Type of Hydroponics

   Hydroponic systems are distinguished by their being active or passive. In an active hydroponics system the nutrients are provided to the plants by making use of a pump while in a passive hydroponics system the passing of the nutrients to the plant depend upon the growing medium. However the passive Hydroponics system do not provide sufficient oxygen to the plant and hence the growth rate of the plants are not optimum. Hydroponic systems are also different on recovery and non recovery type. In recovery system the nutrients are recycled while in a non recovery system it is just the opposite. Here are some different types of hydroponics.   1. Ebb and flow system       Ebb and flow is one...

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Solar Collector for Water Heater

Suatu karunia yang sangat besar, Indonesia sebagai negara yang berada pada daerah katulistiwa, dapat memanfaatkan energi yang berasal dari matahari untuk berbagai keperluan hampir sepanjang waktu, salah satu diantaranya adalah untuk memanaskan cairan. Untuk itu dibutuhkan suatu peralatan yang berfungsi untuk mengumpulkan energi radiasi yang datang dari matahari, peralatan ini disebut kolektor surya. Pemanfaatan energi surya dengan menggunakan kolektor surya biasanya digunakan untuk pemanas air di rumah tangga yang kebutuhan air sehari-harinya hanya sekitar 10 sampai 30 liter saja. Namun, untuk memenuhi kebutuhan air panas sebanyak 100 liter/hari untuk usaha laundry dibutuhkan suatu rancangan kolektor surya yang baik. Rancangan kolektor surya...

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Unit Pembangkit Biogas

Full paper biogasBiogas Fix dome type CAD DesignBiogas Floating typ...

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Biogas

Kebutuhan energi dirasakan sangat meningkat saat sekarang ini. Sumber energi fosil yakni bahan bakar minyak telah dieksploitasi habis-habisan. Di daerah pedesaan beberapa negara berkembang biaya transportasi menjadi pembantas untuk distribusi bahan bakar fosil ini dan dalam berbagai hal telah banyak terjadi bahwa biaya produksi, harga, dan penggunaan sumber daya energi lebih banyak dipengaruhi oleh kebijaksanaan produksi nasional daripada kekuatan pasar yang ada. Sumber daya energi fosil yang tersedia di perut bumi semakin berkurang sedangkan jumlah penduduk bumi semakin bertambah. Oleh karena itu dalam mengantisipasi krisis energi, banyak negara termasuk Indonesia yang sudah memulai untuk mengembangkan energi terbarukan (renewable energy)...

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Type of Greenhouse

Greenhouses come in an array of styles, sizes, materials and colours so there is sure to be one to suit every garden and every gardener’s pocket. While many of these differences are largely a matter of cosmetic appeal or personal preference, a few can have a real bearing on making the all-important decision as to which one to buy. Greenhouses give you the opportunity to control the growing seasons for your plants. You can also grow plants that would normally not survive in your climate. Glass is the most traditional material for greenhouses, but they can be made of plastic or various types of acrylic surfaces as well. Greenhouses are available in several different styles, each of which meets different spatial, economic and planting needs.  Lean-To...

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Create Spring

  1. Click New (File>New) , click Part , OK .2. Click Option (Tools>Option…) , select Document Properties tab. Select Units , under Unit System select IPS (inch, pound, second) OK.3. Select Top Plane , from lower left menu select Normal To.  4. Click Sketch in Command Manager, click Circle . As you can see on upper right corner sketch icon appear indicate that you’re on sketch mode.5. Pick Origin point as starting point, drag to right hand side no need to be exact the size will define in later step. Press keyboard ESC to end circle sketch.Note: There is two type line generated by in sketching, the one with black line and blue line. Black line is line that fully defined and blue line is...

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Create a Simple Part in Solidworks

1. Click New (File>New) , click Part , OK.2. Click Option (Tools>Option…) , select Document Properties tab. Select Units , under Unit System select IPS (inch, pound, second) OK.3. Select Top Plane , from lower left menu select Normal To. 4. Click Sketch in Command Manager, click Rectangle. As you can see on upper right corner sketch icon appear indicate that you’re on sketch mode.5. Pick Origin point as starting point, drag to right hand side no need to be exact the size will define in later step. Press keyboard ESC to end rectangle sketch. Note: There is two type line generated by your sketching, the one with black line and blue line. Black line is line that fully defined and blue line is under defined.6....

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