Planning & engineering of refrigeration systems
From the idea to an efficient refrigeration system – your experts for customized solutions
At cold.world Engineering, we support you from the initial concept idea through to the successful commissioning of your refrigeration system. As a specialized planning office, we develop energy-efficient solutions with natural refrigerants that are precisely tailored to your requirements.
Our engineering services at a glance
1. needs analysis & concept development
We start with the right questions:
- What cooling capacity do you actually need?
- What temperature levels must be reached?
- How are your operational processes structured?
- What expansions are planned in the medium term?
- Are there synergies for heat recovery?
Our result: a well-founded specification sheet that serves as the basis for further planning and minimizes subsequent changes.
2. refrigerant selection & system concept
We analyze which natural refrigerant is best suited to your project:
NH3 (ammonia R717)
- Ideal for large industrial plants
- Highest energy efficiency
- Proven in logistics & food production
- We plan safety technology in accordance with BetrSichV and DGUV
CO2 (R744)
- Perfect for logistics centers & supermarkets
- Excellent for deep-freezing below -30°C
- Integrated heat recovery possible
- Future-proof due to lowest GWP
Propane (R290) & others
- For small to medium-sized applications
- Flexible application options
- Compact design
Cold water systems
- For building cooling & process applications
- Can be combined with heat pumps
- Centralized or decentralized supply
3. detailed planning & design
Thermodynamic calculation
- Precise design of compressors, condensers and evaporators
- Simulation of different operating points
- Partial load behavior & control strategies
- Consideration of ambient conditions
Hydraulic planning
- Pipe dimensioning according to VDI 2078
- Pressure loss calculation
- Optimization of the flow velocities
- Avoidance of boiling delay and oil return problems
Electrical planning
- Determination of power requirements
- Switchgear concepts
- Integration into existing infrastructure
4. energy efficiency & sustainability
We focus on maximum efficiency:
- Highly efficient compressor technology (screw, piston, turbo compressors)
- Optimized heat exchangers with large surfaces
- Frequency inverter for demand-based control
- Free cooling where possible (Free Cooling)
Integrate heat recovery:
- Use waste heat for heating (up to 1 MW+)
- Hot water preparation
- Process heat for production
- Snow retention, underfloor heating
Measurable benefits:
- 20-40% lower operating costs vs. conventional systems
- ROI typically after 3-7 years
- Up to 60% CO2 savings
5. approval planning & documentation
We take care of all the documentation:
- Building applications and building permits
- Test books according to BetrSichV
- Explosion protection documents (for NH3)
- Fire protection concepts
- Noise protection calculations
- Structural analysis for roof superstructures
Complete project documentation:
- P&ID flow diagrams (P&ID)
- Hydraulic diagrams
- Electrical diagrams
- 3D CAD models (collision check)
- Piping isometrics
- Parts lists & data sheets
6. tendering & awarding
We ensure competition and transparency:
- Bills of quantities according to VOB/VOL
- Technical specifications
- Suitability test of the providers
- Offer comparison & evaluation
- Negotiation support
- Contract design
Your advantage: Optimal price-performance ratio through real competition
7. construction management & supervision
We keep the overview:
- Coordination of all trades
- Quality control on site
- Monitoring of deadlines & costs
- Construction defect tracking
- Documentation of the construction progress
- Acceptance protocols
8. commissioning & optimization
The decisive step:
- Systematic commissioning checklists
- Functional tests of all components
- Control optimization & fine tuning
- Performance measurements & proof of efficiency
- Employee training
- 24-hour hotline in the critical initial phase
Why cold.world Engineering?
✓ Specialization in natural refrigerants
Over 50 realized projects with NH3, CO2 and other natural refrigerants. We know the challenges and potentials from practical experience.
✓ Manufacturer-independent advice
We are not beholden to any manufacturer and always choose the best solution for your project – not the most profitable one for us.
✓ Holistic approach
From conception to optimization during operation – everything from a single source. No interface losses, clear responsibility.
✓ Focus on energy efficiency
Our systems are not only ecological, they also pay off economically. Low operating costs over the entire service life.
✓ Funding expertise
We know all the relevant funding programs and support you with the application process. Up to 55% funding is possible.