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Welcome to Thermax LimitedSustainable Solutions in Energy and Environment
Leaders in Energy conservation & Environment preservation
Thermally Activated Technology For Improving
Energy Efficiency & Reducing Carbon Footprint in Buildings
CII-Green Building Congress 2014
By:
Manoj GewaliThermax Ltd.
Leaders in Energy conservation & Environment preservation
Primary Energy Mix - India
Coal, Oil & Natural Gas together constitute 92% of Primary Energy Consumption
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Primary Energy Mix - India
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Primary Energy Consumption Sectorwise
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Power Sector - India
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NegaWatt Electricity Consumption
NegaWatt Negative MegaWatt due to reduction in Energy need
At the point of Consumption
T&D Losses 24%
At the point of Generation
1 kwh 1.3 kwh
Efficiency : 76%
4.2 kwh
Efficiency : 31%
1 Unit Saved at the point of Consumption • Saving 4.2 Units at the point of Generation
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Building Energy Consumption
Source : CII
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Challenges
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Challenges
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Environmental Impact – Electrical Chillers
Refrigerant Ozone Depletion Potential
Global Warming Potential
HCFC-22 0.05 1700
HCFC-123 0.02 120
HFC-134a 0 1300
ODP: amount of degradation to the ozone layer caused by a substance compared to CFC-11, which was given an ODP rating of 1.0.GWP: is a relative scale which compares the amount of heat trapped by a unit mass of greenhouse gas to that of Carbon Dioxide
Mainly chillers with HFC/HCFC refrigerants with ODP & GWPRefrigerant Phase Out: How refrigerants changed with time:
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Emerging Solutions – Thermally Activated Technologies
Global trends – District cooling/heating plants are integrating clean/sustainable energy solutions which combine thermally activated cooling/heating technologies:
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From Multi Energy to Multi Utility
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Biomass Based CHP System
SAVING 3200 Tons of Carbon Emissions Annually
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Air Conditioning System with Steam
SAVING 1495 Tons of Carbon Emissions Annually
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Solar Cooling Solutions
SAVING 576 Tons of Carbon Emissions Annually
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Air Conditioning System with Exhaust
SAVING 1250 Tons of Carbon Emissions Annually
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Carbon Footprint Reduction Potential
Considering 1000 TR chilling requirement at site
• 7 Mn TR of Total Cooling annually
• .7 kW electrical consumption/TR
• Hence total electricity = 4.9 Mn kW
•.76 kg CO2 emission per kWh
• Total CO2 emission for electrical chillers » 3,724 Tons Annually
• 7 Mn TR of Total Cooling annually
• .04 kW electrical consumption/TR
• Hence total electricity = .28 Mn kW
•.76 kg CO2 emission per kWh
• Total CO2 emission for absorption chillers » 213 Tons Annually
SCOPE FOR CO2 REDUCTION BY MORE THAN 90%
ElectricalChiller
Absorption Chiller
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Energy saving Potential
Electric Chillers
Capacity kW 100
COP (0.58 kW /TR) 6.1
Input – Power kW 16.4
Input – Thermal kW 73
Double Effect Vapour Absorption Chiller
Capacity kW 100
COP 1.5
Input – Thermal kW 67
30% Power production efficiency75% Transmission efficiency30% Power production efficiency75% Transmission efficiency
8.5% Savings in Thermal Input8.5% Savings in Thermal Input
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Energy saving Potential
Electric Chillers
Capacity kW 100
COP 6.1
Input – Power kW 16.4
Input – Thermal kW 73
Triple Effect Vapour Absorption Chiller
Capacity kW 100
COP 1.85
Input – Thermal kW 54
30% Power production efficiency75% Transmission efficiency30% Power production efficiency75% Transmission efficiency
25.8% Savings in Thermal Input25.8% Savings in Thermal Input
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Co-Calor (High temp. Hot water Applications)
§ Heat Source (30 - 60 C): Cooling tower waterProcess condensate / hot waterGeothermal water
§ Driving Heat Source: Dry Saturated Steam (1 – 10 bar.g) High temperature hot water (130 – 180 C) Exhaust Gas (275 – 600 C)Direct Fired (Gas/Oil/Propane/LPG)
§ Heating Capacity : 0.25 – 40 MW
§ Heating COP : 1.65 – 1.75 ( 40% Savings in Heat input )
§ Temperature Range : Hot Water : 65 – 95 C (•t 30 C max)
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High Efficiency Co-Calor
§ Vapor absorption Chiller-heaters cater to heating and cooling needs simultaneously
§ Capacity Range Cooling : 100 – 3500 TRHeating : 100 kW – 9 MW
§ Heat Source Dry Saturated Steam (3 – 10 bar.g) High temperature hot water (145 – 180 C)Direct Fuel Firing (Gas/Oil/LPG/Propane)Exhaust Gas (275 – 600 C)
§ Temperature RangeCooling : 0 – 30 C (•t 30 C max)Heating : 65 – 90 C (•t 5 – 25 C)
§ 23 % saving in overall heat input / 40% saving on heat input for heating
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Energy saving Potential
Electric Chillers
Capacity kW 100
COP 6.1
Input – Power kW 16.4
Input – Thermal kW 73
High Efficiency Chiller Heater
Capacity kW 100
Cooling COP 2.4
Input – Thermal kW 42
30% Power production efficiency75% Transmission efficiency30% Power production efficiency75% Transmission efficiency
42.8% Savings in Thermal Input42.8% Savings in Thermal Input Thank You