Report on thermal comfort and building energy studies in Jakarta—Indonesia

A field study on thermal comfort and building energy has been carried out in Jakarta—the capital city of Indonesia. Some 596 office workers working in seven multi-storey office buildings participated in this study. This paper examines the neutral temperature of the whole sample, and also examines the neutral temperatures of the sub group sample, such as male and female subjects, subjects under and over 40 years of age, subjects who are considered to be thin, normal and fat, subjects with various ethnic backgrounds, etc. This study also reveals that comfort conditions could be achieved without unnecessary cooling in air conditioned buildings.