Industrial Refrigeration &
Heat Pump Engineering

Precise coordination. Safe commissioning. Efficient operation.
Focus on industrial refrigeration systems and large-scale heat pumps – using natural refrigerants (NH₃ / CO₂) as well as conventional refrigerants (HFC/HFO).
Master refrigeration engineer · 20+ years of experience · large projects · DE/EN · international · Industry & Marine

I’m Sascha Wenke, a master refrigeration engineer with more than 20 years of experience. As an independent specialist and consultant, I support industrial refrigeration and large heat pump projects end-to-end – from early technical clarification and site/project management to commissioning, optimisation and troubleshooting – hands-on, safety-focused, and with clean documentation.

SERVICES
CONTACT

20+
Years of experience

NH₃ / CO₂
Natural refrigerants

Industry & Marine
Including special applications

About

I get systems running reliably – on schedule, safely, and with real technical depth. My background spans technical clarification and concept development, project and site management, commissioning, service and maintenance – in industrial environments as well as maritime applications. Core focus: NH₃/CO₂ and large heat pumps, complemented by extensive experience with HFC/HFO and existing systems. Communication: German & English.

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Technical depth

From safety concepts and controls to operator handover: I stabilise complex systems and document everything clearly.

  • Functional & safety tests, acceptances
  • Parameterisation, control strategies, fine-tuning
  • Reports, evidence & handover documentation

🌿

Technology focus

Natural refrigerants and large systems are my day-to-day work – implemented pragmatically, safely and efficiently.

  • NH₃ & CO₂ (incl. parallel systems/cascade)
  • Large heat pumps & heat recovery
  • HFC/HFO: retrofit, re-optimisation, operation

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Site & project office

I bridge the gap between the jobsite and the project office: clear interfaces, reliable coordination and direct communication (DE/EN).

  • Site & project management / technical support
  • Coordination, schedule & quality control
  • Industrial, marine & special applications

Services

From technical clarification and concept development through tendering, project management and commissioning to service, maintenance and optimisation in operation – one partner, clear engineering, practical execution.

At a glance

For operators, contractors and planning teams – when things are technically demanding and reliability matters.

  • Technical clarification, consulting & concept development
  • Cooling load calculation, tendering & supplier selection
  • Site & project management / interface management
  • Commissioning, operator handover & functional evidence
  • Service & maintenance – on-site and remote
  • Energy optimisation, troubleshooting & aftersales
CONTACT

Sound technical analysis as the basis for all subsequent steps – from initial assessment and target definition through to a well-founded concept decision.

  • Assessment & technical situation analysis
  • Concept development & system selection (NH₃ / CO₂ / HFC/HFO)
  • Interface clarification & technical boundary conditions
  • Technical consulting for operators, planners & contractors

Robust cooling load and performance calculations plus technical design as the basis for tendering and procurement.

  • Cooling load, performance data & system comparison
  • Tender texts, functional descriptions & interface specifications
  • Bid review, technical clarification & award support
  • Supplier selection focused on maintainability, operational safety and efficiency

Clear technical project leadership – on site and in the project office, focused on schedule, quality and interfaces.

  • Technical owner’s representative / project support
  • Coordination of trades & installation sequences
  • Acceptances, punch list management & handovers
  • Documentation and evidence management

Structured commissioning including interface clarification, safety and functional verification – so the system enters stable automatic operation.

  • Commissioning plan, checklists & commissioning reports
  • Functional & safety tests (NH₃/CO₂ as well as HFC/HFO)
  • Controls fine-tuning, load behaviour & stabilisation
  • Operator handover, training & complete documentation

Reliable support for refrigeration systems and large heat pumps in ongoing operation, on-site and remotely. Fast response times, structured diagnostics and complete documentation.

  • Regular service & maintenance – on-site and remote
  • Remote access to systems: fast diagnostics & short response times
  • Fault resolution & re-optimisation in operation
  • Maintenance records & complete documentation

Practical efficiency measures in real operation – measurable and sustainable, without unnecessary theory.

  • Analysis of operating parameters, controls & load profiles
  • Optimisation of temperature/pressure levels and hydraulics
  • Heat recovery & integration into energy concepts
  • Lower operating costs with stable operation

Root-cause analysis for faults and unstable operation – fast, structured, and supported until a stable solution is in place.

  • Troubleshooting: cause analysis and sustainable measures
  • Stabilisation & re-optimisation (including existing plants)
  • Aftersales support: modifications, operator questions, documentation gaps
  • Support until reliable system performance is achieved

References

Selected projects from practice – from concept development and cooling load calculation through commissioning to service and maintenance. Active internationally, across sectors and committed to delivering technically demanding projects reliably.

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International food cold store

Food industry · large-scale project · international

Full project management for one of the largest international food cold stores – from concept development and cooling load calculation through tendering to technical project management on site, with clean documentation and structured operator handover.

  • Concept development & cooling load calculation
  • Tendering & bid review
  • Technical project management & acceptances
  • Operator handover & complete documentation

🔬

Freeze-drying systems – pharma & medical

Pharmaceutical & medical industry · remote & on-site service · ongoing support

Service, maintenance and technical support for freeze-drying systems in the medical and pharmaceutical industry – remotely and on-site. The highest standards of system safety and complete documentation are reliably met. Remote access to systems enables fast diagnostics and short response times.

  • Regular service & maintenance
  • Fault diagnostics & troubleshooting
  • Remote service & remote monitoring
  • Complete documentation & handover

♨️

Large-scale heat pumps – commissioning & service

Industry · large heat pump · commissioning & ongoing operation

Commissioning, maintenance and service of industrial large-scale heat pumps – structured, on schedule and focused on stable continuous operation. Controls fine-tuning and operating parameter optimisation deliver maximum efficiency and reduced operating costs. Systems can be monitored and supported remotely.

  • Structured commissioning & functional evidence
  • Controls fine-tuning & load optimisation
  • Maintenance & aftersales support
  • Remote service & remote diagnostics

🛳️

Server cooling on offshore converter platforms

Marine & offshore · special application · natural refrigerants

Concept development for server cooling on offshore converter platforms using natural refrigerants – a technically demanding special application in the maritime environment. Strict requirements regarding space constraints, operational safety and the use of natural refrigerants (NH₃/CO₂) were central to the design.

  • Concept development & system design
  • Natural refrigerants (NH₃ / CO₂)
  • Maritime standards & safety concepts
  • Close coordination with contractor & planner

Wherever industrial refrigeration and heat pump technology requires precise execution – across sectors and open to new requirements.

Plant manufacturers · general contractors · planning firms · industrial operators · food industry · logistics centres · pharma & medical · marine & offshore

Process

A clear process reduces friction: define requirements early, make interfaces unambiguous and work through commissioning in a structured way – so systems run stable, efficient and safe.

1 · Clarify

Assessment, target definition, interfaces and technical boundary conditions – as the basis for solid decisions.

2 · Design

Cooling load, system selection, tendering and bid review – with focus on operational safety, maintainability and efficiency.

3 · Deliver

Project support on site and in the office: coordination, schedule & quality control, acceptances and documentation.

4 · Commission & operate

Checklists, verification, controls fine-tuning and operator handover – plus service, optimisation & troubleshooting in ongoing operation.

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Structured

Clear steps, clean handovers and documentation – so systems don’t just start, they work reliably day-to-day.

  • Checklists, reports, verification
  • Transparent decisions
  • Operator-focused handover

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Collaborative

Solution-oriented cooperation with clients, contractors, planners and service teams – in German and English.

  • Technical coordination
  • Clear interface communication
  • DE/EN in engineering context

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Hands-on

Practical and accountable – especially valuable under time pressure, during faults, staffing bottlenecks or complex commissioning.

  • Stabilisation in real operation
  • Root-cause analysis instead of symptom treatment
  • Flexible internationally (domestic & abroad)

Contact

Please briefly describe your goal, system type and project status – I’ll get back to you promptly.

Wenke Refrigeration | Air Conditioning | Consulting

Sascha Wenke
An der Alexanderheide 3
26215 Wiefelstede (Germany)

Phone: +49 441- 92207053
Email: info@wenke-kaelte.de