PROVISION OF SOLAR BASED SPACE HEATING SYSTEM FOR STATION HQ AT AIR FORCE STATION LEH

Amount

Design, Engineering, Supply, Installation and Testing & Commissioning of solar hot water generation based heating system for the distribution of hot air as per the requirement at the locations provided by Engineer-in-Charge. The system shall consist of the following for 295 Sqm area ( AOC Office, CADMO Office & Bajaj Hall) as per sketch given. The thermal evacuated tubular collectors with compound parabolic concentrator reflector (CPC), mounted on suitable hot dipped galvanised iron based structure to withstand wind thrust of 55m/sec or as per relevant IS provisions as prevalent in Leh and to collect sufficient heat energy during the day time. The structure shall consists of structural (galvanised iron) members, nuts, bolts, washers, etc all as per the recommendations of manufacturer, CPC collectors & mountings and shall contains the following:- (i) Compound Parabolic Collector (CPC) Solar Collectors ( No of evacuated tubes per collector- 18 Nos or as per standard manufacturing) with aperture area 3.0 Sqm or as per standard manufacturing , Maximum working pressure upto 10 Bar & Max working Temp upto 272 degree C to generate min heat of 100000 KCal/Hr. (ii) CPC Solar collector base structure shall be made of hot dipped galvanised materials above 85 microns thickness conforming to relevant IS code. (iii) Temperature gauge, Dial Type ,IP 55,Range:-50°C to +100°C conforming to relevant IS code -01 No (iv) Pressure Gauge, Dial Type, IP 55,Range:0-10kg/cm² conforming to relevant IS code -01 No (v) Temperature Sensor - RTD, Bimetallic every angle Type, IP 55, Range minimum:(-50 to100)°C / as per site requirement conforming to relevant IS code -01 No (vi) Air Vent Valve, 15 mm outer thread conforming to relevant IS code -01 No (vii) Solar Circulation Pump centrifugal type with suitable pump and motor in a common base frame made up of MS channels fixed on PCC foundation and shall be installed inside an enclosure of suitable size made up of MS frame structure including walls, roofs etc as per manufacturer recommendations and of min capacity 0.5 HP, suitable head and discharge as per site requirement and as per design, conforming to relevant IS code -02 Nos

Supply, installation, testing & commissioning of pumping system, Plate Heat Exchanger (PHE) and accessories consisting of following :- (i) Supply and Installation of Primary circulation pump, centrifugal type with suitable pump and motor in a common base frame made up of MS channels fixed on PCC foundation and shall be installed inside an enclosure of suitable size made up of MS frame structure including walls, roofs etc for hot water circulation of minimum discharge 1.5 cubic mtr/hr at 18.0 mtr head and as per recommendation by manufacturer for circulation of water from water storage tank to heat exchanger and back to water storage tank. -02 Nos (i) Supply and Installation of secondary circulation pump, centrifugal type with suitable pump and motor in a common base frame made up of MS channels fixed on PCC foundation and shall be installed inside an enclosure of suitable size made up of MS frame structure including walls, roofs etc for hot water circulation of minimum discharge 4.5 cubic mtr/hr at 22.0 mtr head conforming to relevant IS code and as per recommendation by manufacturer for circulation of working fluid from heat exchanger to FCU’s installed at AOC office, CADMO office and Bajaj Hall to be heated and back to the heat exchanger. -02 Nos (iii) Supply & fixing of Plate Heat Exchanger, heat transfer plates made of Stainless steel 304 grade, pressure plate made of carbon steel/ stainless steel, max design pressure upto 10 bar & max design temperature upto 170 Degree C conforming to relevant IS code/IEC/standard international code complete including PCC foundation as per manufacturer all as specified and as directed by Engineer-in-Charge. -01 No

Supply, Installation, testing & commissioning of Stainless Steel Hot Water Storage Tank of minimum Capacity 2000 Ltr to provide backup of 4-5 hours during no sunshine hours, made of Stainless Steel 304 grade having minimum thickness 3mm duly insulated with thermal wool/ puff slab and claded with aluminium sheet 0.3mm complete fitted with suitable electrical heating system, inlet and outlet water valves suitable connecting pipelines MS medium grade and attachments, glass wool/puff insulation of suitable size and density etc complete including PCC foundation as per manufacturer all as specified and directed. The cost of tank consists the followings:- (i) Supply & fixing Heating coil- Flange type, made of SS 304 grade of capacity as recommended by manufacturer and conforming to relevant IS code/IEC/standard international code (02 nos) and heat pump of suitable capacity (2 Nos – 01 working and 01 standby) for heating during early morning, evening and non sun shine hours as per manufacturer recommendation to augment the heating capacity of system including shed/enclosure made up of MS framed structure for protection of heat pump as per site requirement. (ii) Supply & fixing Temperature Gauge- Dial Type, IP 55,Range:-50°C to +100°C conforming to relevant IS code. (iii) Supply & fixing Pressure Gauge- Dial Type, IP 55,Range:0-10kg/cm² (iv) Supply & fixing Temperature Sensor - RTD, Bimetallic every angle Type, IP 55, Range:(-50 to +100)°C/Higher Ranges conforming to relevant IS. (v) Supply & fixing of fasteners and gaskets for pressure range 4.6 Gr-240/Kg - 01 Lot

Supply , installation , commissioning and testing of Fan coil unit of capacity 2.0 TR constructed out of 20 G Pre - coated GI, with 3 Rows Deep cooling coil 3/8" construction including 12 mm thick pre - filter, DIDW Centrifugal blower with single phase direct driven motor and drain tray made out of sandwich type in 18G GI constructions with 25 mm PUF/ Thermocole insulation and 24 G GI covering complete of nominal capacity alongwith with provision of copper pipe line duly insulated with Keflex insulation of required length ( i.e. from system to FCU) alongwith connected accessories complete all as specified and as directed by Engineer-in-Charge.

Supply & fixing MS pipe 50 mm Dia, medium grade , complete with jointing material, fittings, Elbows, Tees, Reducer, Reducer Tees, MS End caps, MS MTA, MS Flange, MS Coupler etc complete all as specified and as directed by Engineer-in-Charge.

Supply & fixing MS pipe 40 mm Dia, medium grade , complete with jointing material, fittings, Elbows, Tees, Reducer, Reducer Tees, MS End caps, MS MTA, MS Flange, MS Coupler etc complete all as specified and as directed by Engineer-in-Charge.

Supply & fixing MS pipe 20mm/ 25mm Dia as per site requirement, medium grade , complete with jointing material, fittings, Elbows, Tees, Reducer, Reducer Tees, MS End caps, MS MTA, MS Flange, MS Coupler etc complete all as specified and as directed by Engineer-in-Charge.

M & L for Insulation of M S Pipe of dia 50 mm with PUF slab 30 mm thick with and including applying bituminous compound and GI cladding with 26 gauge GI sheet complete of appropriate size complete all as specified and as directed.

M & L for Insulation of M S Pipe of dia 40mm with PUF slab 30 mm thick with and including applying bituminous compound and GI cladding with 26 gauge GI sheet complete of appropriate size complete all as specified and as directed.

M & L for Insulation of M S Pipe of dia 20mm/25mm as per site requirement with PUF slab 30 mm thick with and including applying bituminous compound and GI cladding with 26 gauge GI sheet complete of appropriate size complete all as specified and as directed.

Supply & Fixing of Ball Valve 20/25 mm, Brass Ball valve including Y-Strainer inbuilt type, Screwed End, ISI marked conforming to relevant IS code complete all as specified and directed

Supply & Fixing of Ball Valve 20 mm, Brass Ball valve Screwed End, ISI marked conforming to relevant IS code complete all as specified and directed

Supply, Installation, Testing & Commissioning of Y - Strainer, 50mm ANSI.B 16.5 Flange, ISI marked conforming to relevant IS code complete all as specified and directed

Supply, Installation, Testing & Commissioning of Y - Strainer, 25mm ANSI.B 16.5 Flange, ISI marked conforming to relevant IS code complete all as specified and directed

Supply, Installation, Testing & Commissioning of NRV, 2" ( 50mm) Wafer Swing Type, Flanged, ISI marked conforming to relevant IS code complete all as specified and directed

Supply, Installation, Testing & Commissioning of NRV, 1" ( 25mm) Wafer Swing Type, Flanged, ISI marked conforming to relevant IS code complete all as specified and directed

M&L for point wiring complete with 2.5 Sq mm (nominal area) FRLS, PVC insulated un-sheathed and stranded copper conductor cable ISI marked and including PVC casing capping ISI marked and PVC fittings such as tees, bends, elbow, reducers including PVC junction box including FRLS, PVC insulated unsheathed 1.5 Sqmm copper earth wire, connecting to common earth dolly with and including PVC flush box of suitable size for fixing switches/sockets etc , with and including cover plates of suitable size and making good surface as original by plastering, whitewash/colour and distemper etc complete all as directed for the following :-(Note : The cost of Metal boxes and cover plates will be included in quoted rate.): Make of copper wire :- RR Kabel/Havells/Polycab/ Finolex

M & L for Metal Clad type AC Box including metal clad flush box, 15/16 Amp Modular type socket & 20/25 Amp modular type MCB SP, complete all as specified and as directed by Engineer-in-Charge.

Material and labour for LT distribution panel, made out of 3.15 mm thick MS sheet, powder coated, dust & vermin proof, IP-66 Protection, Outdoor type factory made cubical totally enclosed type with front and rear door opening as per engineering practice provided with locking arrangement for opening of panel with provision of separate chamber in upper part to enclose Copper busbar of cap 200 Amps on epoxy insulators in horizontal position and stepped manner with min 20cm distance between busbars & panel body and 06 Nos separate chambers of adequate size embedded in 40mm thick PCC 1:2:4 type B-1 (using 20mm graded aggregate), on angle iron of size 40x40x6mm with footing 30 cm clear space between bottom of panel and flooring including all accessories prewired with insulated copper wires of suitable size. The panel shall compromise of the following fittings and fixture: INCOMING : (a) MCCB Four pole 100 Amps Icu =35 KA at 415 volts with microprocessor release - 01 No (I/G) It should be with adjustable over load setting Ir = (0.8 to 1.0) x In,Ics = 100 % Icu and with adjustable thermal setting. Class II front face with positive break indication with double break contacts, Standard extended rotary handle, Spreaders, Phase barrier etc-01 Nos OUTGOING (i) MCB TPN 10 KA C Curve type 40/32 Amps - 03 Nos (ii) MCB SPN 32 Amp 10 KA - 06 Nos. (iv) DOL Starter of Cap 2.0 HP -06 Nos (v) Star-Delta Starter of Cap 12.5 HP -02 Nos (vi) Indicating lamps Led type (RYB). (vii) Digital Voltmeters 96 X 96 MM -01 No (viii) Digital Ammeters 96 X 96 MM with suitable CT ratios -01 Nos The control panel shall also consists of control & monitoring system for safe running of the entire system on auto mode, including automatic starter with automatic ON/OFF for solar heating as per the temperature setting.

Supply, laying, jointing and testing, fixing to wall using clamps/pole/floor or in air or passing through pipes /ducts / road/path/drain, laid in trenches, 1100 volts grade heavy duty electric cable XLPE insulated, screened ,PVC bedded, galvanised steel wire or wire armoured with electric power cable 1100 volts grade with stranded aluminium conductor of size 3.5 core 50 sqmm ISI marked ( IS - 7098 Part-1) and its latest amendments complete all as specified and as directed by Engineer-in-Charge. Note ;- The cable is catered for supply to LT distribution Panel ( Item No 19 from existing LT Supply to takeover point of MES to LT Panel).

Excavation in trenches in hard/dense soil/ any type of soil not exceeding 1.5 meter wide and not exceeding 1.5M in depth for laying of cables and getting out of excavated material complete all as specified and directed by Engineer-in-Charge.

Material and labour for good quality dry river sand cushioning to underground electric cable on layer of 8 cm thick before laying the cable and second layer of 15 cm thick after laying the cable all as specified in clause 19.75 of MES Schedule part-I (2009) Note : Sand shall be fined river sand as specified and punned thickness shall be measured Complete all as specified as directed by Engineer-in-Charge.

M&L for un-reinforced precast concrete cable cover, class LV, type 1, flat of size 250 x 150 x 40 mm for cable protection complete all as specified and as directed by Engineer-in-Charge.

Returning, filling in, including spreading, leveling, watering and well ramming in layers not exceeding 25cm thick each, excavated soil in trenches after the cables have been laid and tested complete all as specified and directed by Engineer-in-Charge.

Removing excavated soil to a distance not exceeding 50 meter and depositing where directed at a level not exceeding 1.50 meter above the starting point complete all as specified and directed by Engineer-in-Charge.

Material & labour for cutting existing road/Hard Rock/ PCC hard Standing/ pavement/ drain for taking out / laying of underground GI pipe light grade 80mm dia for laying of cable and including necessary earth work and making good to match with the existing surface with PCC work in type B2 (1:2:4) cement mortar with 40mm graded aggregate complete all as specified and as directed by Engineer-in-charge.

Supply, Installation, Testing & Commissioning of indoor type PLC (Programmable Logic Control) based SCADA Control System, cloud based used to control record and monitor all the functions including the safety aspects and store all data for monitoring and record as per the recommendation of OEM, complete all as specified and directed.

Notes : (i) Anything missed out above but required for smooth functioning of solar space heating system is deemed to be included in the quoted rates. No deviation order/ additional cost etc in this regard shall be admissible (ii)Comprehensive maintenance (AMC) of the system including spare parts for the period of 05 Years from the date of commissioning is deemed to be included in the quoted rates. (iii) Design and details of heating system duly recommended by the manufacturer is to be approved by the Accepting Officer before starting the work at site through GE(AF) Leh. The complete scheme shall be vetted by IIT/ NIT/ Government Engineering College before submitting to the department. (iv) The rates includes control panel for power cabling & control circuits, cablings for pumps, starters etc and as recommended by the manufacturer to make the solar hot water system totally operational. The control cabling shall consists of connections inside the control panel and other hardware. The control panel shall also consists of control & monitoring system for safe running of the entire system on auto mode, including automatic starter with automatic ON/OFF for solar heating as per the temperature setting. (v) All equipments/ accessories/ solar panels etc shall conform to relevant IS/IEC/ BS standards as applicable and shall be from reputed manufacturers. Credentials of manufacturers including performance of equipments/ items etc shall also be submitted to GE for approval of makes.

STELLAR RENEWABLES PRIVATE LIMITED (BID ID -3359666)