated. The authors have investigated the characteristics of tsunami wave load acting on a storage tank (Araki et al., 2017a; 2017b). In this study, bore wave pressure acting on a cylindrical storage tank was measured. The characteristic of the pressure was discussed.

Experimental study on tsunami wave load acting on storage tank in coastal area

2017 ◽  
Vol 50 ◽  
pp. 347-354 ◽  
Author(s):  
Susumu Araki ◽  
Wataru Kunimatsu ◽  
Shinji Nishiyama ◽  
Tomohiro Furuse ◽  
Shin-ichi Aoki ◽  
...  
Keyword(s):  
Experimental Study ◽  
Coastal Area ◽  
Storage Tank ◽  
Tsunami Wave ◽  
Wave Load

Evaluation of Tsunami Wave Loads Acting on Walls of Confined-Masonry-Brick and Concrete-Block Houses

2014 ◽  
Vol 9 (6) ◽  
pp. 976-983 ◽  
Author(s):  
Gaku Shoji ◽  
◽  
Hirofumi Shimizu ◽  
Shunichi Koshimura ◽  
Miguel Estrada ◽  
...  
Keyword(s):  
Pressure Distribution ◽  
Structural Damage ◽  
Failure Modes ◽  
Tsunami Wave ◽  
Concrete Block ◽  
Wave Loads ◽  
Wave Load ◽  
Confined Masonry ◽  
Wave Pressure ◽  
Horizontal Wave

Damage to confined-masonry-brick or concrete-block house was assessed for being subjected to a tsunami wave load. This study was prompted by recent three tsunamis – one during 2001 on the Near Coast of Peru, one in 2009 in the Samoa Islands, and one in 2010 in Maule, Chile. We analyzed 13 damaged walls from 10 single-storey houses located near the coastline. We focused on evaluating the tsunami wave pressure distribution on house walls. Based on the formula proposed by Asakura et al. (2000) to evaluate tsunami wave pressure distribution on a structural component located on land behind on-shore structures, which is used for designing a tsunami evacuation building, we identify the values of horizontal wave pressure indexain Asakura’s formula for walls and discuss the boundary value ofaat which a wall presents structural damage, such as in collapse and cracking failure modes.

scholarly journals Experimental Study for Damage Identification of Storage Tanks by Adding Virtual Masses

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 220 ◽  
Author(s):  
Jilin Hou ◽  
Pengfei Wang ◽  
Tianyu Jing ◽  
Łukasz Jankowski
Keyword(s):  
Experimental Study ◽  
Finite Element ◽  
Frequency Response ◽  
Response Function ◽  
Storage Tank ◽  
Frequency Response Function ◽  
Damage Identification ◽  
Fe Model ◽  
Storage Tanks ◽  
Identification Approach

This research proposes a damage identification approach for storage tanks that is based on adding virtual masses. First, the frequency response function of a structure with additional virtual masses is deduced based on the Virtual Distortion Method (VDM). Subsequently, a Finite Element (FE) model of a storage tank is established to verify the proposed method; the relation between the added virtual masses and the sensitivity of the virtual structure is analyzed to determine the optimal mass and the corresponding frequency with the highest sensitivity with respect to potential damages. Thereupon, the damage can be localized and quantified by comparing the damage factors of substructures. Finally, an experimental study is conducted on a storage tank. The results confirm that the proposed method is feasible and practical, and that it can be applied for damage identification of storage tanks.

scholarly journals Automatic Liquid Control System for Overhead Storage Tank in Households

2019 ◽  
Vol 8 (3) ◽  
pp. 2061-2063
Keyword(s):  
Drinking Water ◽  
Control System ◽  
Water Level ◽  
Fresh Water ◽  
Storage Tank ◽  
Primary Objective ◽  
Sound Waves ◽  
Storage Tanks ◽  
Water Leakage ◽  
Near Future

The scarcity of drinking water in near future attracts the attention of the researcher how to control the use of water as per the need. Now this is a major global problem rising in front of all to avoid the crisis of fresh water. Hence, it is not only extremely crucial to preserve and save water but also to reduce the unnecessary use of water. Especially, in many houses in India, there is unnecessary wastage of water due to unnoticed water leakage from faucets and overflow in overhead storage tanks. This is where automatic liquid control system comes into picture. The operation of liquid control system is based upon the fact that liquid primarily water acts as a hindrance for sound waves emitting from the ultrasonic sensor. Rise and fall of water level results in triggering on and off switch which further enables or disables the motor pump as per the requirement. This paper has achieved its primary objective i.e. noncontact liquid monitoring system employing Arduino Uno

STUDY ON TSUNAMI WAVE PRESSURE OF REGULARLY-ARRANGED CYLINDRES

2018 ◽  
Vol 74 (2) ◽  
pp. I_259-I_264
Author(s):  
Akio NAGAYAMA ◽  
Tomotaka TANAKA ◽  
Ryouga SAKAGUCHI ◽  
Ryoudai SUEYOSHI ◽  
Toshiyuki ASANO
Keyword(s):  
Tsunami Wave ◽  
Wave Pressure

EXPERIMENTAL STUDY ON RANDOM WAVE PRESSURE AFTER WAVE BREAKING ACTING ON SEAWALL ON LAND SIDE OF SHORELINE

2018 ◽  
Vol 74 (2) ◽  
pp. I_1063-I_1068
Author(s):  
Kenya TAKAHASHI ◽  
Yu SOUMA ◽  
Toshimasa ISHII ◽  
Takeshi NISHIHATA ◽  
Takeru MICHIMAE ◽  
...  
Keyword(s):  
Experimental Study ◽  
Wave Breaking ◽  
Random Wave ◽  
Wave Pressure

scholarly journals The effect of household storage tanks/vessels and user practices on the quality of water: a systematic review of literature

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Musa Manga ◽  
Timothy G. Ngobi ◽  
Lawrence Okeny ◽  
Pamela Acheng ◽  
Hidaya Namakula ◽  
...  
Keyword(s):  
Systematic Review ◽  
Water Quality ◽  
Storage Tank ◽  
Grey Literature ◽  
Water Storage ◽  
Storage Tanks ◽  
Water Storage Tank ◽  
Hygiene Practices ◽  
Quality Of Water ◽  
Vessel Material

Abstract Background Household water storage remains a necessity in many communities worldwide, especially in the developing countries. Water storage often using tanks/vessels is envisaged to be a source of water contamination, along with related user practices. Several studies have investigated this phenomenon, albeit in isolation. This study aimed at developing a systematic review, focusing on the impacts of water storage tank/vessel features and user practices on water quality. Methods Database searches for relevant peer-reviewed papers and grey literature were done. A systematic criterion was set for the selection of publications and after scrutinizing 1106 records, 24 were selected. These were further subjected to a quality appraisal, and data was extracted from them to complete the review. Results and discussion Microbiological and physicochemical parameters were the basis for measuring water quality in storage tanks or vessels. Water storage tank/vessel material and retention time had the highest effect on stored water quality along with age, colour, design, and location. Water storage tank/vessel cleaning and hygiene practices like tank/vessel covering were the user practices most investigated by researchers in the literature reviewed and they were seen to have an impact on stored water quality. Conclusions There is evidence in the literature that storage tanks/vessels, and user practices affect water quality. Little is known about the optimal tank/vessel cleaning frequency to ensure safe drinking water quality. More research is required to conclusively determine the best matrix of tank/vessel features and user practices to ensure good water quality.

scholarly journals Optimal Sizing of Rooftop Rainwater Harvesting Tanks for Sustainable Domestic Water Use in the West Bank, Palestine

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 573
Author(s):  
Sameer Shadeed ◽  
Sandy Alawna
Keyword(s):  
Storage Tank ◽  
Rainwater Harvesting ◽  
West Bank ◽  
Family Members ◽  
Optimal Size ◽  
Storage Tanks ◽  
Domestic Water ◽  
The West ◽  
Average Family ◽  
Rooftop Rainwater Harvesting

In highly water-poor areas, rooftop rainwater harvesting (RRWH) can be used for a self-sustaining and self-reliant domestic water supply. The designing of an optimal RRWH storage tank is a key parameter to implement a reliable RRWH system. In this study, the optimal size of RRWH storage tanks in the different West Bank governorates was estimated based on monthly (all governorates) and daily (i.e., Nablus) inflow (RRWH) and outflow (domestic water demand, DWD) data. In the estimation of RRWH, five rooftop areas varying between 100 m2 and 300 m2 were selected. Moreover, the reliability of the adopting RRWH system in the different West Bank governorates was tested. Two-time series scenarios were assumed: Scenario 1, S1 (12 months, annual) and scenario 2, S2 (8 months, rainy). As a result, reliable curves for preliminary estimation of optimal RRWH storage tanks for the different West Bank governorates were obtained. Results show that the required storage tank for S1 (annual) is more than that of the S2 (rainy) one. The required storage tank to fulfill DWD is based on the average rooftop area of 150 m2, the average family members of 4.8, and the average DWD of 90 L per capita per day (L/c/d) varies between (75 m3 to 136 m3) and (24 m3 to 84 m3) for S2 for the different West Bank governorates. Further, it is found that the optimal RRWH tank size for the 150 m2 rooftop ranges between 20 m3 (in Jericho) to 75 m3 (in Salfit and Nablus) and between 20 m3 (in Jericho) to 51 m3 (in Jerusalem) for S1 and S2 scenarios, respectively. Finally, results show that the implementation of an RRWH system for a rooftop area of 150 m2 and family members of 4.8 is reliable for all of the West Bank governorates except Jericho. Whereas, the reliability doesn’t exceed 19% for the two scenarios. However, the reduction of DWDv is highly affecting the reliability of adopting RRWH systems in Jericho (the least rainfall governorate). For instance, a family DWDv of 3.2 m3/month (25% of the average family DWDv in the West Bank) will increase the reliability at a rooftop area of 150 m2 to 51% and 76% for S1 and S2, respectively.

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