rice husk cogen pdd anant joshi

7/31/2019 Rice Husk Cogen PDD Anant Joshi

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A

NANT

JOSHI

2012

R

iceHuskBased

Coge

neration

Plant

Monday, March 19, 2012

EXECUTIVE SUMMARYIn the process of setting up a rice mill, it is proposed to install a new rice

husk based cogeneration unit consisting of a 12 TPH boiler and a 1.2 MW

turbo-alternator, to cater to the demand of the rice plant.

The rice milling units use grid electricity as the main source of energy.

The purpose of the project activity is to have combined heat and power

(CHP) (cogeneration) facility to meet the energy requirements and

improve the overall energy efficiency of the said rice mill

The proposed cogeneration unit will meet all the energy demand

(Thermal as well as Electrical) of rice mill by using rice husk (otherwise

considered a waste in most cases)

However the plant is using alternative fuel but CDM is not applicable

because of lack of financial additionally (Project IRR is ~50% without)

However according different barriers in due course CDM may be applied

by proving financial additionally.

RICE MILL

[Type the company address]

[Type the phone number]

[Type the fax number]


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Table of Contents

SECTION# A General Description of Project ____________________________________ - 1 -

A.1 Title of Project ______________________________________________________ - 1 -

A.2 Description of the project _____________________________________________ - 1 -

A.2.1 Purpose of Project________________________________________________ - 1 -

A.2.2 Pre-Project Scenario ______________________________________________ - 1 -

A.2.3 Post-Project Scenario _____________________________________________ - 1 -

A.2.4 Availability of rice husk ____________________________________________ - 2 -

A.2.5 Project activitys contribution to sustainable development _______________ - 2 -

A.3 Project participants __________________________________________________ - 3 -

A.4 Technical description of the project _____________________________________ - 3 -

A.4.1 Location of the project ____________________________________________ - 3 -

A.4.2 Type, category/ (ies) and technology/measure of the project______________ - 3 -

A.4.3 Estimated amount of emission reductions over the chosen crediting period __ - 5 -

SECTION# B Application of a baseline and monitoring methodology ________________ - 6 -

B.1 Title and reference of the approved baseline and monitoring methodology applied to

the project _______________________________________________________________ - 6 -

B.2 Justification of the choice of the project category: __________________________ - 6 -

B.3 Description of the project boundary _____________________________________ - 7 -

B.4 Description of baseline and its development: ______________________________ - 7 -

B.5 Description of how the anthropogenic emissions of GHG by sources are reduced below

those that would have occurred in the absence of the registered CDM project _________ - 8 -

B.6 Emission reductions _________________________________________________ - 10 -

B.6.1 Explanation of methodological choices ______________________________ - 10 -

B.6.2 Ex-ante calculation of emission reductions: ___________________________ - 10 -

B.6.3 Summary of the ex-ante estimation of emission reductions ______________ - 10 -

B.7 Application of a monitoring methodology and description of the monitoring plan: - 11 -

B.7.1 Description of the monitoring plan: _________________________________ - 11 -

B.8 Date of completion of the application of the baseline and monitoring methodology

and the name of the responsible person(s)/entity(ies) ___________________________ - 13 -


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SECTION# C Duration of the project activity / crediting period ____________________ - 14 -

C.1 Duration of the project activity ________________________________________ - 14 -

C.1.1 Starting date of the project activity _________________________________ - 14 -

C.1.2 Expected operational lifetime of the project activity ____________________ - 14 -

C.2 Choice of the crediting period and related information _____________________ - 14 -

C.2.1 Renewable crediting period _______________________________________ - 14 -

C.2.2 Fixed crediting period ____________________________________________ - 14 -

SECTION# D Environmental impacts _________________________________________ - 14 -

D.1 If required by the host Party, documentation on the analysis of the environmental

impacts of the project activity ______________________________________________ - 14 -

D.2 If environmental impacts are considered significant by the project participants or the

host Party, please provide conclusions and all references to support documentation of an

environmental impact assessment undertaken in accordance with the procedures as required

by the host Party _________________________________________________________ - 16 -

SECTION# E Stakeholders comments________________________________________ - 16 -

E.1 Brief description how comments by local stakeholders have been invited and

compiled: ______________________________________________________________ - 16 -

E.2 Summary of the comments received ____________________________________ - 17 -

E.3 Report on how due account was taken of any comments received: ___________ - 17 -

SECTION# F Annexure ______________________________________________________ 18


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PROJECT DESIGN DOCUMENT

Rice Husk Based Cogeneration plant

SECTION# A General Description of Project

A.1 Title of ProjectRice husk based cogeneration unit at a rice mill.

A.2 Description of the projectA.2.1 Purpose of Project

Rice is the staple food of majority of Indians and specifically in eastern Indian. Rice mills are the

lifeline for the economic development of rural India. The rice mills are generally located in the

rural areas and near to paddy growing area The cost of energy as a percentage of paddy cost

varies anywhere between 1%-1.5%. The rice milling units use grid electricity as the main source

of energy. The purpose of the project activity is to have combined heat and power (CHP)

(cogeneration) facility to meet the energy requirements and improve the overall energy

efficiency of the said rice mill

A.2.2 Pre-Project ScenarioThe Paddy milling consumes significant quantities of fuels and electricity. Electricity is the mainenergy source for these rice mills and is imported from the state electricity board grids and

process heating requirement is met by burning rice husk. These rice mills use old and locally

available technologies and are also completely dependent on locally available technical

personnel.

A.2.3 Post-Project ScenarioA co-generation plant utilizing rice husk as fuel in the boiler, provides both electrical and

thermal energy to meet the total energy requirement of both the units. The project activity,

which is a biomass (carbon neutral fuel) based cogeneration plant, generates electricity in

addition to steam to meet captive electricity requirement of Rice Mill thereby displacing an

equivalent amount of electricity the plant would have drawn from the state power grid and

thus reducing the greenhouse gas (GHG) emissions


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Table 1 Specifications

Equipment No.Steam pressure,

,kg/cm2

Steam

Temp.

Generation

Turbo-generator 1 40 400

1.2 MW power at 415

V,

Boiler (Fuel Rice

Husk)1 40 400 12 TPH Steam

A.2.4 Availability of rice huskRisk husk is a byproduct of the rice mill and is locally available within the plant, in sufficient

quantities to meet the entire power requirement. (See Annexure 1)

Total energy available of the mill = (1.2MW Electrical + 4.8 MW Thermal) = 6 MW.

Husk required = 3200kg/hr

Husk required = 3200*24*350/1000

= 26880 ton/annum

A.2.5 Project activitys contribution to sustainable developmentEnvironmental well-being:

The project activity contributes to the environmental wellbeing by reducing energy

consumption, which leads to reduction in greenhouse gases due to present carbon intensive

grid mix

Economic well-being:

The project activity leads to the economic wellbeing of the region by creating opportunities for

rural people to set up cottage industries due to reduction in demand of power in the region by

the energy efficiency activity. The project may also generate additional direct and indirectemployment during and after implementation.

Socio-economic well-being:

The project activity reduces the paddy processing cost and reduces the burden for paying high

cost for the same as energy is one of the main cost driver in rice milling. The project activity also


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contributes to the reduction in fluctuation of power in project area where the demand of

power is increasing.

Technological well-being:

The project activity contributes to the increased use of energy efficient technologies and assists

in reducing technological barriers.

A.3 Project participants

NA

A.4 Technical description of the projectA.4.1 Location of the project

NA

A.4.2 Type, category/ (ies) and technology/measure of the projectMain Category:

Type I - Renewable energy projects

Sub Category: C Thermal energy for the user with or without

electricity

As defined under Appendix B of the simplified modalities and procedures for small-scale CDM

project activities, this category includes Biomass-based co-generating systems that produceheat and electricity

For co-generation systems to qualify under this category, the thermal energy production

capacity shall not exceed 45 MWthermal [rating for the primary boiler shall not exceed 45

MWthermal]. This project activity clearly qualifies in the above category since the net thermal

energy output from the project activity is approx. 9.5 MW thermal (< 45 MW thermal).as calculated

below:

Boiler capacity: 12 TPH Steam at 40 kg/cm2

4000C

Enthalpy of Steam: 3213 KJ/Kg

Enthalpy of Feed Water: 440 KJ/Kg

(105OC)

Boiler Rating : 12 x (3213-440)*1000/ 3600KW

= 9.243 MWThermal


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Technology employed for the project activity

The proposed plant will have one condensing cum extraction turbine along with a 12 TPH high

pressure boiler with steam parameters of 40KG/CM2

atm. and 400oC. The proposed boiler is of

modern design with membrane furnace walls and atmospheric fluidized bed combustion

technology, suitable for outdoor installation equipped with electrostatic precipitator for dust

collection.

For generating maximum of 100 % steaming capacity of the boiler at rated parameters, about

26880 ton/annum of Rice Husk is required.

No technology transfer to the host country is involved on account of the project activity as the

Technology is available within the country from reputed manufacturers.

Ultimate analysis of rice husk used as fuel:

Parameter %

Carbon 37.50

Sulphur 0.10

Nitrogen 0.98

Hydrogen 3.00

Oxygen 22.32

Moisture 16.60

Total Ash 19.40

GCV (Kcal/Kg) 3,100

The specification for the systems in the project activity is as follows:

A. BOILER:

Type CIRCULATED

FUEL RICE HUSK

STEAM OUTPUT 12 TPH

PRESSURE 40 Kg/cm2

TEMP. 400OC

WATER INLET TEMP. 105

BOILER EFFICIENCY 80 %

FLUE GAS TEMP 1500C


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B.TURBO GENERATER SET:

TYPE EXTRACTION CONDENSING UNIT

POWER OUTPUT 1.2 MW

INLET STEAM PRESSURE 40 kg/cm2

INLET STEAM TEMP 4000

CSTEAM FLOW 12 TPH

EXTRACTION STEAM PRESSURE 4 kg/cm2

EXTRACTION STEAM FLOW 7 9.5 TPH (*8 TPH)

Steam flow for condensing 2.5 5 TPH (*4 TPH)

A.4.3 Estimated amount of emission reductions over the chosen creditingperiod

Electric Power Requirement (Maximum. demand)

1 MW

Power Generation from the Cogeneration Plant (Project Activity)

Rated Capacity :1.2 MW

Captive consumption @15% :180 kW

Power Available :1.02 MW

Electric Power generated per annum in the Project Activity:

(Considering 24 hours per day; 350 Days per Annum operation requirement. Electric Powergenerated per Annum in the Project Activity:(15 days are for maintenance activity)

= 1 x 1 x 24 x 350

= 8400 MWh

Estimated amount of emission reductions over the chosen crediting

period of 10 years

(See Annex 2)

Year Power Generated, MWH Annual Estimated

Emission

2012-13 8400 6216

2013-14 8400 6216

2014-15 8400 6216

2015-16 8400 6216

2016-17 8400 6216


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2017-18 8400 6216

2018-19 8400 6216

2019-20 8400 6216

2020-21 8400 6216

2021-22 8400 6216

84000 62160

10

annual Average Emission Reduction over then

crediting

period (tonnes ofCO2e)

6216

[Considering Weighted Average Emission = 0.74 tCO2e/MWH as worked out by the Central

Electricity Authority (Ref.: CEA CO2 Baseline Database Version 3.0 Baseline Methodology

ACM0002 / Ver 07)]

SECTION# B Application of a baseline and monitoring methodology

B.1 Title and reference of the approved baseline and monitoringmethodology applied to the project

Main Category:

Type I - Renewable energy power project

Sub Category: C Thermal energy for the user with or without

electricityAs defined under Appendix B of the simplified modalities and procedures for small-scale CDM

project activities, this category includes Biomass-based co-generating systems that produce

heat and electricity The reference has been taken from the recent list of the small-scale CDM

project activity categories contained in Appendix B of the simplified M&P for small-scale CDM

project activities. (Approved Small Scale Methodology: AMS-IC/ Version 13; Sectoral Scope: 01,

EB 38).

B.2 Justification of the choice of the project category:Document Appendix B of the simplified M&P for small-scale CDM project activities providesindicative simplified baseline and monitoring methodologies for selected small-scale CDM

project activity categories. As per this document, the project activity proposed falls under the

Category C Thermal energy for the user with or without electricity. It has been

demonstrated earlier that the project meets the applicability conditions.

In the pre-project scenario, required power is drawn from the state Grid.


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In the post-project scenario, both the power and steam requirement for the plant are met by

the co-generation plant comprising of rice husk fired boiler and turbo-generator, thereby

displacing the electric power drawn from the state grid.

B.3 Description of the project boundaryBaseline for projects under type I.C. has been detailed under paragraphs 7(e), 9 & 14 of the

above-mentioned document. For this project activity, paragraph 9 is applicable, which states:

Paragraph (9): Baseline emissions for electricity imported from the grid shall be calculated as

the amount of electricity produced with the renewable energy technology (GWh) multiplied by

the CO2 emission factor of that grid. The emission factor for grid electricity shall be calculated

as per the procedures detailed in AMS I.D.

Paragraph (14): For case 7(e), baseline emissions from the production of electricity shall be

calculated as per paragraph 11. Emission reductions from heat generation are not eligible.

For the project activity proposed, the baseline is the historic electricity consumptions in both

the units I & II (3 year data considered) converted to equivalent CO2 emission by multiplying

with emission coefficient (measured in kg CO2e/kWh) for the Northern Power Supply Grid (as

calculated by the Central Electricity Authority, Government of India, in the CO2 baseline

database, version 3.0; 15.12.2007).

The CEA has calculated the weighted average emission rate (tCO2e/MWh) (including imports)

for the Grid for the years 2012-13 to 2021-22 as given in the following table. The weighted

emission rate for Grid for the year 2012-13 is 0.74 tCO2e/MWh. The emission rate of 0.74tCO2e/MWh has, therefore, been adopted, for calculating the GHG emission reduction due to

the project activity

B.4 Description of baseline and its development:As mentioned under Type I.C. of Annex-B of the simplified modalities and procedures for small

scale CDM project activities, project boundary encompasses the physical and geographical site

of the renewable energy generation.

For the proposed project activity the project boundary is from the point of fuel storage to the

point of electricity supply to the rice mill, where the project proponent has a full control. Thus,

the project boundary covers fuel storage, boiler, steam turbine generator and all other

accessory equipments. The project boundary is illustrated in the following diagram


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B.5 Description of how the anthropogenic emissions of GHG bysources are reduced below those that would have occurred in the absence

of the registered CDM project

The project activity shall be displacing grid based power with carbon neutral fuel (Rice Husk) for

power generation. Thus the GHG emissions that would have occurred due to the combustion of

fossil fuel (Coal, Gas) in the grid based power plants would be avoided.

The alternatives for the project activity applicable with current laws and regulations are,

1. Purchasing the electricity from the state grid: Purchasing electricity from grid is an

alternative, but in current scenario it is not a feasible option as state grid is severely short of

power supply


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2. Captive Co-generation unit using coal as fuel: Coal is the primary fuel for power generation.

Coal is also an economical option for power generation as it does not face supply barriers. Price

fluctuations of fuel are not high which makes it a less risky fuel option.

3. Captive Co-generation unit using biomass as primary fuel i.e. project activity : Risk husk is a

byproduct of the rice mill and is locally available within the plant, in sufficient quantities to

meet the entire power requirement.

However, there are barriers prohibiting implementation of the project activity.

a. Investment barrier:

The main investment barriers for the project activity are discussed below:

1. In an event of any technical failures or delay in the project activity there is a grave risk of

interests building up and threatening the financial capacity rice mill.

2. After the success of this project activity it is natural that there will be similar projects which

will push the biomass prices upwards. Therefore escalation of biomass prices due to increase in

demand for this fuel could hamper the financial prospects of the project activity. Conceiving

this project without CDM benefits would have been difficult and potential availability of these

benefits for the project was a major factor for deciding to go ahead with this project activity.

The CDM fund will help the project proponent to run the cogeneration plant smoothly in-spite

of rising biomass prices. CDM funding to project participants would also encourage other

industries to follow suit and thereby contribute towards GHG emission reduction.

b. Other Barriers :

Energy is not a core business of rice mill. They are mainly manufacturers of rice. The rice husk

based cogeneration project activity is a steep diversification from the core business fields to

power sector economics, where the project proponent has to meet challenges of techno-

commercial problems associated with the project activity. The possibility of financial assistance

available through carbon credits.

There exist also fuel supply barriers, as the Biomass, though abundant in supply, still lacks

proper logistics network for collection and delivery. This is a fuel availability risk, and to ensurecontinuous & economical fuel supply, project participants will have to invest in developing a

viable fuel supply mechanism.

The barriers discussed above are sufficient to hinder growth of the cogeneration plants in

sector. While the country has a clean energy strategy, the reality is that coal will continue to

dominate in the near term and the rice industry will burn coal in inefficient boilers unless


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financial incentives, such as carbon financing, exist. This project activity is a renewable energy

projects with net zero CO2 emission due to the carbon sequestration. Paddy re-grows at the

same rate as it is being harvested, and acts as a sink for atmospheric carbon dioxide and the net

flux of CO2 to the atmosphere is zero.

The project activity will save coal (which would have been used for coal based power

generation). The estimated emission reduction from the project activity is 6216 Tco2/annum. In

view of the above mentioned prohibitive barriers and GHG emission reductions, it is

understood that the project activity is additional.

B.6 Emission reductionsB.6.1 Explanation of methodological choices

Monitoring Methodology for the category I.C. Thermal energy for the user with or without

electricity. (Approved Small Scale Methodology: AMS-IC/ Version 13; Sectoral Scope: 01, EB38 ).

Monitoring methodology / guideline mentioned in the Appendix B of the simplified modalities

and procedures for small scale CDM project activities in the project category Type I.C . is

considered as basis for monitoring methodology for the project activity.

The paragraph 18 (b) of the document states that monitoring shall consist of Metering the

thermal and electrical energy generated for co-generation projects.

Since the emission reduction quantity totally depends on the units of energy in kWh displaced

from the grid and the baseline emission of the state grid, the monitoring of units generated in

the co-generation plant displacing the power drawn from the state grid before the projectactivity, shall be carried out. Further, the methodology prescribes monitoring of fuel input for

projects where only biomass or biomass and fossil fuel are used. In addition, specific fuel

consumption to be used should be specified ex ante.

Thus the monitoring methodology under Category I.C of the Appendix B of the simplified M&P

for small-scale CDM project activities of the UNFCCC CDM website is aptly applicable to the

project activity. The net CERs shall correspond to the units of power generated by the biomass

based co-generation plant

B.6.2 Ex-ante calculation of emission reductions:Baseline = Annual MWh generated x 0.74 tCO2e/MWh Emissions by the project activity (tCO2e)

B.6.3 Summary of the ex-ante estimation of emission reductionsFollowing formula is used for determining the emission reductions due to the project activity.


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Emission Reduction = Baseline emissions - Project Emissions

due to project activity

= Baseline emissions - 0

= Baseline emissions

Year Power Generated, MWH Annual Estimated

Emission

2012-13 8400 6216

2013-14 8400 6216

2014-15 8400 6216

2015-16 8400 6216

2016-17 8400 6216

2017-18 8400 6216

2018-19 8400 6216

2019-20 8400 6216

2020-21 8400 6216

2021-22 8400 6216

84000 62160

10

annual Average Emission Reduction over then

crediting

eriod tonnes ofCO e

6216

B.7 Application of a monitoring methodology and description of themonitoring plan:

B.7.1 Description of the monitoring plan:The project revenue is based on the units generated in the project activity as measured by

power meters at the cogeneration plant. The project activity shall have two separate meters

one for measuring the gross power generated and the other for measuring the auxiliary power

consumed. The monitoring and verification system would mainly comprise of these meters to

establish the quantum of displacement of the state grid power and consequent reduction of

GHG emissions. The rice husk quantity consumed in the cogeneration plant shall also be

measured.

GHG Emission Sources

Direct On-Site Emissions

Direct on-site emissions after implementation of the project arise from the burning of rice husk

in the boiler. These emissions mainly include CO2. However, the CO2 released is sequestered by


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Operational Parameters of the power generating UnitTotal Power Generated

The total power generated by the power project will be measured in the plant premises to the

best accuracy and will be monitored and recorded on a continuous basis by electronic power

and energy meter. The integrated readings every 8 hours shall be recorded manually in the plant log book.

Power consumed by the plant auxiliaries

The power consumed by plant auxiliaries will be recorded in the plant premises to the best

accuracy and will be monitored and recorded on a continuous basis by electronic power and

energy meter. The integrated readings every 8 hours shall be recorded manually in the plant log

book. The total quantum of power consumed by the auxiliaries would affect the total power to

be supplied to the manufacturing facility and displaced from the grid and therefore the amount

of GHG reductions. Therefore any increase in the consumption pattern of the auxiliary system

would be attended to on priority.

All measurement devices shall be of reputed make with standard accuracy and will be procured

from reputed vendors. All instruments will be calibrated at regular intervals. All instruments

shall carry tag plates, which indicate the date of last calibration and the date of next calibration.

The parameter will substantiate the smooth operations of the power plant. During verification

the total power generated would be verified as compared to the power exported to the

manufacturing facility.

Power supplied to the manufacturing facility

It will be calculated by deduction of auxiliary consumption from the total electric powergenerated.

Verification

The performance of rice husk based cogeneration project leads to GHG emission reductions.

The longer the power plant runs and supplies electricity to the manufacturing facility, the more

will be GHG emission reductions. The major verifications to be carried out are as under:

Verification of various measurements and monitoring methods

Verification of instrument calibration methods

Verification of measurement accuracy

B.8 Date of completion of the application of the baseline andmonitoring methodology and the name of the responsible

person(s)/entity(ies)

NA


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SECTION# C Duration of the project activity / crediting period

NA

C.1 Duration of the project activityC.1.1 Starting date of the project activity

NA

C.1.2 Expected operational lifetime of the project activity25 YR

C.2 Choice of the crediting period and related informationFixed Crediting Period of 10 years.

C.2.1 Renewable crediting periodNA

Starting date of the first crediting period

Length of the first crediting period

C.2.2 Fixed crediting periodStarting date

Length

10 Years

SECTION# D Environmental impacts

D.1 If required by the host Party, documentation on the analysis of theenvironmental impacts of the project activity

The environmental aspects of the project activity and the measures taken for the mitigation of

theimpacts are described in the following.

Gaseous emissions: (Particulate matter, SO2 and NOX)The pollutants discharged from the proposed Cogeneration power plant are, Suspended

particulate matter, Nitrogen oxide and Sulphur di-oxide in flue gas.

Dry fly ash

The ash will be collected manually by using Trolleys. The dry fly ash from the economizer, air

pre-heater and ESP hoppers will be collected by the ash handling system and will be used for


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land filling in the nearby lowland areas. Provision will be made in the system for water spray to

eliminate dust nuisance in the plant.

Wastewater

Effluent from water treatment plant: Hydrochloric acid and sodium hydroxide will be used as

regenerants in the proposed water treatment plant. The acid and alkali effluent generated

during the regeneration process of the ion-exchangers would be drained into an underground

neutralizing pit. Generally these effluents are self-neutralizing. The effluent will then be

pumped to the mills effluent treatment plant. The neutralizing pit will be sized with sufficient

capacity. The rejects from water treatment plant will have high TDS which could be diluted and

used for cleaning purposes in the project activity. This water could also be used for plantation.

Chlorine in cooling water: In the condenser cooling water, residual chlorine of about 0.2 ppm is

maintained at the condenser outlet. This chlorine dosing is done mainly to prevent biological

growth in the cooling tower system. This value would not result in any chemical pollution of

water and also meets the national standards for the liquid effluent.

Thermal pollution: A close circuit cooling water system with cooling towers has been proposed.

This eliminates the letting out of high temperature water into the canals and prevents thermal

pollution. Blow down from the cooling tower will be conveyed to the plant drainage system.

Noise pollution: The rotating equipment in the Power plant has been designed to operate with

a total noise level of not exceeding 90 db (A) as per the requirement of Occupational Safety and

Health Administration (OSHA) Standards. The rotating equipments are provided with silencers

wherever required to meet the noise pollution.

Monitoring

The characteristics of the effluents from the proposed plant will be monitored and maintained

so as to meet the requirements of State Pollution Control Board and the minimum national

standards for effluent from thermal power plants. Air quality monitoring will also be

undertaken to ensure that the dust pollution level is within the specified limits.

Air Quality Monitoring Programme: The purpose of air quality monitoring is the acquisition of

data for comparison against the prescribed minimum standards and thereby assures that the

air quality is maintained within the prescribed levels. The main parameter to be monitored will

be Suspended Particulate Matter.


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D.2 If environmental impacts are considered significant by the projectparticipants or the host Party, please provide conclusions and all

references to support documentation of an environmental impact

assessment undertaken in accordance with the procedures as required

by the host PartyNA

SECTION# E Stakeholders comments

E.1 Brief description how comments by local stakeholders have beeninvited and compiled:

The Environmental Regulations do not prescribe public hearing/ stake holder consultations for

projects of the size and scale of the project activity. Still, as a responsible organization, the

RPBIL undertaken a stakeholder consultation process for the project activity. Following stake

holders have been identified:

Shareholders

Employees

Customers

Local Community

Units in the Industrial Area

Pollution Control Board

Power Corporation Ltd.

Financial Institutions- Bank of Baroda

Equipment Suppliers

Fuel Suppliers

Consultants


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E.2 Summary of the comments receivedNA

E.3 Report on how due account was taken of any comments received:

NA


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SECTION# F Annexure

Annexure 1 Calculation of Rice Husk Requirment

Rice Husk production 20% of Paddy (by Weight)

Energy available from Rice Husk ~ 260 MJ/Ton of paddy

Energy Required by Rice Mill per ton of Rice Produced

Electrical Energy Requirement ~ 70 MJ/ton

Thermal Energy Requirement ~ 105 MJ/Ton

1 Energy Input to steam: m x (hsteam at turbine inlet hfeed water )

= 12x1000x(3213-440)/3600

= 9.243 MWThermal

Boiler efficiency = 80% (assumed)Energy input to boiler= 9.243/.80 = 11.58 MW

GCV of Rice Husk = 13 MJ/kgRequired RICE HUSK = (11.58/13 )x 3600 = 3200 kg/hr

Annual consumption (24 hrs 350 days operation)= 26880 ton/yr

Total input of paddy produces 80% Rice and 20% Rice Husk

Therefore Paddy input will be: 3200/0.2 = 16000 Kg/Hr

Therefore the amount of paddy plant will process = 384 ton / Day

Annexure 2 Calculation of Annual CO2 Emission Estimation

[Considering Weighted Average Emission = 0.74 tCO2e/MWH as worked out by the CentralElectricity Authority (Ref.: CEA CO2 Baseline Database Version 3.0 Baseline Methodology

ACM0002 / Ver 07)]

Electricity production per annum = 1 x 24 x 350 = 8400 MW-h

Annual carbon emission estimate = 8400 x 0.74 = 6216 Ton/annum


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Annexure 3 IRR CalculationsProject Investment:

Fixed Cost = Rs. 8 cr.

Annual generation(Running+maint.) cost = Rs 3/kwh

Electricity rate @ 8/Unit

Annual Saving: 8400 x 1000 x (8 - 3) = 4.2 cr

Life = 25 yr IRR = 52% (payback ~ 2 yr)

Annexure 4 Schematic diagram & Thermal efficiency

Heat rate

Heat rate = Heat input to steam / power generated

= 12 x 1000 x (3213- 440) / 1 x 1000 x 3600 = 9.243 KJ/KWh

Electric power output =1 MWh

Thermal output (process heating) =8 x1000 x(2786.6 -604.3) /3600

=4.848 MW

Overall plant efficiency = Electric power+ Thermal output / total input heat x100

=(1+4.848) / 11.58 x 100

= 50.48%


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rice husk cogen pdd anant joshi

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