The paper examines the extent to which user's intervention may compromise the therrmal performance of small sunspaces in the context of a Solar Energy Demonstration Project at Easthall in Glasgow (55°52'N), which was monitored from September 1992 to May 1994. Results indicate a tendency to close down windows etc. late in autumn and open them up early in spring relative to heat demand. In other words a user – driven energy load due to ventilation is higher in autumn and spring than in the central winter period.
Residents completed a questionnaire survey assessing indoor environment and residents' behavior (i.e. when they opened windows/doors, when they operated air conditioners, and so on) during the period of ventilation measurement. The purpose of this study is to measure the ventilation rate in occupied dwellings in Kagoshima City, located in the southern part of Japan, using the tracer gas method and to investigate the relationship between the occupants' behavior in each dwelling and the energy consumption for air conditioning during the summer period.
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