JCM_TH_F_PM_ver01.0

JCM Proposed Methodology Form
Cover sheet of the Proposed Methodology Form
Form for submitting the proposed methodology
Host Country

Kingdom of Thailand

Name of the methodology proponents Institute for Global Environmental Strategies
submitting this form

(IGES)

Sectoral scope(s) to which the Proposed 3. Energy demand
Methodology applies
Title of the proposed methodology, and Energy
version number

SavingEvaporator

bywithInstallationof

Mechanical

Vapor

Recompression, Ver01.0
List of documents to be attached to this form

The attached draft JCM-PDD:(please check):

Additional information

Date of completion

26/12/2019

History of the proposed methodology
Version01.0

Date26/12/2019

Contents revisedFirst edition

1anJCM_TH_F_PM_ver01.0

A. Title of the methodology
Energy Saving by Installation of an Evaporator with Mechanical Vapor Recompression,
Ver.01.0

B. Terms and definitions
Terms

Definitions

Evaporator

An evaporator is a device used in a process turning liquid
form in a solution into its vapor to obtain a solution withhigh concentration.

Mechanicalvapor Mechanical vapor recompression is an energy recoveryrecompression (MVR)

method which boosts low pressure suction vapor
generated in an evaporator with a mechanically driven
compressor and uses it again as a heating source in an
evaporator to heat a liquid such as an inlet solution.

Thermal vapor recompression Thermal vapor recompression is a process which mixes(TVR）

the low-pressure suction vapor generated in an evaporator
with a supplied new steam and increases the pressure of
the mixed vapor by an ejector to heat a liquid such as an
inlet solution.

Suction ratio

Suction ratio is the indicator of the efficiency for anejector used in TVR. It is defined as the amount ofrecovered vapor per the amount of new steam.

C. Summary of the methodology
Items
GHGemission

measuresCalculation

Summary
reduction Waste heat recovery by installing an evaporator with mechanicalvapor recompression.

ofemissions

reference Reference emissions are calculated by steam consumption ofreference evaporator, heating value of the steam, efficiencies ofthe project boiler and CO2 emission factor of fuel for the boiler.

Calculationofproject Project emissions are calculated by electricity consumption and2

JCM_TH_F_PM_ver01.0

emissionssteam consumptions by project evaporator and CO2 emission
factors for electricity and steam consumed.

Monitoring parameters•

Total amount of inlet solution to evaporator•

Total amount of evaporation from supplied solution by theproject evaporator•Project steam consumption by project evaporator•

Electricity consumption of project evaporator

D. Eligibility criteria
This methodology is applicable to projects that satisfy all of the following criteria.
Criterion 1

The project installs evaporator(s) which applies mechanical vapor
recompression.

E. Emission Sources and GHG types
Reference emissions
Emission sources

GHG types

Consumption of steam supplied from steam generator by reference CO2evaporator
Project emissions
Emission sources

GHG types

Consumption of steam supplied from steam generator by project CO2evaporator
Electricity consumption of project evaporator

CO2F. Establishment and calculation of reference emissions
F.1. Establishment of reference emissions
Reference emissions are calculated by multiplying reference steam consumption, heating value
and CO2 emission factor of fuel for the boiler. The reference steam consumption is determinedby the theoretical formula for the steam consumption of reference evaporator which applies
thermal vapor recompression. In order to secure net emission reductions in this methodology,
the reference emissions are conservatively calculated in the following manners.

3

JCM_TH_F_PM_ver01.0-Setting inlet water temperature for the steam generation at 38.5 degree Celsius which isderived from the highest monthly average atmospheric temperature in Thailand-Setting the suction ratio at 1.2 by taking the highest value within the range of values applied
to the existing evaporator in the market
In addition, possible emissions from auxiliary equipment which cools non-recovered vapor inthe reference system are not taken into account for calculating the reference emissions.

F.2. Calculation of reference emissionsܴ‫ܧ‬௣ =∑ ܵ‫ܥ‬ோா,௜,௣ × (ℎ௦௧௘௔௠,௜ − ܵܲ‫ܶ × ܪ‬௜௡௟௘௧ )1×× ‫ܨܧ‬௙௨௘௟
1000
ߟ௉௃௛

REp

: Reference emissions during the period p [tCO2/p]

SCRE,i,p: Reference steam consumption by the reference evaporator i during the periodp [t/p]hsteam,i: Specific enthalpy of supplied steam to the project evaporator i [MJ/t]

SPH: Specific heat capacity of water1 [MJ/(t∙K)]

Tinlet: Inlet water temperature for the steam generation [degree celsius]

ηPJh: Efficiency of project boiler for steam supply [-]EFfuel: CO2 emission factor for the fuel consumed by the project boiler for heatingenergy generation [tCO2/GJ]෍ ܵ‫ܥ‬ோா,௜,௣ = ෍
EVtot,i,p൫‫ܸܧ‬௧௢௧,௜,௣ × ‫ܪܮ‬ா௏,௜ ൯ − ‫ܮܨ‬ூே,௜,௣ × ܵܲ‫ܶ( × ܪ‬௅ௌ,௜ − ܶா௏,௜ )‫ܪܮ‬ு்,௜ × (ܴܵ + 1)

: Total amount of evaporation from supplied solution by the project evaporator
i during the period p [t/p]

LHEV,i: Specific latent heat of the evaporation temperature of solution at the projectevaporator i [MJ/t]

SPH: Specific heat capacity of water1 [MJ/(t∙K)]

TLS,i: Temperature of the supplied solution to the project evaporator i [degreeCelsius]

TEV,i: Evaporation temperature of the solution at the project evaporator i [degreeCelsius]

LHHT,i: Specific latent heat of the heating temperature of the supplied vapor to theproject evaporator i[MJ/t]
4

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SR: Suction ratio of ejector in the reference evaporator with thermal vapor
recompression [-]FLIN,i,p: Total amount of inlet solution to the evaporator i during the period p [t/p]1This methodology may apply the specific heat capacity of water instead of specific heat
capacities of solution.

G. Calculation of project emissionsܲ‫ܧ‬௣ = ෍ ‫ܥܧ‬௉௃,௜,௣ × ‫ܨܧ‬௘௟௘௖ +∑ ܵ‫ܥ‬௉௃,௜,௣ × (ℎ௦௧௘௔௠,௜ − ܵܲ‫ܶ × ܪ‬௜௡௟௘௧ )
1000

×1

ߟ௉௃௛

× ‫ܨܧ‬௙௨௘௟PEp: Project emissions during the period p [tCO2/p]

ECPJ,i,p: Electricity consumption of the project evaporator i during the period p[MWh/p]

EFelec: CO2 emission factor for consumed electricity [tCO2/MWh]

SCPJ,i,p: Project steam consumption by the project evaporator i during the period p[t/p]hsteam,i: Specific enthalpy of supplied steam to the project evaporator i [MJ/t]

SPH: Specific heat capacity of water [MJ/(t∙K)]

Tinlet:Inlet water temperature for the steam generation [degree celsius]

ηPJh: Efficiency of project boiler for steam supply [-]EFfuel: CO2 emission factor for the fuel consumed by the project boiler for heatingenergy generation [tCO2/GJ]

H. Calculation of emissions reductions
Emission reductions are calculated as the difference between the reference emissions and theproject emissions, as follows:‫ܴܧ‬௣ = ܴ‫ܧ‬௣ − ܲ‫ܧ‬௣
ERp: Emission reductions during the period p [tCO2/p]

REp: Reference emissions during the period p [tCO2/p]

PEp: Project emissions during the period p [tCO2/p]5

JCM_TH_F_PM_ver01.0

I. Data and parameters fixed ex ante
The source of each data and parameter fixed ex ante is listed as below.
Parameter
EFelecDescription of data

Sourceconsumed [Grid electricity]
The most recent
electricity.
value available atWhen project evaporator consumes only 1) thetimeofgrid electricity or, 2) captive electricity, or 3) validation
iselectricity directly supplied from power applied and fixed
for the monitoring
plants outside of the project boundary
period thereafter.
including cogeneration power plant to the The
dataisfrom
project site through its internal grid (e.g. sourced“GridEmission
industrial park), the project participant
Factor (GEF) ofapplies the CO2 emission factor respectively. Thailand”,
endorsedbyThailand
When project evaporator may consume bothGreenhouse Gas
grid electricity and captive electricity moreManagement
than 2 electric sources, the project Organization
participant applies the CO2 emission factor unless otherwise
instructed by thewith the highest value.
Joint Committee.
CO2emission

factorfor[CO2 emission factor][CaptiveFor 1) grid electricity: The most recent value electricity]
available from the source stated in this table

For the option a)at the time of validation
Specificationof
the captive power
For 2) captive electricity including
generation systemcogeneration system, it is determined based
provided by theon the following options:manufacturer (ηelec[%]).
CO2emissiona) Calculated from its power generation
factor of the fossil
efficiency (ηelec [%]) obtained from fuel type used in
the captive power
manufacturer’s specification
generation system
The power generation efficiency based on(EFfuel [tCO2/GJ])
lower heating value (LHV) of the captivepower

generation

systemfrom

manufacturer’s specification is applied;
6the For the option b)
GeneratedandJCM_TH_F_PM_ver01.0

Parameter

Description of dataEFୣ୪ୣୡ = 3.6 ×Source

100× EF୤୳ୣ୪ηୣ୪ୣୡb) Calculated from measured data
The power generation efficiency calculated
from monitored data of the amount of fuelinput for power generation (FC୔୎,୮) and theamount of electricity generated ( EG୔୎,୮ )during the monitoring period p is applied.

The measurement is conducted with themonitoring equipment to which calibration
certificate is issued by an entity accredited
under national/international standards;EFୣ୪ୣୡ = FC୔୎,୮ × NCV୤୳ୣ୪ × EF୤୳ୣ୪ ×

Where:

1
EG୔୎,୮

NCV୤୳ୣ୪ : Net calorific value of consumed

fuel [GJ/mass or volume]Note:

In case the captive electricity generation
system meets all of the following conditions,the value in the following table may be
applied to EFୣ୪ୣୡ depending on theconsumed fuel type.
The system is non-renewable generation
systemElectricity generation capacity of the

supplied electricity
by the captive
power generation
system(EGPJ,p[MWh/p]).
Fuelamountconsumed by thecaptive
powergeneration system(FCPJ,p [mass orvolume /p]).
Net calorific value(NCVfuel [GJ/massor volume]) andCO2
emissionfactor of the fuel(EFfuel [tCO2/GJ])
inorderofpreference:
1) values provided
bythefuel
supplier;2) measurement by
theproject
participants;
3) regional or
national
default
values;4) IPCC default
values provided intables 1.2 and 1.4of Ch.1 Vol.2 of
2006
IPCC
Guidelines
onNational
GHG
Inventories. Lower
value is applied.

system is less than or equal to 15 MW

fuel typeEFୣ୪ୣୡ

Dieselfuel

Natural gas

0.8 *10.46 *2[Captive electricitywith diesel fuel]CDM approved
small scale*1 The most recent value at the time of7

methodology:

JCM_TH_F_PM_ver01.0

Parameter

Description of data
validation is applied.

SourceAMS-I.A.

*2 The value is calculated with the equationin the option a) above. The lower value of [Captive electricity
default effective CO2 emission factor for with natural gas]
natural gas (0.0543tCO2/GJ), and the most 2006 IPCC
efficient value of default efficiency for Guidelines on
off-grid gas turbine systems (42%) are National GHG
applied.

Inventories for thesource of EF ofFor 3) electricity directly supplied frompower plants outside of the project boundary
including cogeneration power plant, it isdetermined based on the following options:a) The value provided by the power plants
with the evidence;b) The value calculated in the same manner
for the option a) of 2) captive electricity asinstructed above;c) The value calculated in the same manner
instructed for the option b) of 2) captive

natural gas.
CDM
Methodologicaltool "Determining
thebaseline
efficiencyofthermal or electricenergy generation
systemsversion02.0" forthedefault
efficiency
foroff-grid
power
plants.

electricity as instructed above;[Electricity
directly supplied
from power plants
outside of projectboundary]
For option a) theevidence

mayinclude a quotationof emission factor
from the SPP.
ηPJh

Efficiency of the project boiler for steam
supply. If multiple boilers are installed, themost efficient value is applied.

8Specifications of
the project boiler
from catalogue orprepared for thequotation.

JCM_TH_F_PM_ver01.0

Parameter

Description of data

CO2 emission factor for the fuel consumed[Default value]
CDM
Methodologicaltool "Determining
thebaseline
efficiencyofthermal or electricenergy generation
systemsversion02.0" forthedefault
efficiency
ofproject boiler.
The default values
should be updated
along with therevision of theCDM tool.
In the order ofby the project boiler for heating energy

preference:

generation [tCO2/GJ]a) values provided

In case that the efficiency cannot beidentified, one of the following default
values is applied according to the fuel used
for the boiler.
Natural gas: 0.92
Oil: 0.9

EFfuelSourceby the fuelsupplier;
In case that the efficiency cannot beb) measurement byidentified, one of the following default

the projectvalues is applied according to the fuel usedparticipants;

for the boiler.

c) national default
values;Natural gas: 0.0543 [tCO2/GJ]d) IPCC default

Oil: 0.0726 [tCO2/GJ]

values provided intable 1.4 of Ch.1
Vol.2of

2006

IPCC

Guidelines

on National GHG
Inventories. Lower
value is applied.
hsteam,i

Specific enthalpy of supplied steam to the Based on steam
project evaporator i [MJ/t]

tableusing

thevalues in operating
In case that the value applied for this manual or a value
9

JCM_TH_F_PM_ver01.0

Parameter

Description of data

Sourceparameter has changed, the newly applied displayed on thevalue and its date of occurrence is recorded control panel atand stored, then start the new monitoring factory
period with the new value as fixed ex ante.
TinletInlet water temperature for the steam Thaigeneration.

MeteorologicalThe highest monthly average atmospheric Department (2016)
temperature in Thailand is applied.

"ClimatologicalDefault value is set to 38.5 [℃].

Data for the Period
1981–2010" unlessotherwise
instructed by theJoint Committee.

LHHT,i

Specific

latentheatoftheheating Based on steam

temperature of the supplied vapor to the table using theproject evaporator i [MJ/t]values in operating
manual or a value

In case that this parameter has changed, the displayed on the
newly applied value and its date of control panel atoccurrence is recorded and stored, then start factory
the new monitoring period with the newvalue as fixed ex ante.
SR

Suction ratio of ejector in the reference Value derived
evaporator

withthermalvapor from the result ofrecompression.

survey. Default

Default value is set to 1.2 [-].

value, 1.2, should
be revised ifnecessary.

SPH

Specific heat capacity of water
Default value is set to 4.18 [MJ/(t∙K)]

TLS,iTemperature of the supplied solution to the Operating manual
project evaporator i [degree Celsius]

oravaluedisplayed on theIn case that this parameter has changed, the control panel atnewly applied value and its date of factory
occurrence is recorded and stored, then start10

JCM_TH_F_PM_ver01.0

Parameter

Description of dataSource

the new monitoring period with the newvalue as fixed ex ante.
TEV,i

Evaporation temperature of the solution at Operating manualthe project evaporator i [degree Celsius]

oravaluedisplayed on theIn case that this parameter has changed, the control panel atnewly applied value and its date of factory
occurrence is recorded and stored, then start
the new monitoring period with the newvalue as fixed ex ante.
LHEV,i

Specific latent heat of the evaporation Based on steam
temperature of solution at the project tableevaporator i [MJ/t]

using

thevalues in operating
manual or a value

In case that this parameter has changed, the displayed on thenewly applied value and its date of control panel atoccurrence is recorded and stored, then start factory
the new monitoring period with the newvalue as fixed ex ante.

11