Energy Consumptions in University Case Study : Rajabhat Maha Sarakham University

Abstract

The purpose of this study is to study electric energy usage in 72-year Chalermphrakiat Building, Rajabhat Maha Sarakham University in 4 areas which are an office, a meeting room, a hallway and a lecture room. The survey method was observing 171 rooms, surveying data and analyzing electric energy usage in 4 points which are proportion of electric usage, max Luminosity, electric usage per users and electric usage per area. The study found that the average of proportion of max electric usage is air conditioner system with 76.52% while other electric system and lighting system are 18.06% and 5.42% respectively. The average of Max Luminosity in 4 areas is 4.27 W/  which showed that lighting system is conformed with Criteria and Practice for Energy Conservation Building Design 2009. After comparing data from each areas, it found that the office has the lowest energy efficiency which was 17.30 kWh/person and the hallway was the least with 0.02 kWh/person and comparing 2 sizes of lecture rooms showed that the lecture room with capacity of 30 people had the lowest energy efficiency due to a few number of usage was low but energy consumption was high and the max average of electric usage/ people in the lecture room with capacity of 30 people was 15.39 kWh/person but the lecture room with capacity of 40 people had max average which is 1.20 kW/. It showed relation of area size and amount of electric energy usage that when the active area was larger, the trend of using electricity would increase accordingly.