Detailed Project Report on Lead Acid Battery- Maintenance Free Battery (Valve Regulated Lead Acid Battery)

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LEAD ACID BATTERY- MAINTENANCE FREE BATTERY (VALVE REGULATED LEAD ACID BATTERY)
[EIRI/EDPR/1673] J.C. 492
INTRODUCTION
A VRLA battery (valve-regulated lead-acid battery), more commonly known as a sealed battery or maintenance free battery, is a type of lead-acid rechargeable battery. Due to their construction, they can be mounted in any orientation, and do not require constant maintenance.[1] The term "maintenance free" is a misnomer as VRLA batteries still require cleaning and regular functional testing. They are widely used in large portable electrical devices, off-grid power systems and similar roles, where large amounts of storage are needed at a lower cost than other low-maintenance technologies like lithium-ion.
There are two primary types of VRLA batteries, gel cells and AGM. Gel cells add silica dust to the electrolyte, forming a thick putty-like gel. These are sometimes referred to as "silicone batteries". AGM, short for "absorbed glass mat", batteries feature fiberglass mesh between the battery plates which serves to contain the electrolyte. Both designs offer advantages and disadvantages compared to conventional batteries, as well as each other.
AGM (Absorbed glass mat)
AGM batteries differ from flooded lead acid batteries in that the electrolyte is held in the glass mats, as opposed to freely flooding the plates. Very thin glass fibers are woven into a mat to increase surface area enough to hold sufficient electrolyte on the cells for their lifetime. The fibers that compose the fine glass mat do not absorb nor are they affected by the acidic electrolyte. These mats are wrung out 2–5% after being soaked in acids, prior to manufacture completion and sealing.
The plates in an AGM battery may be any shape. Some are flat, others are bent or rolled. AGM batteries, both deep cycle and starting, are built in a rectangular case to BCIbattery code specifications.
Disassembled AGM battery. From left: positive plate, glass mat separator, negative plate. On the right are the five remaining cells (of the six-cell battery).
COST ESTIMATION
Plant Capacity 1680 Nos/Day
Land & Building (5000 sq.mt.) Rs. 5.30 Cr
Plant & Machinery Rs. 1.76 Cr
Working Capital for 1 Month Rs. 26.96 Cr
Total Capital Investment Rs. 34.34 Cr
Rate of Return 40%
Break Even Point 47%
CONTENTS
INTRODUCTION
B.I.S. SPECIFICATION
MARKET SURVEY
LEAD ACID BATTERY MARKET IN INDIA 2013
SMF VRLA BATTERIES IN DEMAND
PRESENT MANUFACTURERS/EXPORTERS/SUPPLIERS
CONSTRUCTION OF LEAD ACID BATTERY
MANUFACTURING PROCESS
THE LEAD OXIDE MANUFACTURING PROCESS
MANUFACTURING PROCESS OF BATTERY CONTAINERS
RECIPROCATING SCREW INJECTION CYLINDER
DETAILS OF MANUFACTURING PROCESS OF BATTERY CONTAINER
ASSEMBLY OF BATTERY
TESTING OF BATTERY
SPECIFICATION FOR VALVE REGULATED LEAD ACID BATTERIES FOR 110V TRAIN-LIGHTING, AIR CONDITIONED AND LHB COACHES
MAXIMUM DIMENSIONS AND WEIGHTS OF MODULES/TRAY
SCHEDULE OF DESIGN PARTICULARS
SCHEDULE OF PERFORMANCE
SAMPLE FOR TYPE TESTING
SAMPLING PROCEDURE FOR ACCEPTANCE TESTS
PROCESS FLOW SHEET DIAGRAM
SUPPLIERS OF RAW MATERIALS
SUPPLIERS OF PLANT & MACHINERY
APPENDIX – A:
01. PLANT ECONOMICS
02. LAND & BUILDING
03. PLANT AND MACHINERY
04. OTHER FIXED ASSESTS
05. FIXED CAPITAL
06. RAW MATERIAL
07. SALARY AND WAGES
08. UTILITIES AND OVERHEADS
09. TOTAL WORKING CAPITAL
10. TOTAL CAPITAL INVESTMENT
11. COST OF PRODUCTION
12. TURN OVER/ANNUM
13. BREAK EVEN POINT
14. RESOURCES FOR FINANCE
15. INSTALMENT PAYABLE IN 5 YEARS
16. DEPRECIATION CHART FOR 5 YEARS
17. PROFIT ANALYSIS FOR 5 YEARS
18. PROJECTED BALANCE SHEET FOR (5 YEARS)
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