Vladimir Baks, Ilmars Dukulis, Aivars Birkavs Latvia University
Vladimir Baks, Ilmars Dukulis, Aivars Birkavs Latvia University
Vladimir Baks, Ilmars Dukulis, Aivars Birkavs Latvia University
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ENGINEERING FOR RURAL DEVELOPMENT Jelgava, 26.-27.05.2011.<br />
CO, ppm<br />
Fig. 2. CO and CO2 measurement results: D – diesel fuel, RO – rapeseed oil, ROE – enriched oil<br />
Comparing the amount of CO2 and CO in exhaust gases (Fig. 2), that affect each other, CO<br />
quantity using the enriched rapeseed oil was a little bit higher (what is correlating with a little bit less<br />
CO2) as for the conventional rapeseed oil. But in absolute numbers the amount of CO2 and CO was<br />
very close. Of course, both values are higher in comparison with diesel fuel.<br />
MP, ppm<br />
Fig. 3. MP and HCD measurement results: D – diesel fuel, RO – pure oil, ROE – enriched oil<br />
The data in Figure 3 show that the quantity of MP (mechanical particles) at 900 rpm and 1600<br />
rpm using diesel fuel was less than for both oils. At 2500 rpm the content of MP in emissions<br />
decreased about twice and it was practically equal (even a little less) with diesel fuel. The quantity of<br />
HCD (unburned hydrocarbons) at 900 rpm using diesel fuel was less than for both oils, but at 1600<br />
and 2500 rpm the content of HCD using the enriched rapeseed oil was correspondingly less by 8 %<br />
and 41 % than for diesel.<br />
NOX, ppm<br />
1600<br />
1400<br />
1200<br />
1000<br />
800<br />
600<br />
400<br />
200<br />
200<br />
180<br />
160<br />
140<br />
120<br />
100<br />
80<br />
60<br />
40<br />
20<br />
0<br />
0<br />
40<br />
35<br />
30<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
397<br />
10<br />
195<br />
1 110<br />
32<br />
115<br />
1 113<br />
26<br />
115<br />
542<br />
19<br />
114<br />
1 248<br />
34<br />
109<br />
1 479<br />
36<br />
97<br />
632<br />
17<br />
114<br />
732<br />
16<br />
900 1600 2500<br />
rpm<br />
D RO ROE<br />
136<br />
900 1600 2500<br />
rpm<br />
D RO ROE<br />
766<br />
900 1600 2500<br />
rpm<br />
D RO ROE<br />
17<br />
127<br />
Fig. 4. NOx and SO2 measurement results: D – diesel fuel, RO – rapeseed oil, ROE – enriched oil<br />
As it can be seen from Figure 4, at 900 and 1600 rpm for both oils the content of NOx was less<br />
than for diesel, but at 2500 rpm small increasing of NOx was observed – the difference between diesel<br />
fuel and pure rapeseed oil was 16 %, but between diesel fuel and the enriched oil – 11 %.<br />
242<br />
CO2, ppm<br />
HCD, ppm<br />
SO2, ppm<br />
25500<br />
25000<br />
24500<br />
24000<br />
23500<br />
23000<br />
22500<br />
22000<br />
21500<br />
21000<br />
550<br />
500<br />
450<br />
400<br />
350<br />
300<br />
250<br />
200<br />
150<br />
100<br />
50<br />
0<br />
0.25<br />
0.2<br />
0.15<br />
0.1<br />
0.05<br />
0<br />
275<br />
0.080<br />
24 112<br />
326<br />
0.005<br />
24 374<br />
335<br />
0.014<br />
24 046<br />
436<br />
0.020<br />
22 424<br />
378<br />
0.015<br />
23 204<br />
401<br />
0.016<br />
22 998<br />
512<br />
0.030<br />
23 895<br />
279<br />
900 1600 2500<br />
rpm<br />
D RO ROE<br />
0.220<br />
24 984<br />
900 1600 2500<br />
rpm<br />
D RO ROE<br />
300<br />
900 1600 2500<br />
rpm<br />
D RO ROE<br />
24 955<br />
0.154
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