ECR Refrigerant · PDF fileBITZER // ECR Refrigerant Seminare // Page 2 ... („P“...

1

Erik Duvellié

Xavier Lammar

ECR Refrigerant Seminare1 & 3 December 2015Gent & Liège, Belgium

BITZER // ECR Refrigerant Seminare // Page 2

Content/ EU F-gas regulation

l Refrigerant situation

l Compressors for natural refrigerants

/ EU Ecodesign

l Requirements

l Products

/ Capacity regulation

l CRII

l VARISPEED

l VARIPACK

/ Conclusion

2

EU F-GAS REGULATION


GWP-values and EU-F-Gas-Regulation steps

0

1000

2000

3000

4000 GWPFlammability group1. Level EU2. Level EU

A2LB2L

A2

A3

3



The refrigerant dilemma


BITZER ECOLINEProduct range

0

50

100

150

200

250Displacementm3/h [50Hz]

CE1 CE2CE3

CE4

BE5

BE6

CE8

Tandems with double displacement

4


BITZER ECOLINEfor low GWP Refrigerants/ Released refrigerants and application conditions can be found in

selection software/ Selections for HFO refrigerants at request

/ www.bitzer.de/websoftware


CO2 as regrigerant

5


APPLICATION OF CO2 AS REFRIGERANTCO2 – A REFRIGERANT WITH LONG TRADITIONAdvantages:/ Ozone Depletion Potential (ODP) = 0 Environmentally friendly

/ Global Warming Potential (GWP) = 1 Environmentally friendly and safe for the future

/ Non-flammable

/ Non-toxic

/ Availability and costs (2 – 5 €/kg, depending on the purity grade and the amount used)

/ High volumetric performance: smaller compressors, pipe works

/ Favorable COP in moderate climates: Low power consumption

/ High heat transfer coefficient: Smaller condensers and evaporators

/ Low pressure losses: Smaller pipes and vessels, etc.

/ Low refrigerant mass flow

/ … and it’s in beer ð so it must be good


APPLICATION OF CO2 AS REFRIGERANTCO2 – A REFRIGERANT WITH LONG TRADITIONDisadvantages:/ Relatively high pressure levels

l Safety aspects (regulations) and component design

l Equipment to avoid or hand excessive pressures during standstill periods

/ Critical temperature at 31.1 °C

l Unfavourable thermodynamic properties for systems with higher dischargepressures / gas cooler outlet temperatures

/ Limited flexibility:

l Min. evaporating temperature due to the triple point of -56 °C

/ Heavier than air in case of leakages

l CO2 accumulates at floor level

/ Odorless and colorless

l No easy perception in case of leakage (CO2 detectors are mandatory)

6


APPLICATION OF CO2 AS REFRIGERANTCO2 THERMODYNAMIC PROCESS

Source: BITZER Refrigerant Report 18


BITZER COMPRESSORS FOR CO2 APPLICATIONS

tc max = 15 °C

The well-proven SL range for subcriticalapplications with CO2 as refrigerant

/ LT stage of a cascade (hybrid) system/ LT stage of an all CO2 booster system/ MOP: HP 53 bar / LP 30 bar

to max = -15 °C

Compressors for transcritical applicationswith CO2 as refrigerant

/ MT stage of an all CO2 booster system/ CO2 heat pump system/ ECO compressor in an parallel compression system

The new ME range for subcritical applicationswith CO2 as refrigerant

/ MT application with high condensing temperatures/ LT stage of an all CO2 booster system with a high

demand on standstill pressures/ MOP: HP 100 bar / LP 100 bar/ Two motor versions

tc max = 25 °C

to max = 0 °C

T: Transcritical applications

ME: High condensing andhigh standstill pressures

SL: Low temp.applications

7


BITZER COMPRESSORS FOR CO2 APPLICATIONS

Why BITZER?/ Compressors for sub-critical applications:

l more than 15 years of experience!

/ First trans-critical field test in a Swiss hypermarket wascommissioned in 2004

/ Asercom certification

/ More than 45,000 BITZER CO2 compressors in the field

/ Main application: Commercial refrigeration

/ Other applications: Heat pump, AC, Industrial Refrigerationand Railway


BITZER Technical Support for CO2 ApplicationsBITZER CO2 Trainings

BITZER offers technical trainings on sub- and trans-critical Applications

/ CO2 Training Centres in Germany, Brazil, Australia, China, USA

l Why CO2 as Refrigerant?

l CO2 Applications: Safety Aspects

l Lubricant Issues with CO2

l BITZER Reciprocating Compressors for CO2 Applications

l System Configurations and Components

l Practical Training: Commissioning of CO2 Systems withEvaluation of the COP

l Troubleshooting and Frequent Mistakes

/ Duration : 2 day*Photo Source: http://fridgehub.com/News/bitzer-praised-for-practical-co2-refrigeration-training-courses

8


Hydrocarbons as regrigerant


Compressors for HydrocarbonsProperties, Performance CharacteristicsPro‘s

/ No ozone depletion potential (ODP = 0)

/ Low Global Warming Potential (GWP = 3)

/ Chemically inactive, low toxicity

/ Favourable material compatibility

/ Good match in volumetric refrigerating capacity and energyrequirements to the “equivalent” fluorocarbon refrigerants

/ Suitable as single substances, no temperature glide(blends with temperature glide also possible)

/ Wide application range due to:

l moderate pressure & operating temperature levels

l favourable gas density and mass flow

9


Con‘s

ê Flammable and explosive “Safety Group A3”

● specific safety measures (demanding safety regulations)

ð increased investment cost

ð liability issues (design, installation, operation & service!)

● limitations to refrigerant charge and plant location

ê Particularly high solubility with usual refrigeration oils:

● strong dilution and solvent effect

ð unfavourable lubrication characteristics

ð danger of excessive wear & reduced life span

● requires additional measures like stronger oil heaters (safety!),pump down cycle, heat exchanger

Compressors for HydrocarbonsProperties, Performance Characteristics


R290 Pressure levels, performance and COP similar to R22R1270 Pressure levels & cooling capacity higher, COP similar to R22

Cooling capacity and COP Pressure levels

Compressors for HydrocarbonsProperties, Performance Characteristics

10


/ All ECOLINE compressors (2 … 8 cylinders) are available forR290 / R1270 („P“ version)

BITZER Recips for Hydrocarbons


BITZER Technical Support for HC ApplicationsBITZER Hydrocarbon Trainings

BITZER offers technical training for hydrocarbons (R290, R1270,…)

/ BITZER Academy in Rottenburg, Germany

l Thermodynamics / Efficiency

l Hydrocarbons: Safety Aspects

l Lubricant Issues with HC

l BITZER ECOLINE Compressors for HC Applications

l System Design and Components

l Practical Training: Small system

/ Duration : 1 day

R290KT-660 Application of HC with semi-hermetic compressors

11


Supplementary Documents

A-510-1 A-500-18A-510-18


F-gas regulation - Summary

With BITZER you are prepared for the F-gas regulation.

We offer you

/ Proven compressor technology

/ User friendly selection software

/ Extended documentation

/ Technical support

/ Trainings

12


EU Ecodesign


EU Ecodesign requirements

13


EU Ecodesign requirements

EcodesignENTR Lot 1 – Load Profile for Condensing Units

MT 0,2…5kWLT 0,1…2kW

COP @ 32°C ð MEPSCOP @ 25°C

(COP @ 45°C)

MT ≥5…50kWLT ≥2…20kW

SEPRMT To -10°CLT To -35°C


SEPR Calculation

Source: Weather Data Viewer, Version 4.0 / 2009 ASHRAE, Inc.

0

50

100

150

200

250

300

350

400

450

-20 -15 -10 -5 0 5 10 15 20 25 30 35 40

Hou

rs p

er y

ear [

h]

Ambient temperature [°C]

Average ambient temperature [°C]

32A

Design temperatureBCD

0,9%

ErP ENTR Lot 1 − Seasonal Efficiency CriteriaTemperature Profile Strasbourg (ASHRAE Weather Data)

14


SEPR Calculation/ SEPR

/ COPPL

l Fix capacity

ð Cd = 0,25l Variable capacity


SEPR Requirements

15


SEPR Requirements


Products to reach Ecodesign requirements

LHè LH_E range/ High efficiency

lNew condensor design

lEC-fans

ðErp 2015

lHigh efficient ECOLINEcompressor

lOptional CRII capacity control

ðImproves SEPR

lFull capacity range meets Ecodesign requirements

/ Low sound emissions

16



ECOSTAR LHV6è LHV5E & LHV7E range/ High efficiency

lNew condensor design

lEC-fans

ðErp 2015

ðFan speed control

lHigh efficient ECOLINE VARISPEEDcompressor

ðFrequency inverter capacity control

ðImprover SEPR

lFull capacity range meets Ecodesign requirements



ECOSTAR LHV5E & LHV7E range/ New controller

lMulti-interface communication

ðModbus, EthernetBEST via BlueTooth

lExtended control functions

/ Extra options available

/ Very low sound emissions

lCompressor housing

lOptional sound jackets

17


Capacity Regulation


ECOLINE VARISPEEDDesign Features

Solidly flanged FI// no vibrations

Suction gas cooled FI// no air filter (service) needed

// no load restrictions athigh ambient temp.Shielded motor cable

// short and preassembled

Up to 70% more capacity// compared to fixed speed// infinite control range more

than 3:1

Full torque up to 87Hz// motor delta connected

(230V-50Hzè 400V-87Hz)

Easy commissioning// FI completely parameterized

18


ECOLINE VARISPEEDSelection

www.bitzer.de/websoftware


CRII SystemDescription

/ Further development of the proven CR system

/ Standard capacity control system for BITZER ECOLINE

/ Compatible with the control logic of the previous CR system

/ Stepless capacity control range:

l 2-, 4- and 6-cylinder compressors:

ð 100% to minimum 10% (1:10)

l 8-cylinder compressors:

ð 100% to 50% (1:2)

19



/ Efficient capacity modulation due to blocked suction concept.

/ Standard capacity control system for BITZER NEW ECOLINE

/ Compatible with the control logic of the previous CR system

/ Stepless capacity control range:

l 2-, 4- and 6-cylinder compressors:

ð 100% to minimum 10% (1:10)

l 8-cylinder compressors:

ð 100% to 50% (1:2)



Selection between 100% & 10%

Discharge gas temp.!!Additional cooling required!

20


BITZER Solutions for Reciprocating CompressorsCapacity Control Methods

VARISPEED

Capacity RegulationECOLINE

!!!NEW!!!VARIPACK CRII


Introduction of external BITZER frequency invertersfor reciprocating compressors (380 – 480 V)

21


General technical data

/ 380 – 480 V ± 10 %

/ IP20 → For switch cabinet mounting

/ Communication ports

l RS485: Modbus RTU

l Ethernet: Modbus TCP/IP, Webserver

l 2 x RS232 (for future extension cards)

/ Safe torque off (STO) → No mains/safety contactor required

/ Real time clock

/ EMC category C2 acc. EN61800 / Second environment acc. EN61000

/ Approvals:


Power range (rated output current vs. housing)

0

50

100

150

200

250

300

350

400

450

500 D E G H J K M

22


Selection of the frequency inverter size


1. External control

2. Evaporating and condensingpressure regulation (with option card)

/ General

l FI detects if an option card andwhich option card is mounted

l Based on that getsautomatically the controlmode and visibleparameters changed

Control modes

23


Control mode 2: Pressure regulation

/ Data for more than 35 refrigerants are integrated in the FIs

l R32, R410A and R744 also implemented, but actually no pressuretransducers available for supporting the higher pressures

Refrigerants integrated in the Frequency invertersR14 R22 R23 R134a R152a R170 R227ea R236fa

R245fa R290 R404A R407A R407C R407F R417A R417B

R422A R422D R427A R434A R437A R438A R442A R448A

R449A R450A R507A R508A R508B R513A R600 R600a

R717 R723 R1150 R1234yf R1234ze R1270


User interfaces (1/2)

/ BEST

l Full Support

/ Keypad

l Multi-language

l SI and IP units selectable

l 2 modes for customers:

ð Standard

ð Refrigeration technician(password protected)

24


User interfaces (2/2)

/ Modbus RTU

/ Modbus TCP/IP

/ Webserver

l FI to PC or remote access possible

l Menu structure identicalto the keypad


Summary of the product highlights

/ Easyl Automatic and optimum selection by the

BITZER Software

l Easy commissioning by the BEST Software

/ Safel VARIPACK + BITZER compressors are

adapted to each other, tested and optimised

/ Intelligentl During trans-synchronous operation, the

maximum frequency is automatically limitedaccording the load

/ With surplus valuesl System control is possible via extension module

25


CONTROL MODULE (CM-RC-01)

ON-BOARD COMPRESSOR CONTROL


SYSTEM SIMPLIFICATION

DATALOG & COMMUNICATION

CONTROL/ Compressor Start (DOL, PW, Y/Δ)

/ Oil heater

/ Head fan

/ SU,CRII and CIC

/ Oil level regulator

/ Less components

/ Less design time

/ Quick diagnosis

/ Easier installation and operation

/ Motor temperature

/ Discharge gas temperature

/ Oil supply (OLC-D1 and DP-1)

/ High Pressure (Compressor Safety)

/ Application Limits

/ Compressor operation statistics

/ BEST software (Wirelesscommunication)

/ Modbus

/ LED indicators

B//SMART MODULE (CM-RC-01)ON-BOARD COMPRESSOR CONTROL

MONITORING & DIAGNOSIS

26


B//SMART MODULE (CM-RC-01)ON-BOARD COMPRESSOR CONTROL

/ Less components in the switchboard: compressor, all its sensors andcomponents can be considered as one device

/ Quick and error-free: all functions are pre-programmed

/ Live monitoring of operating conditions

/ Quick maintenance through operation statistics andeasier trouble-shooting

/ Higher confidence for customer and end customer

/ More value with Modbus communication

/ Higher system reliability and efficiency

ADVANTAGES IN THE PLANNING PHASE

ADVANTAGES IN INSTALLATION / SYSTEM COMMISSIONING

ADVANTAGES IN SERVICE

ADVANTAGES IN OPERATION

BESTBITZER Electronics Service Tool

27


BEST


BESTMenu Configuration

28


Conclusion/ EU F-gas regulation

l Refrigerant situation

l Compressors for natural refrigerants

/ EU Ecodesign

l Requirements

l Products

/ Capacity regulation

l CRII

l VARISPEED

l VARIPACK



29



30



…The good news…

/ Everybody welcome!

/ Trainings: Natural refrigerants, energy-efficiency, capacityregulation, condensing units…

/ Also in Training centre Hasselt

/ Incentive: CO2 TRAINING (2 days)

- 1 person per company, 8 in total

- Charges paid by Bitzer, incl. hotel

- COMPLETE THE FORM AND LET’S GO!

ECR Refrigerant · PDF fileBITZER // ECR Refrigerant Seminare // Page 2 ... („P“...

Documents

Transcript of ECR Refrigerant · PDF fileBITZER // ECR Refrigerant Seminare // Page 2 ... („P“...