Oktimalia, AnggitaGinting, MaksiSyech, Riad2016-02-012016-02-012016-02-01wahyu sari yenihttp://repository.unri.ac.id/xmlui/handle/123456789/7875The “Major analysis of heat transfer has been investigated at Steam Power of Biodiesel industry PT. Ciliandra Perkasa, Dumai” by using a field survey. The survey is conducted by observing the flow rate, pressure and temperature in the steam power plant systems. The observations calculate the enthalpy, heat required to convert water into steam and steam values that go into effect on the power turbine electrical output. Calculation results obtained turned out great enthalpy economizer entering the greatest value is 2959.1 kJ/kg and the smallest one is 2950.2 kJ/kg, while the incoming enthalpy at most major turbine is 3350.8 kJ/kg and the smallest one is 3235.6 kJ/kg. The highest enthalpy output at cattle is 3344.3 kJ/kg and the smallest one is 3216.5 kJ/kg, while the highest enthalpy output in turbine is 3286.6 kJ/kg and the smallest one is 3214.4 Kj/kg. The largest heat required to convert the water into steam is the 12816.9 MJ/h, while the smallest one is 7401.7 MJ/h. A greatest value that goes to the turbine steam is 0.00867 kg/kWh, while the smallest one is 0.00832 kg/kWh and the greatest power is 2.009 MW, while the smallest one is 1.766 MWenHeat TransferPower PlantThe Biodiesel Industrystudent Paper Post Degree