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HVAC RH-VAC Download brochure

One stop tool for H-VAC system design

UNIQUE & COMPLEX NON-STANDARD APPLICATIONS

 HVAC system

 BUILDING INTERNAL AIR

  • Heat load.
  • Temperatures, humidity, pressure.
  • Sizing of fans, louvres, ducts.
  • Heat exchangers.
  • Recirculation rates.
  • Control philosophy.

 

WATER SYSTEMS (HEATING/COOLING)

  • Pipework velocities, pressure drops.
  • Pump and valve sizing.
  • Control philosophy.
  • Flow balancing in branching networks.
  • Calculation of NPSH and prediction of cavitation.
  • Water hammer.
  • Sizing of safety relief valves.

CHILLER UNIT

  • Compressor performance.
  • Pressures, temperature.
  • Condition dependent COP.
  • Design of compound refrigeration cycleS with multiple compression/expansion loops.
  • Evaporator design: natural circulation or once-through.

 

HEAT REJECTION SYSTEM

  • Cooling tower sizing.
  • Performance according to ambient wet bulb temperature.
  • Evaporation rate as function of environment wet bulb temperature.
  • Pump sizing and energy optimization.
  • Fan sizing.

 

FOR HVAC, FLOWNEX EXCELS IN NON-STANDARD APPLICATIONS.

SPECIALIZED APPLICATIONS:

  • Heating: Building heating or district heating.
  • Design of liquid circulation or distribution systems: pump & pipe sizing.
  • Air cycle refrigeration: aircraft cabin pressurization from engine turbocompressor.
  • Insulation sizing.

 

 

Flownex® gave an excellent overview of all interactions in the assembled system. Hence we were able to design a system that fits into a confined space and still control the temperatures and humidity within the tight ranges required by high-voltage power electronics.

Dr. Herman van Antwerpen - System Engineer - M-Tech Industrial