The paper deals with heat networks, which are parts of district heating systems. There was created a complex computational program as a tool for calculation of pressure, flow and temperature ratios in particular parts of the defined heat network. The article is mainly focused on solution of hydraulic and heat relations in real locality.

Present day instrumentation networks already provide immense quantities of data, very little of which provides any insights into the basic physical phenomena that are occurring in the measured medium. In order to fully exploit the information contained in the data, dimensionally aware GP has been developed. The present paper presents two application studies of dimensionally aware GP on difficul...

Through the hydraulic balancing of heating systems, significant energy savings in residential buildings can be achieved. These savings refer to (primary) heating energy, as well as to (secondary) electric energy for the supporting building services. This paper addresses the use of KNXtechnology and networks (Smart Buildings) in multi-storey residential buildings to ensure a dynamic adaption of ...

Hydroelectric power plants are known for their ability to cover variations of the consumption in electrical power networks. In order to follow this changing demand, hydraulic machines are subject to off-design operation. In that case, the swirling flow leaving the runner of a Francis turbine may act under given conditions as an excitation source for the whole hydraulic system. In high load oper...

The hydraulic fracturing propagation is strongly influenced by the existence of natural fractures. This is a very important factor in hydraulic fracturing operations in unconventional reservoirs. Various studies have been done to consider the effect of different parameters such as stress anisotropy, toughness, angle of approach and fluid properties on interaction mechanisms including crossing, ...

Computing optimal motions for any robot requires a good model, and a method to compute the optimal motions using that model. As research is conducted into automating operations in construction, excavation etc. there arises a need to compute optimal motions for the hydraulic machines used in these areas. Hydraulic machines disallow a simple extension of work done previously on optimal motion pla...

We investigated the role of increasingly well-constrained geologic structures in the subsurface (i.e., subsurface architecture) in predicting streambed flux and hyporheic residence time distribution (RTD) for a headwater stream. Five subsurface realizations with increasingly resolved lithological boundaries were simulated in which model geometries were based on increasing information about flow...

measuring sensitivity of hydraulic structures is considered as an approach for evaluation of water projects performance, due to lower distribution efficiency in irrigation and drainage project schemes. sensitivity analysis approach for irrigation structures is one of flow analysis methods which are developed in recent years in order to measure the behavior of flow in hydraulic structures in an ...

Hydraulic State Estimation (HSE) is a suitable tool to gain real-time understanding of water supply systems. This technique enables estimate the most likely hydraulic behavior in network, as well its associated uncertainty, from available measurements. HSE has been successfully applied trunk mains, but additional work required implement it on Water Distribution Networks (WDNs). The reason for t...