Design & Construction of Solar Passive Silkworm Rearing ......Silkworm rearing house: Bangalore Thermal comfort requirement: Chawki room: 25 to 28 deg C with 70-90% RH Rearing room:

11/27/2013

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Earth Science and Climate Change

Decentralized Electricity Solutions Sustainable Habitats

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Environment Education & Youth Services

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Modeling & Economic Analysis

Sustainable Habitats

Design & Construction of Solar Passive

Silkworm Rearing House for Sericulture

Farmers

Minni Sastry, Fellow, Centre for Research on

Sustainable Building Science, TERI - Bangalore






Water Resources








Silkworm rearing house: Bangalore

Thermal comfort requirement: Chawki room: 25 to

28 deg C with 70-90% RH

Rearing room: 23 to 25 deg C with 70-80% RH

Non uniform heating/cooling leads to loss in 50-

70% of yield

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External methods used to decrease the temperature

False ceiling with

thermocol False ceiling with

thermocol

False ceiling with

thermocol

False ceiling with wooden

logs Wet gunny cloth hanged in

corridor

Wet gunny cloth hanged in

door and windows

Wet gunny cloth hanged in

windows

Coconut leaves shading to

doors and windows

Wet sand bed with ragi

seeds sown near bottom

ventilators






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External methods used to decrease the temperature

Shade nets covered on roof

top

Coconut leaves and dry grass

cover on roof top

Coconut leaves covered on

roof top

Coconut leaves covered on

roof top

Thermocol covered on roof top

Coconut leaves hangings with

drip liners Coconut leaves covered on roof top

Dry grass covered on roof top

and wet gunny cloths covered to

windows

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Corridor around rearing house






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Solar passive silkworm rearing house for

enhanced productivity

Strategies for summer:

Roof pond with insulation ;Insulated wall and roof; Wall shading

Solar chimney on south wall with adjustable vents (to improve ACH in the rearing room)

Air Inlet from north wall covered with wet gunny bags for added humidity

Thermal comfort requirement:

Rearing room: 23 to 25 deg C with 70-80% RH

Non uniform heating/cooling leads to loss in

50-70% of yield



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Silkworm rearing being carried out in

the constructed solar passive house






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Constructed solar passive silk worm

rearing house

Building section for silkworm

rearing house

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Water Resources








Solar Passive Silkworm Rearing House

Roof Pond

Solar Chimney

Stack Ventilation

Trombe Wall

South Shade

Thermal comfort requirement

for silkworms:

Temperature: 23 – 28 deg C

RH: 70-90%






Water Resources








Winter Strategy

24 deg C

28 deg C

18 deg C

24 deg C

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Summer Strategy

26 deg C

34 deg C

25 deg C

23 deg C






Water Resources








Design & Construction of Solar Passive Silkworm Rearing ......Silkworm rearing house: Bangalore Thermal comfort requirement: Chawki room: 25 to 28 deg C with 70-90% RH Rearing room:

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