and investigate whether or not the building is overheating and if the building is performing as designed. To compare predicted design and measured temperatures the Contractor will need to measure operative temperatures as well as air temperatures. This can be done using a small black bulb thermometer or specialist electronic instrumentation. See CIBSE KS16 for further information. The Contractor shall inform the facilities management team that there may be a difference between the air temperature measured in a room and the design temperature (operative temperature). Thermal Comfort for Special Education Needs For comfort conditions for people with special requirements such as those with physical disabilities, BS EN ISO 7730 refers to BS EN ISO/TR 14415:2005. Where pupils have special needs that affect their temperature response, or for very young pupils an assessment of their particular needs will be required which may mean that higher categories of comfort criteria may be needed in particular areas of a school or across a whole school. Design Calculations for Ventilation and Thermal Comfort Ventilation and thermal comfort design for teaching and learning activities shall be proved by modelling for the occupied period. The modelling assumptions affect the calculation results significantly. For this reason, ESFA projects are required to use the following default assumptions regarding the internal conditions in the occupied spaces of the School. Occupied hours assumed 09:00-16:00, Monday to Friday. Occupancy, lighting and small power set to zero during lunch hour in all classroom areas. The School is assumed to be occupied throughout the summer period for modelling of overheating (this provides a degree of future proofing). An external ambient CO2 concentration of 400ppm.
and investigate whether or not the building is overheating and if the building is performing as designed. To compare predicted design and measured temperatures the Contractor will need to measure operative temperatures as well as air temperatures. This can be done using a small black bulb thermometer or specialist electronic instrumentation. See CIBSE KS16 for further information. The Contractor shall inform the facilities management team that there may be a difference between the air temperature measured in a room and the design temperature (operative temperature). Thermal Comfort for Special Education Needs For comfort conditions for people with special requirements such as those with physical disabilities, BS EN ISO 7730 refers to BS EN ISO/TR 14415:2005. Where pupils have special needs that affect their temperature response, or for very young pupils an assessment of their particular needs will be required which may mean that higher categories of comfort criteria may be needed in particular areas of a school or across a whole school. Design Calculations for Ventilation and Thermal Comfort Ventilation and thermal comfort design for teaching and learning activities shall be proved by modelling for the occupied period. The modelling assumptions affect the calculation results significantly. For this reason, ESFA projects are required to use the following default assumptions regarding the internal conditions in the occupied spaces of the School. Occupied hours assumed 09:00-16:00, Monday to Friday. Occupancy, lighting and small power set to zero during lunch hour in all classroom areas. The School is assumed to be occupied throughout the summer period for modelling of overheating (this provides a degree of future proofing). An external ambient CO2 concentration of 400ppm.
Annex_2F_Mechanical_Services_and_PHE__Technical_Annex_.docx