Flow Simulation of a Two can RTO(Regenerative Thermal Oxidizer)

The Client:

A leading Energy Recovery equipment (Regenerative Thermal Oxidizers a.k.a. RTO) design and manufacturing company from the U.S.


To conduct a CFD Analysis of a two can RTO system and recommend design changes for flow optimization to enable higher DRE Efficiency.

Client Expectations:

Client expected us to provide recommendation based upon CFD Simulation results. Expected CFD Analysis results were pressure distribution, velocity plots, thermal distribution and streamline across the RTO (Regenerative Thermal Oxidizer). The project nature was of critical since the flow distribution affects the DRE efficiency of the RTO system. The better the distribution, better the heat exchange and energy efficiency. The hidden expectations were to select the right size CFD mesh for CFD Analysis, to apply correct thermal loads after considerations of the heat source and heat sink. The client also expected us to work out the appropriate model to simulate the pressure loss due to the porous media present which is essentially a plate heat transfer.

CFD Analysis Project Challenges:

The biggest challenge in executing the CFD Analysis project was to consider the effect of the “Brick” or porous media. CFD software have provision to use porous media model but it requires data such as Velocity to pressure drop in three principal directions. Our CFD Analyst was in constant communication with the client to receive the data required for the “porous media” model for the CFD Analysis. The client is very supportive and ensured that our CFD Analysis team received the requested data for the CFD Analysis.

CFD Analysis Project Deliverables:

A CFD Analysis project report containing the summary regarding the flow pattern with streamlines was delivered in the form of project report for CFD Analysis.The CFD Simulation report included images such as the pressure contours, velocity contours, temperature contours etc throughout the system. The report also include the images of stream lines across the system. Apart from the CFD report, we also provided video files to show the stream line plots for pressure and velocity. Our CFD consultant also included recommendation for improving the flow distribution across the RTO (Regenerative Thermal Oxidizer) system.




CFD Analysis of RTO (Regenerative Thermal Oxidizer) System

CFD Analysis Project Benefits:

The HVAC CFD Analysis results provided by Desserve Engineering ensured the client regarding the thermal comfort for the building floor. We could suggest the location for exhaust vents based upon CFD simulation which resulted into saving of about 6 months of time. We have no idea how much this would convert into USD cost. In addition to the time saved, the CFD Analysis also introduced the client to a new methodology to predict the comfort parameters which they may consider while doing the building designs. Since the CFD analysis also provides a good view of flow and comfort parameters, it helps in optimizing the energy usage for the requisite thermal parameters.

CFD Analysis Project Hours:

  • CFD Analysis Model Preparation: 25 Hours
  • CFD Analysis Solving Time: 35 Hours
  • CFD Analysis Results Discussion: 4 Hours
  • CFD report preparation: 2 Hours

CFD Analysis Project Duration:

  • 9 days

CFD Analysis Project Team:

  • CFD Analyst
  • CFD Consultant
  • CFD Analysis Lead

Customer Delight Experience:

The client expected us to complete the CFD Analysis project within 20 working days which we delivered in 9 working days. Our CFD experts studied the HVAC parameters to be evaluated using the classical HVAC methods and ASHRAE literature first and then started the modeling for CFD Analysis. Our CFD consultant went through a lot of literature available on thermal and humidity parameters leading to comfort factor prediction which is an essential parameter of any HVAC simulation. Our CFD Analyst ensured that the heat sources and heat sinks are defined properly in the CFD environment in order to lead towards an accurate CFD Analysis.

Building HVAC Market Insights:

The graphs below supports the ever growing demand for energy efficiency in various segments. With the tremendous growth aspects of the building industry, this pushes for more energy efficient buildings. The traditional methodology to assess for the energy consumption using conservative tools is likely to be replaced by CFD Analysis methodology.

Market Insights for Building HVAC

Market Insights for Building HVAC

Similar Areas where CFD Analysis can be useful:

  • CFD Analysis for HVAC simulation of Airport
  • CFD Analysis for HVAC simulation of multi floor buildings
  • CFD Analysis for HVAC simulation of Drying Equipment
  • CFD Analysis for HVAC simulation of Energy Efficient Buildings
  • CFD Analysis for HVAC simulation of commercial buildings such as shopping malls
  • CFD Analysis for HVAC simulation of Sub way platforms
  • CFD Analysis for HVAC simulation of RTO(Regenerative Thermal Oxidizers)
  • HVAC Analysis for a Data Center using CFD Analysis
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