ปัจจัยที่มีผลต่อต้นทุนงานระบบปรับอากาศในโครงการอาคารสำนักงาน

Abstract

The purpose of this study is to priorities factors affecting cost of air-conditioning systems in office building projects. Using questionnaire from relating persons in air-conditioning system in Chiang Mai province. The process started by interviewing experts about factors which involve in cost of air-conditioning systems. Then, the obtained information was interpreted for the questionnaire which were distributed to 8 experts including contractors, project owner, air-conditioning systems contractors, or engineers. The Analytical Hierarchy Process (AHP) was adapted to analyze data for factor prioritization. The results of the study reveal that there are eight main factors for air-conditioning systems which are listed in order as (1) finance and installation budget owner (2) costs of air-conditioning and material (3) installation tools. The priorities of forty-five sub factors for the air-conditioning systems are (1) liquidity of contractor cash flow (2) high capital loan (3) overhead cost respectively.