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Elias Tasca, Mohsen Besharat, Helena M. Ramos, Edevar Luvizotto, Jr. and Bryan Karney
Air valves are protective devices often used in pressurised water pipelines, ideally admitting air to limit sub-atmospheric pressures and controlling the release of entrapped air. This work summarises a comprehensive sensitivity analysis of the transient...
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Oscar E. Coronado-Hernández, Vicente S. Fuertes-Miquel, Mohsen Besharat and Helena M. Ramos
The emptying procedure is a common operation that engineers have to face in pipelines. This generates subatmospheric pressure caused by the expansion of air pockets, which can produce the collapse of the system depending on the conditions of the installa...
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Oscar E. Coronado-Hernández, Vicente S. Fuertes-Miquel, Mohsen Besharat, Helena M. Ramos
Pág. 1 - 15
The emptying procedure is a common operation that engineers have to face in pipelines. This generates subatmospheric pressure caused by the expansion of air pockets, which can produce the collapse of the system depending on the conditions of the installa...
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Oscar Pozos-Estrada, Alejandro Sánchez-Huerta, José Agustín Breña-Naranjo and Adrián Pedrozo-Acuña
Pág. 1 - 17
This paper describes the most important results of a theoretical, experimental and in situ investigation developed in connection with a water supply pumping pipeline failure. This incident occurred after power failure of the pumping system that caused th...
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Oscar Pozos-Estrada, Alejandro Sánchez-Huerta, José Agustín Breña-Naranjo and Adrián Pedrozo-Acuña
This paper describes the most important results of a theoretical, experimental and in situ investigation developed in connection with a water supply pumping pipeline failure. This incident occurred after power failure of the pumping system that caused th...
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Dongwoo Nam, Miyeon Kwon, Juhea Kim and Bummo Ahn
Harnesses can be used in various applications, such as entertainment, rescue operations, and medical applications. Because users are supported on the harness for a long time, they should feel comfortable wearing the harnesses. However, existing commercia...
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Daniel G. Allasia, Liriane Élen Böck, Jose G. Vasconcelos, Leandro C. Pinto, Rutineia Tassi, Bruna Minetto, Cristiano G. Persch and Robson L. Pachaly
Transient flows in stormwater systems can lead to damaging and dangerous operational conditions, as exemplified by geysering events created by the uncontrolled release of entrapped air pockets. Extreme rain and associated rapid inflows may result in air ...
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Mohsen Besharat, Maria Teresa Viseu, Helena M. Ramos
Pág. 1 - 16
An experimental assessment of an air pocket (AP), confined in a compressed air vessel (CAV), has been investigated under several different water hammer (WH) events to better define the use of protection devices or compressed air energy storage (CAES) sys...
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Mohsen Besharat, Maria Teresa Viseu and Helena M. Ramos
An experimental assessment of an air pocket (AP), confined in a compressed air vessel (CAV), has been investigated under several different water hammer (WH) events to better define the use of protection devices or compressed air energy storage (CAES) sys...
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Aboubacar Badamassi, Deyi Xu and Boubacar Hamidou Leyla
Residential combustion of fuels, especially solid, for cooking, heating and other activities generates high level emissions that considerably contribute to indoor and outdoor air pollutants concentrations, which adversely affect human health and are like...
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Lin Li, David Z. Zhu and Biao Huang
Rapid filling/emptying of pipes is commonly encountered in water supply and sewer systems, during which pressure transients may cause unexpected large pressure and/or geyser events. In the present study, a linearized analytical model is first developed t...
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