March 20, 2018

Revised Table Comparing Russian, German, French & Japanese Submarine Diesels

Since Submarine Matters published Table Comparing Russian, German, French & Japanese Submarine Diesels, of March 15, 2018, Anonymous has done further very useful research and compiled new sets of data, figures and footnotes. These are marked in Blue with submarine diesels bolded.

Table 1 Specifications of modern diesels for submarine (as at March 20, 2018)

Country


Russia
Germany
France
Japan
Make


UDMZ [11]
MTU
MAN Diesel & Turbo
KAWASAKI
Type

DM-185
V12M [11]
DM-185
V12G
[11]
DM-185
V12S
[12]
16V396SE84
12V4000U83
8PA4V200SM
12PAV200SMDS
12V25/25SB
12V25/31S
Application


Surface
Marine
Genera
t
or
Sub-marine
Sub
Sub
Sub
Sub
Sub
Sub
No. of cylinder


12
12
12
16
12
6
12
12
12
Bore

mm
185
185
185
165
170
200
200
250
250
Stroke

mm
215
215
215
185
190
210
210
250
310
Piston speed
[1]
m/s
13.6
10.7
10.7
11.1
11.4
9.1
9.1
10.0
12.4
Rated speed
[2]
rpm
1900
1500
1500
1800
1800
1300
1300
1200
1200
Mechanical output
[3]
kW
2416
-
-
1200
1300
700
1330
2500
3100
Cylinder capacity
[4]
l
5.76
5.76
5.76
3.95
4.31
6.59
6.59
12.2
15.2
Specific mechanical output[5]
kW/l
21.6
-
-
18.9
25.1
17.6
16.8
16.9
16.9
Electrical output
[6]
kW

-
1907
1525
960
1040
560
1064
2000
2480
Specific electrical output per [13]
kW/l
-
27.5
22.0
15.1
20.1
14.1
13.44
13.5
13.5
Electrical output
(snorting) [7]
kW

-
-
1373
864
936
504
957
1800
2232

[1] Piston speed = Stroke x Rated speed / 30000

[2] Based on product catalog or data from this blog.

[3] [9] page 3,” Table 1 Performance and emission targets DM-185 Engine Family”. Others are based on product catalog or data from this blog.

[4] Cylinder capacity = (Bore/2)^2 x Stroke x 3.14 / 1000

[5] Specific mechanical output = Mechanical output per unit capacity = Mechanical output / (Cylinder capacity x No. of cylinder)

[6] Electrical output of DM-185V12S = Electrical output of DM-185V12G x 0.8. Electrical output of DM-185V12G is in [11]. For others, Electrical output = Mechanical output x 0.8 (= power factor)

[7] Electrical output at snorting = Electrical output x 0.9 (= assumed figure based on [8]).

[8] SUBMARINE POWER AND PROPULSION: BALANCING THE ENERGY ELEMENTS, 
January 2012, page2 John Buckingham.

[9]http://souztrade.ru/dizelnye-dvigateli-dm-185/


[11] Ibid, page3, [9] page 3,” Table 1 Performance and emission targets DM-185 Engine Family”.

[12] Hypothetical DM-185 diesel generator for submarine applications. All data of DM-185 12VS are estimation.

[13] Specific electrical output =Electrical output per unit capacity = Electrical output / (Cylinder capacity x No. of cylinder)

According to UDMZ and FEV GmbH [9,10], potential users of diesel engines DM-185 are i) enterprises of locomotive construction, ii) private transport operators, iii) leading industrial enterprises of various sectors of the economy, iv) shipbuilding companies, v) manufacturers of heavy quarry self-propelled machinery, and vi) manufacturers of diesel-generator stations.
Specifications of DM-185s are as follows:

MORE DETAILED DM-185 SPECIFICATIONS

• Engine type: L6 / V12 / V16 / V20
• Rated power: 750-1400 / 1500-2400 / 2600-3750 / 3200-4000 kW
• The diameter of the cylinder: 185 mm
• Piston stroke: 215 mm
• Cylinder power: up to 240 kW
• Cylinder capacity: 5.776 liters
• Piston speed: 13.6 m /s
• Rated speed: 1500, 1800, 1900 rpm
• Common Rail fuel equipment and the possibility of installing individual fuel injection pumps
• Specific fuel consumption: not more than 200 g / (kWh)
• Specific oil consumption: not more than 0.4 g / (kWh)
• Emissions of harmful substances: EU IIIA; IMO2 (+); Tier 3
• NOx emissions: no more than 7.2; 8.4; 6.4 g / kW * h
• Emissions of particulate matter: not more than 0.2 g / kW * h
• Warranty period: 1-3 years
• Service life: 25-30 years

DIESELS USED IN KILO SUBMARINES

Two 4-2DL42M diesels are used for Kilo submarines Project 636.1  They are L6 type diesels with 300mm of bore and 360mm of stroke. Using PG-142 generators they generate 1000kW of electrical output at 700 rpm. For sources see Revised Table footnotes 3, 4, 5 above.



Two 7-2D42M diesels are used for Kilo submarines Project 636.3They are L6 type diesels with 300mm of bore and 360mm of stroke. Using PG-167 generators they generate 1500kW of electrical output at 750 rpm. For sources see Revised Table footnotes 3, 4, 5 above.

ANONYMOUS'S COMMENT

As latest diesel, common rail fuel injection system, whose evaluation is yet established, is adopted for DM-185 and 12V4000 U83E. Output of DM-185 is not bad, but evaluation of vibration is not reported. If DM-185 shows good anti-vibration performance, it is very strong competitor of Germany or French diesels. Electrical output of DM-185 for submarine is 40-50% higher than those of German and French counterparts.

PETE COMMENT 

As indicated on the Table, Japanese Kawasaki diesels have, by far, the highest mechanical and electrical outputs. An arrangement of four of these Kawasaki diesels would be more suitable for Australia's Future Submarine (SEA 1000) than a problematic six to eight lower powered MTU or MAN diesels.

Anonymous

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