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What is a Solar Water Heater ?. It is a device that converts the light emitted by the sun into heat energy that is transferred to the required medium. Works on the thermo-syphon principle ( No external energy source required) Utilizes the black body absorption principle
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What is a Solar Water Heater ? • It is a device that converts the light emitted by the sun into heat energy that is transferred to the required medium. • Works on the thermo-syphon principle ( No external energy source required) • Utilizes the black body absorption principle • Heat energy generated can be stored or utilized depending on application.
APPLICATIONS • WATER HEATING • BOILER FEED • SWIMMING POOL HEATING • DISTILLING • CHEMICAL PROCESSING • ROOM HEATING • CROP DRYING
PRODUCT TYPES • Regular (Thermo-syphon) System • Pressurized System • Heat Exchanger System • Cascade System • Auto Circulation System • Forced Circulation System
Save while utilizing the System • Your monthly expenditure on maintenance is nil. • The total cost of energy utilized by you will reduce. • No man power cost on maintenance of the products. • Erratic supply of electricity, fuel, coal and firewood will not effect the supply of hot water.
SWH vs Electricity • Savings/ Pay back period • Electricity required to heat 1000 Ltrs of water = 1000x1x1x40 • 861 x 0.9 • = 51 units per a day • Savings per annum = 51x5.5x300 • = Rs. 84,150/- per annum • Cost of 1000 LPD SWH System = Rs. 1,60,000/- • Pay back period = 2 Years • NOTE: Cost of electricity @ Rs: 5.50 per unit • Solar utility @ 300 days per year
Payback Period • Economics of solar water heating system • System capacity : 10 000 lts • Project cost : Rs 16,00,000.00 • Electricity Price: Rs. 5.50 / kWh • Savings in electricity: Rs 3,036.00/ day • Per year savings: Rs 9,10,000/- • Payback Period: 2 year (approx.)
Indirect Advantages • Costs incurred can be taken into P&L account (lease ) / 80% depreciation in the first year (direct) • Helps in reduction on peak load demand • Helps in reduction of greenhouse effects by contributing towards a non polluting environment • Provides a healthy environment to all living on this planet • No threat of change in technology in the near future • No skilled man power required for day to day maintenance and operation
Benefits of Solar Heating Systems over conventional heating method • IN NATIONAL INTEREST • Conserves precious foreign Exchange • Productive use of conventional energy • Helps in the national mission of energy conservation • Reduced green house effect • Helps the Country to avail carbon exchange benefits • Saves foreign exchange • Energy saved could be utilized for other productive purpose
Benefits of Solar Heating Systems over conventional heating systems • ENVIRONMENTAL • Clean energy- No Pollution • No Carbon dioxide emission -No ozone depletion • Hot water-24 hours a day using solar energy • Saves precious electrical/fossil energy • Trouble of storing and maintaining coal, fuel, and firewood is absent
Benefits of Solar Heating Systems over conventional heating systems • FINANCIAL • Low operating cost • Negligible Maintenance cost • No electricity - No monthly energy bills • No breakdown - No repair cost • Low investment in the long term
Area Required for Installation • Non- Domestic Installations • 1000 LPD - 12’ X 32’ • 2000 LPD – 20’ X 32’ • 3000 LPD – 30’ X 32’ • 4000 LPD – DTC / FTC ( approx. 1200sq.ft collector area) • 5000 LPD – DTC / FTC ( approx. 1400sq.ft collector area)
