A national subsidy program is one of the key elements for translating customer choice into a larger market share for renewable energies. Since solar water heaters (SWHs) are a cost-effective and mature technology, purchase-based subsidy programs have been sponsored by the Bureau of Energy, Ministry of Economic Affairs (BEMOEA) in Taiwan. The market of SWHs is associated with economic factors, p...

Solar water heating system is convincing technology to convert solar energy into thermal energy. According the survey, approximately 42% of refined crude oil used in industries and commercial applications for processes. Fossil fuel main source that depleting continuously. an environment-friendly source, which can fulfill demand. collectors are most popular domestic as well industrial sectors du...

short of incineration or boiling will be effective. Furthermore, these results suggest that temperatures achievable in point-of-use hot water heaters (household units) can deactivate infectious B. procyonis eggs, thus providing an option for maintaining safe drinking water during a possible event of bioterrorism or a “boil water advisory.” However, further efforts are needed to determine the ef...

Introduction: Accessibility to safe drinking water is an important human health issue, so water reuse and water resources management are critical in arid parts of developing  regions. This study aimed to investigate the use of a combined simple designed solar geyser/photocell for drinking water disinfection. Materials and Methods: In this study, a solar geyser with a simple design was combined...

ABSTRACT: In this paper, the thermal characteristics of single and double flow plane solar heaters with radiating working gas were analyzed and compared by numerical analysis for the first time. The laminar mixed convection gas flow in the heaters was numerically simulated by the CFD method using the finite volume technique. The set of governing equations included the conservation of mass, mome...

Urine osmolality was studied in 38 babies nursed in conventional incubators or cots and 18 nursed under an overhead radiant heat shield. Among 50 babies receiving a similar fluid intake in the first 48 hours of life mean urinary osmolality was significantly higher in the radiant heater group. In babies weighing less than 1500 g a trend towards higher urinary osmolalities was recorded in those n...

Five years after a 1983 Washington State law required new water heaters to be preset at 49 degrees C (120 degrees F), 77% of homes (84% of homes with postlaw and 70% of homes with prelaw water heaters) had tap water temperatures of less than 54 degrees C. In 1977, 80% of homes had tap water temperatures greater than 54 degrees C. Mean temperature in 1988 was 50 degrees C compared with 61 degree...

A photovoltaic-thermal (PV-T) hybrid collector evaporator was designed and developed to produce electrical energy extract thermal simultaneously from the panel using refrigerant circulated tubes. The absorbs heat photovoltaic panels during its phase change liquid vapour. PV-T evaporators deliver both electricity outputs. An R-32 refrigerant-based solar-assisted pump water heating system with a ...