Artikel (20)
Abstrak Penelitian ini dilakukan untuk menguji karakteristik perpindahan panas dan faktor gesekan pada penukar kalor pipa konsentrik saluran annular dengan sisipan pita terpilin klasik dan sisipan pita terpilin berlubang. Seksi uji berupa penukar kalor pipa konsentrik satu laluan dengan pipa dalam ...
MECHANICAL; Vol. 3 No. 1 (2012) | 2012
Abstrak SCR atau Secondary Cabin Roof merupakan aksesoris tambahan pada mobil berupa atap kabin sekunder yang dipasang diatas atap utama mobil. SCR ini dirancang dengan maksud mengurangi panas yang masuk ke dalam kabin karena sinar matahari ketika sebuah mobil sedang diparkir ditempat terbuka ata...
MECHANICAL; Vol. 3 No. 1 (2012) | 2012
Abstract Empty Fruit Bunch (EFB) fiber reinforced polyester composites were prepared using simple technique namely hand lay-up. Alkali treatments were used to enhance the hydrophobicity of the fiber. Lignin and cellulose content of EFB were analysed through chemical composition analysis. The mechan...
MECHANICAL; Vol. 3 No. 1 (2012) | 2012
Abstrak Tulisan ini membahas studi awal interaksi antara pekerja dengan mesin cetak genteng dalam rangka rancang bangun kembali sistem cetakan genteng yang ergonomik bagi industri genteng di Pringsewu. Tujuan studi ini adalah untuk mendapatkan data awal mengenai kondisi fisik pekerja setelah mengop...
MECHANICAL; Vol. 3 No. 1 (2012) | 2012
Abstrak Prestrain adalah suatu gejala deformasi plastis yang terjadi pada material logam, dimana material yang mengalami beban tarik dengan besar tegangan yang terjadi di atas tegangan luluh (syield) dari material logam tersebut. Efek prestrain akan meningkatkan tegangan luluh dan tegangan tarik ma...
MECHANICAL; Vol. 3 No. 1 (2012) | 2012
Abstract Low pressure die casting is process to make the axi-simmetric product such as cylinder head, piston, brake drum and etc. The process is injected the molten metal with high speeds and pressure into a metallic die. The low pressure die casting process has some advantages as a low-cost and hi...
MECHANICAL; Vol. 3 No. 1 (2012) | 2012
Abstract Tests with the fluid flow pattern visualization kerosene (kerosene)-water through a pipe with a T-junction has been performed at the Laboratory of Fluid Mechanics, Faculty of Engineering, Gadjah Mada University. Tests performed on the test section of T-Junction with an angle of 90 ˚ and 2...
MECHANICAL; Vol. 3 No. 1 (2012) | 2012
Abstract Convective roof cooling operates using water as refrigerant. It consists in convection process pass through over the roof, thus decreasing the roof temperature. This system has a great potential to provide thermal comfort in places where roof temperature is low. However, thermal efficiency...
MECHANICAL; Vol. 3 No. 1 (2012) | 2012
Abstract The objective of the research is to investigate the effect of composition ratio of polyester as matrix and Aleurites moluccana willd particles on mechanical properties (hardness,flexure strength and tensile strength) of composite.This experimental research used Aleurites molucc...
MECHANICAL; Vol. 3 No. 1 (2012) | 2012
AbstractType of refrigerant the most recognized and the most used today in the vapor compression cycle is R-12 refrigerant (halocarbon group), which is technically quite good. The refrigerant also has low toxicity and low flammable. But, in the mid 1970’s known that chlorine has contained in the...
MECHANICAL; Vol. 3 No. 1 (2012) | 2012