presents thermal energy storage & radiant hvac...
TRANSCRIPT
E C O - S T RU C T U R E S INTERNATIONAL
Presents
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Thermal Energy Storage & Radiant HVAC System
2019
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2015 GCC energy subsidy $160 bn/yr (Dhs 588 bn) or 10% of GDP.2016 ~70% of GCC power capacity in the GCC (149 GW) is for AC.2026 AC Will Need ~70 GW ($140 billion) of new capacity
→ $25-30bn/year of LNG.2050 Peak temperatures could rise by 4 deg C.2050 Heat waves could last 80 days / year. 118 d/yr by 2100.
→ Could cause population migration crisis.
2013 EU: Heating/cooling uses ~50% of EU’s energy consumption.2015 US: Residential/commercial buildings use ~33% of all energy
use and GHG emissions, and 50% of electricity consumption. 2016 A/C emits ~700 million metric tons of CO2 emissions annually.2017 Buildings use ~40% of global energy and emit ~33% of global
greenhouse gases. → (HVAC systems typically consume around 70% of a base building’s energy usage).
2050 A/C energy use up 4.5x over 2010.
The Impact of HVACSources: World Bank, IMF, PWC, MEES, EY, IEA, Apicorp, IRENA, EIA, etc.
The GCC
Globally
Business-As-Usual: Expensive & Unsustainable.
Solution: TermoDeck HVAC – Radiant Cooling / Thermal Energy Storage In Concrete
We spend >90% of our time indoors.
Well-sealed buildings are linked to sick building syndrome (WHO).
Air pollution is the fourth biggest risk factor for mortality globally (causing
respiratory and cardiovascular diseases, cancer, allergies and asthma).
Indoor air can far more polluted than outdoor air (2-100x).
EU: every extra 1 ug/m2 of PM2.5 pollution reduces GDP 0.8%
Aggregate worldwide cost of premature deaths due to air pollution > $5tn (2013)
Swedish Technology Proven in 430+ Projects Worldwide
Integrated Design: Thermal Energy Storage Within Concrete
Structure
Standard Products / Construction Methods
Cuts CapEx and OpEx
Low Energy → Impact Outdoor Pollution
▪ ~50% lower AC
▪ ~30% lower connected load
▪ ~30% lower energy consumption
Easy O&M
Sustainable: Low Embodied Energy / Net Zero / LEED
Cut Emissions / GHG
Future Proof
Healthy Indoor Environment → Impact Indoor Pollution3
TermoDeck Ventilated Concrete Slabs: Award-Winning Building Integrated Energy Storage, Cooling & Ventilation System
Project – Retrofit / Riyadh: Removed 24 TR. Installed 10 TR AC
20,000 m2 Retail (Oman): 510 TR (Conventional AC: 1,020 TR)
30,700 m2 Office (Jeddah): 750 TR (Conventional AC: 2,200 TR)
20,000 m2 Office (Jeddah): “more than 50% reduction of active energy needed to cool a building”
Select International Projects
46,500 m2 Government Office - Botswana
20,000 m2 Residential Towers - Sweden
6,000 m2 Institutional Project - Canada
24,000 m2 Hospital - Botswana
15,000 m2 University - England
6,000 m2 Educational Project - Canada
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UK: Total Energy Consumption Using Conventional HVAC Systems Consumed 2.5 - 3 Times More Energy Than a Comparable TermoDeck® HVAC Building
110,000 m2 Hotel/Commercial complex - Sweden
“[areas] function better than conventional HVAC”
“have less maintenance to perform”
“air quality is better / fresher”
“staff and students are generally more comfortable and have fewer complaints”
“In summer, I switch off the AC at 4am and
switch it back on at 3pm, and the house remains
very comfortable all day.” (July-2018)
1,250 m2 Villa (Riyadh): 15 TR (conventional AC: 40 TR)
1,450 m2 Office (Dubai): 40 TR (Conventional AC: 90 TR)
Sample Middle East Projects
20,000 m2 Office (Jeddah): “more than 50% reduction of active energy needed to cool a building”
20,000 m2 Retail (Oman): 510 TR (Conventional AC: 1,020 TR)
30,700 m2 Office (Jeddah): 750 TR (Conventional AC: 2,200 TR)
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40,000 m2 School (Dubai): Connected load cut from 7.4 to 4.9 MW. 37 m2/TR (conventional 16 m2/TR)
Hollowcore Slab
14°C
Soffit temp.19-20°C
20-21°C
Room temperature 23°C
End-caps
Metal or Concrete Frame: Flat Slab Design
Concrete Frame / (in-situ or precast) In-Situ Slab
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TermoDeck® Poses No Risk to the Concrete Structure:Swedish Concrete Association / Institution of Structural Engineers UK
Room temp. 22°CAir Supply to Room: 24°C
Soffit temp.23°C
Supply Air Temperature to TermoDeck Slab
35-49°C
Cooling & Heating process
Easy maintenance: normal O&M for roof HVAC equipment. Minimal TermoDeck-related O&M.
Can be designed to work w/FCUs.
Ventilated Concrete Slabs: Typical HVAC Configuration
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Conventional AC Adds: Height, Costs, Material, Time
TermoDeck Has No Unnecessary Conduits/
Mechanical Devices.
TermoDeck Cuts Costs:
Integrate structure w/HVAC:
→~50% less installed HVAC capacity→~30% less power
Easier / Faster to build / No wasted height
→Lower building height
→More floors
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Entire slab cooled from within: coolth
is absorbed and stored,
radiated to evenly cool and ventilate : occupants, comfortably and naturally,
wherever they are in the room.
Nighttime: slabs cool down efficiently
Daytime: slabs absorb/store energy efficiently cooling the space
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False ceiling/ducts (600mm)
46o C 46o C14o C
20o C
22o C
24o C25o C
21o C
mm
mm
mm
mm
mm
mm
50%
smaller
Chiller
Chiller
2X
Fresh Air(10-20%)
In-Room Recirculat
edAir (80-
90%)
Fresh Air(30-50%+)
No In-Room Recirculated
Air(mixing at
AHU)
Com
pari
son
Conventional AC vs TermoDeck Ventilated Concrete Slabs
Conventional AC dictates so much of the design of the structure and its
operations. There is a better way.
It is time to change!
TermoDeck starts design with the end-user in mind. Comfort, health, budget, convenience.
Benefit of Concrete / Heavyweight Buildings
Heating: Store surplus heat during daytime / warmer hours to compensate for heat losses during colder / night-time hours
UK
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Jeddah / Saudi Arabia
Cooling: Store surplus coolth during night-time / cooler hours to compensate for heat
gains during hotter /daytime hours
Client Testimonials
Innovate UK (10 Year Government) Study: ▪ “… [TermoDeck is] mercifully bullet-proof …▪ “… TermoDeck system has operated as designed with minimal maintenance…” ▪ “… {TermoDeck] appears to have a [actual energy use] value of about half of the average of the buildings…”
GEMS DAA/Dubai (65% of the area is TermoDeck and 35% conventional AC):▪ TermoDeck “... functions better than conventional HVAC [areas] and presents fewer challenges.”▪ “... We have less maintenance to perform in the TermoDeck areas of the school...”▪ “... Staff and students … more comfortable and have fewer complaints in the TermoDeck parts of the school...”▪ “... air quality is better and seems fresher...” and “... noticed lower amounts of humidity during Dubai summer months...”
University of East Anglia/UK:→ achieved the highest occupant comfort scores of any building tested in England – The Probe Report funded by UK Govt▪ “... lowest [energy performance] in the UK for office/education building...” ▪ “... remarkable customer satisfaction ... in summer with no mechanical cooling system...” ▪ “... fundamentally the system is great...”
Lulu Group International/Muscat:▪ “Due to smaller AC, we are saving approx. 35% on the electric charges and reduced maintenance.” ▪ “... TermoDeck is working excellent .. (and) … we can now confirm our full satisfaction with the system...”
Saudi Diyar/Jeddah: “… more than 50% reduction of active energy needed to cool a building …”
Eng. Ibrahim Aba Al-Khail/Riyadh: “... electricity bill … reduced by at least 60% compared w/conventional AC.”▪ During summer, switch off the AC at 4am and switch it back on at 3pm… the house remains very comfortable all day.”
GAC (Gulf Agency Company)/Dubai: “... hollowcore slabs inspected … have not found any signs … of dirt, molds, fungus, condensation or any deterioration of any kind..”10
Integrated Design: Cuts CapEx and OpEx
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TermoDeck: Superior Indoor Air Quality (IAQ) / Indoor Environmental Quality (IEQ)
→ No Possibility of Bacteriological Growth
Air Sampler
at Diffuser
Superior Occupant Comfort & Health
Swab test measured
microbiological activity on the slab surface →
“Not Detected”.
Air sampling measured
quality of the air exiting the
slab
Office built in 2000/2001 (at the time of the test, in operation for 16 years). Regular inspection of the hollowcore slabs showed them to be clean and thus not requiring any additional treatment. The air quality test measured the dust, mold and bacteria
present in the cores’ surfaces, and the air exiting the cores into the occupied spaces. Results were outstanding.
1. Healthier Radiant Cooling + Convection
2. Silent Operations / Stable Temperatures 24/7
3. Supply Air Temperature is Only a Few Degrees
Higher Than Room Temperature
4. Higher % of Fresh Air.
5. No Internal Air Recirculation.
6. No Bacteriological Growth
7. No Equipment / Maintenance internally.
8. Continues Cooling if Power Interrupted.
2019
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Hydronic & Conventional HVAC
Excessive layer of micro-dust and contaminants in conventional AC ducting and false ceiling.
Dirty and contaminated FCU condensate drain trays in conventional AC (and after cleaning and disinfection).
TermoDeck Ventilated Concrete Slabs: Simplicity By Design
All HVAC Equipment is outdoors.Only air supply ducts and slabs indoors.Single system provides heating, cooling and ventilation.
No equipment in the occupied spaces = → Comfort→ low-cost→ Simplified Maintenance→ Healthier Indoor Environment.
TermoDeck wins WGBC (World Green Building Council) MENA award for Indoor Air Quality (2018)
Extensive pipe/pump network → Risk of leaks, cold/hot spots, blockages.
Reduced thermal storage, with additional ventilation system.Heavy maintenance.
TermoDeck HVAC
Filtration and Sterilization of the Air Volume at AHU
→ With TermoDeck, entire air volume is returned to the AHU. → Sustainable design ensures significantly lower power consumption
compared to conventional.
→ Filtration (including HEPA - High Efficiency Particulate Air - filters), helps purify incoming air.
→ HEPA filters Designed to capture 99.97% of particles > 0.3 microns. → Enough to capture most pathogens.
→ Coronavirus ranges from 0.06 - 0.14 microns. Some virus will pass filters.
Additional protection: Add UV-C sterilizer (Germicidal Irradiation) module to AHU.→ Neutralize all viruses in the air-path. (UV-C wavelength damages the virus’
DNA/RNA, destroying its ability to replicate.)→ Additional UV-C modules can also be placed in the main supply ducts.
→ Ensures almost total sterilization of the entire air volume.
→ With TermoDeck sustainable HVAC, we reduce the overall air volume; increase the fresh air component, avoid in-room recirculation,
→ Filtration and sterilization help ensure a clean, healthy constant supply of treated (i.e. filtered, cooled or heated) air.
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Dr. Ghassan Al-NimryEco-Structures International
T: +971.50.450.5831
W: www.eco-structures.net16
Thank you