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Table 1 Summarized energy-related technical solutions of existing office building

From: Towards energy efficiency: retrofitting existing office buildings using smart technologies

Number of energy efficiency measure in EDGE application

Energy efficiency measures

Existing case

EEM01

Window-to-wall ratio

34.06%

EEM02

Reflective roof

Solar reflectance index 76

EEM03

Reflective exterior walls

Solar reflectance index 83

EEM04

External shading devices

Annual average shading factor (AASF) 0.7

EEM05

Insulation of roof

U-value 0.43 W/m2·K

EEM06

Insulation of ground/raised floor slab

U-value 1.61 W/m2·K

EEM08

Insulation of exterior walls

U-value 1.29 W/m2·K

EEM09

Efficiency of glass

U-value 1.98 W/m2·K, SHGC 0.32, and VT 0.41

EEM13

Cooling system efficiency

COP (W/W) 6.44

EEM22

Efficient lighting for internal areas

105.3 L/W