<span>Maximum power point tracking (MPPT)</span><span> is considered one of the important factors in minimizing installation costs and improving efficiency any photovoltaic water pumping system. The MPPT controller specifically used to extract maximum available from </span><span>photovoltaic (PV) array. can be achieved by using a specific algorithm. This work aims ...

In this paper, a data-mining approach for modeling pumps in the wastewater preliminary treatment process is discussed. Datamining algorithms are utilized to develop pump performance models based on industrial data collected at a municipal wastewater processing plant. The performance of wastewater pumps is described by two parameters, pump energy consumption and water flow rate after the pumps. ...

This work presents a model for the inclusion of chemical water stability in optimizing the operation of water distribution systems. When desalinated water is mixed with surface water and/or groundwater, the blend can become chemically unstable. Such a state can cause the phenomena of “red water,” an increase in corrosion rates, and a reduction in disinfection efficiency. In this study, a method...

This work presents four-year monitoring results of two new multi-family houses in Innsbruck aiming to be net-zero energy buildings (NZEB). The project combines high-performance designed Passive House standard, highly-efficient HVAC systems i.e., low-temperature distribution and emission, a double-stage ground-water source heat pump including desuperheater mechanical ventilation with recovery, m...

Solar heating and cooling (SHC) systems are currently attracting attention, especially in times of increasing energy prices supply crises. In lower prices, absorption SHC were not competitive to compression supported by photovoltaic (PV) modules due the high investment costs total efficiency. This paper aims discuss current changes terms feasibility application a small system mild Mediterranean...

The k-ω Shear Stress Transport (SST) turbulence model is adopted to study the hydrodynamic performance of the water-jet axial pump which is applied in Unmanned Surface Vehicle (USV). The numerical simulation of the whole passage of the water-jet pump is carried out for four different tip clearance with δ = 0.3 mm, δ = 0.8 mm, δ = 1 mm and δ = 1.4 mm. And the results, in term of external charact...

Solar thermal water heating systems reduce household energy bills by using the free solar radiation provided by the sun to heat water for residential needs. In order to eliminate the need for electricity to run a pump to drive the fluid circulation in these systems, fluid buoyancy effects can be employed to move the fluid from lower elevations to higher elevations. There are several operational...

the running status of it can be more comprehensive judged through acquisition and analysis of vibration signal for water pump rotary machinery. Therefore, the collection of vibration signal is the key to monitor equipment running status and diagnose faults. This paper introduces water pump fault diagnosis system based on DSP and wavelet transform, and the system can realize water pump vibration...

This study aimed to analyze the performance of a solar-assisted dual-tank heat pump system under climatic conditions in Turkey. and its components were modeled simulated using transient simulation software. The was designed not only supply domestic hot water for restaurant, but also it winter cool summer. works on principle that water-to-water operating between dual tanks transfers from cold ta...