Simulation of Energy Savings Abstract 2016

Program & Abstracts Book

The 3 rd Engineering Science and Technology International Conference
Faculty of Industrial Technology, Universitas Bung Hatta

st

August 30 th – 31 , 2016
Pangeran Beach Hotel
Padang West Sumatera, Indonesia

Organized by:
Department Of Chemical Engineering
Faculty of Industrial Technology Universitas Bung Hatta
Padang, West Sumatera, Indonesia

A 002

The 3rd Engineering Science And Technology
International Conference


ESTIC 2016
Padang, Indonesia

)-5,!4)/./&.%2'9 !6).'3).!)8,//2
)"2!29 5),$).'.)6%23)49/&52!"!9!
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

Key Words:
Energy Efficiency,
Energy Building,
Energy Saving,
Library Building,
Tropical Climate

Corresponding
Author:
Electrical

Engineering,
University of
Surabaya
Jl. Raya
Kalirungkut,
Surabaya 60292
Indonesia
E-mail:
elieser@staff.ubay

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 CO2 reduction
of 438t /year.

August, 30th-31st, 2016 │A/ 2