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HVAC

Flownex is the perfect tool to effortlessly execute integrated ducting design, refrigeration cycles with complicated refrigeration, costing calculations, or many more simulations to optimize and improve your HVAC solutions. 

OVERVIEW

Flownex includes a comprehensive component library for analyzing large custom HVAC systems. This enables engineers to quantify conditions through the entire HVAC system in both steady state and transient operation. Furthermore, Flownex contains the complex fluid models needed to simulate accident scenarios and help engineers prove the safety of their designs.

Typical Uses:

FLOW DISTRIBUTION

  • System losses
  • Flow balancing
  • Component Sizing
  • Psychometry calculations

REFRIGERATION SYSTEMS

  • Performance prediction
  • Cycle efficiency
  • Component selection and sizing
  • Determine operating ranges

CONTROL OPTIMIZATION

  • Evaluate temperature, humidity and
    pressure requirements with system
    feedback
  • Optimize control philosophy
  • Test Modes and States
BROCHURE

DESIGN AND OPTIMISE ADVANCED HVAC SYSTEMS

The key to designing and optimizing advanced HVAC systems is having the power to quickly iterate on different components, system layouts, and settings of each part of the system. Flownex enables rapid virtual layout, parametric studies, drag-and-drop component changes, and a wealth of other features that let you quickly drive your design to an optimal configuration. 
 
Key HVAC specific features include:
  • Complete solution to calculate temperature, humidity, and pressure requirements
  • Achieve optimum flow distribution with maximum energy efficiency
  • Investigate varying environmental conditions on HVAC system and improve design
  • Sizing of flow control components, fans, and refrigeration cycles

IMPROVE OVERALL SYSTEM EFFICIENCY​

When working to increase efficiency, you need a tool that treats your HVAC design as a complete system, not oversimplifying or over complicating things.  

Specific tasks that HVAC experts use Flownex for include:

  • Balance and optimize plant (air streams, chilled water streams, cooling towers, heat exchangers, refrigeration cycles)
  • Evaluate different control strategies by comparing total power consumption
  • Investigation different heat recovery systems to quantify cost-saving potential

INVESTIGATE RISK AND PERFORM DESIGN SAFETY

The same rich feature set in Flownex that drives optimization can also be put to work in assessing the safety of your air-handling systems. Key capabilities include: 

  • Analyze the capabilities of a system to maintain negative pressure environments in accident scenarios
  • Simulate the operating of critical systems when failures occur in the primary control system to ensure that the redundant control systems function correctly in maintaining safe conditions after a failure
  • Analyze the spread of contaminants through the system during accident scenarios using the mixed fluid models in Flownex to investigate and provide insights into the effectiveness of key safety systems
  • Plant response simulations
  • Accident scenario investigations
  • Qualification of promising designs for primary, auxiliary, and safety systems

Features

Flownex boasts hundreds of features that are applicable across industries.  Here are a subset that apply directly to HVAC system simulation:

  • Modern and intuitive user interface
  • Accurate fluid models
    • Humid air model
    • Two Phase Refrigerant models
    • Secondary refrigerants (Ethelene Glycol, Propylene Glycol, etc.)
  • Full transient capabilities, including:
    • Adaptive time-step functionality
    • Thermal and Rotational Inertia
    • Distributed control system library
  • Comprehensive component library for modeling of both chilled water systems and air handling units
  • Comprehensive library of ASHRAE ducting components
  • Customizable components allowing multiple levels of detail where limited performance data is available
  • Capability to import complex chilled water piping from Revit BIM files
  • Built-in design and analysis features allowing automated parametric studies
  • ISO9001 certification and NQA-1 compliance
  • Transient co-simulation capabilities with Ansys products and 6Sigma

Testimonials

“I have found Flownex to be a powerful design tool which can simulate complex systems while producing results which can be practically applied. The interface is user friendly and can be learned quickly. The support team are responsive and quick to assist with technical queries.”

– Jochie van der Merwe (Pr.Eng, M-ASHRAE)
   AECOM
   Practice Area Lead – Mechanical

PADT & Flownex Can Help Take your HVAC Systems to the Next Level

Heating and Cooling systems are complex, and sometimes sensitive systems that require a high level of engineering to get right. PADT understands the complexity, and Flownex has the capabilities needed to accurately, and quickly, model your next design. 

If you are ready to make Flownex part of your simulation workflow, reach out today at info@padtinc.com 

BROCHURE

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