Palm Oil Factory Energy consists of steam and electricity. To increase the performance, energy will to be audited. Electrical measurements are carried out at the power house, panels at each station and some electric motors. Measurement in the main panel uses a power quality analyzer that can measure power, power factor, harmonics, unbalance and other electrical parameters. For measurement of mechanical equipment with steam energy such as boilers and turbines using temperature measuring devices with infrared thermal imaging tools FLIR brand. The quality of electric power with a total harmonic of 5.12% and individual harmonics of 2.78%. Voltage and current unbalance are 0.09% and 0.15%. Voltage drop is equal to 3 volts. The use of electricity utilities is 22.81 kW / ton FFB. The factory has cos phi of 0.84 but requires automatic power factor correction. The efficiency of boilers is 64.19% with the biggest losses being dry flue gas of 20.19% and oyher boiler  of 67.82% with the biggest losses being dry flue gas of 16.45%.

Porang (Amorphophallus Muelleri Blume) contain quite high glucomannan (15-64% dry basis). Porang  are used as raw materials for food and industry since 1,000 years ago in Japan and China. The high content of glucomannan in porang makes this plant much sought after, especially in the food and health industries. Porang plants need to be researched so that they can be intercropped for oil palm and rubber. Analysis of drainage, texture, coarse material, soil depth, peat thickness and peat maturity was carried out using the borring method and field soil physics tests were carried out. Observation of the level of slope and erosion hazard using a clinometer. And for observations of puddles, surface rocks and rock outcrops with a percentage (%) visualization of the rock volume in the field. Meanwhile, the value of CEC, base saturation, and organic C was obtained from soil analysis resulting from borring sampling in the laboratory. Based on observations and analysis, gardens A, B and C were obtained according to the suitability of the S3 land. To increase the added value, porang is produced in the form of chips. The factory construction investment requires working capital funds and an investment of IDR 3,176,308,600. Investment analysis with tuber seeds showed a positive NPV of Rp. 14,021,379,827.63, IRR >20% and a payback period of 2 years, while the construction of a factory with frog seed cultivation showed a positive NPV of Rp. 3,976,301,962.35, IRR >20%. and Payback Period 4 years 2 months. Based on the two alternatives above, it can be concluded that the investment in building a factory in A plantation by cultivating tuber seeds is better than frog seeds which are shown to have better NPV and Payback Period values

– The research on CPO as an insulator to replace mineral oil. The CPO was heated using vacuum distillation technology. The parameters used are the temperature of 110°C to 170°C with the difference of 10°C and the vacuum pressure of 0 mmHg to-600 mmHg with the difference of 200 mmHg. The highest breakdown voltage measurement of 49 kV (170°C-600 mmHg), the lowest viscosity is 20 mPas (170°C-600 mmHg), the lowest water content was obtained at 30 (160°C-400 mmHg). The vacuum pressure and temperature rise causes the high breakdown voltage and viscosity are high and the water content is low. The relationship between vacuum pressure and breakdown voltage is y = 5.8 x + 7 with R2 of 0.9397, the viscosity is y = -2x + 35.67 with R2 of 0.9231 and the water content is y=-7.25x2 + 22.95x + 106.75 with R2 of 0.9945.

The transformer that functions to increase/decrease the voltage is heated due to the flow of electric current. The heat must be removed so as not to damage the winding. The heat dissipation method uses a liquid to propagate heat into the air. Currently, mineral oil is generally used, but to improve the environment and be more sustainable, it can be replaced with palm oil (CPO). The heat transfer palm oil of the transformer can be calculated.  The heat propagates from the heat source through the paper to the CPO, then to the iron casing of the transformer and then to the free air. In order for CPO to cool properly, CPO needs to be cooled using forced air so that the heat transfer process is optimal. Based on the assumption of transformer parameters and CPO parameters such as heat capacity, conductivity, density, viscosity and others, it is obtained that the flow properties of CPO are laminar with Reynolds number of 293. Pradle number of 173.99 and Prandtl number of 30, then the convection coefficient CPO heat is 509.4 W/m2.oC. Based on the temperature in the coil of 80oC, the temperature calculation on the coil wrapping paper is 72oC, the temperature on the inside wall of the casing is 54.17oC and the temperature on the outer wall of the transformer or in the free air is 53.53oC so that it is still below the standard or acceptable. This shows that a 5,000 Watt heat source with a transformer casing length and width of 0.5 meters and a total radiator pipe length of 10 meters can reduce heat in the transformer. The comparison of the outside temperature in the air compared to the standard is 53.5oC/60oC or 89.2%.

Abstrak Porang digunakan sebagai bahan baku makanan dan industri sejak 1.000 tahun yang lalu di Jepang dan China. Kandungan glukomanan yang tinggi pada porang membuat tanaman ini banyak diminati terutama dalam industri makanan dan kesehatan. Tanaman porang perlu diteliti agar dapat ditumpangsarikan untuk kelapa sawit dan karet. Analisis drainase, tekstur, material kasar, kedalaman tanah, ketebalan gambut dan kematangan gambut dilakukan dengan metode bor. Pengamatan tingkat kemiringan lereng dan bahaya erosi menggunakan klinometer. Pengamatan genangan air, batuan permukaan dan singkapan batuan dengan visualisasi persentase (%) volume batuan di lapangan. Sedangkan nilai KTK, kejenuhan basa, dan C organik diperoleh dari analisis tanah hasil borring sampling di laboratorium. Berdasarkan pengamatan dan analisis diperoleh kebun A, B dan C sesuai dengan kesesuaian lahan S3. Untuk meningkatkan nilai tambah, porang diproduksi dalam bentuk keripik. Investasi pembangunan pabrik tersebut membutuhkan dana modal kerja dan investasi sebesar Rp 3.176.308.600. Analisis investasi dengan bibit umbi menunjukkan NPV positif sebesar Rp. 14.021.379.827.63, IRR >20% dan payback period 2 tahun. Kata kunci : Porang, Kelapa Sawit, Karet, Chip porang, Tumpang sari     Abstract   Porang  are used as raw materials for food and industry since 1,000 years ago in Japan and China. The high content of glucomannan in porang makes this plant much sought after, especially in the food and health industries. Porang plants need to be researched so that they can be intercropped for oil palm and rubber. Analysis of drainage, texture, coarse material, soil depth, peat thickness and peat maturity was carried out using the borring method.. Observation of the level of slope and erosion hazard using a clinometer. The observations of puddles, surface rocks and rock outcrops with a percentage (%) visualization of the rock volume in the field. Meanwhile, the value of CEC, base saturation, and organic C was obtained from soil analysis resulting from borring sampling in the laboratory. Based on observations and analysis, gardens A, B and C were obtained according to the suitability of the S3 land. To increase the added value, porang is produced in the form of chips. The factory construction investment requires working capital funds and an investment of IDR 3,176,308,600. Investment analysis with tuber seeds showed a positive NPV of Rp. 14,021,379,827.63, IRR >20% and a payback period of 2 years.   Keywords: Porang, Palm Oil, Rubber, Chips, Intercropping