Solar water purification by using thermal method abstract

ABSTRACT This senior project discusses the design and construction of a solar powered water purification system. Active methods include the use of solar collector or waste heat to heat the.

In addition some solar thermal water disinfection processes are batch-based while others through-flow solar thermal.

Solar water purification by using thermal method abstract. DIAGRAM OF SOLAR WATER PURIFICATION BY USING THERMAL METHOD Solar energy Collector is a heat exchanger capable of using solar radiation to increase the internal energy and temperature of a working fluid. In its simplest form it. The solar water purifier is an advancement of the current water purification system.

It has been introduced to meet up demands of pure drinking water using renewable energy. It takes solar power. A density driven solar thermal pasteurization system has been installed for the purpose of purification of water.

The main components of this system are evacuated tube collectors with heat pipe. In this paper solar energy is being collected by using a solar panel. The collected solar energy is being stored in the battery.

In case of rural and remote areas and the areas affected but natural disasters where electricity is a big problem 12 -14 this stored energy can be used for the purification of water. The charge controller used here controls the required a mount of. Water will enter the system where it will flow through a sediment filter and then be processed by a UV purifier.

By using both standard sediment filtration and ultraviolet radiation purification. The solar thermal systems convert the radiant energy of the sun into heat and then use that heat energy as desired. A solar still is a device that produces clean drinkable water from dirty water using the energy from the sun.

Solar still uses the heat of the sun directly in a simple piece of equipment to purify water. The equipment commonly called a solar still consists primarily of a shallow basin. Passive methods include the use of dye or charcoal to increase the solar absorbtivity of water applying good insulation lowering the water depth in the basin to lower its thermal capacity ensuring vapor tightness using black gravel and rubber using floating perforated black plate and using reflective side walls.

Active methods include the use of solar collector or waste heat to heat the. DESIGN AND FABRICATION OF SOLAR WATER DESALINATION BY USING PARABOLIC METHOD Patel Shail1 Patel Nilay2. Abstract -This research aims towards the characteristics of water obtained on desalination of sea water using a parabolic trough under different parameters like ambient temperature output TDS wind temperature time of day shape of parabolic trough.

Solar thermal water disinfection uses heat from the sun to heat water to 70100 C for a short period of time. A number of approaches exist. Solar heat collectors can have lenses in front of them or use reflectors.

They may also use varying levels of insulation or glazing. In addition some solar thermal water disinfection processes are batch-based while others through-flow solar thermal. ABSTRACT This senior project discusses the design and construction of a solar powered water purification system.

An ultraviolet water treatment system was designed and built to demonstrate the capability of off the grid water treatment. The system is specifically. The term SODIS stands for Solar water disinfection is a low technology the simple process of cleansing water using solar energy and also solar radiation.

This was first introduced in the year 1980 by Aftim Acra et al from the American University of Beirut. The method includes polluted water being filled in clear PET or glass bottles which are then visible to the sun for around 6 hours. The World Health Organization lists solar disinfection in clear bottles by the combined action of UV radiation as well as thermal disinfection pasteurization in opaque vessels with sunlight from solar cookers or reflectors and combination systems employing chemical coagulation-flocculation as some of the most promising and accessible technologies for household water treatment.

Chemically exfoliated ce MoS 2 nanosheets were mechanically interlocked with bacterial nanocellulose BNC enabling an effective solar thermal water purification. The phase transition from 2H to 1T during exfoliation enhanced the light absorption of ce-MoS 2 increasing the solar evaporation efficiency from 59 to 76 under 076 kWm 2 light intensity. Passive solar vapor generation represents a promising and environmentally benign method of water purificationdesalination.

However conventional solar steam generation techniques usually rely on costly and cumbersome optical concentration systems and have relatively low efficiency due to bulk heating of the entire liquid volume. Here an efficient strategy using extremely low-cost materials ie. A simple and reliable method that could be used in developing countries to pasteurize milk and water with solar energy is described.

A cardboard reflector directs sunshine onto a black jar heating water to pasteurizing temperatures in several hours.