SOLAR THARMAL SCHEMES
SOLAR THARMAL PROGRAM
1.Solar Water Heating Systems
2.Solar Cooking Systems
3.Solar Steam Cooking System
4.Parabolic Concentrator Solar Water Heating Systems Introduction Solar water heater consists of a collector to collect solar energy and an insulated storage tank to store water. The solar energy incident on the absorber panel coated with selected coating transfers the heat to the riser pipes underneath the absorber panel. The water passing through the risers get heated up and are delivered to the storage tank.
The recirculation of the same water through absorber panel in the collector raises the temperature upto 68ºc + 5 ºc on a good sunny day. The total system with solar collector, storage tank and pipelines is called solar hot water system. Based on the collector system, solar water heaters can be of two types: ·
Flat Plate Collectors (FPC) based Solar water heater where radiation is absorbed by Flat plate collectors which consists of an insulated outer metallic box covered on the top with glass sheet. Inside there is blackened metallic absorber with built in channels or riser tubes to carry the water. The absorber absorbs the solar radiation and transfers the heat to the flowing water. ·
Evacuated Tube Collectors (ETC) based Solar Water Heaters is made of double layer borosilicate glass tubes evacuated for providing insulation. The outer wall of the inner tube is coated with selective absorbing material. This helps absorption of solar radiation and transfers the heat to the water which flows through the inner tube. Solar water heater is being used for heating water in homes, factories and other commercial and institutional establishments. It has life of 15-20 years. By use of solar water heater of 100 litres capacity results in annual savings of app. 1250 units of electricity.
At present there is no any subsidy is admissible on Solar Water Heating Systems. UPCL provides rebate of Rs. 100/- per month for 100 LPD Solar Water Heating System on electricity bills to consumers. Below mentioned bar graph shows the yearwise installation of solar water heater and cumulative installation of solar water heater till date from FY 2010-11 onwards.
Detail of Year Wise Solar Water Heating Systems Installation in Uttarakhand
S.No. Year Capacity Installed in LPD App. Area in Sq. Mtr. 1 1986-87 30200 604 2 1988-89 9600 192 3 1989-90 10900 218 4 1990-91 1700 34 5 1991-92 6700 134 6 1992-93 9500 190 7 1993-94 1700 34 8 1994-95 191400 3828 9 1995-96 1000 20 10 1996-97 1000 20 11 1997-98 2300 46 12 1998-99 6800 136 13 1999-2000 6900 138 14 2000-2001 8000 160 15 2003-04 13700 274 16 2004-05 12500 250 17 2005-06 42000 780 18 2006-07 68100 1222 19 2007-08 41400 771 20 2008-09 151200 3024 21 2009-10 193600 3372 22 2010-11 167425 2999 23 2011-12 316575 5224 24 2012-13 520300 8152 25 2013-14 520000 8211 26 2014-15 462000 7090 27 2015-16 503750 7575 3300250 54698
The Jawaharlal Nehru National Solar Mission (JNNSM)-one of the eight missions under National Action Plan on Climate Change was launched by the Prime Minister on 11th January 2010, which is a measure initiative of government of India and state govt. to promote ecological sustainable growth while addressing India’s energy security challenge. To promote off grid applications of Solar energy (both SPV & Solar Thermal) for meeting the target set in JNNSM, UREDA has installed a various capacity Solar Water Heating System under JNNSM.
The categorize benchmark has been finalized by MNRE for 2013-14 is as below. SI NO Type of System Category Previous year benchmark cost Per sqm for 2012-13 (Rs/sqm ) New benchmark cost Per sqm for 2013-14 (Rs/sqm )
1. Evacuated Tube Collectors (ETC) Domestic 10000 8500 Commercial 10000 8000
2. Flat Plate Collectors (FPT) Domestic 11000 11000 Commercial 10000 10000
List of Schools for Installation of Solar Water Heating Systems (2019-20)
Group-A Sl.No. District Name of School Proposed Capacity (In LPD)
1 Haridwar K.G.B.V., Harjoli, Narsan 500 Boys Hostel, Laldhang, Bahadarabad 1000 Boys Hostel, Alipur, Bahadarabad 1000 K.G.B.V., Ranimajra, Bahadarabad 500 Girls Hostel, Bandiwala, Bhagwanpur 1000 Girls Hostel, Gobardhanpur, Khanpur 1000
2 Udham Singh Nagar Girls Hostel, Bajpur 1500 K.G.B.V., Sitarganj 1500
3 Dehradun Girls Hostel, Kalsi 2000 Girls Hostel, Tyuni 2000 Special Residential Hostel, Rajpur Road 2000 Special Residential Hostel, Nabha House, Rishikesh 1000
4 Nainital K.G.B.V., Khansyu, Okhalkanda 3000 (2X1500) Group-B Sl.No. District Name of School Proposed Capacity (In LPD)
1 Champawat K.G.B.V., Tanakpur 1000
2 Almora K.G.B.V., Chagethi, Dhouladevi 2000 K.G.B.V., Jaiti, Lamgada 2000 Rajeev Gandhi Navodaya Vidyalaya, Chounaliya, Bhikiyasen 4000 (2X2000)
3 Tehri Girls Hostel, Aampata, Narendranagar 2300 (1X2000) (1X300) Girls Hostel, Routu Ki Veli, Jonpur 2300 (1X2000) (1X300) Girls Hostel, Koshal, Tholdhar 2300 (1X2000) (1X300) Girls Hostel, Akhodi, Bhilangana 2300 (1X2000) (1X300) Girls Hostel, Sujadgaon, Pratapnagar 2300 (1X2000) (1X300) Group-C Sl.No. District Name of School Proposed Capacity (In LPD)
1 Chamoli K.G.B.V. 2000 2 Pithoragarh K.G.B.V. Dasaithal 2000 Rajeev Gandhi Navodaya Vidyalaya, Gangolihat 2000 3 Uttarkashi - - Group-D Sl.No. District Name of School Proposed Capacity (In LPD) 1 Bageshwar - - 2 Pauri K.G.B.V. 6000 (2X3000)
3 Rudraprayag - -
Solar Cooking Systems
1- Dish Type Solar Cooker The main objective of the programme is to provide nutritious food to users and to aware the future generation about the Renewable Energy Systems. The scheme is centrally sponsored. MNRE is providing 60% subsidy in Uttarakhand. The installation of Dish Type Solar Cookers in the Govt. Primary Schools for cooking of "Mid-day Meal" is being done by UREDA from past years.
UREDA had installed/distributed around 6419 Solar Cooker up to the year 2015-16 under Mid-day Meal programme in Govt. schools and to various individual users. Detail of Subsidy of Dish Type Solar Cooker Sl. No. Type of Cooker Cost of Cooker (In Rs.) Central Subsidy 60% State Subsidy 25% Beneficiary Share (In Rs.)
1 Dish Type Solar Cooker 6]573-00 3]944-00 1]643-00 986-00 District wise installed no. of Dish Solar Cooker under Mid day Meal & Market Mode programme up to 2015-16 Sl. No. District Total 1 Dehradun 435 2 Haridwar 176 3 Tehri 442 4 Uttarkashi 404 5 Pauri 761 6 Rudrapryag 517 7 Champawat 321 8 Almora 1147 9 Bageshwar 221 10 U.S. Nagar 115 11 Pithuragarh 386 12 Nanital 750 13 Chamoli 744 Grand Total 6419
2- Box Type Solar Cooker It is well known fact that a black coloured surface absorbs more heat than a white surface. So, the inner walls and bottom of metallic box to be used for making solar cooker are painted black to increase absorption of heat. This box is covered by a thick transparent sheet of glass. When the box with glass cover is placed in the sunlight, the glass cover allows the infra red rays present in sunlight to pass into the box. Most of these infra red rays are then absorbed by black surface of the box and the box becomes hot. But, after sometime when the black surface becomes hot it starts radiating out heat in the form of infra red rays. But, the glass sheet cover placed over the box does not allow the heat radiated by the black surface to go out from the box. In this way, the glass cover enables the cooker to entrap the heat inside it. Usually, a plane mirror reflector is also attached on the top of the box. The plane mirror reflector increases the efficiency of solar cooker by reflecting more and more sunlight inside the box.
It should be noted that the temperature inside box type solar cooker can go from 1000C to 1400C within 2 to 3 hours when placed in sunlight. So, this type of solar cooker is used to cook only those food materials which require gentle heating. Detail of Subsidy of Box Type Solar Cooker Sl. No. Type of Cooker Cost of Cooker (In Rs.) Central Subsidy 60% State Subsidy 25% Beneficiary Share (In Rs.) 1 Box Type Solar Cooker 3]240-00 1800-00 810-00 630-00
Detail of Dish Type Solar Cooker(11.7 KB) Dated: 11.11.2019 Solar Steam Cooking System Concentrating Solar Technologies for Process heat, Community cooking & Cooling Applications Introduction: Ministry of New and Renewable Energy (MNRE), Govt. of India is promoting Concentrating Solar Technology based systems for process heat, community cooking and space cooling applications in various sectors. For cooking of food in Hotels, Ashrams, Educational Institutions and steam generation for laundry application, space cooling, foods processing in industries, Concentrating Solar Technologies are in implementation for last many years. Few other technologies e.g. dual axis tracked paraboloid dishes, linear Fresnel reflectors, Non-imaging concentrators have also been developed recently and are in demonstration stage. For promotion of Concentrating solar systems, 30% Central financial support for commercial organizations is available under off-grid scheme of JNSSM. Higher support of 60% is available in special category states for non commercial organizations. The systems are being installed through State Nodal Agencies /accredited private channel partners as per technical specifications laid down by MNRE. 15% support under UNDP programme is also admissible. Concentrating Solar technology (CST): ·
CST is a device which can concentrate solar radiation using mirrors to produce temperatures in the range of 100 to 450 ̊ C or more. ·
These devices need tracking to focus Sun rays on to a receiver all the time.
They tap only direct normal radiation and not the diffused one. ·
These are very useful in medium and high temperature required for various applications . Various CST technologies:
1) For medium thermal temperature applications:
a) Fixed focus Elliptical Solar Dish (Scheffler) up to 120 ̊ C.
b)Non-Imaging concentrator up to 120 ̊ C .
2) For medium and high thermal temperature applications:
a) Parabolic trough concentrator(PTC) up to 250̊ C
b) Linear Fresnel reflector concentrator up to250̊ C
c) Paraboloid Dish up to350̊ C .
d) Fresnel reflector based Dish up to 350̊ C.
The details of CST Systems installed/being installed in Uttarakhand
S.No. Name of Site/Beneficiary Capacity (sqm.) No. of Systems Year
1 Shantikunj, Haridwar for cooking of food to 1000 persons 160 1 2009-10
2 Gau Tirth Ashram, Koteshwarpuram, Tehri for distillation of cow urine for medicinal use 16 1 2011-12
3 Jindal Refinery, Kashipur for 30,000 ltr. Of water heating to feed in boiler 480 1 2011-12
4 Indian Institute of Technology (IIT), Roorkee for cooking food in hostels 976 9 2012-13
5 Unique Hotel and Restaurant Pvt. Ltd., 97 Rajpur Road, Dehradun for water heating 80 1 2013-14
6 Swami Ramtirth Mission, Rajpur Road, Dehradun for cooking 16 1 2013-14
7 Rajiv Gandhi Navodaya Vidyalaya, Shikarpur, Haridwar for cooking of food for 300 children 64 1 2014-15
8 Rajiv Gandhi Navodaya Vidyalaya, Chaunoliya, Almora for cooking of food for 300 children 64 1 2014-15
9 Eco Gole Girls International School, Dehradoon 256 1 2015-16
10 M/s TTK Prestige Ltd., Roorkee. Non imaging concentrator 195 1 2015-16 Total 2308.8 18
Parabolic Concentrator cParabolic Concentrator for condensation of Cow Urine Ayurveda has Trasure of recipes of Medicines one of the key potion is "Gomutra" (Deshi Cow's Urine). The "ark" of Gomutra is pure medicine of immense health value. Adding to the purity, we have solarized the process! to take it further towards ultimate purity. "Gou Tirthashram" Uttarakhand Gau Samverdhan Samiti Koteshwarpuram, Tehri Garhwal has sheltered old disabled cows. The cow dung and cow urine is being used for economic development of organization. Organization has about 550 cow animals at its different centers. The organization preparing various medicines like Phenyl, Dettol and Incense sticks etc. with cow urine. The base of these medicines is concentrate of cow urine. The cow urine is boiled and then condensed to get Concentrate (Ark). The conventional system for condensation of urine is a slow process and costly affair in fuel consumption. The organization has installed 16 Sq.M. Solar Concentrator for condensation of cow urine. Components of the system and Cost ·
16 Sq.M parabolic concentrator with accessories. ·
Stainless Steel receiver. ·
Stainless Steel header tank with accessories. ·
Cost of system is Rs. 4.25 Lakhs Savings in terms of Electricity units and in the terms of Money Gou Tirthashram" Uttarakhand Gau Samverdhan Samiti Koteshwarpuram, Tehri Garhwal has saved a total 7771 electrical units and Rs 33,030.00 after its installation in 1 year. Financial incentives by MNRE GoI Ministry of New and Renewable Energy Sources has provided 60% subsidy i.e. Rs 1,72,400.00 after installation of this system.