Innovative Wall Systems in Tropical Climate Indian Perspective · Innovative Wall Systems in...
Transcript of Innovative Wall Systems in Tropical Climate Indian Perspective · Innovative Wall Systems in...
Innovative Wall Systems in Tropical Climate – Indian Perspective
Mukesh KhareDepartment of Civil EngineeringIIT DelhiEmail: [email protected]
Presentation Overview 1. Indian Scenario
2. Need for wall panels
3. Probable materials
4. Current Studies on materials
5. Future Scope
Construction Industry in India Second largest industry of the country after agriculture
Contributing around 8% to the nation’s GDP.
Construction accounts for ~ 60–80 % of the of project cost of roads and housing and a significant portion in case of other infrastructure sectors
Construction materials (cement, steel, bricks and tiles, sands and aggregates, fixtures & fitting, paints and chemicals, glasses etc.) account for 2/3rd of construction cost.
Indian Construction materials: The requirements
Strength/
Durability
IS Codes
Cost
Should be within the Budget allocations
Environmental Concerns
No rules so far
Safety
Fire proof
Neutral to reactions
Development in construction industries in India in last decades
Development of institutions and implementation plans for safety and quality related issues.
Building Materials and Technology Promotion Council (BMTPC); Ministry of Housing and Urban Poverty Alleviation (MHUPA);
A national level comprehensive Green Rating Initiative (TERI Griha)
5
Current Indian Scenario: Emerging smart cities
Low cost resources: Possible alternatives for building materials
Rice and wheat straw husk
(14.5 million tons /year)
Sawmill waste
(Not available)
Groundnut shell
(11 million tons/year)
Coconut Shell
(Not available)
Jute residue
(20 million tons/year)
Banana Stalk
(Not available)
Success stories -examples
8
Indian Green Buildings Council (IGBC) Building - India’s First Platinum Rated Green Building at Hyderabad in 2003.
Ministry of Environment, Forest and Climate Change office complex in Delhi: Green Building.
The ONGC Building Delhi
Paharpur Business Centre in Delhi: providing eco-friendly space for commercial activity. Maintaining Indoor Air Quality confirming to ASHRAE standards.
The Eco-Housing Programme: to promote environment friendly and energy efficient buildings in Mumbai and Pune.
Environment-Friendly, Energy Efficient,Cost-Effective Composite Materials/Products for Low Cost Housing in India
BAMBOO MAT BOARD-Flooring, walling, structural membrane
BAMBOO MAT VENEER COMPOSITE – modular partitions,
PHOSPHOGYPSUM PANEL- Plaster boards, blocks, bricks, walling panels,
BAMBOO CORRUGATED ROOFING SHEET- Roofing sheet
BAGASSE COMPOSITE PANEL/BOARD - Building applications
JUTE POLYESTER COMPOSITE- Chip boards, roofing sheets, partition panels
COIR COMPOSITE BOARD- Fibre boards, surfacing and partitioning
BAMBOO-RICE HUSK COMPOSITE – Temporary shelters, warehouses, Insulation,
RED-MUD POLYMER JUTE COMPOSITE – Partitions,
RED-MUD-JUTE DOOR SHUTTER -Door shutters
CELLULAR LIGHT WEIGHT CONCRETE BLOCK - Concrete blocks
9
10
COTTON STALK COMPOSITE - Medium Density Fibre boards, partitions,
BLAST FURNACE SLAG COMPOSITE - Partitions and interior finishing on walls.
FIBRE REINFORCED BAMBOO COMPOSITE - Partitions, false ceilings and interior finishing on walls.
JUTE LAMINATED COMPOSITE - Flooring, walling and partitions.
CEMENT BONDED PARTICLE BOARD - Roofing, flooring, walling and door shutters.
BANANA COMPOSITE BOARD - Partition panels and panels for door shutters.
Source: http://www.bmtpc.org/topics.aspx?mid=55&Mid1=87
Benefits
• Strengthening the Research Collaborations
• Better options to dispose the waste
• Resources for obtaining Sustainability Goals
• Marketing and Manufacturing opportunities
Industry Government
InstitutesFarmers
The Challenges
Economically viable
Structurally acceptable
Environmentally agreeable
ECO-SEE Experience
WP 4.1: Development of an indoor air quality model (Lead: IITD; Partners: Fraunhofer, BRE and Aviero)
Scope: To evaluate the adsorption and desorption properties of bio-based building construction materials (wall panel, insulation and coating) for volatile organic matters
Evaluation of adsorption (ka) and desorption (kd) coefficients of VOCs for ECO-SEE materials
CFD simulation of adsorption and desorption properties of VOCs for ECO-SEE materials
Mukesh Khare, Sunil Gulia, Sumanth Chinthala (2014). Bio-based construction materials in Indoor Environment. Cooling India, pp.71-74, March., 2014.
Process
Experimental data (Measured; Dosing Concentration and
phase time; Material Surface area, ACH
etc.
Fitting of Langmuir model equation with exp. data using least
square method
Estimated ka, kd and M
Net rate of change of mass (dM/dt)
CFD Simulations
Tichenor B.A., Guo Z., Dunn J.E., et al. (1991) The interaction of vapor phase organic compounds with indoor sinks. Indoor Air, 23-35.
AssumptionsThe sorption process is assumed to be totally reversible
Surface sorption as the dominant mechanism considered
VOC diffusion inside the material was not considered
Single material and single pollutant were simulated at a time
Controlled MDF
16
Sr. No.
Parameters Toluene Limonene Dodecane Formaldehyde
1 Chamber Volume, (V0, m3) 0.002 0.002 0.002 0.0022 ACH, (N0 , 1/h) 6 6 6 6
3 Material Surface Area, (A0 , m2) 0.016 0.016 0.016 0.016
4 Dosing concentration, (C0, g/m3) 2169 2397 2754 779
5 Dosing time (T_stop, Hr.) 144 144 144 144
Parameters Toluene Limonene Dodecane Formaldehydeka 0.398 0.200 0.297 0.904
kd 1.297 0.382 0.200 0.673
Sunil Gulia, Sumanth Chinthala, Carla da Silva, Chetas Rana, Keith Mower, Andy Dengel, Mukesh Khare (Abstract accepted). Emission Characteristics of Eco-friendly Sustainable Building Construction Material-Part I, Indoor Air Conference, Ghent, Belgium, 3-8 July 2016 (Paper accepted)
17
Toluene
Formaldehyde Dodecane
Limonene
Simulated and Experimental Domains
18
Simulation parameters
Parameters Toluene Dodecane Limonene Units
Data set October 2014 October 2014 October 2014 -
Material Controlled MDF Controlled MDF Controlled MDF -
Chamber Volume 2 2 2 Litre
Size of Material 200 x 80 x 20 200 x 80 x 20 200 x 80 x 20 mm
Exposed surface area 0.016 0.016 0.016 m2
Pollutant Toluene Dodecane Limonene -
Dosing Concentration 2169 2754 2397 µg/m3
Inlet flow rate 200 200 200 ml/min
Inlet pressure 20000 20000 20000 Pa
Relative humidity 50 50 50 %
Temperature 23 23 23 0C
dM/dt 261.37 288.53 513.49 µg/m2/h
19
20
C_MDF-DodecaneAdsorption Phase
0
200
400
600
800
1000
1200
1400
1600
0 10 20 30 40 50 60 70 80
Do
dec
ane
Co
nce
ntr
atio
n (
µg
/m3)
Time (Hours)
Concentration Isopleths
• Sumanth Chinthala, Sunil Gulia, Sebastian, S., Carla da Silva, Chetas Rana, Keith Mower, Andy Dengel, Mukesh Khare (abstracted accepted). Eco-friendly sustainable building construction materials: Simulations of Adsorption and Desorption for Control MDF-Part-2, Indoor Air Conference, Ghent, Belgium, 3-8 July 2016 (Paper accepted).
21
C_MDF- Dodecane Desorption Phase
0
50
100
150
200
250
300
350
400
450
0 10 20 30 40 50 60
Do
dec
ane
Co
nce
ntr
atio
n (
µg
/m3)
Time (Hours)
Thanks