The technical description of MOIST PROCESSOR®
Characteristics of humidity control air conditioner of liquid desiccant method

DYNA-AIR Inc.

Contents
Ⅰ MOIST PROCESSOR® and its characteristics
Ⅱ Liquid desiccant method and its superiority
Ⅲ Structure of MOIST PROCESSOR®

Ⅳ Basic performance and specifications of MOIST PROCESSOR®
V

Use of low quality heat source and choice of power source

Ⅰ MOIST PROCESSOR® and its characteristics
1 What is MOIST PROCESSOR®
MOIST PROCESSOR® is the only one domestic humidity controlling air adjusting system of liquid
desiccant method.
It shows not only excellent in ability of humidification and dehumidification but also ability of cleaning air byusing liquid desiccant solution and ventilating by supplying air with positive pressure. Also it realizes energysaving by using various kinds of power source.

Humidifying
Humidity
Humidifying
abilitycontrolling ability
ability
Four characteristics of
MOIST PROCESSOR®

Energy-saving
use of exhausted
air

Purifying air
Big amout
ventilation
1

Ⅰ MOIST PROCESSOR® and its characteristics
2 Merits of introducing MOIST PROCESSOR®
Merits
Improvement of
comfortability byrealizing
appropriate
temperature
Cleaning indoor air
by supplying clean
air and eﬃcientventilation

Contents
It realizes more comfortable feeling temperature under same temperature
It maintains comfortable feeling temperature and at the same time reduces
diﬀerence between outside temperature and indoor temperature and decreases loadon human bodies caused by the diﬀerence of temperature
It reduces harmful materials like fungus, bacteria, and chemicals
It reduces infection risk of ﬂu during winter time.
It realizes high level processing of protection from dust, removal of bacteria anddeodorization by making air contact with the ﬁlter material which has been
inﬁltrated with liquid desiccant solution
It exhausts harmful materials and odor outside by supplying air with positive
pressure
By controlling humidity, it reduces diﬀerence from the outside temperature underconditions of the same feeling temperature and decreases load of indoor air
conditioner.

Eﬀect of savingenergyIt realizes energy‐saving by using low level heat source eﬀectively.
(Heat temperature 45℃ , Cool temperature 15℃)
It makes it possible to use air conditioners with high energy eﬃciency on conditionsof controlling humidity.
(high sensible heat air conditioners or radiation air conditioners etc.)2

Ⅰ MOIST PROCESSOR® and its characteristics
3 Relation of harmful materials and humidity
In order to realize not only comfortability but also high quality of indoor air, controlling humidity
is very important. MOIST PROCESSOR® realizes high quality indoor air environment bycontrolling humidity, cleaning and supplying air with positive pressure.

Increase

bacteria

Comfortable
humidity
40%˜60%virus
fungustick
respiratory system
infectious disease
allergy (rhinitis, asthma)chemical action (rust etc.)
ozone generation

decrease3

Ⅱ Liquid desiccant method and its superiority
1 Method of controlling humidity by air conditioner
There are two processes to control humidity ; humidifying process and dehumidifying process.
For the humidifying process, usually “vaporization system” is used. In regard to thedehumidifying process, there are two methods.
① Cooling dehumidification which means dehumidification by supercooling② Desiccant dehumidification which uses solid desiccant.

2 Cooling dehumidification
This is the method that air is cooled until the aimed dew-point temperature and condenses
water in air and humidifies it. This method is usually adopted for home air conditioners, but wecan say, if exaggerated, that they only cool air and it is basically same as air-cooling.
If you aim “ the aimed dew-point temperature smaller than the aimed temperature “ ( this is
general.) ,you need to reheat the air , which results in big loss of energy.
Processed
aircooled too
much

Cooling coilreheat coil

Dehumidiﬁed air
with appropriate
temperature

4

Ⅱ Liquid desiccant method and its superiority
3 Desiccant dehumidification
This is the method that makes absorbent water in air and dehumidifies. To dehumidify continuously, weneed to release moisture by heating the absorbent and reproduce it.
Desiccant dehumidification methods are roughly divided into two methods, depending on which
absorbents you use.
① Dry desiccant method which uses Silica gel, Zeolite Polymer absorbent.
② Liquid desiccant method which uses lithium chloride, lithium bromide, triethyleneglycol,etc.

4 Dry desiccant method
It dehumidifies by making processed air pass through a rotor filled up with absorbent, like polymer
absorbent. At the opposite side of the rotor it makes the heated air pass through and lets theabsorbent inside the rotor release water, which reproduces the absorbent.
By rotating the rotor it repeats the process of dehumidification and reproduction. The pressure
difference between processed air and regenerated air occurs and this results in leaking of a part ofsensible heat and latent heat.

Preheat coilExhausted
air

Desiccant rotor

processed
air

5

Dehumidiﬁed
airRegeneration
coil

Regeneratedair

Ⅱ Liquid desiccant method and its superiority
5 Liquid desiccant method
Solutions, like Lithium chloride, lithium bromide, or triethylene glycol are used as absorbents.
If the concentration of water solution is high, free water molecules at gas-liquid interface decrease andvapor pressure is reduced. The situation, that water is difficult to evaporate, occurs.
“ Vapor pressure of solution smaller than vapor pressure of air” : in this state, solution absorbs waterfrom air until it reaches equilibrium of gas liquid, which means air will be dehumidified and density ofsolution will be lowered. On the other hand, if the temperature is high, vapor pressure of solution will
increase.
“ Vapor pressure of solution bigger than vapor pressure of air” ; in this state, the solution releases water
into air until equilibrium of gas liquid is reached. Air is humidified and density of solution increases.
Solution gains dehumidifying ability again through being reheated.

Processor

Processed
Air

Desiccantsolution
Cooling

Dehumidiﬁed
air withappropriate
temperature

Ventilation

Thin desiccant after it has absorbed
water

Desiccant which has been reproduced
and become concentrated

6

Regenerator

Regenerated
air

Desiccantsolution
ReheatingⅡ Liquid desiccant method and its superiority"6-#&6-*(+!)*+%

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]+'&%6A%!
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=.!^6$(&*_6-*(+c%6-*+,!2(&!
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"#$%&'(()*+,!-.$%!/%0#1*/*2.*+,@=A()#-%!0#1*/*-.

6 Comparison of change of temperature and humidity at each humidity control
method ( at the time of dehumidifying)① Problems of supercooling type dehumidification!! ;&.!/%A*''6+-!/%0#1*/*2.*+,
KLM"!"*/%!(2!$&('%AA*+,
・The vaporization temperature of refrigerant needs to be!!
N#M"!"*/%!(2!&%,%+%&6-*(+lowered, therefore, energy effect will be reduced

OF"P&%'(()*+,
・There;%0#1*/*W'6-*(+!=.!A#$%&'(()*+,is energy loss because of reheating
QFGRSTUVXVYRSTUV ;%0#1*/*W'6-*(+!=.!/%A*''6+Z[RST\\\]+'&%6A%!6+/!/%'&%6A%!(2!-%1$%&6-#&%!=.!^6$(&*_6-*(+N#`ab`\\c%6-*+,!2(&!&%,%+%&6-*(+② Problems of dry desiccant dehumidification"#$%&'(()*+

345!!"6-#&6-*(

789:!;&.<=#)>?9:!@=A()#-BCDEFG H((

・It is heated at the time of desiccant dehumidification
because of condensation heat. Another cooling process!!!!!!!!!!!!!!!!!!!!!!!;
!
!
J%0%6
is needed.

d*e#*/!/%A*''6+-!/%0#1*/*W'6-*(+・There is energy loss by leaking of heat at the time of
c%6-*+,!!6+/!0#1*/*2.*+,!(#-/((&!6*&!2(&!&%,%+%&6-*(+
regeneration.
;%0#1*/*2.*+,!=.!0#1*/*2.*+,!6,%+-!f!*-!'6+!=%!'(()%/!1(&%!6+/!)%AA!=.!A()#-*(+gh7Ⅱ Liquid desiccant method and its superiority
7 Humidifying by liquid desiccant method
The equipment required for humidifying process is simple and cheap so that the importance for humidifying itself tends to beunderestimated, but the liquid desiccant method shows its superiority under the humidifying process as well.
When a common vaporization system humidifier is used in indoor, the problems as follow occur.

・ Indoor temperature gets low because of vaporization heat.
・ Because adjustment mechanism of ability is poor, it is difficult to realize and maintain appropriate・・humidity.
Humidity tends to be unbalanced and condensation tends to occur at places where humidity is high.
Especially when several machines are in use, operational load at supplying water and cleaning ,etc.
is big.

It can be said that in order to realize appropriate temperature and humidity, it is ideal to do heating process by heating
equipment and outdoor air adjusting device. The air conditioner of desiccant method (both of liquid type and dry type)makes it possible to absorb water from air and provide air into indoor. But In case of low humidity of outside air, it has toprocess as ten times amount of air or more as that to be supplied to indoor. It is not realistic that only water absorbed fromoutside air should be humidifying source.
The humidifying agent for liquid desiccant method is “ water solution”. Enough humidity controlling ability can be obtainedby adding water to solution.

processor
Processed
air

Desiccantsolution
Heating

Humidiﬁed air withappropriate
temperature

Ventilation

processor
Reproduced
airAddingwater
Desiccant which has absorbed
humidity and got diluted
Desiccant which has released
humidity and got concentrated
8

Desiccantsolution
Cooling

Ⅱ Liquid desiccant method and its superiority
8 Cleanliness of supplied air
When you talk about purpose and need of ventilation, the first item which appears is to secure oxygenamount. But this is the most basic element but in practical air conditioning, “realization of the environmentof clean indoor air” is its purpose.
To achieve it,① Ventilate enough amount of air to remove harmful material which occurs indoor.
② Provide clean air into indoor.
③ Prevent harmful material to invade into indoor
These three items need to be realized. To “realize environment of clean indoor air”, it is important to provide
a big amount of clean air by positive pressure after temperature / humidity adjustment. In liquid desiccant
method, solution will be infiltrated into filter medium and air is made pass through it, therefore high level of
dust control, sanitization, and deodorization are executed at the same time.

Processing
machineOutdoorAir
Gas-liquid contact part

DesiccantAt the same time of process ofadjusting humidity, harmful
material is removed fromoutside air by contacting withdesiccant.

Clean airwithadjusted
humidity

Dirty indoor air is exhausted
by the diﬀerence of pressure.

Prevent harmful
material to invade
by maintaining
positive pressure

Supply clean air bypositive pressure
9

Ⅱ Liquid desiccant method and its superiority
9 Superiority of liquid desiccant method against dry desiccant method
Moist Processer uses liquid desiccant method using lithium chloride. Compared to common dry
desiccant method,① The abilities of dehumidification and humidification are high.
⇒per 1㎥ of supply air,

②

③
④
⑤

[dehumidification of 15g] [humidification of 15g] are possible.

The temperature which is needed for reproduction of absorbent is low and energy-efficient.
And it is easy to use low temperature exhaustion heat.
⇒ compared to supercooling dehumidifying method, approx 30%, compared to dry desiccant method,
approx 18%, its energy efficiency is very high.
The ability of dehumidification and humidification is easy to control because it is fixed by the density
and temperature of solution.
High level dust control, sanitization, and deodorization processing are executed at the same time because
solution is infiltrated into
filter medium and it makes air pass through at the process of dehumidification and humidification.
By exchanging the role of processer and regenerator, the switching between humidifying operation anddehumidifying operation is possible.

MOIST PROCESSOR® is the only one Japanese product which is controlling
humidity and air adjusting system adopted liquid desiccant method.

10

Ⅲ Structure of MOIST PROCESSOR®
1 Image of structure

Processed air(Supply air)Heat exchanger(Solution ⇔ Refrigerantor Hot water )Auxiliary heat source(Hot water supply gas
system installedor Hot water receiving )Reproduced air
Exhausted air
Filling
material

Filling
material

Circulation pumpTaking inoutsideair

Taking inoutsideair

Lithium chloride
solution

Circulation pump
Basic heat source(Heat pump installed or Hot water /Coldwater receiving )Liquid delivery pump
(Processor→
Regenerator )11

Liquid delivery pump(Regenerator →Processor)

Lithium chloride
solution

Heat exchanger(Solution ⇔ Hot water )Ⅲ Structure of MOIST PROCESSOR®
２. Image of dehumidifying operation

3

3
2

1

4

2

4
5
1

5

6

①

Taking outside air into regenerator②

Heating solution inside of regenerator
by heat exchanger③

Heating more by auxiliary heat source
depending on load①

Taking outside air into processer②

Cooling solution inside of processer byheat exchanger③

Dropping cooled solution down to filling material④

Cooling and dehumidifying outside air whichcontacted with solution at filling material④

Dropping heated solution down to fillingmaterial⑤

Delivering solution which density got low bydehumidification into regenerator⑤

Exhausting water into outside air whichcontacted with solution at filling material
and regenerate solution⑥

Delivering concentrated solution into
processer

12

Ⅲ Structure of MOIST PROCESSOR®
3 Image of humidifying operation

3

1
2

1

4

2
tap water

5

3① Taking outside air into processer① Heating solution inside of regenerator by heat exchanger② Supplying tap water and heating by heat exchanger② Heating solution inside of processer by heat exchanger③ Dropping heated solution down to filling material③ Delivering solution which density got low into processer④ Heating and humidifying outside air which contacted withsolution at filling material

solution which density got high by humidification⑤ Delivering
into regenerator

13

Ⅳ Basic performances and specifications of MOIST PROCESSOR®
1 Performance of controlling humidity of MOIST PROCESSOR®
Summer

Winteroutside air

34.3℃ 56.9%(19.5g/Kg’)-0.3℃ 35.5%(1.3g/Kg’)

supplied air

20.0℃ 48.2%(7.0g/Kg’)

28.0℃ 59.0%(14.0g/Kg’)

28.0℃ 40.0˜50.0%

20.0℃ 45.0˜55.0%-15.0g+15.2gAbility of dehumidification and humidificationof model 3,000㎥/h

45.0Kg/ｈ

45.7Kg/hAbility of dehumidification and humidificationof model 9,000㎥/h

135.0Kg/ｈ

137.0Kg/ｈindoor (recommendation value)
Amount of dehumidification andhumidification per 1㎥ wind quantity

Dehumidifying by MOIST PROCESSOR®
SuppliedairOutside air( summer)more than 60% of existing water is reduced!!
Outside air(winter)

Humidifying by MOIST PROCESSOR®
Suppliedair

Increasing existing water to as about
ten times as before!!
14

Ⅳ Basic performances and specifications of MOIST PROCESSOR®
2 Ability of dust removal of MOIST PROCESSOR®
It takes outside air in, then removes dust from it and supplies the air.
・It is able to remove almost 100% of dust which size is more than 10um.
(Pollen shall be more than about 20um)
・The rate of removing fungus included in outside air is more than 70%.
Rate of collecting dust(%)

Rate of collecting dust by particle size
Particle

Rate of collecting dust

測定日時2011年12月15日，10：00~12：00
Date of measurement: Dec ：
15 201110:00~12:00
Place of measurement: rooftopof introduction facility
測定場所： 導入施設屋上
Measurement model: MOIST PROCESSOR® 6000CMH type( introduced in April, 2011)
測定機種 ： モイストプロセッサー6000CMHタイプ（2011年4月導入）
Measurement apparatus of : Particle counter (KR-12A)
測定機器 ： パーティクルカウンター（KR-12A）

15

Ⅳ Basic performances and specifications of MOIST PROCESSOR®
3 Conditions of temperature and humidity and structure of basic system
Conditions of standard temperatureand humidity

標準温湿度条件

Outside air
conditions

外気条件

Supplied air
conditions

給気条件

Processor

乾球温度

絶対湿度

Dry-bulb temperature Absolute temperature

Summer夏（除湿）34.3 ℃(dehumidifying)

19.5 g/kg'

Winter冬（加湿）-0.3 ℃(humidifying)

1.3

g/kg'

Summer夏（除湿）20.0 ℃(dehumidifying)

7.0

g/kg'

Winter冬（加湿）28.0 ℃(humidifying)

14.0 g/kg'
Regenerator

16

Ⅳ Basic performances and specifications of MOIST PROCESSOR®
4 Processer specification
Model / type

MPRC-3*0
HPGT-DO（C）

MPRC-15*0
HP（s）GT-DO（C）

MPC-3*00
D-F/R-O

MPC-6*00
D-F/R-O

MPC-9*00
D-F/R-O

Triple-phase 200V
50/60Hz
10.0

Triple-phase 200V
50/60Hz
1.8

Triple-phase 200V
50/60Hz
3.5

Triple-phase 200V
50/60Hz
5.5

Product image

Consumptionkw

Single-phase 100V
50/60Hz
2.3

FLA

A

-

75

20

30

40

width

mm

1,605

3,130

1,570

2,170

2,770

depth

mm

1,340

1,430

1,500

1,500

1,500

height

mm

2,000

2,345

1,765

1,765

1,765

weight(dry)

kg

770

1,550

680

910

1,180

liquid content

kg

50

270

200

380

560

operating weight

kg

820

1,820

880

1,290

1,740

ﬂow rate

㎥/h

300

1,500

3,000

6,000

9,000

ESP

Pa

Dehumidification

kw

5.0

23.3

46.6

93.2

139.8

Humidification

kw

6.1

30.5

60.9

121.8

182.7

Dehumidification AMT

kg/h

4.5

22.5

45.0

90.0

135.0

Humidifying AMT

kg/h

4.7

22.9

45.7

91.4

137.2

Cold water TEM

℃

240.0

360.0

Power supply
Electricity

FormulaAbility
Heat Supply

Flow rate
Hot water TEM
Flow rate

Noise level

L/min

150

13 → 19
-

60.0

120.0

℃

37 → 30

L/min

-

60.0

120.0

240.0

360.0

dB

-

60.5

66.8

67.4

68.5

17

Ⅳ Basic performances and specifications of MOIST PROCESSOR®
5 Regenerator specification
Model / type

MPRC-3*0
HPGT-DO（C）

MPRC-15*0
MPR-3*00
HP（s）GT-DO（C） HP（s）GT-O（C）

Product image

Integrated only

Integrated only

Power supply--

Electricity

MPR-6*00
HP（s）GT-O（C）

MPR-9*00
HP（s）GT-O（C）

Triple-phase 200V
50/60Hz
29.5

Triple-phase 200V
50/60Hz
43.5

FormulaabilityConsumption

kw

-

-

Triple-phase 200V
50/60Hz
15.5

FLA

A

-

-

100

150

225

Width

mm

-

-

2,310

3,470

4,901

mm

-

-

1,832

1,920

1,630

mm

-

-

2,800

2,800

2,800

kg

-

-

1,420

2,240

3,050

kg

-

-

390

770

1,160

Operating weight

kg

-

-

1,810

3,010

4,210

Wind ﬂow rate

㎥/h

-

3,000

6,000

12,00018,000

Dehumidiﬁcationkw-

2,184.0

1,056.0

1,548.0

2,088.0Comp output

kw

-

3.8

7.5

7.5 x 2

7.5 x 3

Depth
HeightDry-weight
LiquidHeat Supply

Support cold water
Temperature
Support cold water
AmountGas heater out
Noise level℃

25 → 40

L/min

72.0

260.9

126.1

184.9

249.4

kw

7.0

41.9

69.2

112.0

69.2 x 2

dB

-

-

67.6

68.6

69.5

18

Ⅳ Basic performances and specifications of MOIST PROCESSOR®
6 Installation area etc.
3000CMH(all function model )1500CMH(all function model )Demineralizer

Demineralizer

Integrated model

Processer

1.0m

1.0m
1.4m

0.6m

1.0m
1.8m

2.4m
0.6m

3.1m

1.6m
8.5m

about16㎡

about24㎡

weight：about1,820kg

Processer

1.0m

Generator

Demineralizer

Processer
1.0m
1.6m

2.9m

3.5m

Generator

1.0m

1.0m
1.9m

weight：about3,020kg

9000CMH(all function model )6000CMH(all function model )

0.6m

2.8m

2.3m

6.7m

Demineralizer

Generator

0.6m

2.2m

3.5m

5.0m

2.8m
12.0m

10.3m

about30㎡

about42㎡

weight：about4,630kg

6000CMH(Humidiﬁcation specialized model )weight：about6,280kg

9000CMH(Humidiﬁcation specialized model )Demineralizer

Demineralizer Generator
1.0m

Processer

1.0m
1.5m

1.5m

2.5m

2.2m

0.6m

about15㎡

2.8m

0.6m

5.8m

2.5m

6.4m

about16㎡

weight：about1,620kg

19weight：about2,070kg

Ⅴ Use of low quality heat source and choice of power source
１.The image which using low quality heat source
MOIST PROCESSOR® which uses liquid desiccant can process latent heat effectively byusing various power sources and low-quality heat sources, therefore it can construct usefulsolutions utilizing various kinds of heat source

Hot heat source

Cold heat source

Air conditioner
exhaust air

GHP exhaust
heat

Boiler waste
heat

Cogeneration
exhaust heatLowtemperature
hot water

Biomass exhaustheat

Tap water

LNG cold heat

Well water

Cooling operation
Dehumidification

Processer

Heat source
Hyperthermia

Heating operation
Humidification

Power source

MP
Gas

Regenerator

ReleaseCold
Adsorption

Heat pump

Electric

20

Oil products