Efisiensi termal yang dihasilkan bahan bakar Premium 99 + serbuk pelepah kelapa sawit 1 Efisiensi termal yang dihasilkan bahan bakar Premium 97,5 + serbuk pelepah kelapa sawit 2,5

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 73 Tabel 4.14 Efisiensi thermal hasil pengujian dengan bahan bakar premium 99 + serbuk pelepah kelapa sawit 1 Bahan Bakar Parameter Performansi Jumlah lampu 100 Watt 2 4 6 8 10 12 Premium 99 + Serbuk 1 n rpm 4360 4420 4530 4610 4710 4448 P Watt 200,8 400,4 602,4 801,6 1002 959,6 LHV kJkg 41466 41466 41466 41466 41466 41466 ṁf kgjam 0,648 0,744 0,828 0,9 0,96 1,032 η b 2,774 4,817 6,512 7,971 9,346 8,322 4.4.3 Efisiensi termal yang dihasilkan bahan bakar Premium 97,5 + serbuk pelepah kelapa sawit 2,5 • P = 201,2 watt = 0,2012 kW ⇒ n= 4380 rpm ṁf = 0,672 kgjam LHV = 38525 kjkg η b = � � ṁ � . ���. η� � 3600 η b = 0,2012 0,672.38525.0,97 � 3600 η b = 0,02885 η b = 2,885 • P = 401,7 watt = 0,4017 kW ⇒ n= 4440 rpm ṁf = 0,768 kgjam LHV = 38525 kjkg η b = � � ṁ � . ���. η� � 3600 η b = 0,4017 0,768.38525.0,97 � 3600 η b = 0,05039 η b = 5,039 • P = 601,3 watt = 0,6013 kW ⇒ n= 4540 rpm 74 ṁf = 0,852 kgjam LHV = 38525 kjkg η b = � � ṁ � . ���. η� � 3600 η b = 0,6013 0,852.38525.0,97 � 3600 η b = 0,06799 η b = 6,799 • P = 802,5 watt = 0,8025 kW ⇒ n= 4630 rpm ṁf = 0,924 kgjam LHV = 38525 kjkg η b = � � ṁ � . ���. η� � 3600 η b = 0,8025 0,924.38525.0,97 � 3600 η b = 0,08367 η b = 8,367 • P = 1000 watt = 1,000 kW ⇒ n= 4730 rpm ṁf = 0,984 kgjam LHV = 38525 kjkg η b = � � ṁ � . ���. η� � 3600 η b = 1,000 0,984.38525.0,97 � 3600 η b = 0,09795 η b = 9,795 • P = 947,1 watt = 0,9471 kW ⇒ n= 4455 rpm ṁf = 1,056 kgjam LHV = 38525 kjkg 75 η b = � � ṁ � . ���. η� � 3600 η b = 0,9471 1,056.38525.0,97 � 3600 η b = 0,08640 η b = 8,64 Tabel 4.15 Efisiensi thermal hasil pengujian dengan bahan bakar premium 97,5 + serbuk pelepah kelapa sawit 2,5 Bahan Bakar Parameter Performansi Jumlah lampu 100 Watt 2 4 6 8 10 12 Premium 97,5 + Serbuk 2,5 n rpm 4380 4440 4540 4630 4730 4455 P Watt 201,2 401,7 601,3 802,5 1000 947,1 LHV kJkg 38525 38525 38525 38525 38525 38525 ṁf kgjam 0,672 0,768 0,852 0,924 0,984 1,056 η b 2,885 5,039 6,799 8,367 9,795 8,640 4.4.4 Efisiensi termal yang dihasilkan bahan bakar Premium 95 + serbuk pelepah kelapa sawit 5 • P = 202,1watt = 0,2021 kW ⇒ n= 4430 rpm ṁf = 0,696 kgjam LHV = 28525 kjkg η b = � � ṁ � . ���. η� � 3600 η b = 0,2021 0,696.28525.0,97 � 3600 η b = 0,03778 η b = 3,778 • P = 400,4 watt = 0,4004 kW ⇒ n= 4470 rpm ṁf = 0,792 kgjam LHV = 28525 kjkg 76 η b = � � ṁ � . ���. η� � 3600 η b = 0,4004 0,792.28525.0,97 � 3600 η b = 0,06579 η b = 6,579 • P = 602,5 watt = 0,6025 kW ⇒ n= 4570 rpm ṁf = 0,876 kgjam LHV = 28525 kjkg η b = � � ṁ � . ���. η� � 3600 η b = 0,6025 0,876.28525.0,97 � 3600 η b = 0,08949 η b = 8,949 • P = 800 watt = 0,800 kW ⇒ n= 4660 rpm ṁf = 0,948 kgjam LHV = 28525 kjkg η b = � � ṁ � . ���. η� � 3600 η b = 0,800 0,948.28525.0,97 � 3600 η b = 0,1098 η b = 10,98 • P = 1002 watt = 1,002 kW ⇒ n= 4760 rpm ṁf = 1,008 kgjam LHV = 28525 kjkg η b = � � ṁ � . ���. η� � 3600 η b = 1,002 1,008.28525.0,97 � 3600 η b = 0,1294