Design and Development of a Green Storage Tank for Thermo-Controlled Water Supply

Author(s):  
Hung Cheng Tsai ◽  
Hung Jung Tsai ◽  
Fei Kung Hung
Author(s):  
Sammed Kothale

Due to A hydraulic ram (or water ram) pump is a simple, motorless device for pumping water at low flow rates. It uses the energy of flowing water to lift water from a stream, pond, or spring to an elevated storage tank or to a discharge point. It is suitable for use where small quantities of water are required and power supplies are limited, such as for household, garden, or livestock water supply. A hydraulic ram pump is useful where the water source flows constantly and the usable fall from the water source to the pump location is at least 3 feet.


2008 ◽  
Vol 56 ◽  
pp. 334-338
Author(s):  
Hung Cheng Tsai ◽  
Hung Jung Tsai ◽  
Fei Kung Hung

Water is an essential requirement in everyday life and global demand for clean usable water is increasing year by year. Therefore, developing and implementing effective water resource management and conservation strategies is vital. Generally speaking, most individuals (particularly senior citizens) prefer to use warm water when washing their hands or taking a bath. When hot water is left standing in the hot water pipe (i.e. the faucet is turned off), it will gradually cool. Consequently, when the faucet is first turned on, the water is generally allowed to run until it becomes sufficiently hot. Meanwhile, the original cooler water is simply drained away. Clearly, this approach is wasteful of both time and water. Therefore, this paper develops a green storage tank to perform a thermo-controlled water supply function. The tank is positioned between the hot water supply and the faucet and its operation is controlled by an electro-thermal thin-film heater and a thermo-controlled valve. When the faucet is turned on, the cooler water in the hot water pipe is directed into the tank. Once this water enters the tank, it is mixed with hot water stored inside until it acquires the desired temperature. The warmed water is then supplied to the faucet. When the water flowing through the hot pipe to the tank is already sufficiently warm for use, the thermo-controlled water supply function is automatically overridden, and the warm water is delivered directly to the faucet. The proposed green storage tank not only provides effective water and energy resource savings, but also provides a more convenient operation.


2007 ◽  
Vol 5 (2) ◽  
pp. 307-313 ◽  
Author(s):  
Jay P. Graham ◽  
James VanDerslice

Many communities along the US-México border remain without infrastructure for water and sewage. Residents in these communities often collect and store their water in open 55-gallon drums. This study evaluated changes in drinking water quality resulting from an intervention that provided large closed water storage tanks (2,500-gallons) to individual homes lacking a piped water supply. After the intervention, many of the households did not change the source of their drinking water to the large storage tanks. Therefore, water quality results were first compared based on the source of the household's drinking water: store or vending machine, large tank, or collected from a public supply and transported by the household. Of the households that used the large storage tank as their drinking water supply, drinking water quality was generally of poorer quality. Fifty-four percent of samples collected prior to intervention had detectable levels of total coliforms, while 82% of samples were positive nine months after the intervention (p < 0.05). Exploratory analyses were also carried out to measure water quality at different points between collection by water delivery trucks and delivery to the household's large storage tank. Thirty percent of the samples taken immediately after water was delivered to the home had high total coliforms (>10 CFU/100 ml). Mean free chlorine levels dropped from 0.43 mg/l, where the trucks filled their tanks, to 0.20 mg/l inside the household's tank immediately after delivery. Results of this study have implications for interventions that focus on safe water treatment and storage in the home, and for guidelines regarding the level of free chlorine required in water delivered by water delivery trucks.


Author(s):  
Дмитрий Викторович Титарев ◽  
Максим Владиславович Трунников ◽  
Павел Юрьевич Володин

Работа посвящена вопросам проектирования и разработки программного комплекса для автоматического расчета параметров и дальнейшего подбора станций водоснабжения. На основе проведенных расчетов программный комплекс позволяет формировать технико-коммерческое предложение на поставляемое оборудование. Особое внимание уделено подбору параметров насосной станции согласно данным о напоре и расходе в рабочей точке. Это является важной задачей в условиях отсутствия полноты данных, предоставляемых производителями оборудования. The work is devoted to the design and development of a software package for automatic calculation of parameters and further selection of water supply stations. Based on the calculations performed, the software package allows you to form a technical and commercial proposal for the equipment supplied. Particular attention is paid to the selection of the parameters of the pumping station according to the data on the head and flow rate at the operating point. This is an important task in the absence of completeness of data provided by equipment manufacturers.


2009 ◽  
Vol 60 (9) ◽  
pp. 2373-2382 ◽  
Author(s):  
A. Criminisi ◽  
C. M. Fontanazza ◽  
G. Freni ◽  
G. La Loggia

Apparent losses are usually caused by water theft, billing errors, or revenue meter under-registration. While the first two causes are directly related to water utility management and may be reduced by improving company procedures, water meter inaccuracies are considered to be the most significant and hardest to quantify. Water meter errors are amplified in networks subjected to water scarcity, where users adopt private storage tanks to cope with the intermittent water supply. The aim of this paper is to analyse the role of two variables influencing the apparent losses: water meter age and the private storage tank effect on meter performance. The study was carried out in Palermo (Italy). The impact of water meter ageing was evaluated in laboratory by testing 180 revenue meters, ranging from 0 to 45 years in age. The effects of the private water tanks were determined via field monitoring of real users and a mathematical model. This study demonstrates that the impact on apparent losses from the meter starting flow rapidly increases with meter age. Private water tanks, usually fed by a float valve, overstate meter under-registration, producing additional apparent losses between 15% and 40% for the users analysed in this study.


Author(s):  
Jaehyok Lim ◽  
Basar Ozar ◽  
Christopher E. Henry ◽  
Kevin B. Ramsden

An evaluation of the effects of geometry and water supply pressure on the void transport has been performed using RELAP5/MOD3.3 (patch03). Two different piping configurations were considered for a hypothetical nuclear power plant. The cases that were analyzed considered switchover between two different water supplies, i.e. condensate storage tank (CST) and essential service water system (SX) for a safety system that acted as the ultimate heat sink. In addition, two different pressures were considered for the pressure of SX to investigate the effect of supply water pressure on void transport. Results were interpreted based on the differences in the geometries of the piping configurations and supply water pressures.


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