August
August 30
30
thth–
– 31
31
stst,
, 2016
2016
Pangeran Beach Hotel
Padang West Sumatera, Indonesia
Pangeran Beach Hotel
Padang West Sumatera, Indonesia
Program & Abstracts Book
Program & Abstracts Book
Organized by:
Department Of Chemical Engineering
Faculty of Industrial Technology Universitas Bung Hatta Padang, West Sumatera, Indonesia
The
The 3
3
rd
rd
Engineering Science and Technology International Conference
Engineering Science and Technology International Conference
Faculty of Industrial Technology, Universitas Bung Hatta
The 3rdEngineering Science And Technology ESTIC 2016 International Conference Padang, Indonesia
August, 30th-31st, 2016│A/2
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Elieser Tarigan*,#, Djuwari*, Fitri Dwi Kartikasari#,**
* Electrical Engineering,University of Surabaya
**Informatics Engineering,University of Surabaya
#Center for Renewable Energy Studies, PSET, University of Surabaya
ABSTRACT: This work studies energy saving
strategies for a six floor library building at the University of Surabaya, Indonesia. The existing
library building in this study consists of 7000 m2
in total. The building uses a centralized cooling system which is turned on all the time during working hours 07.00 – 19.00. For lighting, all of the lamps installed (FL lamp) are also turned on during working hours. Electricity is supplied by national electricity grid. With current condition, electricity consumption for the building is about
236 kWh/m2.year. About 60% of the energy is for
cooling, 14% for lighting, 13 % for computers, and the rest is for other electrical appliances.
Energy simulation in this study is conducted using a web-based simulation software namely EDGE (Excellence in Design for Greater Efficiency) provided by IFC of World Bank Group. From 29 energy efficiency measures on the simulation, about five parameters are considerable the most feasible to apply, by means that there is no need any retrofit to the buildings. Simulation showed that strategies for saving energy can be achieved up to 25% by applying the five parameters. The parameters are: Energy-saving light bulbs for both internal and external spaces; Daylight photoelectric sensors for internal spaces; Occupancy sensors in bathrooms, conference rooms, and closed cabins; Lighting controls for corridors and staircases; External shading devices with annual average shading factor of 0.59. Saving
energy of 25% would correspond to CO2reduction
of 438t /year.
