Based in Poland Open engineering. International collaboration.
Building performance✳Analytical models✳Simulation & HVAC✳Open engineering
01 / About
Engineering expertise, connected to product.
Michal Dengusiak Engineer. Builder. Collaborator.
I’m a Chartered Engineer with around 20 years of experience across building performance, MEP, simulation and computational engineering. I connect engineering specialists with software developers: defining requirements, shaping workflows, testing engineering logic and helping teams adopt new tools.
I co-founded M+J Projekt with Jakub Ziolkowski in December 2019. Through M+J, I delivered SAM development and computational engineering services to Hoare Lea from January 2020 to October 2026, leading engineering content and technical product direction. My earlier work at Arup and Buro Happold established the building-performance and integrated-workflow foundations behind these projects.
I also contribute through AI-assisted prototyping, implementation and debugging, with responsibility for workflow design, engineering testing and validation.
02 / Selected projects
Models, methods & working tools.
Current platforms and earlier work. The problem, my contribution, and what it enables.
Flagship platform · Open source
SAMSustainable Analytical Model
Building geometry, engineering assumptions and simulation often live in separate tools. SAM connects them through a reusable analytical building model, supporting building physics, dynamic thermal simulation, compliance-oriented workflows and HVAC analysis.
My contribution: engineering content and technical product direction, from requirements and data logic to user journeys, acceptance criteria and validation. I work with developers on implementation and debugging, and support engineers through pilots, training and workflow refinement.
The result: a connected platform for model generation, attribution, simulation and HVAC scenario comparison, with shared data and repeatable validation.
.NET modular analytical toolkit
650+ Grasshopper components October 2026 CV snapshot
From model to air process · earlier workflow illustration
02Psychrometrics & HVAC
SAM_Mollier
Air-conditioning processes need a clear connection between moist-air properties, charts and HVAC loads. SAM_Mollier brings psychrometric calculations and air-process exploration into the SAM ecosystem.
My contribution: engineering methods and workflow definition within SAM, alongside co-authored research on the open-source tool and its use in HVAC analysis.
Supports chart-based exploration of air processes and concept-stage HVAC design.
A design model needs usable geometry, engineering attributes and reliable relationships before it can become a building energy model.
My contribution: defining workflows across Revit, Rhino/Grasshopper, IFC, gbXML and simulation tools, with an emphasis on reusable analytical models, traceable identity and validation.
Connects BIM inputs to simulation-ready models. Tas is the primary simulation pathway; native OpenStudio conversion is in development.
◌ Digital twins are an area of interest, not a current SAM capability.
2018 · CIBSE Digital AwardsBest Digital EngineerMichal DengusiakBest InnovationBuro Happold Single Analysis Model
04Earlier work · Buro Happold
Single Analysis Model & BHoM Building Environments
Repeating the same engineering setup across design and simulation tools created opportunities for a shared computational approach.
My contribution: developing the earlier Single Analysis Model approach at Buro Happold and later leading discipline-side Building Environments workflows for BHoM, translating MEP and building-physics requirements into reusable methods.
A progression from project prototypes to shared engineering toolkits. Buro Happold received the Innovation award for the Single Analysis Model.
Engineers need accessible ways to inspect building geometry and understand the data exchanged between BIM and energy-modelling tools.
My contribution: voluntary open-source collaboration on Spider gbXML Viewer and related visualisation workflows, focusing on gbXML, building geometry and BIM/BEM interoperability.
Browser-based visualisation makes engineering data easier to explore and review.
My earlier open engineering work includes TasmanianDevil and practical Revit modelling demonstrations, exploring ways to connect visual programming, building geometry and engineering analysis.
My contribution: computational workflows and demonstrations that make modelling methods tangible. These earlier explorations sit alongside the more connected analytical workflows I now develop through SAM.
