Energy Assessment and Possibility of Installing 3KWP Solar System at DIU CSE Building

Abstract

The consumption of energy has risen gradually over the year as the Urbanization happening rapidly, so the efficient use of energy is one of the biggest concern nowadays. The built environment is also responsible for around 40% of the global energy demand. Changes has been made to make any commercial building more energy efficient .Understanding the use of energy in any commercial building requires a closer insight into the amount of energy consumed and their ways of consumption. The most effective technique to obtain such level of understanding would be to perform an energy assessment. CSE building of Daffodil International University is an 11 storied building with a basement and perking area allocated with two lifts which is used for office work and computer laboratories. Its commercial building but DIU using it as an academic building in rent. The front of the building is west facing. Ground floor used as a lounge area ,level 1&2 used as classroom, level 3 to 6 made up for official work and rest of the floor made up for computer lab. This building energy consumption is based on 100% electricity and water, no gas is used in this building. As part of the building master plan our team conducted an ASHRAE level 1& level 2 energy audit to identify several energy conservation opportunities at the building. After completion of the inspection, we are confident enough that CSE building of daffodil international university has several no cost/low cost energy conservation opportunities it can pursue.

From December 2017 to November 2018, this building spent BDT 2836555 for electricity and April 2017 to March 2018 they spent BDT 190826 for water, their total utility cost was BDT 3027281 .in September 2018 they used maximum electric energy and it costs BDT 448209 and in July 2018 they used electricity which cost BDT 156525. This trend clearly shows that they misuse the electrical energy in September 2018 but if they focused on July 2018, they must use electricity efficiently and can continue the same practices to reduce their utility cost approximately 33.78% of the total electricity consumption throughout the year 2018. It is anticipated that cost of electricity will increase over time. If the cost increase the projected savings will increase correspondingly. These savings can be re-invested in capital improvement of the building, such as replacement of Electrical equipment to the more energy efficient equipment.it is expected that the building can save enough money by replacing these equipment.