Analisis Kehilangan Steam Dan Penurunan Temperatur Pada Jaringan Distribusi Steam Dari Pt. KDM Ke Pt. Kni

Analisa Aliran Massa Uap Pada Katup Kontrol Urea (Urea Globe Control Valve) Di Unit Produksi Urea Pabrik 1b Pt. Petrokimia Gresik

“…Dapat dilihat bahwasanya dari kehilangan uap tersebut terdapat faktor yang mempengaruhi. Menurut Yani dan Ristyohadi [11], kehilangan uap ini dapat disebabkan oleh laju perpindahan secara simultan yang terjadi pada jalur distribusi dan kondisi steam trap yang bocor (leaking).…”

Modeling Of Oil Flows In Langgak Field Pipeline

“…Energy transfer is the study of energy transfer in a material due to differences in temperature gradients. This energy transfer always occurs from a high temperature system to another system that has a lower temperature and stops after both systems reach the same temperature (Yani & Ristyohadi, 2017).…”

“…Conduction energy transfer is the transfer of energy to solid objects from high temperature regions to low temperature regions. Based on Fourrier, the flow velocity is proportional to the surface area through which energy and temperature differences are inversely proportional to the thickness of the wall passed (Yani & Ristyohadi, 2017).…”

“…The faster the fluid movement, the greater the rate of heat transfer of the convection. On the basis of a process of cooling a heat pipe which is blown by cold air, the process of convection energy transfer will occur through several stages, first heat energy will flow conduction from the surface of the solid object to the adjacent fluid layer particles, then this energy will be lowered away from solid body surface through a convection mechanism, where there are two processes that occur simultaneously, namely a combination of the effects of conduction in the fluid due to random movements between fluid particles that occur microscopically so that fluid particles that have higher energy will move some of their energy to the particles fluid that has a lower energy, as well as the presence of macroscopic fluid movements that will replace the fluid that has been heated around the surface of solid objects with cold fluid (Yani & Ristyohadi, 2017). The convection and Nusselt equations are written as follows (Bird, Stewart, & Lightfoot, 2002) The assumptions of congeal problems in the pipeline on the energy balance modeling are known, namely (1) the flow of oil flows in the z direction (Vz ≠ 0; Vr = 0), (2) Vb constant with z and r direction, (3) pipe slope is constant (no influence because the pipe position is relatively straight), (4) pipe thickness is constant (Tn = 0) with OD = 1.5mm, (5) wind direction follows z direction, (6) overall pipe material content is constant namely Carbon Steel, (7) the color of the overall #LGK015 pipeline is constant with black, (8) volume of fluid in the pipe = tube volume and (9) fitting in Zone C which divides the section is constant.…”