VENTILATION AND HVAC EFFICIENCY

Through the NISHKAM-VENTIL range of software, NISHKAM simulation services include the diagnosis of air flow inside confined spaces and evaluation of the HVAC efficiency in normal conditions or emergency situations With our years of experience, our consultancy teams can help you in assessing accurately the needs in ventilation of your project (work floor, tertiary building, etc). Thanks to the panel of numerical simulation solutions that we have developed, our consultants can offer you the support you need.

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Internal Air Quality

In the context of intenal air quality assessment in work places and industrial workfloors, our experts can provide you:

  • Simulation of the air flow inside confined buildings due to forced or natural ventilation
  • Coupling with the external air flow and wind calculations
  • Evaluation and quantification of air renewal rates and possible recirculation zones
  • Advice on improvement of the ventilation systems keeping energy efficiency in mind
  • Dispersion of pollutants emitted inside the confined spaces due to human occupancy or industrial processes.
  • Coupling with the external air quality, transfer of gaseous pollutants and particles from outdoor to indoor.

Thermal and Aeraulic Comfort

Indoor air quality has become a major health concern in urban settings and with the emergence of the Covid pandemic, its importance has been realised in the most dramatic way. While at home or work, a proper ventilation system ensuring appropriate air renewal is essential. Carefully designed ventilation system ensuring free flow of air and optimum temperature can be simulated accurately, impacting human health in a positive way. Our consultancy team can assist you in the following fields:

  • Evaluation of the indoor air velocities and temperatures and comparison with the thresholds of comfort for human occupancy
  • Quantification of air renewal rates and possible recirculation zones.
  • Advice on improvement of the ventilation systems keeping energy efficiency in mind.

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Tunnels and Mines

For interconnected rooms and galleries, our high-experienced consultants can offer you

  • Modelling of the air flow inside rail, road, river tunnels with natural ventilation and forced acceleration and extraction.
  • Disturbances of the flow generated by trains and vehicles.
  • Simulation of traffic pollution inside and at the ends.
  • Fire and smoke distribution with emergency ventilation.
  • Regulatory compliance of the urban air quality.
  • Healthy benefits of various regulation measures (traffic speed regulation, traffic reduction, smoky vehicles selection criteria, etc).
  • Emergency planning in case of an accidental/malevolent situation.

Emergency Ventilation

Odour emissions play an important role in the perception of an healthy environement by surrounding people, as they deeply affect the quality of life. Odourous industrial plants really affect the acceptability of such activities and business reputation because of population complaints in the nearby residential areas. Our consultancy team can help you to manage the odour impact and assist you in the following fields:

  • Odour exposure modeling by CFD-3D based dispersion model
  • Odour complaints analysis
  • Odour emissions retrieval by inverse modeling
  • Performance analysis of odour reduction measures by dispersion mode
  • Real time odour impact monitoring
  • Predictive simulation of odour impact
  • Optimization of the odour sensor layout

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