Hydraulic and Electric Regulation of a Prototype for Real-Time Control of Pressure and Hydropower Generation in a Water Distribution Network
Publication: Journal of Water Resources Planning and Management
Volume 144, Issue 11
Abstract
Coupling pressure management and energy recovery in water distribution networks (WDNs) is an appealing topic in the field of optimal management of water systems. The use of turbines or pumps as turbines (PATs) allows for reducing leakage within the network while also recovering energy that would otherwise dissipate, by means of pressure reducing valves (PRVs). Unlike water supply systems, where operating conditions remain essentially constant over time, a real-time control (RTC) is required in WDNs because of the variability of pressure and flow discharge during the day. To this end, a prototype for RTC of a WDN was presented and discussed in a recent paper, in which constant rotational speed of the impeller was considered. To overcome such a limitation and maximize energy recovery, an inverter was coupled to the prototype. A mathematical model of the prototype was developed and the decision variables were calculated by solving an optimization problem via the YALMIP tool of MATLAB at varying conditions of inflow discharge, pressure head at the inlet, and desired pressure head at the control node. The mathematical model was further validated through preliminary laboratory experiments, showing good agreement between simulated and actual values.
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References
Arriaga, R. 2010. “Pump as turbine: A pico-hydro alternative in Lao People’s Democratic Republic.” Renewable Energy 35 (5): 1109–1115. https://doi.org/10.1016/j.renene.2009.08.022.
Campisano, A., E. Creaco, and C. Modica. 2010. “RTC of valves for leakage reduction in water supply networks.” J. Water Resour. Plann. Manage. 136 (1): 138–141. https://doi.org/10.1061/(ASCE)0733-9496(2010)136:1(138).
Campisano, A., C. Modica, and L. Vetrano. 2012. “Calibration of proportional controllers for the RTC of pressures to reduce leakage in water distribution networks.” J. Water Resour. Plann. Manage. 138 (4): 377–384. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000197.
Carravetta, A., G. Del Giudice, O. Fecarotta, and H. M. Ramos. 2012. “Energy production in water distribution networks: A PAT design strategy.” Water Resour. Manage. 26 (13): 3947–3959. https://doi.org/10.1007/s11269-012-0114-1.
Carravetta, A., G. Del Giudice, O. Fecarotta, and H. M. Ramos. 2013. “PAT design strategy for energy recovery in water distribution networks by electrical regulation.” Energies 6 (1): 411–424. https://doi.org/10.3390/en6010411.
Corcoran, L., A. McNabola, and P. Coughlan. 2016. “Optimization of water distribution networks for combined hydropower energy recovery and leakage reduction.” J. Water Resour. Plann. Manage. 142 (2): 04015045. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000566.
Creaco, E., A. Campisano, M. Franchini, and C. Modica. 2017. “Unsteady flow modeling of pressure real-time control in water distribution networks.” J. Water Resour. Plann. Manage. 143 (9): 04017056. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000821.
Creaco, E., and T. Walski. 2017. “Economic analysis of pressure control for leakage and pipe burst reduction.” J. Water Resour. Plann. Manage. 143 (2): 04017074. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000846.
Dannier, A., A. Del Pizzo, M. Giugni, N. Fontana, G. Marini, and D. Proto. 2015. “Efficiency evaluation of a micro-generation system for energy recovery in water distribution networks.” In Proc., 2015 Int. Conf. on Clean Electrical Power, 689–694. New York: IEEE.
Derakhshan, S., and A. Nourbakhsh. 2008. “Experimental study of characteristic curves of centrifugal pumps working as turbines in different specific speeds.” Exp. Therm. Fluid Sci. 32 (3): 800–807. https://doi.org/10.1016/j.expthermflusci.2007.10.004.
Fecarotta, O., C. Arico, A. Carravetta, R. Martino, and H. M. Ramos. 2015. “Hydropower potential in water distribution networks: Pressure control by PATs.” Water Resour. Manage. 29 (3): 699–714. https://doi.org/10.1007/s11269-014-0836-3.
Fontana, N., M. Giugni, L. Glielmo, and G. Marini. 2016. “Real time control of a prototype for pressure regulation and energy production in water distribution networks.” J. Water Resour. Plann. Manage. 142 (7): 04016015. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000651.
Fontana, N., M. Giugni, L. Glielmo, G. Marini, and F. Verrilli. 2018a. “Real time control of a PRV in water distribution networks for pressure regulation: Theoretical framework and laboratory experiments.” J. Water Resour. Plann. Manage. 144 (1): 04017075. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000855.
Fontana, N., M. Giugni, L. Glielmo, G. Marini, and R. Zollo. 2018b. “Real time control of pressure for leakage reduction in water distribution network: Field experiments.” J. Water Resour. Plann. Manage. 144 (3): 04017096. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000887.
Fontana, N., M. Giugni, and D. Portolano. 2012. “Energy production policy in water distribution networks.” J. Water Resour. Plann. Manage. 138 (3): 237–244. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000179.
Giugni, M., N. Fontana, and A. Ranucci. 2014. “Optimal location of PRVs and turbines in water distribution systems.” J. Water Resour. Plann. Manage. 140 (9): 06014004. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000418.
Giustolisi, O., A. Campisano, R. Ugarelli, D. Laucelli, and L. Berardi. 2015. “Leakage management: WDNetXL pressure control module.” Procedia Eng. 119: 82–90. https://doi.org/10.1016/j.proeng.2015.08.856.
Jafari, R., M. J. Khanjani, and H. R. Esmaeilian. 2015. “Pressure management and electric power production using pumps as turbines.” J. Am. Water Works Assoc. 107 (7): E351–E363. https://doi.org/10.5942/jawwa.2015.107.0083.
Lofberg, J. 2004. “YALMIP: A toolbox for modeling and optimization in MATLAB.” In Proc., IEEE Int. Symp. on Computer Aided Control Systems Design, 2004, 284–289. Piscataway, NJ: IEEE.
Muhammetoglu, A., I. E. Karadirek, O. Ozen, and H. Muhammetoglu. 2017. “Full-scale PAT application for energy production and pressure reduction in a water distribution network.” J. Water Resour. Plann. Manage. 143 (8): 04017040. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000795.
Page, P. R., A. M. Abu-Mahfouz, and S. Yoyo. 2017. “Parameter-less remote real-time control for the adjustment of pressure in water distribution systems.” J. Water Resour. Plann. Manage. 143 (9): 04017050. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000805.
Patelis, M., V. Kanakoudis, and K. Gonelas. 2016. “Pressure management and energy recovery capabilities using PATs.” Procedia Eng. 162: 503–510. https://doi.org/10.1016/j.proeng.2016.11.094.
Pugliese, F., F. De Paola, N. Fontana, M. Giugni, and G. Marini. 2016. “Experimental characterization of two pumps as turbines for hydropower generation.” Renewable Energy 99: 180–187. https://doi.org/10.1016/j.renene.2016.06.051.
Ramos, H., and A. Borga. 1999. “Pumps as turbines: An unconventional solution to energy production.” Urban Water 1 (3): 261–263. https://doi.org/10.1016/S1462-0758(00)00016-9.
Samora, I., P. Manso, M. J. Franca, A. J. Schleiss, and H. M. Ramos. 2016. “Opportunity and economic feasibility of inline microhydropower units in water supply networks.” J. Water Resour. Plann. Manage. 142 (11): 04016052. https://doi.org/10.1061/(ASCE)WR.1943-5452.0000700.
Stepanoff, A. J. 1948. Centrifugal and axial flow pumps: Theory, design and application. New York: Wiley.
Su, P., and B. Karney. 2015. “Micro hydroelectric energy recovery in municipal water systems: A case study for Vancouver.” Urban Water J. 12 (8): 678–690. https://doi.org/10.1080/1573062X.2014.923919.
Williams, A. 1996. Pumps as turbines: A user’s guide. London: ITDG.
Williams, A., and R. Simpson. 2009. “Pico hydro: Reducing technical risks for rural electrification.” Renewable Energy 34 (8): 1986–1991. https://doi.org/10.1016/j.renene.2008.12.011.
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Published In
Journal of Water Resources Planning and Management
Volume 144 • Issue 11 • November 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Jan 30, 2018
Accepted: May 30, 2018
Published online: Sep 10, 2018
Published in print: Nov 1, 2018
Discussion open until: Feb 10, 2019
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