CHIANG MAI HEALTH CARE Energy-Efficiency CENTER · CHIANG MAI HEALTH CARE CENTER Energy Efficiency...

CHIANG MAI HEALTH CARE CENTER Energy Efficiency Study Chiang Mai, January 19, 2017

Unexpected Co., Ltd.

CHIANG MAI HEALTH CARE

CENTER

Chiangmai Municipality

Energy-Efficiency Study

[GIZ – Urban Nexus]



BUILDING ORIENTATION PROJECT LOCATION 18°45'47.2"N / 99°00'40.9"E



PROJECT LOCATION 18°45'47.2"N / 99°00'40.9"E

Chiang Mai Provincial National Housing Authority



SIMULATION OPTIONS

Options Description

Option 1 Improve lighting system (from fluorescent to LED lighting)

Option 2.1 Improve window glazing (from clear single to tinted glazing)

Option 2.2 Improve window glazing (from clear single to Low-E glazing)

Option 3 Adding roof insulation (fiberglass)

Option 4 Additional shading and openings

Option 5 Better AC System: Inverter

Option 6 Photovoltaic

Option 7 Set operative temperature at 26 ºC in Non-Active Room

ENERGY SIMULATION MODEL



OPTION 1: IMPROVED LIGHTING SYSTEM

OPTION 2.1: IMPROVE WINDOW GLAZING: TINTED GLAZING



OPTION 2.2: IMPROVE WINDOW GLAZING: DOUBLE GLAZING WITH LOW-E COATING

OPTION 3: ROOF INSULATION



OPTION 4 : ADDITIONAL WINDOWS

AND SHADING Option 5 : Replace single speed split

unites by inverter type split units



Option 6 : Photovoltaic Option 7 : set operative temperature at 26 ºC in non-active room



Pre-simulation and comparison of options

OPTIONS FOR FURTHER ASSESSMENT



Additional investment costs Annual energy cost savings



SUMMARY • Proper cooling load calculation will reduce investment costs for air-conditioning system

• Tinted glazing and double glazing with low-e coating do not lead to significant energy saving due to efficient shading, however reduce daylight use

• Increased number of openings with more efficient shading leads to a slightly higher energy demand, but improves daylight use and view to ambience

• LED lighting and thermal insulation lead to additional investment costs of less than 200,000 THB each and significantly reduce the energy demand

• Inverter type split units and PV lead to additional investment costs of about 1,000,000 THB each and also lead to significant energy savings with a payback time of 6 (Inverter) and 11 (PV) years

• Combination option 1 (LED + roof insulation) is the most economically effective combination option and reduces the energy demand around 30% compared to baseline

• Combination option 2 (LED + roof insulation + inverter) reduces the energy demand by up to 40%

• Combination option 3 (LED + roof insulation + inverter + solar PV) leads to the highest additional investment costs, however reduces the energy demand by up to 58% compared to baseline



RECOMMENDATION FOR IMPLEMENTATION

Make a proper cooling load calculation!

Combination option 1 (LED + roof insulation) is economically the most efficient option

Combination option 2 (LED + roof insulation + inverter) leads to the highest energy savings, without sacrificing economic aspects

Decision has to be made depending on the available budget

Changes of building Facade

Changes of building Facade



- Provision of elderly health care center to delivery

services at home

- Energy saving plan for building

Law policy



thank you

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