Rancangan Ruang Bakar Turbin Gas

Turbin gas merupakan peralatan pembangkit tenaga, dimana tenaga tersebut didapat dari ekspansi gas berkecepatan tinggi dan kemudian mendorong sudu-sudu yang langsung menghasilkan gerak putar pada rotornya. putaran rotor nantinya akan dimanfaatkan utuk memutar generator listrik.

Komponen utama turbin gas adalah:
1. Kompresor: berfungsi untuk mengisap udara atmosfer dan mengkonfersikannya hingga pada tekanan tertentu.
2. Ruang Bakar: adalah tempat dimana terjadinya pencampuran udara yang dimanfaatkan kompresor dengan bahan bakar.
besarnya kalor yang masuk dalam ruang bakar dapat dihitung dengan persamaan:

3. Turbin: pada bagian ini merupakan bagian utama dari singleshaft gas turbin. pada bagian ini terjadi perubahan energi kinetik menjadi energi mekanis putar yang digunakan untuk menggerakkan kompresor aksial dan juga sebagai penggerak beban.

DOWNLOAD FILE RANCANGAN RUANG BAKAR TURBIN GAS (LENGKAP)

Comments

Uji Kinerja Alat Penyulingan Minyak Nilam

Minyak atsiri merupakan salah satu komoditas pertanian yang potensial untuk dikembangkan di Indonesia. Salah satu minyak atsiri Indonesia yang paling penting adalah minyak nilam. Nilai ekspor minyak nilam selalu meningkat, tahun 2001 mencapai US $ 52,97 juta atau 4,4 % nilai ekspor minyak atsiri Indonesia. Indonesia pemasok utama minyak nilam dunia (90 %). Sementara kebutuhan minyak nilam dunia berkisar 1.500 ton/tahun dengan pertumbuhan 5 %.

THE SCIENTIFIC METHOD

What is science? How is it different from other ways of thinking? and what are scientists like? How do they think and what do they mean when they talk about doing science? Science isn't just test tubes or strange apparatus. And it's not just frog dissections or names of plant species. Sciences is way of thinking, a vital, ever-growing way of looking at the world. It is a way of discovering how the world works a very particular way that uses a set of rules devised by scientists to help them also discover their own mistakes. Everyone knows how easy it is to make a mistake about the things you see or hear or perceive in any way. If you don't believe it, look at the two horizontal lines on the previous page. One looks like a two way arrow; the other has the arrow heads inverted. Which one do you think is longer (not including the arrow heads)? Now measure them both. Right: They are exactly the same length. Because it's so easy to go wrong in making observations and dra...

Jurnal: Production Inventory Models for Deteriorating Items with Stochastic Machine Unavailability Time, Lost Sales and Price-Dependent Demand

Abstract: The economic production quantity (EPQ) model is widely employed in reality and is also being intensively developed in the research area. This research tries to develop more realistic EPQ models for deteriorating items by considering stochastic machine unavailability time (uniformly and exponentially distributed) and price-dependent demand. Lost sales will occur when machine unavailability time is longer than the non production time. Since the closed form solution cannot be derived, we use Genetic Algorithm (GA) to solve the models. A numerical example and sensitivity analysis is shown to illustrate the models. The sensitivity analyses show that a management can use price policy to minimize the profit loss due to machine unavailability time under a price- dependent demand situation.

Jaroe10

Search This Blog