Requirement: 450L LNG Cryogenic Tank Design with PESO Compliance Ended

Hello,
Before proceeding, please note the following key requirements:
Design must be fully compliant with PESO (India) and PNGRB Schedule-4 safety standards.
Tank must be suitable for vehicle retrofit application (mobile use conditions).
Integration of telematics-based live monitoring system is mandatory.
🔧 PROJECT REQUIREMENT
We are planning to develop a 450-liter LNG cryogenic storage tank for vehicle retrofit applications in India and are looking for an experienced design engineer/team.
The design must strictly comply with Indian safety regulations and international pressure vessel standards.
📐 DESIGN REQUIREMENTS
Double wall vacuum insulated LNG tank
Horizontal cylindrical configuration
Capacity: 450 Liters
Compliance: • ASME Section VIII Div 1
• PESO (India approval)
• PNGRB Schedule-4
Operating Conditions: • Temperature: -162°C
• Working Pressure: 8–16 bar
• Design Pressure: Minimum 20 bar
Inner & Outer Tank: • Annular gap: 70–100 mm
• Insulation: MLI / Perlite
• Inner material: SS304 / SS316L
⚙️ FITMENTS & PIPING
Minimum 2 Safety Relief Valves
Pressure gauge (above liquid level)
Level gauge + High level alarm
High level auto cut-off
Emergency Shut-Off Valve
LNG Fill Line → Bottom
Vapor Line → Top
Piping as per ASME B31.3
🔥 SAFETY SYSTEM
Emergency Shut Down System (ESD)
Fire detection integration
Auto shut-off on fire / leakage / excess flow
Boil-Off Gas (BOG) handling system
📡 TELEMATICS SYSTEM
Pressure, Temperature, Level sensors
Vacuum monitoring
GPS tracking integration
CAN / RS485 / Modbus output
Real-time alerts: • Overpressure
• Leakage
• Temperature rise
• Vacuum failure
📦 DELIVERABLES
2D drawings (AutoCAD/PDF)
3D model (STEP/SolidWorks)
Nozzle layout
BOM
Stress calculation report
Welding & joint details
PESO compliance notes
📊 FUTURE SCOPE
Bulk production planned (1000+ tanks). Long-term collaboration possible.
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