SLIDE 7 16.02.2016 7
15
UNDERSTANDING THE ENERGY CONVERSION
16.02.2016
kW 2500
36,6 %
830
12,2 % 2478 36,3 % 59,7 % 763 11,2 % 161 2,4 % 91 1,3 %
6823
100,0 %
L/h kg/h
kg/kWh 100 % 656 564,16 0,226 75 % 510 438,60 0,234 50 % 372 319,92 0,256
kW Load
43539
6823 100 % 45000 Caterpillar 3516C (data from engine supplier) Engine load Fuel energy Fuel energy KJ/s (kW)
- Max. Specific Fuel value KJ/kg
Rated power Heat rejection to coolant Heat rejection to exhaust gas Heat rejection to charge air aftercooler Heat rejection to air from engine Heat rejection to air from generator Total effect Engine load Fuel consumption Engine load
NOx kg/year
Effekct Energy/24h Consumption kW kwh kg/kWh *3) kg/kg *1) USD/kg *2) USD/liter kg/liter KJ/kg NOx tax USD Fuel USD Total USD Engine < 200 rpm (Generator) 1250 30000 0,256 0,1000 2,40 0,86 43539 672 768
280 320 Engine 200-1000 rpm (Generator) 1250 30000 0,256 0,0530 2,40 0,60 0,86 43539 356 567 1 955 721 2 312 288 148 570 Engine 1000-1500 rpm (Generator) 1250 30000 0,256 0,0500 2,40 0,60 0,86 43539 336 384 1 955 721 2 292 105 140 160 Engine >1500 rpm (Generator) 1250 30000 0,256 0,0440 2,40 0,60 0,86 43539 296 018 1 955 721 2 251 739 123 341 Fuel fired heater (MGO) 1250 30000 0,091 0,0036 2,40 0,60 0,86 43539 8 609 695 198 703 807 3 587 Heat recovery 1250 30000
Nox Cost Fuel
*1)= kg Nox / kg fuel Engines (200-1000kW og >1500kW) before year 2000, Nox value increase 0,001 kg/kg *2)= USD/ kg. Nox (19,19NOK/8,00USD/NOK=2,40 USD/kg) *3)= Engine speciffic values to be used (e.g. 0.256 g/kWh) *4)= Spesiffic density MGO 0,86 kg/liter
16
FUEL SAVINGS
16.02.2016
Engine Installation 5xCaterpillar 3516C 12500 kW Average Engine load 2x50% 2500 Available Waste Energy effect @ 100% engine load 3200 kW Actual available Waste Energy effect @ 50% engine load 1250 kW Crew 120 Ballast Water capasity 5000 m3 Installed cooling effect 15000 kW Operational hours 8760 h Energy efficiency 0,256 kg/kwh Desity fuel 0,86 kg/liter
Effect kW Energy kWh Effect kW Energy kWh Effect kW Energy kWh Heating of accomodation
1 314 000 250 2 190 000
Cooling of accomodation
150 1 314 000 50 438 000
200 1 752 000 300 2 628 000 400 3 504 000
Sanitary Hot Water
25 219 000 45 394 200 50 438 000
Tank Heating
- Tank Washing
- De-Icing
- 1000
8 760 000
Ballast Water Treatment
- Pre-heating of engine at standstill
25 219 000 40 350 400 50 438 000
Total waste energy used
400 3 504 000 585 5 124 600 1750 10 950 000
Fuel Fired Energy
500 4 380 000
Available waste energy
850 665
Electricity production 10% efficiency
85 744 600 66,5 582 540
1 264 700 1 698 870 1 955 721
Total Fuel Consumption (Liter)
6 519 070 6 519 070 6 519 070
Total Fuel Saving
19 % 26 % 30 %
Avearage consumption/year Tropical Area Northern Area Artic Area
Offshore Vessel 120mx22m