Food park: large ammonia heat pump for ~65°C process / heating water
Anonymized engineering sketch from an open-cycle ammonia heat-pump water loop for a meat-processing energy center—customer and drawing identifiers removed.
Engineering data
- Case type
- Anonymized field reference
- Data status
- anonymized_field_reference
- Industry
- Food
- Source temperature
- 15–35°C
- Sink temperature
- 60–65°C
- Temperature lift
- ≈ 25 K
- Heating or cooling duty
- 1280 kW
- Architecture
- Open-cycle / plant-integrated ammonia heat pump water loops
- Result status
- MW-class heating duty integrated with refrigeration machine-room hydraulics
- Key risk
- Hydraulic balancing; ammonia plant-room interfaces; seasonal loop temperatures
- Existing system
- Central refrigeration plant with separate heating / process hot-water duties
- Refrigerant
- R717 (ammonia)
- COP
- Illustrative value
- Annual savings
- Not quantified in the sketch notes
- Estimated payback
- Not disclosed
Project background
A Northeast China food-processing energy center needed coordinated heating water from an ammonia plant room. Design reviews focused on loop temperatures near 65°C and pump-group hydraulics.
Source / inputs
Annotated heating capacity ~1.28 MW class with leaving-water targets near 65°C; pump groups ~50 m³/h class. Schematics retained offline only—not published—to avoid drawing title-block identifiers.
Heat pump solution
Integrate an ammonia heat-pump duty into the machine-room water network with stainless process piping, insulation, and clear source/sink temperature bands for heating versus process users.
COP & savings
No verified COP in the sketch notes. Capacity and temperatures are design annotations for screening discussion only.
Investment / ROI notes
Not estimated here—requires site tariffs and annual hours.