نتایج جستجو برای: solar domestic hot water system
تعداد نتایج: 2899731 فیلتر نتایج به سال:
System cost reductions and development of standardised plug-and-function systems are some of the most important goals for solar heating technology development. Retrofitting hot water boilers in single-family houses when installing solar collectors has the potential to significantly reduce both material and installation costs. In this study, the TRNSYS simulation models of the retrofitting solar...
The energy consumption associated with domestic hot water supply services correspond to a significant portion of the total energy consumption of the urban water cycle. The objective of this study is to analyse the performance of domestic water heaters in the three largest cities of Australia (i.e. Sydney, Melbourne and Brisbane). The performance of systems was investigated undertaking a multi-p...
We investigated Legionella and Pseudomonas contamination of hot water in a cross-sectional multicentric survey in Italy. Chemical parameters (hardness, free chlorine, and trace elements) were determined. Legionella spp. were detected in 33 (22.6%) and Pseudomonas spp. in 56 (38.4%) of 146 samples. Some factors associated with Legionella contamination were heater type, tank distance and capacity...
Recently builders have shown considerable interest in combining the features of active and passive solar space heating systems into a hybrid system employing active collection and some form of passive discharge/storage device. Ye examined the performance and economics of a hybrid2 air-based, residential system using 18.5 m of roof-mounted air collectors and a hollow-core slab that discharges di...
According to the authors of this paper, mathematical point view allows us see what sometimes cannot be seen from designer’s view. The aim study was estimate influence most important parameters (volume heat storage tanks, daily consumption domestic hot water, optical efficiency, loss coefficient, and total area a solar collector) on thermal power output water (SDHW) system in European climatic c...
Hospitals consume large quantities of energy to produce hot water and offset the distribution recirculation thermal losses. This paper analyses a solar system combined with gas boilers for domestic production in medium-size hospital. The contribution total demand (27%) is below design expectations (75%), resulting significant consumption. audit conducted first part highlights vast loss through ...
A solar trigeneration system, based on photovoltaic-thermal (PV/T) collectors, photovoltaic (PV) modules and a heat pump unit for heating and cooling, is modelled to forecast the thermal and electric yields of the system. The aim of the trigeneration system is to provide enough electricity, domestic hot water (DHW), heating and cooling power to meet the typical demand of an urban single family ...
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