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BIM in the fields of heating, air conditioning, aeraulics and hydraulics with Christophe ONRAET from FISA


Today we are honoring Christophe ONRAET, HEXABIM member since its launch in 2015 and BIM manager at FAUCONNET INGENIERIE since 2012. We will discover his atypical career (DPLG architect now expert in HVAC / MEP), the BIM solutions he develops at FISA, FAUCONNET INGENIERIE. Feedback from one of the users of FISA solutions as well as other subjects around BIM of course!

Hello Christophe, you are an Architect by training and currently BIM Manager at FAUCONNET INGENIERIE, what was your background (BIM)?In addition to this, you will need to know more about it in the first place where you are at the moment when it comes to your visit to the city center, where you can find out more about the business, and you will be able to find out more about this online shopping cart now and again you will find it convenient for you to choose one of the following items: upon

Christophe ONRAET

I obtained my diploma in architecture DPLG in 1993. During 11 years I carried out multiple services in subcontracting in agencies of architects and offices of studies of the north of France. This is my AutoCAD period, exclusively 2D. In 1997 with two colleagues, we create the company AroBAT which very quickly specializes in technical and architectural synthesis missions in the hospital sector.

At the time, we were among the first to migrate from AutoCAD to AutoCAD Architecture and AutoCAD MEP, from 2D to 3D with the start of objects. From 2005, I started to take an interest in Revit, but it is not yet ripe to meet the needs of AroBAT. In 2012, I arrived at FISA to devote myself 100% to Revit MEP: training, creation of families, customer support and application development, immersing myself a little more every day in BIM. And today I will not go back. 

Since its creation in 1985, FISA has become a benchmark for climate engineering specialists in France, could you tell us a little more?

In 1985, Michel Fauconnet, at the time a fluid engineer, embarked on the adventure of publishing software specializing in building engineering calculations. Following technological developments, the solutions developed in aeraulics, hydraulics and thermics are interfaced with AutoCAD, then AutoCAD MEP. It is the beginnings of the construction of a link between graphics and calculations. It is therefore quite natural that from 2010, FISA took an interest in Revit, thus continuing the Plans / Calculations merger. 

En 2012 released the first version of Fisa RMEP (R for Revit) corresponding to the port of the FISA MEP tool running for many years under AutoCAD MEP. The following versions have evolved, as have our customers, step by step, from CAD to BIM with its advantages and constraints. It is on this path, taken 9 years ago by the team of 18 FISA people, that our expertise is built around BIM, with many exchanges in order to experiment, and to find the best possible answers to the challenge of the digital transition. This experience is very empirical and reflects the reality of the revolution we are all living through where nothing is written in black and white and where you have to find your way. As I often say, BIM today is a bit like the far west, and that makes it exciting.

What BIM solutions do you offer in the fields of heating, air conditioning, aeraulics and hydraulics?

Our BIM offer revolves exclusively around REVIT with a main plugin which is now called Fisa-BIM CVC (formerly Fisa RMEP). It is built along three axes:

- the axis of BIM, with specific tools for managing object libraries, implementing and complying with BIM conventions, and a toolbox adapted for BIM referents, BIM coordinators and BIM Managers.

- the axis of CVC, with tools that make it easier to draw and model networks to increase the efficiency of Revit while producing quality graphics.

- the natural and historical axis of FISA, with calculation engines interfaced directly with Revit projects. Bidirectional links make it possible to import the project quantity survey into the calculation engines and to feed back the results to resize networks for example. We currently cover the areas of thermal studies with Visual TTH, aeraulics with FisaDuct, hydraulics with TTH Water, and sanitary plumbing with SaniWin and Pluvio.

How do these solutions promote the digital transition of your customers? Feedback?

Specialist and expert in climatic engineering, RC Clim enjoys a great reputation on a national level, forged with large and medium-sized retailers (Géant, Casino, Carrefour, Leclerc, Auchan, etc.), established throughout France. The company is responsible for installing rooftops (large air conditioners) on the roof. The installation of these machines is complex and is always done with the help of a helicopter. RC Clim then turned to a new clientele and extended its field of expertise to the tertiary sector and healthcare establishments.

RC Clim is also the plumbing specialist and this can be explained historically. About fifteen years ago, RC Clim took up a call for tenders for an air conditioning package.

In the company for more than seven years as a business manager, Mathieu Mourou takes responsibility with four engineers-draftsmen-designers under his direction. It was also during this period that Fabrice Cozzolino, Managing Director of RC Clim, made the decision to switch to BIM with Autodesk Revit and Fisa BiM-CVC software. Mathieu Mourou is in favor of a rapid passage to make Revit second nature. Today, thanks to this technological shift, RC Clim has fifty employees and achieves a turnover of 10 million euros.

"We heard about BIM around us and suspected that it was going to grow and become almost compulsory," explains Mathieu Mourou. “Today, in fact, projects are imposed in Revit, as in a current case, the CFA of Aix-les-Milles. It is with the IPC 4 project (Institut Paoli Calmette 4), a Marseille hospital dedicated to 3st century hematology, started two years ago, that the usefulness of Fisa-BiM CVC and Autodesk Revit has really been realized. makes you feel. It was more particularly manifested in relation to the complexity of the technical rooms. 2,5D allowed the modeling of a large number of elements: the ductwork and hydraulic networks ”continues Mathieu Mourou. This project is now complete and represented more than 100 million euros in air conditioning and plumbing. In general, projects never go below 000 euros for RC Clim.

Revit and Fisa-BiM HVAC Open Up New Possibilities The advantages of Revit are undeniable. Mathieu Mourou demonstrates the following: “When you wanted a section on a plane, with AutoCAD, you had to draw it. With Autodesk Revit, it's immediate. Site workers can thus see all the networks in the field and this is a great help. Revit is a great visual rendering tool ”.

With AutoCAD, calculation notes had to be done with Excel spreadsheets. Calculation notes are documents officially presented to design and control offices and to clients. FISA has developed additional modules to aid in plotting, drawing and the production of calculation and sizing notes in Revit. This therefore represents an appreciable time saving. To summarize, Mathieu Mourou allows himself a shortcut "with Autodesk Revit and the FISA tools, all you have to do is click on a button and the calculation note comes out".

After the realization of the model, Revit and Fisa-MAT also offer the possibility of making the quantitative of the material by allowing to export in Excel the lengths and diameters of the various tubes as well as the fittings, elbows, sleeves ... And the BIM also allows to exchange the digital model with all the partners.

  Other exemples

File name : Example-project-boiler room
File size : 2.6 mb
Download the file
File name : Detail-on-panoply
File size : 610 kb
Download the file

You have been able to work with many BIM managers to develop your solutions, what are their daily issues and needs?

The needs of the BIM Managers we work with are very diverse. Unfortunately very few of them have real experience in the development of a project, the reality of the studies and the site. I can only see too often the implementation of requirements and processes detached from reality, increasing the workload of the real actors of a project and thus building a bad image of BIM.

With the arrival of numerous BIM solutions on the market, standardization for publishers has become essential, what are the challenges according to you?

Standardization will not be applicable or operational immediately. FISA, like certainly other solution editors, and BIM users and actors cannot wait. We all need to find intermediate, transitory solutions to move forward. Even if we know that this will eventually force us to partially or fully take over some of our tools. It is precisely this phase that FISA is actively starting to carry out this year.

What do you think of the adoption of OpenBIM and the various exchange formats (IFC, cobie,) in France?

OpenBIM is essential and compulsory. there is no doubt. However, too often I see confusions when people talk about openBIM and IFC. The challenge is to be able to exchange all the information about the project between the different actors. It is not a question of defining a universal collaborative tool. The presentation made by some institutions on the capacities and role of IFC sows doubt. In the field of fluids, IFC struggles to describe the elements of technical packages. Version 4 has made significant progress in this direction. Unfortunately its use is very low. There is a lot of inertia.

What are your future development axes at FISA?

We are actively pursuing the development of our FISA-BIM HVAC under Revit with the release of new major versions for BimWorld and Batimat 2019. We are also preparing major changes to our historical calculation tools now integrated into BIM processes. Visual TTH, our thermal study tool, will celebrate its 20th anniversary this year. For the future, our development team is actively working on integrating tools into collaborative platforms. We have a lot of hope in the new AutoDESK platform called Forge. 

A final word for the BIM community?

BIM, and more generally the digital transformation of the building, is really a key and exciting moment for everyone. You have to go there without hesitation and without a priori. It's up to you to experiment, to interact with your ecosystem, and to find the advantages for your activity. It's up to everyone to build their BIM, without waiting for taxes and regulations. It will come fairly quickly.

The FISA team will be present on stand A45 at BIM World!
The experts will be at your disposal to carry out live demonstrations!


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