Product Overview
The Split Pressurized Solar Water System is an engineered centralized hot water solution designed for hotels, resorts, hospitals, and commercial buildings requiring stable 24-hour hot water supply.
It integrates:
- Solar thermal collector system
- Pressurized storage tank
- Closed-loop heat exchange system
- Intelligent auxiliary heating control system
The system is designed based on real hotel hot water load conditions and engineering calculations, ensuring stable operation under peak demand and variable occupancy.
Typical applications include hotels, resorts, hospitals, dormitories, and remote/off-grid tourism projects.
Engineering Design Basis
System design is based on standard hotel hot water engineering parameters:
- Water consumption: 40–80 L/person/day
- Peak load factor: 1.2–1.5
- Hot water temperature: 50–60°C
- Cold water inlet temperature: 10–20°C
- Circulation temperature difference: 5–10°C
These parameters are used for system sizing, energy balance calculation, and collector area design.
Engineering Verification System
Each project can be verified before production through engineering calculation:
Hot water demand simulation based on occupancy data
Solar irradiation data matching by project location
Collector area calculation based on solar resources
Hydraulic balance calculation for pipeline system
Heat loss estimation for storage and distribution system
Peak load safety factor verification (1.2–1.5)
Working Principle
- Solar collectors absorb solar radiation and generate heat
- Closed-loop glycol system transfers heat to heat exchanger
- Heat exchanger charges the pressurized storage tank
- Hot water is distributed through a pressurized pipeline system
- Intelligent controller prioritizes solar energy and activates backup heating when required
Key Advantages
- Stable pressure output: 0.6–1.0 MPa for multi-floor hotels
- Collector efficiency: ≥78%
- Energy savings: 60%–90% vs diesel/electric boilers
- Anti-freeze operation: Down to -30°C (closed-loop glycol system)
- Hybrid energy compatibility: Solar / electric / gas / heat pump
- Modular design for phased hotel expansion
- Designed for peak load and redundancy operation
- Service life: 15–20 years engineered durability
Technical Specifications
Solar Collector
- Type: Flat plate / evacuated tube optional
- Efficiency: ≥78%
- Working pressure: ≤0.6 MPa
- Selective coating: High-performance absorber layer
- Wind resistance: Level 10
- Service life: 15–20 years
Pressurized Storage Tank
- Capacity: 1,000L – 30,000L (customized)
- Working pressure: 0.6–1.0 MPa
- Inner tank material: SUS304 / SUS316L stainless steel
- Insulation: 50–100mm polyurethane foam
- Heat loss: ≤2°C per 24 hours
- Design life: ≥15 years
Control System
- Intelligent differential temperature controller
- Solar priority + automatic backup switching
- Anti-freeze protection system
- Temperature accuracy: ±2°C
- Optional IoT remote monitoring
Circulation System
- Closed-loop glycol heat transfer system
- High-temperature circulation pump
- Pipeline options: PPR / copper / stainless steel
- Fully automatic operation
System Sizing Guide
- Small hotel (20–50 rooms): 2,000–5,000L
- Medium hotel (50–150 rooms): 5,000–10,000L
- Large hotel (150–500 rooms): 10,000–30,000L
- Resort / multi-building projects: Modular centralized system
Final system design is confirmed based on architectural drawings, occupancy data, and project location.
Application Scenarios
- Hotels and resorts
- Hospital hot water systems
- Serviced apartments
- Island and off-grid tourism projects
- Staff accommodation camps (oil, mining, construction)
- Government and institutional buildings
Installation & Engineering Support
We provide full engineering support for EPC contractors and international projects:
- CAD-based system layout design
- Hydraulic balance calculation
- Heat loss and pipeline design
- Installation guidance and commissioning support
- Remote technical support
Split system allows flexible installation:
- Collectors: Rooftop or ground installation
- Storage tank: Basement or mechanical room
Energy Saving & ROI
- Solar contribution rate: 60%–90% depending on location
- Energy cost reduction: Up to 70% vs conventional systems
- Payback period: 2–4 years
- Supports green building certification and carbon reduction projects
FAQ
Q: Is this system suitable for large hotels?
A: Yes. It is designed based on peak load simulation with redundancy operation.
Q: How is system performance ensured?
A: Each project is verified through load calculation, solar irradiation data matching, and hydraulic simulation before production.
Q: What happens during cloudy weather?
A: Backup heating system automatically activates to maintain stable hot water supply.
Q: Can it operate in cold regions?
A: Yes. The closed-loop glycol system supports operation down to -30°C.
Q: Do you provide engineering design support?
A: Yes. We provide CAD-based system design and full engineering calculation support.
Q: Can the system be customized?
A: Yes. All systems are fully customized based on project requirements and drawings.
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