Abstract
This paper examines the comfort criteria of ANSI/ASHRAE Standard 55-1992, Thermal Environmental Conditions for Human Occupancy (1) for their applicability in tropical classrooms. A field study conducted in Hawaii used survey questionnaires, physical measurements, interviews, and behavioral observations to collect the data. A total of 3,544 students and teachers completed questionnaires in 29 naturally-ventilated and air-conditioned classrooms in six schools during two seasons. The majority of classrooms failed to meet the physical specifications of the Standard 55 comfort zone. Acceptability votes by occupants of both naturally-ventilated and air-conditioned classrooms exceeded the Standard 55 criteria, regardless of whether physical conditions were in or out of the comfort zone. Responses from these two school populations suggest not only a basis for separate comfort standards, but energy conservation opportunities through raising thermostat set points.
