Bitopi misami leb 25 06 2014

We make innovations. We provide solutions

Concept for

LOW ENERGY BUILDINGLOW ENERGY BUILDING

In Exclusive JV with :-

-the ENERGETICS people


PLAN VIEW of SITE

Concept for ENERGY BUILDING, Bitopi Misami |

PLAN VIEW of SITE


First floor7.500 sq m

ground3 000 sq m

Gmezz floor7 500 sq m

Total

3.000 sq m 7.500 sq m

1st Mezz floor2 200 sq m

REQUIREMENTS :

2.200 sq m

• Ground floor : 3.000 sq. m ware house • Ground mezz floor : 7.500 sq m canteen finished goods • First floor : 7.500 sq m sewing area

First Mezz floor 2 200 sq m offices

CONCEPT

• First Mezz floor 2.200 sq m offices

CONCEPTsketches

Concept for ENERGY BUILDING, Bitapi Misami |


The site is of a linear nature oriented along the East-West

direction

CONCEPTdevelopment of built mass

Concept for ENERGY BUILDING,

ENERGY EFFICIENCY MEASURESWe make innovations. We provide solutions

• solar panels over southern façade• photovoltaic cells to generate energy• green roof and walls as heat buffers• geo-thermal cooling systems in

combination with an absorption chiller

• use of reflective glass• use of reflective glass• natural light through north face• creating a micro-climate balancing

water bodies, landscape and hard water bodies, landscape and hard cape

energy water material waste solar thermal

CONCEPTenergy efficiency measures

energymanagement

watermanagement

material wastemanagement

solar thermal & solar PV

energy efficiency measures


SUSTAINABILITY CONCEPT We make innovations. We provide solutions

CONCEPTenergy efficiency measuresenergy efficiency measures


WATER CYCLE We make innovations. We provide solutions



RENEWABLE ENERGY We make innovations. We provide solutions

Biomass heating &

Solar PV

hot water

Solar hot waterSolar hot water

Solar absorption cooling

Geo Thermal cooling


Earth tubes

energy efficiency measures


RENEWABLE ENERGY We make innovations. We provide solutions


Concept for ENERGY BUILDING, |

GEOTHERMAL COOLINGGCHP Systems use the constanttemperature of the earth as a heat


temperature of the earth as a heatsink/source instead of the outside air,allowing the systems to reach highefficiencies between 300% ‐ 600%.This translates to 3 kW to 6 kW ofThis translates to 3 kW to 6 kW ofenergy supplied to a facility for every1 kW of electricity consumed.GHP Systems use 40% ‐ 70% lessenergy than conventional HVACenergy than conventional HVACsystems


Concept for ENERGY BUILDING, Misami group |

Built on the principle of sustainable and


Built on the principle of sustainable and energy-efficient construction followed by the use of as much renewable energy as

possible to meet remaining energy req irements the ne 2 storiedrequirements, the new 2 storied

prefabricated steel structure building for Misami group the building stands out not just thanks to the extremely well-balanced

i b d f th t t hi h imain body of the structure, which is integrated into the surrounding landscape, but also as a result of a renewable energy

concept that combines geothermal and l th l ith h t lt i 'solar thermal energy with photovoltaic's. As a unique feature, an absorption

refrigerator is used to transform excess solar heat into cooling energy for the building’s temperature control system


Absorption Chiller.We make innovations. We provide solutions

Absorption Chiller.

Courtesy : www.ausSGIC.org

Solar Cooling We make innovations. We provide solutions

. Concept description


p p

Our concept suggestion is based on the introduction of radiant cooling system as a very comfortable and energy radiant cooling system as a very comfortable and energy efficient solution. This radiant cooling system will operate at supply water temperatures closer to the space pp y p ptemperature and thus would function in an energy efficient way. Furthermore this characteristic of the radiant cooling Furthermore, this characteristic of the radiant cooling systems to work with higher temperatures thanthe conventional HVAC systems, constitute radiant cooling y gideal to combine with renewable in this case the radiant cooling systems can be combined with earth energy to

tiliutilize green energy..The different systems that are suggested for this special and demanding project are illustrated and described in the


g p jnext slides

The under floor cooling systems serves for cooling

We make innovations. We provide solutions Under Floor Radiant Cooling

The under floor cooling systems serves for cooling output from the floor and also to compensate for any direct solar radiation from the open sides of the buildings when shading is nor desired orthe buildings, when shading is nor desired or unavailable. The high thermal transmittance of the floor covering (marble, tiles) accompanied with the hi h l i t th id f th fl blhigh solar gains at the sides of the floor, enables the system to absorb the high solar gains and create an optimal and equally distributed thermal environment covering base load, eliminating the risk of draft and temperature asymmetry.

The under floor cooling system is embedded in the screed, positioned with a special mesh g y , p pright on the top of the concrete slab or an insulation layer if this is installed. The system will absorb sensible cooling loads and compensate for direct solar radiation to the floor if it appears. More precisely about the solar radiation, zoning and loops positioning will be conducted based on expected solar radiation, allowing peripheral zoning and thus ensure optimized solar gains absorption system balancing. The installation of the pipe will be done with spiral pattern, so that balanced surface floor temperature can be achieved.


Sustainable, environmentally friendly, energy‐efficientWe make innovations. We provide solutions

The building will be heated and cooled using a hybrid system consisting of a geothermal heat pump (160 down hole heat exchangers each at a depth of 100 metres) and solar thermal energy system, the excess heat from which is transformed by an absorption refrigerator into cooling energy to cool theexcess heat from which is transformed by an absorption refrigerator into cooling energy to cool the offices and other areas of the factory in summer.The collector array on top of the flat roof of the building measures approximately 550 square meters and generates a maximum of 350 kW at flow temperatures of up to 95°C.g p pThe solar heat generated will be used primarily to heat DHW and secondarily for heating purposes. In summer and in transitional periods, when the heating can be switched off, the excess solar energy will be used for cooling by means of the absorption refrigerator.. The water will be cooled to 7°C and stored temporarily in a cold water reservoir with a capacity of 9000 liters. If a greater cooling capacity is required, the cooling energy will be generate by a hydraulically reversible geothermal heat pump. Th f i ti l t i l t d i h th t th f li t d f lThe refrigerating plant is regulated in such a way that the use of cooling energy generated from solar energy is prioritized at all times. Heat and cooling energy will be distributed around the building by means of a combined under floor system which supplies hot or cold water and fan convectors (350 fan coils approx) located inside the whole buildingfan coils approx) located inside the whole building .

In addition to the 160 vacuum tube collectors, around 800 square meters of photovoltaic panels with an output of 110 kW are also will be mounted on the building’s flat roof. These provide sufficient power to cover the building’s electrical base load around 20%.


Absorption ChillerWe make innovations. We provide solutions

Absorption Chiller.

What it is going to do in the system ?• Cover full cooling load of the sewing area inCover full cooling load of the sewing area in the summer.

h ll ?How much energy it will save ?• 20%0%

Solar Vacuum TubesWe make innovations. We provide solutions

Solar Vacuum Tubes

What it is going to do in the system ?Primary produce D.H.W for the taps ,secondaryPrimary produce D.H.W for the taps ,secondary hot water to support the under floor system during winterduring winter .

During the summer time support the absorption chiller

How much energy it will save ?How much energy it will save ?20%

100 KWp PhotovoltaicWe make innovations. We provide solutions

100 KWp Photovoltaic

What it is going to do in the system ?Produce electricity for the basic loads of theProduce electricity for the basic loads of the factory.

h ll ?How much energy it will save ?If we assume that the total demand is e assu e t at t e tota de a d saround 1MW the energy save is 10%

Energy Cost Calculation.We make innovations. We provide solutions

gy

Elec PDB CNG NG DieselRate /Energy 7.32 15 3 20A il bili 40% 20% 30% 10%Availability 40% 20% 30% 10%

2.928 3 0.9 2 8.828

Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8

avg of 8 yearsg y

Cost of El Unit TAKA 10.00 10.00 10.00 13.00 14.30 15.73 17.30 19.03 109.37 13.67

Energy Consumption per yearEnergy Consumption per year.

Area 18000 sq. meters in total

Relative & Cooling Power in watt 100 sq metersRelative & Cooling Power in watt 100 sq. meters

Total Installed Power required for the above 18000 sq. meters in watt 1800000 Watts 1800 KW

Assuming 15 hours as working hours per day for 286 days / year 15 hours/ dayAssuming 15 hours as working hours per day for 286 days / year 15 hours/ day

Total Energy Consumption per year 7722000 KWH

Savings & ROI@ Tk 10 / kwh

MISAMI GROUP BUILDING -15 hrs Factory running / 286 days per year

Air Conditioning surface 18000m2 in total

Relative & required cooling Power 100 w/m2 q gEnergy Consumption /Year 77,22,000 kWh

Aircondition Geothermal Heat Pump +absorption chiller 20%COP 2 COP 5.5

Power Consumption 38 61 000 kWh Power Consumption 14 04 000 kWhPower Consumption 38,61,000 kWh Power Consumption 14,04,000 kWh

El. Power Price / KWh ( with Fixed Ch and taxes 10.00 TAKA El. Power Price / KWh 10.00 TAKA

El. Power Cost /year 386,10,000 TAKA El. Power Cost /year 140,40,000 TAKA

Total Cost per year 386,10,000 TAKA Total Cost per year 140,40,000 TAKA

245 70 000

1 euro = 105

Saving for Cooling with the use of Geothermal pump per year 245,70,000 TAKA

63.64 %

Bangladeshi TAKA

BUDGETARY for 10 Taka /Unit Total BDT TAKA SAVINGS years for returnall the measures 18000 sqmtr Qty Unit Euro Euro

1000 KW GHX Pump 2 60000 120000300 KW Ab ti hill 1 140000 140000300 KW Absorption chiller 1 140000 140000

10000 sqm Radiant Cooling 10000 55 550000vacum solar tubes 160 400 64000

100 kwp photovoltaics 1 140000 140000350 fan coils 350 350 122500

Controls 350 300 105000Geo Exchanger 160 475 76000

Drilling in ft 50000 15 7500002067500 217087500 245,70,000 8.84

Savings & ROI @ Tk 13.67

at wt avg for 8 years ‐ 13.67 taka / kwh costMISAMI GROUP BUILDING -15 hrs Factory running / 286 days per yearAir Conditioning surface 18000 m2 in total

Relative & required cooling Power 100 w/m2 g

Energy Consumption /Year 77,22,000 kWhAircondition Geothermal Heat Pump +absorption chiller 20%

COP 2 COP 5.5

Power Consumption 38,61,000 kWh Power Consumption 14,04,000 kWh

El. Power Price / KWh ( with Fixed Ch and taxes 13.67 TAKA El. Power Price / KWh 13.67 TAKA

El. Power Cost /year 527,79,870 TAKA El. Power Cost /year 191,92,680 TAKA

Total Cost per year 527,79,870 TAKA Total Cost per year 191,92,680 TAKA

Saving for Cooling with the use of Geothermal pump per year 335,87,190 TAKA

63.64 %

1 euro = 105 Bangladeshi TAKA

BUDGETARY for 13.67 Taka /Unit Total BDT TAKA SAVINGS years for returnall the measures 18000 sqmtr Qty Unit Euro Euro

1000 KW GHX Pump 2 60000 120000300 KW Absorption chiller 1 140000 140000

10000 sqm Radiant Cooling 10000 55 550000vacum solar tubes 160 400 64000

100 kwp photovoltaics 1 140000 140000350 fan coils 350 350 122500

C t l 350 300 105000Controls 350 300 105000Geo Exchanger 160 475 76000

Drilling in ft 50000 15 7500002067500 217087500 335,87,190 6.46

Warranty on GeothermalWarranty on Geothermal.

• GHX pumps have warrantees for 2‐5 years based on the manufacturer.

• We proposed with European makes which gives 5 years.• The maintenance cost for the system.Y 1‐ at our costY2 – at our costY3 – Y6 3% pa to client acctY7 ‐ Y8 5% pa to client acctY7 Y8 5% pa to client acctY9‐ Y10 6% pa to client acct

ROI Calculation.• Geothermal is supply so should be calculated

i t l f C li l d lagainst supply of Cooling load only.• Which means the AIRCON system of the area

is to be compared with Geothermal Solutionsis to be compared with Geothermal Solutions.• Cost to be calculated and compared in terms

of the High side only.of the High side only.• Low Side is almost the same.• Solar Tubes and PV to be measured against Solar Tubes and PV to be measured against

the DHW conventional system separately.





Core TeamWe make innovations. We provide solutions


Thank YouThank You.

In Exclusive JV with :-


Engineering

Bitopi misami leb 25 06 2014