Facility Square Footage: ~178,900 sq.ft. | Location: Haughton, LA

  • Commercial kitchen with kitchen exhaust hood, upblast centrifugal roof exhaust fan, and gas-fired make-up air unit
  • 480Y/277V electrical distribution system throughout facility
  • Energy efficient fluorescent and LED lighting throughout facility
  • Provided multiple MEP designs of progressing complexity to provide the owner pricing flexibility
  • Base design included direct-expansion (DX) split system heat pumps in classrooms, various packaged DX two-stage rooftop units with hot gas reheat for dehumidification, a heat recovery variable refrigerant volume (VRV) system serving the admin area, and a packaged DX dedicated outside air unit with energy recovery for energy conservation
  • Subsequent designs included energy efficient heat recovery VRV systems serving 46 classrooms, in lieu of split system heat pumps
  • Data, telephone, and CCTV
  • Fiber optic network backbone design throughout facility

Commercial Kitchen Design

Commercial kitchens are unique design challenges. In these spaces, an engineer’s design must accommodate various heat and grease producing equipment. Because of this equipment, elevated levels of exhaust and ventilation airflow must be provided to maintain acceptable conditions in the kitchen during use. These elevated exhaust and ventilation levels must be provided in such a way as to not disrupt adjacent spaces around the kitchen. Needless to say, commercial kitchen design is a challenge that Purtle & Associates is more than capable of handling.

Energy Recovery Dedicated Outside Air Unit

Due to the dictates of various code authorities, educational facilities require large amounts of outside air. This outside air is delivered into the space by large mechanical equipment specifically designed for this purpose. One drawback associated with this equipment is that it consumes large amounts of energy, which presents a negative cost impact for owners. A method we use to help reduce some of this cost to owners is to employ energy recovery inside the mechanical equipment. Energy recovery re-directs a building’s typical exhaust air to the mechanical equipment (instead of simply rejecting it to the exterior), where it is then used to pre-condition the incoming outside air.

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