ENERGY CONSUMPTION ESTIMATION IN WATER DISTRIBUTION SYSTEMS USING FUZZY TECHNIQUES

2010 ◽  
Vol 9 (2) ◽  
pp. 249-256 ◽  
Author(s):  
Marcel Istrate ◽  
Gheorghe Grigoras
Keyword(s):  
Energy Consumption ◽  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution Systems ◽  
Fuzzy Techniques

scholarly journals Assessing variable speed pump efficiency in water distribution systems

2012 ◽  
Vol 5 (1) ◽  
pp. 47-65 ◽  
Author(s):  
A. Marchi ◽  
A. R. Simpson ◽  
N. Ertugrul
Keyword(s):  
Energy Consumption ◽  
Distribution Systems ◽  
Water Distribution ◽  
Greenhouse Gas Emission ◽  
Water Distribution Systems ◽  
Total Efficiency ◽  
Pump Efficiency ◽  
Variable Speed ◽  
Pump System ◽  
Pumping Rate

Abstract. Energy savings and greenhouse gas emission reductions are increasingly becoming important design targets in many industrial systems where fossil fuel based electrical energy is heavily utilised. In water distribution systems (WDSs) a significant portion of operational cost is related to pumping. Recent studies have considered variable speed pumps (VSPs) which aim to vary the operating point of the pump to match demand to pumping rate. Depending on the system characteristics, this approach can lead to considerable savings in operational costs. In particular, cost reductions can take advantage of the demand variability and can decrease energy consumption significantly. One of the issues in using variable speed pumping systems, however, is the total efficiency of the electric motor/pump arrangement under a given operating condition. This paper aims to provide a comprehensive discussion about the components of WDS that incorporate variable speed pumps (including electric motors, inverters and the pumps themselves) to provide an insight of ways of increasing the system efficiency and hence to reduce energy consumption. In addition, specific attention is given to selection of motor types, sizing, duty cycle of pump (ratio of on-time and time period), losses due to installation and motor faults. All these factors affect the efficiency of motor drive/pump system.

scholarly journals Assessing variable speed pump efficiency in water distribution systems

2012 ◽  
Vol 5 (1) ◽  
pp. 15-21 ◽  
Author(s):  
A. Marchi ◽  
A. R. Simpson ◽  
N. Ertugrul
Keyword(s):  
Energy Consumption ◽  
Distribution Systems ◽  
Water Distribution ◽  
Greenhouse Gas Emission ◽  
Water Distribution Systems ◽  
Total Efficiency ◽  
Pump Efficiency ◽  
Variable Speed ◽  
Pump System ◽  
Pumping Rate

Abstract. Energy savings and greenhouse gas emission reductions are increasingly becoming important design targets in many industrial systems where fossil fuel based electrical energy is heavily utilised. In water distribution systems (WDSs) a significant portion of operational cost is related to pumping. Recent studies have considered variable speed pumps (VSPs) which aim to vary the operating point of the pump to match demand to pumping rate. Depending on the system characteristics, this approach can lead to considerable savings in operational costs. In particular, cost reductions can take advantage of the demand variability and can decrease energy consumption significantly. One of the issues in using variable speed pumping systems, however, is the total efficiency of the electric motor/pump arrangement under a given operating condition. This paper aims to provide a comprehensive discussion about the components of WDS that incorporate variable speed pumps (including electric motors, variable frequency drives and the pumps themselves) to provide an insight of ways of increasing the system efficiency and hence to reduce energy consumption. In addition, specific attention is given to selection of motor types, sizing, duty cycle of pump (ratio of on-time and time period), losses due to installation and motor faults. All these factors affect the efficiency of motor drive/pump system.

scholarly journals Assessment of Electrical Load in Water Distribution Systems Using Representative Load Profiles-Based Method

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Gheorghe Grigoras
Keyword(s):  
Energy Consumption ◽  
Distribution System ◽  
Distribution Systems ◽  
Water Distribution ◽  
Water Distribution System ◽  
Water Distribution Systems ◽  
Electrical Energy ◽  
Optimal Operation ◽  
Electrical Load ◽  
Electrical Energy Consumption

The problem of optimal management of a water distribution system includes the determination of the operation regime for each hydrophore station. The optimal operation of a water distribution system means a maximum attention to assess the demands of the water, with minimum electrical energy consumption. The analysis of load profiles corresponding to a water distribution system can be the first step that water companies must make to assess the electrical energy consumption. This paper presents a new method to assess the electrical load in water distribution systems, taking into account the time-dependent evolution of loads from the hydrophore stations. The proposed method is tested on a real urban water distribution system, showing its effectiveness in obtaining the electrical energy consumption with a relatively low computational burden.

scholarly journals Smart metering use cases to increase water and energy efficiency in water supply systems

2014 ◽  
Vol 14 (5) ◽  
pp. 898-908 ◽  
Author(s):  
D. Loureiro ◽  
P. Vieira ◽  
C. Makropoulos ◽  
P. Kossieris ◽  
R. Ribeiro ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Distribution Systems ◽  
Water Distribution ◽  
Energy Use ◽  
Water Distribution Systems ◽  
Use Cases ◽  
Smart Metering ◽  
Related Energy ◽  
Detailed Level ◽  
High Level

Efficient water and energy use in water distribution systems is being limited by the lack of sufficient data about water and related energy consumption. Therefore, it is crucial to provide updated and continuous feedback information to water users. This paper describes relevant use cases to improve efficient water use and related energy consumption by water utilities and consumers through the use of smart metering technologies. A systematic approach was established to obtain a comprehensive list of possible functionalities, using the concept of use case. For the consumer domain, six high-level and 18 detailed-level use cases were obtained. For the water utility domain, seven high-level and 20 detailed-level use cases were described. The high-level use cases with higher priority to be implemented in the iWIDGET system were also identified based on the contribution of different target audiences. The list of use cases covers a comprehensive range of possible usages that can be built upon the exploitation of data related to water and energy use in water distribution systems and in households, which may be of further use as a guide for similar studies.

Sign in / Sign up

Export Citation Format

Share Document