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Case Study : 30 Tons Heat pump hot water project in Viet Nam
发布时间：2025.06.03Case Study : 30 Tons Heat pump hot water project in Viet Nam
Here is the Case-Study about our 50 tons hot water project in our Vietnam customers :
Professional Budget Proposal for 50-Ton Heat Pump Hot Water System
Prepared for: MiniMigo Hotel, Vietnam
Prepared by: EVE ECO-PRODUCTS
Date: 2025-04-15
1. Project Overview
The proposed 30-ton heat pump hot water system is designed to meet the daily hot water demands of your hotel with high energy efficiency and reliability. The system utilizes a 30P heat pump unit paired with a 30-ton insulated water tank, ensuring stable hot water supply while minimizing operational costs.
2. System Working Principle
The heat pump operates on the reverse Carnot cycle, transferring ambient heat energy to water through four stages:
- Evaporation: Ambient air is drawn into the evaporator, where refrigerant absorbs heat and vaporizes.
- Compression: The compressor pressurizes the vaporized refrigerant, raising its temperature.
- Condensation: High-temperature refrigerant releases heat to the water in the storage tank via a heat exchanger.
- Expansion: The refrigerant passes through an expansion valve, cooling and restarting the cycle.
Key Advantages:
- COP (Coefficient of Performance): 3.8–4.2 (1 unit of electricity generates 3.8–4.2 units of heat).
- Eco-friendly: Zero direct carbon emissions.
- 24/7 Operation: Stable performance in ambient temperatures of 10°C to 45°C.
3. System Components
Item | Component | Specifications |
1 | 30P Heat Pump Unit | - Capacity: 50 kW - Refrigerant: R134a/R410a - Power: 3-phase, 380V/50Hz |
2 | 30-Ton Water Tank | - Material: SUS304 stainless steel - Insulation: 50mm polyurethane foam |
3 | Circulation Pumps | - Flow rate: 15 m³/h - Head: 20m - Redundant backup pump |
4 | Piping System | - PLC-based automation - Temperature sensors, flow meters, alarms |
5 | Control System | - PLC-based automation - Temperature sensors, flow meters, alarms |
6 | Safety Devices | - Pressure relief valves, leak detectors, circuit breakers |
7 | Installation Kit | - Brackets, bolts, electrical wiring, tools |
8 | Backup Power | - Optional diesel generator/UPS (recommended for uninterrupted operation) |
4. Installation Process Flowchart
Phase 1: Site Assessment
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Phase 2: Foundation Preparation (heat pump base + tank platform)
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Phase 3: Install Heat Pump Unit & Water Tank
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Phase 4: Connect Piping & Circulation System
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Phase 5: Electrical Wiring & Control System Setup
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Phase 6: System Testing & Commissioning
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Phase 7: Staff Training & Handover
4. Budget Estimate
Item | Name | Unit Cost $ | Quantity | Total cost |
1 | 30P Heat Pump Unit | $12,000 | 1 | $12,000 |
2 | 50-Ton Insulated Tank | $8,500 | 1 | $8,500 |
3 | Circulation Pumps | $1,200 | 2 | $2,400 |
4 | Piping & Insulation | $3,000 | 1 | $3,000 |
5 | Control System | $2,500 | 1 | $2,500 |
6 | Installation Labor | $4,000 | 1 | $4,000 |
7 | Grand Total | $35,900 |
Notes:
- Prices exclude optional backup power.
- Annual maintenance contract: ~$800/year (recommended).
6. Energy Savings & ROI
- Annual Electricity Savings: ~60% vs. electric boilers.
- ROI Period: 2–3 years (based on Vietnam’s electricity rates).
7. Conclusion
This system guarantees a reliable, cost-effective hot water supply for your hotel, aligning with Vietnam’s sustainability goals. We propose a project timeline of 6–8 weeks from approval to commissioning.
For questions or adjustments, contact:
Attachments:
- Technical drawings
- Component certifications
- Warranty terms
End of Proposal
This template balances technical details and client-friendly explanations. Adjust costs and specs based on your company’s data. Let me know if you need further refinements!