Water-tank models of meso-scale atmospheric processes often show good qualitative agreement of bulk quantities and flow characteristics and good quantitative agreement of turbulence quantities with field observations. However, it was demonstrated in the first part of this two-part communication that the similarity of velocities of thermally driven upslope flows in atmosphere and water tank is v...

Solar water disinfection (SODIS) is an effective and inexpensive microbiological treatment technique, applicable to communities lacking access safely managed drinking services, however, the lower volume of treated per day (< 2.5 L batch) a limitation for conventional SODIS process. To overcome this limitation, continuous-flow solar system was developed tested inactivation Acanthamoeba castellan...

This paper proposes an energy management strategy for a residential electrothermal microgrid, based on renewable energy sources. While grid connected, it makes use of a hybrid electrothermal storage system, formed by a battery and a hot water tank along with an electrical water heater as a controllable load, which make possible the energy management within the microgrid. The microgrid emulates ...

Abstract—Eutrophication of surface water is one of the most widespread environmental problems at present. Large number of pilgrims and tourists visit sacred artificial tank known as “Brahma Sarover” located at Kurukshetra, India to take holy dip and perform religious ceremonies. The sources of pollutants include impurities in feed water, mass bathing, religious offerings and windblown particula...

This study quantifies the potential of a 4.0 kW air source heat pump (ASHP) unit retrofitted to 12.0 kW, 1000 L electric boiler coupled storage tank. A data acquisition system was built monitor performance and ASHP water heater. The annual electrical energy saving load factor reduction from because retrofit 34,805.94 kWh 0.124. net present value payback period 1.60 years. Wilcoxon rank sum test...

A significant portion of the energy consumed by home appliances that uses hot water is used for heating cold supply water. Such home appliances generally use supply water at a temperature lower than the ambient temperature. Thus, the water is normally heated from below the ambient temperature to its designed maximum temperature by the appliance, often using natural gas or an electrical heater. ...

We explored repurposing discarded materials to construct simple, field expedient, solar heating devices capable of heating drinking water to water pasteurization temperatures. Results of different test configurations quickly constructed from junk material indicate important design parameters to include maximizing exposed container surface area and using transparent glass and dark absorbent mate...