EXPERIMENTAL INVESTIGATION OF SOLAR DISTILLATION SYSTEM AND DOMESTIC HOT WATER IN COGENERATION PROCESS

Abstract

Flat Plate Solar Water Distillation (FPSWD) system works on the simple principle of evaporation and condensation process .Unlike other types of distillation system which works either by consuming electrical energy or by burning fossil fuels, it works simply on thermal energy provided by the Sun which is free in nature. The hot waste brackish water is cogenerated. It takes brackish or impure water as an input to the system and fresh water as well as hot brackish water as an output. The simple design of the system makes it suitable for disaster situations mainly flood, where the water is plenty but unsafe to drink. This system which consists of 10 panels i.e. area of 30 m2 has been evaluated and observations were recorded on the basis of field data collected at the Out –Door Test Bed of (period of 8-10 hours) in the month of May,2015 at National Institute of Solar Energy (Latitude: 28025’N, Longitude:7709’E) ,Haryana (India) by taking reading of daily fresh water production corresponding to variation of temperature ,wind speed, solar intensity and ambient temperature during daytime for every hourly basis during daylight from (9.00a.m. to 5.00 p.m.) The inlet feed water that comes from tank is 360 ppm and out let of fresh water & hot brackish water reached at zero ppm & 650 ppm respectively. The fresh water has been achieved 5.2 litres/day m2 at the titled global radiation of 6.2kWh/m2. The average temperature of hot water (brackish water) is 47 0C at the ambient temperature of 240C. The fresh water output is 4.68 litres/day m2 and collected hot water (brackish water) is reached approximately 480 litres/day at 480C, which can be used for domestic proposes.