The role of water pricing for managing water resources is widely recognized in many areas of the world because of the increasing scarcity of water resources, a high competition between water uses and environmental degradation. Based on the analysis of cost of water, this paper explores which types of cost should be reflected in the water pricing enhancing the sustainability of water resources. ...

performance optimization of a single-effect lithium bromide water absorption refrigerationsystem is the subject of this paper. first, the thermodynamic model of the system wasderived based on thefirst and second law analysis of an absorption refrigeration cycle with libr-water as the working fluid pair.then, the effects of different design parameters such as the generator inlet hot water temper...

The article provides an analytical review of the achieved crop yields under irrigation in experimental and production conditions. For today, best experience use irrigated land indicates that, subject to all agrotechnical requirements, yield early grain crops reaches 8-10 t / ha, corn - 10-14 oilseeds 4-6 vegetable over 60 which is about 90% their productivity experiments scientific institutions...