ASSESSING OUTDOOR AIR SUPPLY AND ITS ENERGY IMPLIC

This paper reports an investigation of the outdoor air supply in spaces of a hotel under occupied conditions. It is intended to assess the impact of outdoor air supply on energy use whilst satisfying the ventilation requirement using a hotel as an example. Methods of identifying the available ventilation rates and determining the energy consumption were addressed. Available ventilation rates were based on actual occupancy and recommendations of ASHRAE 62. Energy consumption for cooling and ventilation was determined using the building energy programs HTB2 and BECON. Energy signatures and ventilation operating performance lines were proposed as ventilation performance indicators and diagnostic tools for identifying corrective measures. The amount of available and required ventilation in the hotel being studied and its implication on energy consumption, were quantified and discussed.