Welcome to Thermax LimitedSustainable Solutions in Energy and Environment

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Thermally Activated Technology For Improving

Energy Efficiency & Reducing Carbon Footprint in Buildings

CII-Green Building Congress 2014

By:

Manoj GewaliThermax Ltd.

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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