helena.ramos@tecnico.ulisboa.pt
+351 218 418 151

Helena Margarida Machado da Silva Ramos

Associate Professor

Scientific activity:

  • Hydropower,
  • Hydraulic Transients,
  • Pumped-storage,
  • Water and Energy nexus,
  • Hydrodynamic and Hemodynamic

Institution

  • Instituto Superior Técnico

Department

  • DECivil

Research Group

  • Hydraulics

Publications

ReferenceJournalAUTHOR(S) CERISDATE
Pérez-Sánchez, M.; Ferreira, A.R.; López-Jiménez, P.A.; Ramos, H.M. (2018) Design strategy to maximize recovery energy towards smart water grids: case study. Urban Water Journal, 15, n.º 4. pp 329-337. doi: 10.1080/1573062X.2018.1459747 Urban Water Journal
Helena Margarida Machado da Silva Ramos
2018
Pérez-Sánchez, M.; Sánchez-Romero, F.J.; Ramos, H.M.; López-Jiménez, P.A. (2017) Energy recovery in existing water networks: Towards greater sustainability. Water, 9, n.º 2. pp 97-106. doi: 10.3390/w9020097 Water
Helena Margarida Machado da Silva Ramos
2017
Simão, M.; Mora-Rodríguez, J.; Ramos, H.M. (2016) Computational dynamic models and experiments in the fluid-structure interaction of pipe systems. Canadian Journal of Civil Engineering, 43, n.º 1. pp 60-72. doi: 10.1139/cjce-2015-0253 Canadian Journal of Civil Engineering
Helena Margarida Machado da Silva Ramos
2016
Mora-Rodríguez, J.; Ramos, H.M.; López-Jiménez, P.A. (2013) Pathogen intrusion events in drinking water distribution systems. Tecnología y Ciencias del Agua, 4, n.º 3. pp 5-25. doi: SEM DOI 2013-003 Tecnología y Ciencias del Agua
Helena Margarida Machado da Silva Ramos
2013
Samora, I.; Manso, P.; Franca, M.J.; Schleiss, A.J.; Ramos, H.M. (2016) Opportunity and Economic Feasibility of Inline Microhydropower Units in Water Supply Networks. Journal of Water Resources Planning and Management-ASCE, 142, n.º 11. doi: 10.1061/(ASCE)WR.1943-5452.0000700 Journal of Water Resources Planning and Management-ASCE
Helena Margarida Machado da Silva Ramos
2016
Carravetta, A.; Giudice, G.; Fecarotta, O.; Ramos, H.M. (2013) PAT design strategy for energy recovery in water distribution networks by electrical regulation. Energies, 6, n.º 1. pp 411-424. doi: 10.3390/en6010411 Energies
Helena Margarida Machado da Silva Ramos
2013
Martins, N.M.C.; Brunone, B.; Meniconi, S.; Ramos, H.M.; Covas, D.I. (2018) Efficient computational fluid dynamics model for transient laminar flow modeling: Pressure wave propagation and velocity profile changes. Journal of Fluids Engineering, 140, n.º 1. doi: 10.1115/1.4037504 Journal of Fluids Engineering
Nuno Miguel da Conceição Martins
Helena Margarida Machado da Silva Ramos
Dídia Isabel Cameira Covas
2018
Martins, N.M.C.; Brunone, B.; Meniconi, S.; Ramos, H.M.; Covas, D.I. (2017) CFD and 1D approaches for the unsteady friction analysis of low Reynolds number turbulent flows. Journal of Hydraulic Engineering, 143, n.º 2. doi: 10.1061/(ASCE)HY.1943-7900.0001372 Journal of Hydraulic Engineering
Nuno Miguel da Conceição Martins
Helena Margarida Machado da Silva Ramos
Dídia Isabel Cameira Covas
2017
Samora, I.; Hasmatuchi, V.; Münch-Alligné, C.; Franca, M.J.; Schleiss, A.J.; Ramos, H.M. (2016) Experimental characterization of a five blade tubular propeller turbine for pipe inline installation. Renewable Energy, 95. pp 356-366. doi: 10.1016/j.renene.2016.04.023 Renewable Energy
Helena Margarida Machado da Silva Ramos
2016
Frijns, J.; 3et, E.C.; Carriço, N.; Covas, D.; Monteiro, A.J.; Ramos, H.M.; Bolognesi, A.; Bragalli, C.; Baki, S.; Makropoulos, C. (2015) Management tools for hydro energy interventions in water supply systems. Water Practice and Technology, 10, n.º 2. pp 214-228. doi: 10.2166/wpt.2015.024 Water Practice and Technology
Helena Margarida Machado da Silva Ramos
Dídia Isabel Cameira Covas
2015
González-Alvarez, A.; Coronado-Hernández, O.E.; Fuertes-Miquel, V.S.; Ramos, H.M. (2018) Effect of the non-stationarity of rainfall events on the design of hydraulic structures for runoff management and its applications to a case study at Gordo Creek watershed in Cartagena de Indias, Colombia. Fluids, 3, n.º 2. doi: 10.3390/fluids3020027 Fluids
Helena Margarida Machado da Silva Ramos
2018
Martins, N.; Delgado, J.; Ramos, H.M.; Covas, D. (2017) Maximum transient pressures in a rapidly filling pipeline with entrapped air using a CFD model. Journal of Hydraulic Research, 55, n.º 4. pp 506-519. doi: 10.1080/00221686.2016.1275046 Journal of Hydraulic Research
Nuno Miguel da Conceição Martins
Helena Margarida Machado da Silva Ramos
Dídia Isabel Cameira Covas
2017
Pérez-Sánchez, M.; Sánchez-Romero, F.J.; Ramos, H.M.; López-Jiménez, P.A. (2016) Modeling Irrigation Networks for the Quantification of Potential Energy Recovering: A Case Study. Water, 8, n.º 6. doi: 10.3390/w8060234 Water
Helena Margarida Machado da Silva Ramos
2016
Simão, M.; Mora, J.; Ramos, H.M. (2015) Fluid–structure interaction with different coupled models to analyse an accident occurring in a water supply system. Journal of Water Supply: Research and Technology – AQUA, 64, n.º 3. pp 302-315. doi: 10.2166/aqua.2014.128 Journal of Water Supply: Research and Technology – AQUA
Helena Margarida Machado da Silva Ramos
2015
Besharat, M.; Tarinejad, R.; Ramos, H.M. (2016) The effect of water hammer on a confined air pocket towards flow energy storage system. Journal of Water Supply: Research and Technology-Aqua, 65, n.º 2. pp 116-126. doi: 10.2166/aqua.2015.081 Journal of Water Supply: Research and Technology-Aqua
Helena Margarida Machado da Silva Ramos
2016
Coronado-Hernández, O.; Fuertes-Miquel, V.; Besharat, M.; Ramos, H.M. (2018) Subatmospheric pressure in a water draining pipeline with an air pocket. Urban Water Journal, 15, n.º 4. pp 346-352. doi: 10.1080/1573062X.2018.1475578 Urban Water Journal
Helena Margarida Machado da Silva Ramos
2018
Capelo, B.; Pérez-Sánchez, M.; Fernandes, J.F.P.; Ramos, H.M.; López-Jiménez, P.A.; Costa Branco, P.J. (2017) Electrical behaviour of the pump working as turbine in off grid operation. Applied Energy, 208. pp 302-311. doi: 10.1016/j.apenergy.2017.10.039 Applied Energy
Helena Margarida Machado da Silva Ramos
2017
Martins, S.C.; Ramos, H.M.; Almeida, A.B. (2015) Conceptual analogy for modelling entrapped air action in hydraulic systems. Journal of Hydraulic Research, 53, n.º 5. pp 678-686. doi: 10.1080/00221686.2015.1077353 Journal of Hydraulic Research
Helena Margarida Machado da Silva Ramos
António Patrício de Sousa Betâmio de Almeida
2015
Martins, N.M.C.; Carriço, N.J.G.; Ramos, H.M.; Covas, D.I.C. (2014) Velocity-distribution in pressurized pipe flow using CFD: Accuracy and mesh analysis. Computers & Fluids, 105. pp 218-230. doi: 10.1016/j.compfluid.2014.09.031 Computers & Fluids
Nuno Miguel da Conceição Martins
Helena Margarida Machado da Silva Ramos
Dídia Isabel Cameira Covas
2014
Fecarotta, O.; Carravetta, A.; Ramos, H.M.; Martino, R. (2016) An improved affinity model to enhance variable operating strategy for pumps used as turbines. Journal of Hydraulic Research, 54, n.º 3. pp 332-341. doi: 10.1080/00221686.2016.1141804 Journal of Hydraulic Research
Helena Margarida Machado da Silva Ramos
2016
Simão, M.; Ferreira, J.M.; Mora-Rodríguez, J.; Ramos, H.M. (2017) Structural analysis of two different stent configurations. Computer Methods in Biomechanics and Biomedical Engineering, 20, n.º 8. pp 869-883. doi: 10.1080/10255842.2017.1306058 Computer Methods in Biomechanics and Biomedical Engineering
Helena Margarida Machado da Silva Ramos
2017
Soares, A.K.; Covas, D.I.C.; Ramos, H.M. (2013) Damping analysis of hydraulic transients in pump-rising main systems. Journal of Hydraulic Engineering-ASCE, 139, n.º 2. pp 233-243. doi: 10.1061/(ASCE)HY.1943-7900.0000663 Journal of Hydraulic Engineering-ASCE
Helena Margarida Machado da Silva Ramos
Dídia Isabel Cameira Covas
2013
Pérez-Sánchez, M.; Sánchez-Romero, F.J.; Ramos, H.M.; López-Jiménez, P.A. (2017) Optimization strategy for improving the energy efficiency of irrigation systems by micro hydropower: Practical application. Water, 9, n.º 10. doi: 10.3390/w9100799 Water
Helena Margarida Machado da Silva Ramos
2017
Pérez-Sánchez, M.; Sánchez-Romero, F.J.; Ramos, H.M.; López-Jiménez, P.A. (2017) Calibrating a flow model in an irrigation network: Case study in Alicante, Spain. Spanish Journal of Agricultural Research, 15, n.º 1. doi: 10.5424/sjar/2017151-10144 Spanish Journal of Agricultural Research
Helena Margarida Machado da Silva Ramos
2017
Pérez-Sánchez, M.; Sánchez-Romero, F.J.; López-Jiménez, P.A.; Ramos, H.M. (2018) PATs selection towards sustainability in irrigation networks: Simulated annealing as a water management tool. Renewable Energy, 116, Part A. pp 234-249. doi: 10.1016/j.renene.2017.09.060 Renewable Energy
Helena Margarida Machado da Silva Ramos
2018
Martins, N.M.C.; Brunone, B.; Meniconi, S.; Ramos, H.M.; Covas, D.I.C. (2017) Efficient CFD model for transient laminar flow modeling: pressure wave propagation and velocity profile changes. Journal of Fluids Engineering, 140, n.º 1. doi: 10.1115/1.4037504 Journal of Fluids Engineering
Nuno Miguel da Conceição Martins
Helena Margarida Machado da Silva Ramos
Dídia Isabel Cameira Covas
2017
Pérez-Sánchez, M.; López-Jiménez, P.A.; Ramos, H.M. (2018) Modified affinity laws in hydraulic machines towards the best efficiency line. Water Resources Management, 32, n.º 3. pp 829-844. doi: 10.1007/s11269-017-1841-0 Water Resources Management
Helena Margarida Machado da Silva Ramos
2018
Simão, M.; Mora-Rodríguez, J.; Ramos, H.M. (2016) Design Criteria for Suspended Pipelines Based on Structural Analysis. Water, 8, n.º 6. doi: 10.3390/w8060256 Water
Helena Margarida Machado da Silva Ramos
2016
Ramos, H.M.; Simão, M.; Borga, A. (2013) Experiments and CFD analyses for a new reaction microhydro propeller with five blades. Journal of Energy Engineering-ASCE, 139, n.º 2. pp 109-117. doi: 10.1061/(ASCE)EY.1943-7897.0000096 Journal of Energy Engineering-ASCE
Helena Margarida Machado da Silva Ramos
2013
Coronado-Hernández, O.;Fuertes-Miquel, V.; Besharat, M.; Ramos, H.M. (2017) Experimental and numerical analysis of a water emptying pipeline using different air valves. Water, 9, n.º 2. pp 98-107. doi: 10.3390/w9020098 Water
Helena Margarida Machado da Silva Ramos
2017
Meirelles, G.; Brentan, B.; Izquierdo, J.; Ramos, H.M.; Luvizotto Jr., E. (2018) Trunk network rehabilitation for resilience improvement and energy recovery in water distribution networks. Water, 10, n.º 6. doi: 10.3390/w10060693 Water
Helena Margarida Machado da Silva Ramos
2018
Simão, M.; Ferreira, J.M.; Mora-Rodríguez, J.; Ramos, H.M. (2016) Identification of DVT diseases using numerical simulations. Medical & Biological Engineering & Computing, 54, n.º 10. pp 1591-1609. doi: 10.1007/s11517-015-1446-9 Medical & Biological Engineering & Computing
Helena Margarida Machado da Silva Ramos
2016
Carravetta, A.; Giudice, G.; Fecarotta, O.; Ramos, H.M. (2013) Pump as Turbine ( PAT) design in water distribution network by system effectiveness. Water, 5, n.º 3. pp 1211-1225. doi: 10.3390/w5031211 Water
Helena Margarida Machado da Silva Ramos
2013
Samora, I.; Manso, P.; Franca, M.J.; Schleiss, A.J.; Ramos, H.M. (2016) Energy Recovery Using Micro-Hydropower Technology in Water Supply Systems: The Case Study of the City of Fribourg. Water, 8, n.º 8. doi: 10.3390/w8080344 Water
Helena Margarida Machado da Silva Ramos
2016
Apollonio, C.; Covas, D.; Marinis, G. de; Leopardi, A.; Ramos, H.M. (2014) Creep functions for transients in HDPE pipes. Urban Water Journal, 11, n.º 2. pp 160-166. doi: 10.1080/1573062X.2012.758295 Urban Water Journal
Helena Margarida Machado da Silva Ramos
Dídia Isabel Cameira Covas
2014
Lima, G.M.; Luvizotto Jr, E.; Brentan, B.M.; Ramos, H.M. (2018) Leakage control and energy recovery using variable speed pumps as turbines. Journal of Water Resources Planning and Management, 144, n.º 1. doi: 10.1061/(ASCE)WR.1943-5452.0000852 Journal of Water Resources Planning and Management
Helena Margarida Machado da Silva Ramos
2018
Samora, I.; Franca, M.J.; Schleiss, A.J.; Ramos, H.M. (2016) Simulated annealing in optimization of energy production in a water supply network. Water Resources Management, 30, n.º 4. pp 1533-1547. doi: 10.1007/s11269-016-1238-5 Water Resources Management
Helena Margarida Machado da Silva Ramos
2016
Simão, M.; Mora-Rodríguez, J.; Ramos, H.M. (2015) Mechanical interaction in pressurized pipe systems: Experiments and numerical models. Water, 7, n.º 11. pp 6321-6350. doi: 10.3390/w7116321 Water
Helena Margarida Machado da Silva Ramos
2015
Fecarotta, O.; Ramos, H.M.; Derakhshan, S.; del Giudice, G.; Carravetta, A. (2018) Fine tuning a PAT hydropower plant in a water supply network to improve system effectiveness. Journal of Water Resources Planning and Management, 144, n.º 8. doi: 10.1061/(ASCE)WR.1943-5452.0000961 Journal of Water Resources Planning and Management
Helena Margarida Machado da Silva Ramos
2018
Martins, N.M.C.; Soares, A.K.; Ramos, H.M.; Covas, D.I.C. (2016) CFD modeling of transient flow in pressurized pipes. Computers & Fluids, 126. pp 129-140. doi: 10.1016/j.compfluid.2015.12.002 Computers & Fluids
Nuno Miguel da Conceição Martins
Helena Margarida Machado da Silva Ramos
Dídia Isabel Cameira Covas
2016
Mora-Rodríguez, J.; Delgado-Galván, X.; Ortiz-Medel, J.; Ramos, H.M.; Fuertes-Miquel, V.; López-Jiménez, P. (2015) Pathogen intrusion flows in water distribution systems: according to orifice equations. Journal of Water Supply: Research and Technology – AQUA, 64, n.º 8. pp 857-869. doi: 10.2166/aqua.2015.121 Journal of Water Supply: Research and Technology – AQUA
Helena Margarida Machado da Silva Ramos
2015
Besharat, M.; Tarinejad, R.; Aalami, M.T.; Ramos, H.M. (2016) Study of a compressed air vessel for controlling the pressure surge in water networks: CFD and experimental analysis. Water Resources Management, 30, n.º 8. pp 2687-2702. doi: 10.1007/s11269-016-1310-1 Water Resources Management
Helena Margarida Machado da Silva Ramos
2016
Carravetta, A.; Fecarotta, O.; Ramos, H.M. (2018) A new low-cost installation scheme of PATs for pico-hydropower to recover energy in residential areas. Renewable Energy, 125. pp 1003-1014. doi: 10.1016/j.renene.2018.02.132 Renewable Energy
Helena Margarida Machado da Silva Ramos
2018
Simão, M.; Mora-Rodríguez, J.; Ramos, H.M. (2018) Dynamic response behind an accident occurred in a main WSS. European Journal of Environmental and Civil Engineering, 22, n.º 3. pp 267-287. doi: 10.1080/19648189.2016.1194320 European Journal of Environmental and Civil Engineering
Helena Margarida Machado da Silva Ramos
2018
Fecarotta, O.; Arico, C.; Carravetta, A.; Martino, R.; Ramos, H.M. (2015) Hydropower Potential in Water Distribution Networks: Pressure Control by PATs. Water Resources Management, 29, n.º 3. pp 699-714. doi: 10.1007/s11269-014-0836-3 Water Resources Management
Helena Margarida Machado da Silva Ramos
2015
Samora, I.; Hasmatuchi, V.; Münch-Alligné, C.; Franca, M.J.; Schleiss, A.; Ramos, H.M. (2016) Energy production with a tubular propeller turbine. Grenoble:
Helena Margarida Machado da Silva Ramos
2016
Costa, L.H.M.; Prata, B.A.; Ramos, H.M.; Castro, M.A.H. (2016) A branch-and-bound algorithm for optimal pump scheduling in water distribution networks. Water Resources Management, 30, n.º 3. pp 1037-1052. doi: 10.1007/s11269-015-1209-2 Water Resources Management
Helena Margarida Machado da Silva Ramos
2016
Pérez-Sánchez, M.; López-Jiménez, P.A.; Ramos, H.M. (2018) PATs operating in water networks under unsteady flow conditions: control valve manoeuvre and overspeed effect. Water, 10, n.º 4. doi: 10.3390/w10040529 Water
Helena Margarida Machado da Silva Ramos
2018
Simão, M.; Ferreira, J.M.; Mora-Rodríguez, J.; Fragata, J.; Ramos, H.M. (2017) Behaviour of two typical stents towards a new stent evolution. Medical & Biological Engineering & Computing, 55, n.º 6. pp 1019-1037. doi: 10.1007/s11517-016-1574-x Medical & Biological Engineering & Computing
Helena Margarida Machado da Silva Ramos
2017
Besharat, M.; Viseu, M.T.; Ramos, H.M. (2017) Experimental study of air vessel behavior for energy storage or system protection in water hammer events. Water, 9, n.º 1. doi: 10.3390/w9010063 Water
Helena Margarida Machado da Silva Ramos
2017
Ramos, H.M.; Teyssier, C.; López-Jiménez, P.A. (2013) Optimization of retention ponds to improve the drainage system elasticity for water-energy nexus. Water Resources Management, 27, n.º 8. pp 2889-2891. doi: 10.1007/s11269-013-0322-3 Water Resources Management
Helena Margarida Machado da Silva Ramos
2013
Ramos, H.M.; Teyssier, C.; Samora, I.; Schleiss, A.J. (2013) Energy recovery in SUDS towards smart water grids: A case study. Energy Policy, 62. pp 463-472. doi: 10.1016/j.enpol.2013.08.014 Energy Policy
Helena Margarida Machado da Silva Ramos
2013