Post on 22-Dec-2015
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ENERCOV SYSTEMS
By
YF Yap
Enercov Co.
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t1. ENERCOV (SUZHOU) Co Ltd
Block B, B6-7, Suhong Ind Square,#81 Suhong West Road,Suzhou Industrial Park,JiangSu, China 215021
2. ENERCOV (THAILAND) Co Ltd52/1 Moo 13 Krungthep-Kreeta Road,Sapansung, Bangkok 10250Thailand
3. ENERCOV (SINGAPORE) Co Ltd80 Genting Lane #06-02, Genting Block,Ruby Industrial Complex,Singapore 349565
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We are
TEMPERATURE ,HUMIDITY & CONTROLS
SPECIALISTS
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Presentation Details
1. Company Policies2. Desiccant Application3. Enercov Application4. Enercov’s Control System5. Enercov’s Components6. Proposals to NTU7. Job References8. Conclusion9. Questions & Answers
Company Policy
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1. Assist our customers to reach the bestsolution for your needs.
2. Design your unit.3. Use Good Quality Components.4. Assemble and Start Up.5. Provide Good After Sales Service.6. Customer Satisfaction.
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Desiccant Wheel
HumidifiedExhaust Air Outside Air
HumidifiedRoom Air
DehumidifiedAir into
CleanRoom
--------------------------------------------------
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Advantages1. It can be used for very low
Room Dew Point Temp < 4 deg C2. It can be used to achieve RH < 10%
Disadvantages1. High Power Consumption due to Heating
Element.2. Steps control and not analog.3. High Maintenance Cost. Need to change
filter and Desiccant.4. Loose Desiccant can contaminate the supply air .5. Need big floor space.
ANNUAL SAVINGS H
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ENERGY RECOVERY
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DX Coil
EvaporatorCoil
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ENERCOV SYSTEM Evaporator
CoilCondenser
Coil
Semi HermeticCompressor
Chilled WaterCoil
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Refrigeration Cycle Diagram
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Psychometric Explaination
Outdoor Condition
RoomCondition
Coolin
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Heating
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DX Coils
Advantages1. Uses Energy Recovery. Very little energy wasted.2. VSD control. Analog Control.3. Most cost effective to control RH above 30%.4. Low Maintenance Cost. Wash the coil with water.5. No contamination to supply air due to no direct
contact media. 6. DX coils is build into the AHU. Need less space.
Disadvantages1. Limitations to control RH below 30% RH due to
minimum suction gas temp of 3 deg C.
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ITS SOUND SIMPLE
BUT ALL THIS THINGS
IS NOT COMPLETE WITHOUT
TOTAL CONTROL
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& Desiccant Control
1. Room RH Sensor Activate when RH above 55%.2. Signal send to DDC.3. Activate to ON the Desiccant Unit. 3 stages heater
in Desiccant Unit fully ON.4. RH of Room Drops to 50%. Then , 1 stage heater OFF.5. Once RH drops below 45% , 3 stages heater OFF.6. Once RH above 55% , 3 stages heater ON again.7. This system uses STEP CONTROL and NOT
ANALOG CONTROL.8. MOST IMPORTANTLY Control DEHUMI-
DIFICATION & COOLING SEPARATELY.
Bio
safe
ty L
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RESULTS WITH ENERCOV SYSTEMH
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RESULTS WITH ENERCOV SYSTEMH
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Before we can start to CONTROL
We must know
What are the
CONTROL MODE
HeatingHeatingCoolingCooling
DehumidificationDehumidification
HumidificationHumidification
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Process of the Air
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ENERCOV SYSTEM
CONTROL Dehumidification, Cooling,Heating & Humidification to keep
Temperature and Relative Humidityof the ROOM as
CONSTANT as POSSIBLE.
ENERCOV Humidity Total Control Concept
DX COILSHot Gas Reheat,Hot Gas Bypass,
VSD &DDC Controls System
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High Quality Components UsedH
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CARRIER AHU
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HUMIDITY CONTROL UNIT
CAREL CONTROLLER, PANEL & SENSORS
DDC PROGRAMMABLE4 x 20 LCD Display
Temperature &Humidity Sensor
Pco1 Controller
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CAREL STEAM HUMIDIFIER
We would like to Proposed to the
TOP MANAGEMENT ofNANYANG TECHNOLOGICAL
UNIVERSITY ( NTU )
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PROPOSE ENERCOV SYSTEM
AHUEnercov Unit
AND
CONTROLLER, PANEL & SENSORS
DDC PROGRAMMABLE4 x 20 LCD Display
Temperature &Humidity Sensor
Pco1 Controller
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tENERCOV’S CONTROL
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ENERCOV CONTROL ITEMS
1. Two sets of Sensors Temperature & HumidityOne at Supply Air and One in the Room.
2. Solenoid Valve to Control The Reheat Coil.3. Control Valve to Control Chilled Water Coil.4. Solenoid Valve to Control the HotGassBypass.5. Temp Sensor for Air Off Chilled Water Coil.6. Temp Sensor for Air Off DX Cooling Coil.7. Others
Control Points ScheduleH
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Psychometric ProcessH
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ENERCOV
DX Cooling Coil
( 20kW Only )
ENERCOVDX Heating Coil
MU
NT
ER
’S Dehum
id
( 98 kW)
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DX Cooling Coil
Total Cooling 31.58 kWSensible Heat Rat 0.51Sensible Heat 16.1 kWLatent Heat 15.5 kW
Chilled Water Coil
48.4 kW0.94
45.5kW2.9kW
ENERCOV FLEXIBILITY
Range for Sensible Heat 9.1 kW to 61.6 kWRange for Latent Heat 0.58 kW to 18.4 kW
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ENERCOV SYSTEM
CONTROL Dehumidification, Cooling,& Heating to keep
Temperature and Relative Humidityof the ROOM as
CONSTANT as POSSIBLE.
RESULTS WITH ENERCOV SYSTEMH
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TOTAL CONTROL
TEMPERATURE 22 +/-1 deg Celcius
and
RELATIVE HUMIDITY 40%-50% RH
JOB REFERENCES
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JOB REFERENCESH
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Health Thailand.3. NSM Factory Co Ltd.4. UL & CE Standard Testing Room Bangkok.5. Ministry of Medicine Thailand Vaccine
Production Class 10000.
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1. Takeda Lace Co Ltd
• Temperature 24 deg C +/- 1 deg C• Relative Humidity 65% +/- 2% RH• DDC micro processor based control system• Steam Humidifier capacity control• Cooling / Heating / Dehumidification /
Hum are controlled in proportional linearity.
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Takeda Lace Co Ltd
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2. Biological Lab Safety 3 Ministry of Health Thailand
• Temperature 23 deg C +/- 1 deg C• Relative Humidity 50% +/- 5% RH• Room Pressure Clean Room - 20 Pa• Room Pressure Clean Room + 20 Pa• 100% Outdoor Air Intake• DDC micro processor based control system• Hot gas bypass system
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Biological Lab Safety 3 Ministry of Health Thailand
Biological Lab Safety 3 Ministry of Health Thailand
CONTROL POINT DIAGRAMFOR BSL-3 LABORATORY FACILITY
DATE : 15-SEP-2003
?2 ?C
?10 %rh
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3. NSM Factory Co Ltd
• Temperature 27 deg C +/- 1 deg C• Relative Humidity < 40% RH• Double series evaporator coils system• Hot gas by pass system• DDC micro processor based control system
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4. UL & CE Standard Testing Room ( Air Conditioner Performance Testing Room 12000 - 72000 Btu/Hr )
• Room Temperature Error +/- 1 deg C• Room Humidity Error +/- 5% RH• Steam Humidifier capacity control• Cooling / Heating / Dehumidification / Hum are controlled in proportional linearity.
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UL & CE Standard Testing Room
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UL & CE Standard Testing Room
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5. Vaccine Production Clean Room Class 10000
• Room Temperature < 22 deg C• Room Humidity 50% +/- 10% RH• Room Pressure 10 – 20 Pa• GMP Clean Room Class 10000• Air Change per Hour 30• Cooling / Heating / Dehumidification / Hum are controlled in proportional linearity.
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Vaccine Production Clean Room Class 10000
CONCLUSION
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TOTAL CONTROL ON THE TEMPERATURE & RELATIVE HUMIDITY
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1. CONTROL TEMPERATURE & RH by CONTROLLING COOLING, HEATING,DEHUMIDIFICATION SILMULTANEOSLY.
2. USES MICROPROCESSOR CONTROL.3. HAVE MORE THAN 20 POINTS SENSOR &
CAN BE ADJUSTED TO MEET DESIRED TEMPEARATURE & RH OF THE ROOM.
4. USER FRIENDLY.5. ASSURANCE THAT TEMPERATURE
22 C +/- 1 deg C.6. ASSURANCE RELATIVE HUMIDITY
40% - 50% RH.
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BRAIN for the Air Conditioning System to
CONTROL the Temperature 22 -/+ 1 deg C and
Relative Humidity 40 - 50% RH& Save at least 70% Energy Compare
To Desiccant Unit
ITS our JOB to PROTECT
THE EARTH for the
FUTURE of OUR CHILDREN
SAVE ENERGY
Thank you