A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Energy indicators and savings in water supply
Indicators that are easy to apply can assess the efficiency of energy usage.
This article describes two indicators that evaluate the energy consumption of a water supply system. The structure indicator describes how the spatial distribution of users and water sources influences energy consumption. It is defined as the minimal energy that is necessary to lift a cubic metre of water to users and to give it a pressure of 6 bar (88 psi), a typical water pressure at the tap. In turn, minimal energy can be calculated as the difference between the potential energy of the delivered water (for some unit of time) and the potential energy of the same quantity of water at the source. The quality indicator is defined as the ratio of the effective energy used (during the same unit of time) and minimal energy. It shows the efficiency of the entire water supply system, which is determined by factors such as the efficiency of pumps, locations of reservoirs, and water loss in the network. The results of calculations are used to establish a relationship between the value of the quality indicator and the energy‐reduction possibilities; this relationship permits a water supplier to evaluate how economically a water supply system uses its energy.
Energy indicators and savings in water supply
Indicators that are easy to apply can assess the efficiency of energy usage.
This article describes two indicators that evaluate the energy consumption of a water supply system. The structure indicator describes how the spatial distribution of users and water sources influences energy consumption. It is defined as the minimal energy that is necessary to lift a cubic metre of water to users and to give it a pressure of 6 bar (88 psi), a typical water pressure at the tap. In turn, minimal energy can be calculated as the difference between the potential energy of the delivered water (for some unit of time) and the potential energy of the same quantity of water at the source. The quality indicator is defined as the ratio of the effective energy used (during the same unit of time) and minimal energy. It shows the efficiency of the entire water supply system, which is determined by factors such as the efficiency of pumps, locations of reservoirs, and water loss in the network. The results of calculations are used to establish a relationship between the value of the quality indicator and the energy‐reduction possibilities; this relationship permits a water supplier to evaluate how economically a water supply system uses its energy.
Energy indicators and savings in water supply
Pelli, T. (author) / Hitz, H.U. (author)
Journal ‐ American Water Works Association ; 92 ; 55-62
2000-06-01
8 pages
Article (Journal)
Electronic Resource
English
Pressure , Water Supply , Energy , Pumps , Reservoirs
Potential Water and Energy Savings for Reducing Urban Water Supply Loss in China
| American Chemical Society | 2022
Energy and water savings strategies
British Library Online Contents | 2016
Water Supply and Energy in Residential Buildings: Potential Savings and Financial Profitability
| DOAJ | 2019
WATER HYDRAULIC ENERGY SAVINGS VEHICLE
| British Library Conference Proceedings | 2003