AFR yang dihasilkan bahan bakar 90 Premium + 10 Super fuel

Sehingga: ��� = ṁ � ṁ � ��� = 10,087 ����� 1,056 ����� ��� = 9,55 Tabel 4.20 AFR hasil pengujian dengan bahan bakar 95 premium + 5 super fuel Bahan Bakar Parameter Performansi Jumlah lampu 100 Watt 2 4 6 8 10 12 95 premium + 5 super fuel n rpm 4343 4439 4525 4632 4734 4437,5 P Watt 200,20 401,01 602,45 801,06 1002,00 962,46 ṁa kgjam 10,087 10,087 10,087 10,087 10,087 10,087 ṁf kgjam 0,672 0,78 0,9 0,852 1,02 1,056 AFR 15,01 12,93 11,21 11,84 9,89 9,55 4.6.3 AFR yang dihasilkan bahan bakar 90 Premium + 10 Super fuel • P = 200,12 watt = 0,2001 kW ⇒ n= 4362,5rpm ṁf = 0,708 kgjam V d : 95 × 10 −6 � 3 V c : 10 × 10 −6 � 3 P i = 85 kPa R = 0,287 kJkg.K T i = 333 K � � = � � � � + � � �. � � � � = 8595 × 10 −6 + 10 × 10 −6 0,287 × 333 � � = 0,0000934 �� ��� − ����� Universitas Sumatera Utara Maka: ṁ � = �0,0000934 �� ��� − ������ 1 ��� � 3600 ��� 60 ��� � � 1 ����� 2 ��� � ṁ � = 0,002802 ����� ṁ � = 10,087 ����� Sehingga: ��� = ṁ � ṁ � ��� = 10,087 ����� 0,708 ����� ��� = 14,25 • P = 400,45 watt = 0,4005 kW ⇒ n= 4432rpm ṁf = 0,804 kgjam V d : 95 × 10 −6 � 3 V c : 10 × 10 −6 � 3 P i = 85 kPa R = 0,287 kJkg.K T i = 333 K � � = � � � � + � � �. � � � � = 8595 × 10 −6 + 10 × 10 −6 0,287 × 333 � � = 0,0000934 �� ��� − ����� Maka: ṁ � = �0,0000934 �� ��� − ������ 1 ��� � 3600 ��� 60 ��� � � 1 ����� 2 ��� � ṁ � = 0,002802 ����� ṁ � = 10,087 ����� Universitas Sumatera Utara Sehingga: ��� = ṁ � ṁ � ��� = 10,087 ����� 0,804 ����� ��� = 12,55 • P = 601,29 watt = 0,6013 kW ⇒ n= 4525 rpm ṁf = 0,924 kgjam V d : 95 × 10 −6 � 3 V c : 10 × 10 −6 � 3 P i = 85 kPa R = 0,287 kJkg.K T i = 333 K � � = � � � � + � � �. � � � � = 8595 × 10 −6 + 10 × 10 −6 0,287 × 333 � � = 0,0000934 �� ��� − ����� Maka: ṁ � = �0,0000934 �� ��� − ������ 1 ��� � 3600 ��� 60 ��� � � 1 ����� 2 ��� � ṁ � = 0,002802 ����� ṁ � = 10,087 ����� Sehingga: ��� = ṁ � ṁ � ��� = 10,087 ����� 0,924 ����� ��� = 10,92 Universitas Sumatera Utara • P = 800,45 watt = 0,8005 kW ⇒ n= 4585 rpm ṁf = 0,888 kgjam V c : 10 × 10 −6 � 3 P i = 85 kPa R = 0,287 kJkg.K T i = 333 K � � = � � � � + � � �. � � � � = 8595 × 10 −6 + 10 × 10 −6 0,287 × 333 � � = 0,0000934 �� ��� − ����� Maka: ṁ � = �0,0000934 �� ��� − ������ 1 ��� � 3600 ��� 60 ��� � � 1 ����� 2 ��� � ṁ � = 0,002802 ����� ṁ � = 10,087 ����� Sehingga: ��� = ṁ � ṁ � ��� = 10,087 ����� 0,888 ����� ��� = 11,36 • P = 1001 watt = 1,001 kW ⇒ n= 1064 rpm ṁf = 1,05 kgjam V d : 95 × 10 −6 � 3 V c : 10 × 10 −6 � 3 P i = 85 kPa R = 0,287 kJkg.K T i = 333 K Universitas Sumatera Utara � � = � � � � + � � �. � � � � = 8595 × 10 −6 + 10 × 10 −6 0,287 × 333 � � = 0,0000934 �� ��� − ����� Maka: ṁ � = �0,0000934 �� ��� − ������ 1 ��� � 3600 ��� 60 ��� � � 1 ����� 2 ��� � ṁ � = 0,002802 ����� ṁ � = 10,087 ����� Sehingga: ��� = ṁ � ṁ � ��� = 10,087 ����� 1,05 ����� ��� = 9,61 • P = 954,02 watt = 0,954 kW ⇒ n= 4359 rpm ṁf = 1,08 kgjam V d : 95 × 10 −6 � 3 V c : 10 × 10 −6 � 3 P i = 85 kPa R = 0,287 kJkg.K T i = 333 K � � = � � � � + � � �. � � � � = 8595 × 10 −6 + 10 × 10 −6 0,287 × 333 � � = 0,0000934 �� ��� − ����� Universitas Sumatera Utara Maka: ṁ � = �0,0000934 �� ��� − ������ 1 ��� � 3600 ��� 60 ��� � � 1 ����� 2 ��� � ṁ � = 0,002802 ����� ṁ � = 10,087 ����� Sehingga: ��� = ṁ � ṁ � ��� = 10,087 ����� 1,08 ����� ��� = 9,34 Tabel 4.21 AFR hasil pengujian dengan bahan bakar 90 premium + 10 super fuel Bahan Bakar Parameter Performansi Jumlah lampu 100 Watt 2 4 6 8 10 12 90 premium + 10 super fuel n rpm 4362,5 4432 4525 4585 1064 4359 P Watt 200,12 400,45 601,29 800,45 1001 954,02 ṁa kgjam 10,087 10,087 10,087 10,087 10,087 10,087 ṁf kgjam 0,708 0,804 0,924 0,888 1,05 1,08 AFR 14,25 12,55 10,92 11,36 9,61 9,34 4.6.4 AFR yang dihasilkan bahan bakar 85 Premium + 15 Super fuel