Air-conditioning and mechanical ventilation design for queuing enclosures in a bus terminus

Abstract

Summaty Passengers have complained about poor air quality inside several semi-enclosed bus termini in Hong Kong, but analysis of measured contaminant concentrations revealed that the levels were rather low. This implies that 'poor' air quality may not be the only cause of such complaints - the thermal stress experienced by the passengers is likely to be a major factor. For sheltering passengers from the contaminated environment inside a bus terminus, and to provide an acceptable thermal environment, a fundamental solution is to provide air-conditioned queuing enclosures. The method for establishing appropriate indoor environmental design criteria and the ventilation and cooling requirements for queuing enclosures in a bus terminus are discussed. Energy expenditure for ventilating and air-conditioning the queuing enclosure is also considered.