Id Holy Stadium

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SUBMISSION FORM

ASEAN Energy Efficiency and Conservation (EE&C)

Best Practice Competition in Buildings

ASEAN Energy Awards – 2009

In Myanmar 10 – 11th

June 2009

Holy Stadium in Semarang

CATEGORY: NEW AND EXISTING BUILDING



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P a g e 1

CERTIFICATION AND COVERING NOTE FROM CONSULTANTHoly stadium occupies a site area of about 37,000 square meters and was completed in 2007. The building has 3 storey, 1 st

storey: 10,415m2 consist of Tribune (indoor stadium) of 8,684 m2 and 1,731 m2 of perimeter; 2 nd storey occupies 1,239m2

of the perimeter and 3

rd

storey occupies 1,512m2 of the perimeter also. It also has 1500 parking car outside the building.

The details of client and project consultants (as appropriate) are:Client : Gospel of the Kingdom Church (Name of Building) Holy StadiumArchitect : PT Archimetric

M Consultant : PT Metropolitan Bayu IndustriC&S Engineers : PT. Benyamin & Gideon Associates(Structure)

I T E M D A T ACOMPLIANCE(PUT CHECK)

Submission Requirement

- Certification and Note from Consultants 1 page √

- Cover of Report 1 page √

- Overall on-site design Max 2 pages √

- Active Design Max 4 pages √

- Passive Design Max 4 pages √

- Maintenance and Management Max 1 page √

- Environmental Impacts Max 1 page √

- Building Information Max 2 pages √

- Drawings Max 4 pages √

Pre-Qualification Data

- EnergyEfficiency Index: ( kWh/m /yr based on GFA) 150 kWh/m /yr √

- Temperature and Other Settings: Not less than 21 C but not more than

26o

C

24.5 -26o C; 53%-

59% RH

√

- Lighting load (Office – max 15 W/m of GFA); (Others – max 25

W/m2 of GFA)15 W/m2 (GFA)

√

- Operating hours/yr.: To be based on 2,000 hours/year 1,080 hours/yr √- At least 1 full-year of operation prior to nomination in national

competition2 years

√

Holy Stadium hereby agreed to allow the ACE Board of Judges and the Japanese experts to visit the building and verify theauthenticity of the data. However, two weeks in advance notice is required to allow for necessary arrangement.

The undersigned certified that the information given is true and accurate and prepared with the consent of the party/iesinvolved.

__________________ Gospel of the Kingdom Church

Owner

Komplek Grand Marina

Jl. Arteri UtaraSemarang

________________________ Architect

PT. ArchimetricJl. Raya Manyar Tirtomoyo No. 5A

Surabaya

Structure DesignerPT Benyamin & Gideon Associates

Jl. Gayung Sari VII No. 30-32

Surabaya

Mechanical Consultant

PT. Metropolitan Bayu Industri

Jl. Jembatan Tiga 36 FS-FT

Jakarta- IndonesiaTel: +62-21-6611036Fax:+62-21-6611037

E-mail: [email protected]

Endorsed by Focal Point

Ms. Indarti

Head, Energy Conservation DivisionDirectorate General of Electricity and

Energy UtilizationTel/Fax. 62-21 -5224483

e-mail: [email protected]



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p a g e 2

OVERALL ON-SITE DESIGN

Holy Stadium

The layout of the whole ground area, the grey color is the building.

I. BACKGROUND

Holy Stadium is located in the Marina area northern part of Semarang, the Capital of center Java. Total ground area is 37,000m2 consists of 11,000 m2 for the building and the rest is for

parking area (1500 cars).

This building is used for general purpose indoor stadium (8,684 m2) which can occupy

16,000 people (inside the stadium) and the total occupants of 25,000 people for the whole

building which has three storey building surrounding the perimeter of the indoor stadium.

The integrated concept design has been applied to this building, such as:

1. Concept of Shell and Core building, passive design, roof and pitch-roof construction

which prevent solar heat gain from entering to the occupant area.

2. Jet nozzles are installed in the perimeter of the wall to cool only the occupant area. It

reduces the air volume to be cooled instead of using conventional air ducting system

which cools the whole building. Also, jet nozzles can generate the horizontal air

curtain to prevent the heat gain from the roof entering the occupant area.

3. Active heat-pipe air conditioning units which cool only the heat gain from the

occupants and fresh air with Sensible Heat Factor of 0.5-0.6.



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The above integrated concept design of the core building (occupant area) resulted only a

total cooling load of 50% compares to the similar conventional building load.

II. Designs and Environmental Consideration

2.1 Design for the conservation of Energy using Integrated Design Concept of Shell and

Core Building for both passive and active design.

2.1.1 Shell and Core Building

Shell and Core building is designed to prevent the solar

and ambient air heat gain entering to the core building

from the exterior walls and windows. This system is

similar as two zones with two buildings: one building is

the core building covered by the second building/the perimeter building. With this concept we can reduce the

heat gain of the core building by 25-30% of the total heat

gain.

2.1.2 Orientation and shape of the roof and pitch-roof, nozzle, wall insulation and active

design

The longitudinal of the buildings are facing North and South, whereas the northern area of the

building is facing Java Sea, due to the shape of the roof (curvature like airfoil) and pitch-roof

construction, we can utilize the natural wind blow from the Sea to the Land during the

daytime (see Figure 1) and from the Land to the Sea during the night time (see Figure 2) toget rid of inside hot air escaping from the pitch-roof. This hot air is mixing between the hot

air from beneath the insulation roof and the buoyancy hot air from the occupants, and will

continuously escape from this pitch-roof due to the negative pressure generated from thenatural wind in the roof; the aerofoil shape of roof and the pitch-roof (see Figure 3).

The heat gain from the roof can be eliminated from the cooling load calculation as we use

156 jet nozzles installed 2.5m above the stage surrounding the perimeter of the core wall (see

Photo 1) and 36 jet nozzles 9m above the ground at the north wall of the core and blow 15 to

45 degree down respectively to cover the occupant area to generate the horizontal air curtain(see Photo 2), this horizontal air curtain will block the hot air from the upper part of the core

building (hot area) to the occupant area but will let the hot air from occupant area buoyancy

up to the roof due to density different. This concept will reduce the total cooling load by

20%, eliminate the air ducting construction by 80% and reduce the fan power by 40%.

Inner wall of core building and roof are insulated by 3-inch and 2-inch Cell-Spray K-13

insulation respectively to insulate the noise, sound impact as well as the thermal and the

condensation. Wall insulation will prevent the heat gain from perimeter building (non air

conditioning) to core building (indoor stadium) as well as the sound generated inside the core

building to surrounding area (outside the complex).All these passive designs, orientation, shape of the roof and pitch-roof, nozzles, and wall

insulation will let the whole total cooling load of the core building to leave only two heatgains:



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1. Heat gain from the occupants and indoor lighting.2. Heat gain from the ventilation air (fresh air).

These two heat gains will only contribute 50% of the total heat gain from conventional building, occupant heat gain has 50% of latent heat and 50% of sensible heat due to the

average heat gain from occupants consist of 50 W (170 BTU/H) latent heat and 50 W (170BTU/H) of sensible heat per person equivalent to Sensible Heat Factor of 0.5.

Lighting and sound system will contribute 100% sensible heat; however it is relative small

compares to the occupant load. The Sensible Heat Factor of the ventilation air is 0.5-0.6 (dueto the hot and humid climate in Indonesia), therefore the total Sensible Heat Factor will also

be 0.5-0.6. This small Sensible Heat Factor can only be achieved by the air conditioning units

which have Sensible Heat Factor of 0.5-0.6. Therefore Active Heat Pipe Air conditioning

units are the best choice.

Figure 1: Natural wind blows from Sea to Land during the Day time

Figure 2: Natural wind blows from Land to Sea during the Night time

SEALAND

DAY TIME

Natural wind

+ +- -

LAND SEA

IGHT TIME

Natural wind

+ + - -

ressure enerated ressure enerated

Pressure eneratedressure enerated



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Figure 3: Schematic figure of Shell and Core building, pitch-roof and horizontal air curtain

Photo 1: Nozzles in the perimeter stage Photo 2: Nozzles in the northern wall of

The Core building

III. Passive Design

The building is surrounded by the parking lot made

of the cone block to let the rain water absorbed by

the ground instead of going to drainage system to

the sea. Among the car parking lot there are trees

to cr eate the micro climate .

Since 60% of the perimeter building is non-air

conditioning (only the meeting room, café,

bookshop are air conditioning) we can useordinary building materials for perimeter building, whereas about 30% of building envelop is

Pitch-roof

Jet Nozzle



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using façade of UV laminated glass to reduce some radiation heat gain. All entrance and

corridors to the core building are non-air conditioning since the visitors only pass through

these areas to enter the core building.

3.1 The Core Building

The core building is semi-circled with half-cone shape, with

the performance stage is located in the center, to let all the

audience can see through. The height of the tribune is 8.0 malong the perimeter of the semi-circle, sloping down to the

center in half cone shape.

The performance stage of the core building is in the northern

part of the wall, all the inner walls are insulated by Cell-Spray K-13 insulator to absorb the noise, sound impact as

well as thermal and condensation control.

3.2 Day lighting in core building and Pitch-roof construction for escaping the hot air

Day lighting in the core building is obtained by having

20% of façade glass on the upper part of east and west

wall, and from the diffuse light entering through thePolycarbonate in the pitch-roof (see Figure 4) whereas

the hot air is escaping from the hollow of the pitch-roof .

This day lighting can contribute about 30% of the lighting

load during the day time.

Figure 4: Pitch-roof construction for day lighting and hot air escaping

ol carbonate

Hollow

ot air



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3.3 The Insulation material used for the core wall and roof Cell-Spray K-13 insulation is a total system insulation which has sound as well as thermal

insulation capabilities, manufactured under very strict quality control and modern process to

form high quality fibers that resistance to fire, mold, mildew and insecticide.

As a sound insulation, this fiber can absorb soundenergy in stead of reflecting it, reduce

reverberation time (see left figure) and make

speech and music more intelligible. Excessivenoise is eliminated while greatly improving

ambient sound quality.

As these fibers are sprayed in place, they willformed a monolithic layer with dead air spaces

between and within their hollow fibers to eliminateair infiltration as a result a more effective in place

product with exceptionally low heat transfer

characteristics with ‘K’ factor of 0.031 w/m2.K

(25 mm thick) (see left figure).

IV Active Design

4.1 Lighting

Since 30% of indoor lighting is produced by day lighting, therefore lighting in the core

building using down-lighting for the audience area can be reduced to its intensity of 7 W/m2.

Spot-lighting is used for performance stage with the total power of 75 kW.

4.2 Jet Nozzles

In order to reduce the volume of the hot air in the core building which will consequently

reduce the cooling load by 20%, 156 jet nozzles and 36 jet nozzles are installed in the

perimeter of the highest stage and the northern wall respectively, blow 15 and 45 degree

down to the occupant area to generate horizontal air curtain to prevent hot air from upper area(beneath roof) to occupant area.

The diameter of the jet is 350 mm with air outlet velocity of 6.14 m/s will give a throw of 38

meter horizontally which is enough to cover the whole occupant area (the total width of the

core building is 75 m).

This jet nozzle is not similar to ordinary one, it

consists of 3 circles, this concept will create bigger

core and longer throw to cover the whole occupantarea.

Jet Nozzle

Air Return



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4.2.1 The benefit of using jet nozzles

1. To reduce the hot air volume by 50%, consequently the size and the input power of fan will be reduced to 50% and 40% respectively. In addition to that the occupant

area will be cooled faster.2. To reduce the external static pressure of the fan due to eliminating the friction of air

ducting system will reduce the power of the fan.

3. To reduce the air ducting system by 80%, consequently the investment cost of air ducting system will be reduced to 80%.

4. To be able to use light construction of the roof, which will also reduce the investment

cost of the roof.

5. To be able to prevent the roof heat gain entering to occupant’s area and let the hot air

from occupant’s area buoyoncy up to the roof (horizontal air curtain) which canreduce the heat gain by 20%.

4.3. Active heat- pipe air conditioning units

Due to the intergrated concept of shell and core building, building orientation, passivedesign, day lighting, shape of roof and construction of pitch-roof and jet nozzles, the total

cooling load of this building becomes 50% compares to the ordinary conventional

building. Due to the higher latent heat gain from occupants and ventilation air, the room

sensible heat factor will be ranging from 0.5 – 0.6.

Active heat-pipe air conditioning units which are designed for cooling bigger latent heat

are the best choice for this small sensible heat factor.

Indoor unit of active heat-pipe Outdoor unit of active heat-pipe

4.3.1 There are 32 units of active heat-pipe air conditioning units with the cooling capacity

of 360,000 BTU/H (105,572 W) each are installed in the core building. Each unit has10,500 CFM (4958 l/s) air flow and served by 8 units of jet nozzles for the air

distribution; it consumes power of 39 kW or energy efficiency ratio is 1.3 kW/TR , it

can be independently operated with a three-step cooling capacity (3 equal capacity



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compressors of 12 hp) to maintain the temperature as well as the relative humidity. It

is also equipped with MERV 8 air filter to clean the air.

4.3.2 The total installed cooling capacity is 32 units x 360,000 BTU/H = 11,520,000BTU/H or 1280 BTU/H/m2 of the core building. Usually a similar building needs

1500 – 2000 BTU/H/m2 or 17%-56% higher than the installed cooling capacity.

4.3.3 During the peak operation (16,000 people) we only need to operate 22 units of the

active heat-pipe or 69% of the installed cooling capacity. The room temperature can be 24.5 ~26 degree C with the relative humidity ranging from 53% ~59%. This

condition is obtained by operating with the cooling capacity of 880 BTH/H/m2 or

only roughly 50% of a similar building as calculated above.

4.3.4 Since the number of occupants in the core building are ranging from 5,000 ~16,000 people for each event, the number of the air conditioning units will be operated

accordingly which is very effective and efficient.

4.3.5 These active heat-pipe air conditioning units are very flexible and very efficient.

4.3.6 The basic principal of Active heat-pipe

Pre cool coil is installed in front of the cooling

coil to absorb the sensible heat and expel the

same amount of heat in reheat coil (after thecooling coil). Therefore active head-pipe air

conditioning units can perform sensible heat

factor from 0.45-0.65 and no additional

energy such as electric heater is needed which

is normally used to control both temperatureas well as relative humidity inside the

conditional room.

16,000 people attending a healing pray in Holy Stadium in 7 July 2007

AC equipped with Active Heat Pipe

MOISTURE CONTAINW = ( 12.5 - 7.9)gr/kg

= 4.6gr/kg

I N

27°CRH 55%

(12.5 gr/kg)

12°CRH 90%

(7.9 gr/kg)

17°CRH 64%

(7.9 gr/kg)

22°C

RH73%(12.5gr /kg)



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V. Management, Service and Maintenance

There are 20 people doing the service and maintenance of this building and another 27 people

are from outsoucing for routine cleaning and gardening.

Service and Maintainance are divided into two:

1. Building Maintenance.2. Technical Maintenance.

Daily meeting is performed by all supervisors, whereas weekly meeting is conducted by

Service and Maintainance head division with their supervisors.

Since the biggest energy consumption in this building are in air conditioning units and diesel

generators and no elevator and excalator are installed, therefore beside the routine building

maintainance, the service and maintenance are concentrated in Air conditioning units anddiesel generators.

Stucture of Service and Maintenance

5.1 Service and Maintenance for Air Conditioning units.

The active heat-pipe air conditioning units are basically the same concept with packaged

air conditioning unit, the maintenance of this active heat-pipe air conditioning unit is

similar with the one in packaged unit, very simple, unlike chiller unit. Therefore the

routine maintenance of this AC is usually done weekly for air filter cleaning and monthlyfor cleaning the evaporator coil as well as condenser coil and checking the suction

pressure, discharge pressure, inlet and outlet both temperature and relative humidity, and

record the voltage as well as the running currents. Since the total units are 32, only three

people (3 mandays) are needed to do the maintenance with two units/day.



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5.2 Service and Maintenance for Diesel Generator.

There is not much service and maintenance for these 2 units of 1000 kVA diesel

generators, only routine checking and changing the lubrication oil when needed.

5.3. Management

The head division of maintenance also conduct some training for young people as well as

the youth church organisation every month both for technical as well as for management

skill, they can practise their theory directly during the big event arranged in this building.

VI. Environmental Impacts

There is not much solid and liquid waste in this building, since in every big event, the

head division of service and maintenance utilise the young people who have been trainedfrom the youth church organisation to help them to collect both solid and liquid waste andstore in the rubbish bins to be collected and recycled in the following day by the

outsourcing waste contractor.

6.1 Rain water storage tank

There are three big underground rain water storage tanks with the total capacity of 350

m3 in the southern part of the building (see Figure 5). These rain water storage tanks are

collecting the rain water from the building to be utilised for watering the plants. With this

concept, we can eleminate of using ground water and conserve the water usage.

Figure 5: Underground rainWater storage tanksUnderground rain

water storage tanks



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BUILDING INFORMATION

A. General Information1. Name of the building : Holy Stadium2. Name of owner and management company : JKI Injil Kerajaan (Gospel of the

Kingdom Church)

3. Address : Jln. Arteri utara, kompleks Grand Marina, Semarang – Central Java,

Indonesia4. Phone : 62-24-76632222, Fax : 62-24-76632233, e-mail address :

[email protected]

B. Building Physical Information

Physical building background

Brief history: a church only need a pillar less room, should have no balcony, be in one

room for all congregation, comfort air, sufficient light to read, comfort chair for 2-3 hours

service, sound system that can be clearly heard on all position, big enough stage for a large

group performance including dance area, no excess echo, but also not too silent but fit to

sound proofing setting, best view from all position, air ventilation on the roof should can

take the hot air out of upper room so the room will have good circulation and sufficient

fresh air

Single function usage or mix function usage (specify) : Church Saturday & Sunday Service1. Age of building : since July 07, 2007

2. Any retrofit done? When? What? none

3. Total number of storey : 3

4. Total number of basement floor : 0

5. Number of car park storey : 1500 cars6. Total gross floor area :

1st storey: 10.415 m2

2nd storey: 1.239 m2

3rd

storey: 1.512 m2

Tribune: 8.684 m2

7. Surface area of the envelope including the roof to gross floor area ratio :

Roof: 75 m x126 m x 15 m (trust foot, 15 m height) flat

Height to top: 28 meter

Gross floor: 75 m x 126 x 15 m (height)

8. Car park area : 13.158 m2

9. Gross let table area : usable area : net 18.000 m2 (3 storey office)

10. Air-conditioned area :

Office: 126 m x 12 m x 3 storeys

Main room (sanctuary) : + 9000 m2

11. Non-air conditioned area : (18 m x 22 m) + 1000 m2

Plot ratio (total GFA / ground area) : 11.000 m

2

/37.000 m

2



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C. Building Design and Practice Information

12. Plants and landscape design/ wind and natural ventilation/ water features/ daylighting/

etc.

Day lighting: façade glass UV (stop sol mirror) with SF of the glass is 40%

Plants and Landscape design: Trees between car parking lots Natural Ventilation: Pitch-roof

Water Features: Underground rain water storage tanks (ground water tank) 350m2

13. Facade and shading design

- Type of façade: minimalist

- Color of façade: ash gray & blue- Use of shading devices: vertical and horizontal blind

14. Location of service core : The end of exit stair case, toilet, In the middle beside the

performance stage , surround the sanctuary

15. Shape of building : round and square16. Overall heat transfer through building envelope:

Wall in core building is almost 0 W/m2; Roof 35 W/m2 (no heat gain to core building)

17. Lighting fixtures : HPM 400

18. Lighting load 220 lumens/m2

(gross floor area), designed by Philip and osram

19. Building air-conditioner system and equipmentFresh air exchange rate: __8_ m3 /hour/person

________ m3/hour/m2

________ m3/hour

Energy efficiency of active heat-pipe AC: ___1.3_____ kW/ton

20. Cooling Load _258_ W/m2 (air-conditioned area core building)

D. Operation Information

21. Occupancy rate (year 20081): Minimum _50_ % of total area

Per service: min 2/3 or + 70% of full capacity

22. Total number of occupants: weekday: + 5000 person and weekend: + 20000

23. Ownership of building (occupied by owner(s), renter(s), etc.): owners

24. Building operating schedule

- weekdays from 8.00 AM to 4.00 PM (office), 5.00 PM to 9.00 PM (rehearsal)

- Saturday from 5.00 AM to 7.00 AM and 5.00 PM to 7.00 PM

- Sunday from 7.00 AM to 9.00 AM and 5.00 PM to 7.00 PM

- Operating hours/ yr : + 1080 hours for core building 4200 hours for office (more

than 2000 hours)

25. Building indoor environment: Indoor air quality setting: temperature 25+/- 1 degree C

and relative humidity (RH) 55%+/-5%.



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Photos

Longitudinal view from north

Day lighting

Non air conditioning main entrance



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Non air conditioning corridor

Non air conditioning second floor corridor

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Id Holy Stadium

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