Shanghai DME Bus Demonstration: Recent Progress

Transcription

1 Shanghai DME Bus Demonstration: Recent Progress Zhen Huang, Wugao Zhang, Junhua Fang, Xinqi Qiao 4th International DME Conference Hilton Stockholm Slussen, Stockholm 6-9 September 2010

2 Contents 1. Background 2. Progress of Shanghai DME Bus Demonstration 3. New technology of DME engine in SJTU 4. Research of material compatibility for DMEV 5. DMEV standards in China 6. Conclusions

3 Background The DME production capacity in China is more than 10 million tons now, but only about 30% of the capacity turns to production. The DME market includes both domestic and industrial usage, but used as vehicle fuel is also very attractive. It is proven that DME is a excellent diesel alternative for compression ignition engine. It is severely shortage of vehicle fuel, specially diesel fuel in China in the coming years, large amount of alternative fuel is needed.

4 DME Market Alternative fuel for domestic LPG Alternative fuel for diesel engine Chemical industry material Alternative fuel for Incisory gas Distributing energy (CHP or other energy) Stove fuel (for production of glasses and ceramics) Electric/Ether/Methanol joint production Challenges:(1) DME supply and the market capability (2) R&D of dedicated DME burner (3) Vehicle tech. and experimence. SJTU-- Shanghai DME Bus Demo: Recent Progress DME4, Stockholm, 6-9 September 2010

5 Automobile Industry in China Gross vehicle sale and increase quantity from 1994 to 2009 Source: China Auto Industry Association, 2010 It is predicted that the vehicle production and sale quantity will be 15 million in 2010.

6 Challenges of Vehicle Development in China Energy Safety Air Pollution Global Warming

7 Emission Control Regulations of Diesel Engine

8 Fuel Consumption & CO 2 Regulations for Vehicle FC(L/100km) USA Light Truck USA Car EUROPE For global warming, CO 2 and fuel consumption for vehicle is becoming more and more strict. In 2015, CO2 emission should be no more than 130g/km, 2020 no more than 95g/km. SJTU-- Shanghai DME Bus Demo: Recent Progress DME4, Stockholm, 6-9 September 2010

9 Vehicle energy shortage in 2020 Saving 75(30%) Alternative 50(20%) Demand 125(50%) Mass production alternative fuel is urgent need.

10 Contents 1. Background 2. Progress of Shanghai DME Bus Demonstration 3. New technology of DME engine in SJTU 4. Research of material compatibility for DMEV 5. DMEV standards in China 6. Conclusions

11 Brief Results 1 Set up a fleet consists of 10 DME vehicles 2 Building a DMEV fueling station 3 Commercial operation more than 220,000 km 4 Excellent experience accumulation on DMEV commercial operation smoke free, energy consumption similar with diesel vehicle, no obviously technical troubles.

12 Progress of Shanghai DME Bus Demonstration Three stages of the demo fleet running for the safety: 1 One DMEV trial running in campus of SJTU check the vehicle performance. 2 Two DMEV trial running in NO. 147 Shanghai Bus Line but with sand in the vehicle safety assessment. 3 DMEV commercial vehicles quantities increases gradually in NO.147 Bus in Shanghai( ).

13 SJTU-- Shanghai DME Bus Demo: Recent Progress DME4, Stockholm, 6-9 September 2010

14 二甲醚示范汽车 SJTU-- Shanghai DME Bus Demo: Recent Progress DME4, Stockholm, 6-9 September 2010

15 SJTU-- Shanghai DME Bus Demo: Recent Progress DME4, Stockholm, 6-9 September 2010

16 SJTU-- Shanghai DME Bus Demo: Recent Progress DME4, Stockholm, 6-9 September 2010

17 SJTU-- Shanghai DME Bus Demo: Recent Progress DME4, Stockholm, 6-9 September 2010

18 Contents 1. Background 2. Progress of Shanghai DME Bus Demonstration 3. New technology of DME engine in SJTU 4. Research of material compatibility for DMEV 5. DMEV standards in China 6. Conclusions

19 New technology of DME engine in SJTU 1 R&D of Euro.IV DME engine( 863 project fund by MOST) 2 Explore the new technology of Euro.V DME engine 3 Making progress in DME engine online reforming and DME de-nox 4 DME LTC technology (NOx free combustion)

20 ESC & ELR Results Euro.IV Item Unit Reg. Value Result CO g/(kw h) HC g/(kw h) NO X g/(kw h) PM g/(kw h) Smoke (m -1 )

21 ETC Results Euro.IV Item Unit Reg. value Results CO g/(kw h) THC g/(kw h) CH 4 g/(kw h) NO X g/(kw h) PM g/(kw h)

22 Technic Route of DME Engine Fit Euro.V High pressure EGR before gas tuobine Delay fuel supply angle to 5 CA BTDC EGR two-stage intercooler

23 Euro V DME engine ESC Results

24 DME Online de-nox Technology by Catalyst NOx conversion ratio [%] NO2 NO NOx conversion ratio [%] % O2 7.5% O2 10% O T [ O C T [ O C] NO X conversion with NO/NO 2 as NO X source Effect of oxygen inlet concentration on NOx conversion NOx source effects the de-nox results; Temperature and O 2 content are key factors influence de-nox.

25 LTC Tech Based on DME Reform b e [g/kw h] r / mi n, 40Nm, EGR 2000r / mi n, 70Nm, EGR 2000r / mi n, 75Nm, EGR H 2 flowrate [m 3 /h] (DME premixed 0.23m 3 /h) b e [g/kw h] Tor que [N/m] 2000 r/min without EGR 50% EGR R-EGR High ratio EGR can decrease NOx emission greatly; Reform can obtain rich H 2 gas to improve engine efficiency.

26 Contents 1. Background 2. Progress of Shanghai DME Bus Demonstration 3. New technology of DME engine in SJTU 4. Research of material compatibility for DMEV 5. DMEV standards in China 6. Conclusions

27 Research of material compatibility for DMEV 1. Methanol and water affect little on the compatibility of DME sealing materials. 2. Material compatibility for DMEV should check the influence of llubricant additives. 3. The time effect of the sealing materials for vehicle used DME is much different with other fuels. 4. Suitable formulated EPDM can fit the technical requirement of DME vehicle.

28 Contents 1. Background 2. Progress of Shanghai DME Bus Demonstration 3. New technology of DME engine in SJTU 4. Research of material compatibility for DMEV 5. DMEV standards in China 6. Conclusions

29 DMEV standard system in China 1 national standard will be issued: DME Fuel for Vehicle 3 industry standards issued: DME engine standard; DMEV parts technical specifications(qc/t ); DMEV parts install standard(qc/t ); Fast plug in port for DME refueling(qc/t ). 3 industry standards will be issued recently: Tech. rules of dedicated DME engine; Finalize design tech rule of DMEV; Integration valve for DMEV. 14 local or company standards in Shanghai.(Vehicle, parts and refueling station)

30 Contents 1. Background 2. Progress of Shanghai DME Bus Demonstration 3. New technology of DME engine in SJTU 4. Research of material compatibility for DMEV 5. DMEV standards in China 6. Conclusions

31 Conclusions DMEV demo is proceeding smoothly in Shanghai. DME is a promising vehicle fuel in the near future. As a kind of new fuel, there still has many technical and standard work to be done. Large amount data is still needed to be accumulated by demonstration to consummate DMEV technology.

32 Thanks! School of ME,SJTU z huang@sjtu.edu.cn zhangwg@sjtu.edu.cn wugao.zhang@uq.edu.au