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Simple, innovative solution improves school building ventilation

Simple, innovative solution improves school building ventilation
  • Building: Hessle High School
  • Sector: Education
  • Contact:
  • Location: Hull, Yorkshire
  • Feature Products installed (2015):
    • 67 N° HTM® systems for staff rooms
    • 157 N° window & wall louvres
    • 7 N° iNVent Control panels
    • 13 N° Windcatcher X-Air 200 systems
    • 2 N° Windcatcher X-Air 170 systems with solar powered LED architectural lighting system

Ventilation for improved school buildings

It is important to make sure that education spaces are well ventilated, ensuring that air quality within the classroom is appropriate for staff and students.  This provides healthy and comfortable spaces to study or relax.  Hybrid ventilation offers an energy-efficient way to provide outdoor air ventilation to buildings.  In some conditions it can also to cool them, so reducing energy required from conventional sources. 

Following the release of the Facilities Output Specification for the Priority Schools Building Programme, Monodraught utilised our extensive knowledge, product testing, and building simulation skills to develop low energy ventilation systems which meet the requirements in a cost efficient manner.  Hybrid ventilation or HTM provides a solution to meet the requirements of projects that fall under the second phase of PSBP. 

Hybrid ventilation operates effectively throughout the year.  Hybrid ventilation provides a greater level of occupant satisfaction because of the increased ability to exercise control over the ventilation provided.  During winter months, it can continue to maintain good CO2 levels while mixing outdoor air and recirculated room air to ensure air is supplied at a moderate temperature. 

Hessle High School - flagship PSBP School

Monodraught were specified as the hybrid and natural ventilation solution for Hessle High School in 2015.  The flagship school for the PSBP scheme, and one of the first to be built, is the £18.6 million Hessle High School and Sixth Form College in East Yorkshire.

The school, designed by DLA Architecture Ltd and constructed by Galliford Try, created a combined, fit-for-purpose school that operates from just one site, with new science labs, ICT and teaching areas and sports facilities.

Monodraught’s HTM systems were installed throughout the school in classrooms, halls and corridors.  This was complemented by natural ventilation in the form of Monodraught’s Windcatcher systems in larger spaces such as the sports, drama, main halls and the dining rooms.  Two of these units were further enhanced with our solar powered LED architectural lighting system.  This can provide a striking view of the school in the night sky.

Performance of HTM systems Jan 2016-August 2017

The systems have been in place for some time now and we have been able to glean some useful data for the optimum running of the school.

Nick Hopper, Technical Director at Monodraught said “Monodraught are unique in providing a cradle-to-grave service.  We take a solution from design through to installation, service and maintenance.  We were delighted to work with our partners to monitor the systems as Hessle High School for a 12 month period.  In this way we can validate our performance commitments to the school and our contractors and also provide a feedback loop for product improvements.”

Average temperatures have been maintained at between 19-23°C during occupied hours, maintaining ideal thermal comfort for staff and students. Total power consumption has been measured at approximately £7.49 per unit.  Average air quality has been measured at 776 ppm which is well within the BB101 guideline of an average of less than 1,000 ppm.

This data shows that the systems are performing strongly with low running costs and good air quality.  To view the data in more detail, please download the project PDF.

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