MTD
www.mtddergisi.com
ULUSLARARASI HAKEMLİ TASARIM VE MİMARLIK DERGİSİ
Ocak / Şubat / Mart / Nisan 2017 Sayı: 10 Kış - İlkbahar
INTERNATIONALREFEREEDJOURNAL OF DESIGNANDARCHITECTURE
January / February / March / April 2017 Issue: 10 Winter – Spring
ID:121 K:205
ISSN Print: 2148-8142 Online: 2148-4880
(ISO 18001-OH-0090-13001706 / ISO 14001-EM-0090-13001706 / ISO 9001-QM-0090-13001706 / ISO 10002-CM-0090-13001706)
(Marka Patent No / Trademark)
(2015/04018 – 2015/GE/17595)
194
ULUSLARARASI HAKEMLİ
TASARIM MİMARLIK DERGİSİ
INTERNATIONAL
REFEREED
JOURNAL
OF DESIGN AND ARCHITECTURE
PRINT ISSN: 2148-8142 - ONLINE ISSN: 2148-4880
programs related to climate, net area and vo-
lume assumptions and construction type, as
well as the defaults of each program, such as
correlation coefficients and average values.
Table 1. Convergence of the Results of EnAd for Heating, Cooling, DHW and Lighting
DesignBuilder
HAP
EnerCalc
Heating
-18%
3%
5%
Cooling
-22%
8%
1%
DHW
9%
-4%
-28%
Lighting
17%
10%
-8%
Usability of EnAd
Usability tests are also conducted to test the
flexibility and ease of use of EnAd. The usa-
bility of the program is tested by means of
a prepared protocol, designed to check the
circumstances under which users have tro-
uble with questions, options, values, expla-
nations and activities. The results of the usa-
bility test reveal that the program is proven
in its usability, understandability, efficiency
and sufficiency, while also being informati-
ve for the user. They validate the usefulness
of the explanations and feedback provided
by the program in improving the design. The
results also show that using EnAd to assess
the energy performance of a building is not
a time consuming process, and can be done
without the need for complex models. As a
part of the usability test, Figure 14 presents
time spent for each step of data input (steps
1-4) and improvement of the design (steps
5-10) in EnAd.
MTD
www.mtddergisi.com
ULUSLARARASI HAKEMLİ TASARIM VE MİMARLIK DERGİSİ
Ocak / Şubat / Mart / Nisan 2017 Sayı: 10 Kış - İlkbahar
INTERNATIONALREFEREEDJOURNAL OF DESIGNANDARCHITECTURE
January / February / March / April 2017 Issue: 10 Winter – Spring
ID:121 K:205
ISSN Print: 2148-8142 Online: 2148-4880
(ISO 18001-OH-0090-13001706 / ISO 14001-EM-0090-13001706 / ISO 9001-QM-0090-13001706 / ISO 10002-CM-0090-13001706)
(Marka Patent No / Trademark)
(2015/04018 – 2015/GE/17595)
195
ULUSLARARASI HAKEMLİ
TASARIM MİMARLIK DERGİSİ
INTERNATIONAL REFEREED
JOURNAL OF DESIGN AND ARCHITECTURE
PRINT ISSN: 2148-8142 - ONLINE ISSN: 2148-4880
0
5
10
15
20
25
30
35
step1 step2 step3 step4 step5 step6 step7 step8 step9 step10
Du
ra
tio
n
Participant 1
Participant 2
Participant 3
Participant 4
Participant 5
Participant 6
Participant 7
Participant 8
Participant 9
Participant 10
Figure 14. Time Spent for Each Step of the Design in EnAd
CASE STUDY: EVALUATION of a LOW-
RISE BUILDING
Description of the Case Study
In this section, the use and major features of
EnAd has been exemplified on a single-fa-
mily house, which is located in the western
part of Ankara. The house selected for the
case study is a terrace house, inhabited since
1994. The terraces on the site feature between
three and five houses; and the house selected
for the study is the center dwelling in a terra-
ce of three houses, oriented in an east-west
direction. The total floor area of the house
is 115 m
2
, of which 60m
2
is the ground floor
while the upper floor is 55m
2
. The ground flo-
or contains a living room, kitchen and toilet,
and upstairs there are three bedrooms and a
bathroom. The house features one meter wide
cantilever floors on the first floor, and there
are no balconies. The house is constructed
using a sandwich wall system and has an un-
conditioned pitched roof. The ground floor is
in contact with the earth, having no basement.
It has low insulated walls with a U-value of
0.80 W/m
2
K, and a moderately insulated gro-
und floor (0.60), ceiling (0.35) and cantilever
floors (0.40). The windows are the standard
type for Turkey having a U-value of 2.20
while a very low window-wall ratio (WWR)
is used, which is about 8%. Architectural dra-
wings of the building are provided in Figure
15.
