Cleanroom in the pharmaceutical industry is needed to eliminate a wide range of contamination, due to the room around the building materials, machinery equipment production, human and others generate millions of particles that can interfere with the quality of manufactured drugs. Cleanroom in the pharmaceutical industry is based on the ISO 14644-1 standard that is in a class of E (100.000), which can be interpreted very clean conditioned room to awake from particles and microbial contamination. The number of particles in the E (100.000) class at the size of 0,5 µm limited number of 3520000 particles/m 3 were obtained from the results of the design of 446771,3769 particles/m 3 , for a particle size of 5 µm particle number 29000 particles/m 3 is obtained by 47760,7813 partikel /m 3 . Raw material weighing room temperature in the desain room 21 ºC and 40% RH, and the outside temperature is 32,72 ºC and 72,77% RH. The results obtained design cooling load is 17329,077 Watt, with velocity distribution of air in the airway of 0,118 m/s in air requirement of 99,615 l/s, so that the requirements for class E (100.000) according to ISO 14644-1 to the mixed flow of air velocity.
Hydroelectric Power Plants (PLTA) in Indonesia have been around since 1926, and are still operating today. The Indonesian government represented by PT. PLN (State Electricity Company) will continue to maintain, operate and maintain old hydropower plants. So far, the development and development of PLTMH in Indonesia still uses consultants / contractors and its manufacturing is from overseas, even components (spare parts) are also still dependent on the technology producers themselves, the majority of which are foreign countries. Imports cannot be avoided, this results in us being vulnerable to several things, fluctuations in foreign exchange rates, and dependence on foreign producers. But with the increasing understanding of national resilience, especially in terms of national industrial independence, several national companies began to carry out reconstruction and fabrication for hydroelectric power plants. This is encouraging the author to learn to know, understand, how to plan the main parts of the Kaplan Turbine which include: runner, shaft, spiral casing, stacker, draft tube. In this plan the author focuses on calculating the main dimensions of the Kaplan Turbine. From the results of the design and calculation, the appropriate type of turbine is Kaplan Turbine as an electric generator drive in Plumbungan PLTM with installed power of 1.2 MW, maximum head of 21.16 meters and water discharge requirement of 7.68 m3 / sec. Plumbungan PLTM installation consists of turbines, turbine supporting equipment, and turbine operation aids. The turbine installation component consists of: suction pipe (penstock), turbine house (spiral casing), runner, runner shaft, shaft support bearing and draft tube.
Leaf spring is a component that functions to receive dynamic load and provide comfort in driving. Leaf springs are commonly used small public service vehicles and small commercial vehicles are deteriorated mechanical properties prior to the age limit of leaf springs. To restore the mechanical properties of the spring there will be a heat treatment that includes heat treatment of cooling (quenching) .From Hardness Vickers hardness test results on steel leaf springs are associated with an increase of hardness, on the condition of normal leaf spring steel without heat treatment hardness obtained average price of 325 , on the condition of the leaf spring steel with heat treatment at a temperature of 800 0 C with cooling oil obtained average price of 380, on the condition of the leaf spring steel with heat treatment at a temperature of 800 0 C with air cooling average price obtained -average of 339, from the test results of metallographic condition microstructure on the leaf spring normally with no warm-up run into the matrix pearlitic and at the side there sulfide / impurities formed by sulfur, the results of tests metallographic condition of microstructure on the leaf spring that is experiencing warming with quenching oil in the form of a matrix martensitic and at the edges of experience decarburization , austenitic microstructure form, the results of tests metallographic condition of microstructure on the leaf spring is warming by cooling the air in the form of a matrix perlitic middle and at the edges of experience decarburization micro-structure in the form of ferrite-pearlite.
A tractor drive engine uses a production diesel engine owned by Company X that is intended to be researched on the effect of working hours that have been used for 3 years which will re-test the performance of the engine using a running test machine. Problems are limited to the analysis of the testing process and calculations that occur in the performance of the tractor drive engine. The analysis was carried out using the theory of fuel motor energy conservation to obtain results in accordance with the specifications regarding the calculation of the test results of the tractor drive engine.The analytical method used to process existing data which includes efficiency, power, torque and generated rotation. The results of the analysis and discussion can prove that the ability of the performance of the agricultural tractor driving machine to the working hours of the machine is still feasible to be used in accordance with the existing specifications so that it can be further developed in the form of mass products to meet agricultural needs.
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