Sensible engineering for thermal and process systems

We propose concepts and conduct research-based development of  thermal cycles and processes for renewable based energy systems

About Us

At Sensible Energy, we conduct highly specialized engineering within applied thermodynamics and process engineering.


We contribute to the development process of products and services by modelling, designing and optimizing components and processes. Whether we act as an integrated partner with existing R&D departments, or as an independent development team, we can contribute from idea to market entrance.


Sensible Energy is specialized in mixed refrigerant heat engines such as refrigeration and cryogenic cooling, heat pumps and power production from waste heat sources. Further, we are experts in hydrogen gas systems, operations research and hold a broad knowledge on thermal storage technologies. 

From Concept to Product



We have a strong theoretical base in thermodynamics and within numerical optimization. We also hold significant experience in designing and conducting experimental analysis. We use these competences to analyse, evaluate and improve thermal cycles and processes.

By combining these competences we are able to perform various complex tasks such as:

  • In depth analysis of thermal cycles and processes.
  • Optimise set-points for complex systems.
  • Evaluate component design in terms of process integration. 

We hold a broad knowledge of thermal technologies and energy system integration, and we are excellent in utilizing it when working on thermal processes or developing new designs.

When contributing to novel concept development we make use of our experience, synthesis skills and ingenuity. We are also experienced in conducting early estimates on performance and economic characteristics. 



Collaborations with our clients are always based on the following principles:

  • Sustainable development of energy technologies with respect to environment and economic feasibility.
  • Working with clients from concept development to full operation, and post optimisation if needed. 
  • Long-term collaboration improves our mutual trust and application of competences.

We are experienced in progressing a  concept into a final design. This includes various engineering tasks such as: 

  • component selection or design.
  • develop system integration in terms of PFD, UFD and PID's.
  • prepare detailed workshop drawings.
  • prepare documentation for stakeholders.
  • ensure that environmental constraints are satisfied.

Whether as part of your existing team, or as an independant partner, we can contribute from idea to market entrance.

Our Team

Examples of R&D Contributions

Development of process equipment

Specific design of equipment to satisfy  processes and mechanical design. 


Examples of equipment include:

  • Heat transfer equipment e.g. shell and tube heat exchangers and coils in vessels.
  • Design of Coldbox for cryogenic systems
  • Reactors and vessels for solids and liquids.

Pyrolysis plant design

Research and development of a process system and a range of thermal sub-systems to accomodate pyrolysis of various waste plastics. 

Examples of tasks include:

  • Development of a numerical model of the pyrolysis gas procceses in the system. 
  • Devopment of a process to purify the different products of the pyrolysis plant.

Organic Rankine Cycle for cogeneration using medium temperature heat from solar collectors

Conceptual development and design of a cost efficient medium temperature transcritical Organic Rankine Cycle. 

Design characteristics

  • Heat souce temperature as high as 300 °C
  • Combined heat & power generation for district heating systems
  • Design based on availability of serially produced components
  • Low CAPEX design (approx 5000 EUR/kWe)