Efisiensi termal yang dihasilkan bahan bakar Premium 100
69 η
b
= 0,2004
0,612.43966.0,97 � 3600
η
b
= 0,02764 η
b
= 2,764
• P = 401,2 watt = 0,4012 kW
⇒
n= 4410 rpm ṁf = 0,708 kgjam
LHV = 43966 kjkg η
b
= �
�
ṁ
�
. ���.
η�
� 3600 η
b
= 0,4012
0,708.43966.0,97 � 3600
η
b
= 0,04784 η
b
= 4,784
• P = 603,7 watt = 0,6037 kW
⇒
n= 4510 rpm ṁf = 0,792 kgjam
LHV = 43966 kjkg η
b
= �
�
ṁ
�
. ���.
η�
� 3600 η
b
= 0,6037
0,792.43966.0,97 � 3600
η
b
= 0,06434 η
b
= 6,434
• P = 801,2 watt = 0,8012 kW
⇒
n= 4600 rpm ṁf = 0,864 kgjam
LHV = 43966 kjkg η
b
= �
�
ṁ
�
. ���.
η�
� 3600 η
b
= 0,8012
0,864.43966.0,97 � 3600
η
b
= 0,07828
70 η
b
= 7,828
• P = 1001 watt = 1,001 kW
⇒
n= 4690 rpm ṁf = 0,924 kgjam
LHV = 43966 kjkg η
b
= �
�
ṁ
�
. ���.
η�
� 3600 η
b
= 1,001
0,924.43966.0,97 � 3600
η
b
= 0,09147 η
b
= 9,147
• P = 1008 watt = 1,008 kW
⇒
n= 4560 rpm ṁf = 0,996 kgjam
LHV = 43966 kjkg η
b
= �
�
ṁ
�
. ���.
η�
� 3600 η
b
= 1,008
0,996.43966.0,97 � 3600
η
b
= 0,08543 η
b
= 8,543
Tabel 4.13 Efisiensi thermal hasil pengujian dengan bahan bakar premium 100 Bahan Bakar
Parameter Performansi
Jumlah lampu 100 Watt 2
4 6
8 10
12
Premium 100 n rpm
4330 4410
4510 4600
4690 4560
P Watt
200,4 401,2
603,7 801,2
1001 1008
LHV kJkg
43966 43966
43966 43966
43966 43966
ṁf kgjam 0,612
0,708 0,792
0,864 0,924
0,996 η
b
2,764 4,784
6,434 7,828
9,147 8,543
71
4.4.2 Efisiensi termal yang dihasilkan bahan bakar Premium 99 + serbuk pelepah kelapa sawit 1
• P = 200,8 watt = 0,2008 kW
⇒
n= 4360 rpm ṁf = 0,648 kgjam
LHV = 41466 kjkg η
b
= �
�
ṁ
�
. ���.
η�
� 3600 η
b
= 0,2008
0,648.41466.0,97 � 3600
η
b
= 0,02774 η
b
= 2,774 • P = 400,4 watt = 0,4004 kW
⇒
n= 4420 rpm ṁf = 0,744 kgjam
LHV = 41466 kjkg η
b
= �
�
ṁ
�
. ���.
η�
� 3600 η
b
= 0,4004
0,744.41466.0,97 � 3600
η
b
= 0,04817 η
b
= 4,817
• P = 602,4 watt = 0,6024 kW
⇒
n= 4530 rpm ṁf = 0,828 kgjam
LHV = 41466 kjkg η
b
= �
�
ṁ
�
. ���.
η�
� 3600 η
b
= 0,6024
0,828.41466.0,97 � 3600
η
b
= 0,06512 η
b
= 6,512
• P = 801,6 watt = 0,8016 kW
⇒
n= 4610 rpm ṁf = 0,9 kgjam
72 LHV = 41466 kjkg
η
b
= �
�
ṁ
�
. ���.
η�
� 3600 η
b
= 0,8016
0,9.41466.0,97 � 3600
η
b
= 0,07971 η
b
= 7,971
• P = 1002 watt = 1,002 kW
⇒
n= 4710 rpm ṁf = 0,96 kgjam
LHV = 41466 kjkg η
b
= �
�
ṁ
�
. ���.
η�
� 3600 η
b
= 1,002
0,96.41466.0,97 � 3600
η
b
= 0,09346 η
b
= 9,346 • P = 959,6 watt = 0,9596 kW
⇒
n= 4448 rpm ṁf = 1,032 kgjam
LHV = 41466 kjkg η
b
= �
�
ṁ
�
. ���.
η�
� 3600 η
b
= 0,9596
1,032.41466.0,97 � 3600
η
b
= 0,08322 η
b
= 8,322