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In-Use Diesel Vehicles Retrofit In Hong Kong – Experience and Development.  12 December 20 0 6 BAQ 2006 Kong Ha Environment a l Protection Department T he Government of the Hong Kong Special Administrative Region. Implementation of Retrofit Technologies on buses.

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In-Use Diesel Vehicles Retrofit In Hong Kong – Experience and Development

 12 December 2006

BAQ 2006

Kong Ha

Environmental Protection Department

The Government of the Hong Kong Special Administrative Region

implementation of retrofit technologies on buses
Implementation of Retrofit Technologies on buses
  • Started Diesel Oxidation Catalyst (DOC) trial in 1995
  • DOC reduces PM, HC and CO
  • Voluntarily installing DOC on Pre-Euro and Euro I buses ( 2,600 units)
  • The trial of passive particulate trap is on going until end of 2006
  • If the trial is successful, installation of traps will be completed by 2009
implementation of retrofit technologies
Implementation of Retrofit Technologies
  • Assist Pre-Euro (pre-1995) diesel vehicle owners to install approved devices
  • Light Diesel Vehicle (below 4 tonnes) Low Cost Retrofitting Program
    • 2 approved devices with over 30% PM reduction and 3 years warranty
      • Mandatory cleaning required trap
      • Catalyst
    • Completed on October 2001 (about 24,000 vehicles retrofitted)
  • Installation of approved emission reduction devices are mandatory for pre-Euro < 4 tonnes diesel vehicles since Dec 2003
implementation of retrofit technologies1
Implementation of Retrofit Technologies
  • Heavy Duty Diesel Vehicles (over 4 tonnes)
  • Conducted a trial in February 2000
  • 57 trial vehicles installed with catalysts of about 35% particulate removal efficiency
  • Possible white smoke from long idling vehicles
  • Emission reduction test result and trade comment were all positive
  • Consult particulate removal device specification with international experts
specifications for diesel retrofit devices for vehicles over 4 tons

Specifications For Diesel Retrofit Devices For Vehicles Over 4 Tons

Diesel Retrofit Expert Panel Progress Report (24 July 2001)

purpose of drep
Purpose of DREP
  • To Develop Realistic Specification
    • Identify Devices Which Will Truly Reduce PM Emissions
    • Assure No Other Negative Consequences
    • Prevent Approval of Ineffective Devices
  • Separate Requirements For local (Ultra Low Sulfur Diesel) and Cross Boundary (0.02% Sulfur Diesel) Vehicles
basic performance specifications
Basic Performance Specifications
  • PM Emissions Reductions of at least 25%
  • No Increase in NOx Emissions
  • Not exceeding Vehicle Manufacturers Maximum Backpressure Limits
  • 500 hours durability demonstration
  • Warranty Coverage
  • In Use Verification
report on july 2001
Report on July 2001
  • Draft Specifications sent to the potential suppliers on 5 July 2001

by e-mail : 139

by fax : 10

by post : 258

  • 23 companies provided written comment
chassis engine dynamometer certification testing
Chassis/Engine Dynamometer Certification Testing
  • Representative Test Engine
  • Tests With/Without The Device
  • Measure PM/SOF, CO, THC, NOx, CO2
  • Steady State & Transient Tests with 0.03/0.40 % minimum sulfur diesel fuel
  • Production devices must be identical to certification device
in use verification testing for doc
In Use Verification Testing for DOC
  • Random Screening Tests
    • 10 Randomly Selected Vehicles Each Year
    • Short Test at Governed Speed
    • Average HC or CO reduction at least 70% of Certification Level
    • If fails, device manufacturer responsible for diagnosis, designing fix and after authority approval, instituting repairs at his cost
    • May require full certification testing at Authority’s discretion
    • Individual Failures Repaired by Manufacturer
in use verification testing for non doc
In Use Verification Testing for Non-DOC
  • Burden is on the suppliers to provide valid procedures for DREP approval
other conditions for the suppliers
Other Conditions For the Suppliers
  • Will not cause any unreasonable risk to health, welfare, safety
  • Details of the Principle of Operation must be convincing and accepted by DREP
  • No Engine components or setting modifications
  • Warranty of 250,000 km or 5 Years
  • No maintenance necessary or additive for device through out warranty period
  • No Additional Maintenance Requirements on Vehicles
particulate retrofit device for pre euro non cross boundary diesel vehicles
Particulate Retrofit Device:For pre-Euro non cross boundary diesel vehicles

Specification:

  • Drawn up by an international expert panel
  • For Hong Kong diesel sulphur content of 0.005%
  • 35% particulate removal minimum when new
  • 25 % particulate removal minimum after 5 years or 250,000 km
  • 5 years workmanship and durability warranty
particulate retrofit device for pre euro non cross boundary diesel vehicles1
Particulate Retrofit Device:For pre-Euro non cross boundary diesel vehicles

Tendering Results :

  • 6 bidders,
  • 3 Suppliers selected

Up to 4,000 c.c. US$640

4,001 to 7,000 c.c. US$897

7,001 to 12,000 c.c. US$1,602

12,001 to 15,000 c.c. US$1,923

Over 15,000 c.c. US$2,436

particulate retrofit device for pre euro non cross boundary diesel vehicles2
Particulate Retrofit Device:For pre-Euro non cross boundary diesel vehicles

Installations :

  • Retrofit Program started at end of December 2002
  • Complete retrofitting of about 26,570 pre-Euro (1995) vehicles in 18 months (end in June 2004)
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Particulate Retrofit Device:For pre-Euro cross boundary diesel vehicles

Specifications :

  • Drawn up by an international expert panel
  • For China diesel sulphur content of 0.2%
  • 25% particulate removal minimum when new
  • 25 % particulate removal minimum after 5 years or 250,000 km
  • 5 years workmanship and durability warranty
slide17

Particulate Retrofit Device:For pre-Euro cross boundary diesel vehicles

Tendering results:

  • 2 rounds of tendering;
  • 3 bidders
  • 1 supplier selected,
    • Up to 7,000 cc US$942
    • 7,001 – 12,000 cc US$1,474
    • 12,001 – 15,000 cc US$1,917
    • Over 15,000 cc US$2,314
slide18

Particulate Retrofit Device:For pre-Euro cross boundary diesel vehicles

Installation:

  • Retrofitting Program started in July 2003
  • Complete retrofitting of about 7,500 pre-Euro (1995) vehicles in 18 months (end in December 2004)
long idling duty cycle vehicles
Long Idling Duty Cycle Vehicles
  • Operation including routine idling under low load condition for about 30 minutes before moving

Concrete Mixer

Gully Emptier

Lorry Crane

Pressure Tanker

Aerial Platform

Mobile Crane

Mobile Concrete Pump

  • Two DOCs seems to meet ‘no white smoke’ test procedure during trial
specifications of particulate removal device for long idling duty cycle vehicles
Specifications of Particulate Removal Devicefor Long Idling Duty Cycle Vehicles
  • Drawn up by an international expert panel
  • For Hong Kong diesel sulphur content of 0.005%
  • 35% particulate removal when new
  • 25% particulate removal after 5 years or 250,000 km
  • Before and after ‘long idle’ test procedure, the HC must be within 15% and less than 50 ppm
  • 5 years workmanship and durability warranty
slide21

Particulate Retrofit Device:For Long Idling Duty Cycle vehicles

Tendering results:

  • 3 bidders
  • 1 supplier selected,
    • Up to 7,000 cc US$1,474
    • 7,001 – 15,000 cc US$2,308
    • Over 15,000 cc US$2,820
slide22

Particulate Retrofit Device:For Long Idling Duty Cycle vehicles

Installation:

  • Begin Retrofitting Program in end of June 2005
  • Complete retrofitting of about 2,500 pre-Euro (1995) vehicles in end December 2005
particulate retrofit device
Particulate Retrofit Device
  • Overall Installation Statistics
    • Less than 4 tonnes – 24,000 units
    • Over 4 tonnes – 26,000 units (non-cross boundary)
    • Over 4 tonnes – 7,500 units (cross boundary)
    • Over 4 tonnes – 2,500 units (Long Idling)
in use testing procedures
In use testing procedures
  • 10 randomly selected vehicles for testing each year within warranty period;
  • Correct the failure by contractors;
  • CO measurement by NDIR analyser;
  • CO reduction should meet contract requirements;
  • Exhaust temp and back pressure should be recorded;
  • Back pressure should not increase more than 25mmHg.
in use particulate retrofi t device t est result
In use Particulate Retrofit Device Test Result
  • Over 3 years of on-road application
  • Over 180 in-use DOC were tested
  • CO emission test showed compliance with contract requirement
  • Back pressure data comply with contract requirement (less than 25 mmHg)
retrofit complaints experience
Retrofit Complaints Experience
  • Complaint rate was at 0.5% initially 
  • Now is at 0.14% and dropping
  • All complaintswere resolved by suppliers
  • Nature of complaints:
    • Material and workmanship
    • Excess smoke
    • Affect engine operation
    • Others (installation and repair arrangement, exhaust pipe damage, etc)
  • Be ready for some negative media reporting
emission benefits of retrofitting low cost particulate traps and catalysts on pre euro vehicles
Emission Benefits of Retrofitting Low Cost Particulate Traps and Catalysts on Pre Euro Vehicles

Low Cost Particulate TrapsPre-EuroPost-Euro

# of diesel vehicles up to 4 tonnes about 40,000 24,000

Urban PM emission reduction 6% 1%

Diesel Catalysts

# of diesel vehicles over 4 tonnes about 50,000 25,000

Urban PM emission reduction 9% 4%

way forward
Way Forward
  • All Pre-Euro Diesels have retrofitted with Particulate Removal Device
  • Legislation mandates the installation of Pre-Euro diesel vehicles (except long idling vehicles)
  • Expert panel to approve additional suitable device
  • Put in trial more advance devices such as partial filter
issuance of emission testing notice
Issuance of Emission Testing Notice

ADVANCED SMOKE TEST SINCE SEP 1999

DIESEL TO LPG TAXI

ULTRA-LOW SULPHUR DIESEL

TRAP/DOC

FIXED PENALTY $1000

ON-GOING SPOTTER TRAINING

average hourly spot rate
Average Hourly Spot Rate

ADVANCED SMOKE TEST SINCE SEP 1999

DIESEL TO LPG TAXI

ULTRA-LOW SULPHUR DIESEL

TRAP/DOC

FIXED PENALTY $1000

ON-GOING SPOTTER TRAINING

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Other information

mt@epd.gov.hk

谢谢各位!