Development of energy especially alternative energy and renewables continue to be encouraged, one of which is becoming the trend of the world today is focused towards the development of solar energy. The optimum angle of tilt of the photovoltaic panel is one of the deciding factor against the acceptance of the amount of solar radiation in the amount of the maximum, so that will affect the power output of a photovoltaic panel. Method of calculation of the Altitude angle is a way to find out the optimum height of the positions of the Sun, and these factors influence the position of the slope of the surface of the panel sector in the region, so by knowing the position of the right angle of the Sun will be able to obtain the maximum amount of radiation against photovoltaic panels. Adjustment of the angle of the slope against the monthly solar panels in the region of Meulaboh is affected by the angle of altitude. January and March, the optimum angle value starts from 35,54 to 12,39. April does not occur, because of the angle position of the panel surface horizontal is same. May to December, the orientation of the panel turned south-facing surface of the panel with face down which is characterized by a negative notation.
The spread of the Coronavirus Disease (COVID-19) outbreak in all parts of the world is increasing, including in Indonesia, a virus that is easily transmitted and spreads through close contact and droplets by touching hands with other people or with objects that have been exposed to COVID-19, one of the reasons for this, reventing the spread of COVID 19 by washing hands frequently with soap. Hand washing tools have been developed, generally still using direct touch to the water tap and soap dish, the Touchless Hand Washer (THW) touchless hand washing tool is specially designed and manufactured in accordance with the COVID-19 pandemic conditions without touching with hands directly on the water tap and a soap holder with a footrest system, making it more practical, hygienic and not directly contaminated with previous Touchless Hand Washer users which could cause COVID-19 transmission from previous users. Touchless Hand Washer (THW) is designed with a pyramid-shaped frame that will support the water toren that does not harm or the water toren falls for Touchless Hand Washe users, with a THW tool height of 120 cm, top width 70 x 70 cm and bottom width of 90 x 90 cm. Keywords—Hand-washing tool, COVID-19, washing hands, touchless hand washer
Potensi limbah Tandan Kosong Kelapa Sawit (TKKS) yang pemanfaatannya kurang maksimal, sehingga terbuang secara sia-sia akan dapat tertanggulangi dengan inovasi mengubah menjadi produk yang bermanfaat. Komposit yang terbentuk dua fasa yaitu fasa metriks dan fasa penguat untuk menghasilkan rekayasa material yang baru. Resin merupakan salah satu sebagai matriks dan tandan kosong kelapa sawit adalah sebagai penguat. Penelitian ini adalah Pembuatan Papan Komposit dengan ukuran 100 x 300 mm untuk dapat mengetahui hasil dari pada campuran resin dan tandan kosong kelapa sawit, Papan serat komposit terbentuk dengan kondisi getas dan kaku. Dalam Proses pembuatan komposit terdapat, penuangan secara langsung, tanpa pemampatan atau tekanan.
Coconut plantations reach more than 106 hectares of the 831 thousand hectares of plantation areas in Aceh. Meanwhile, the total production reached 63 thousand tons with a productivity level of 818 kilograms per hectare. Most of it is still traditionally produced to produce coconut milk from these coconuts. The design of the coconut milk production machine has been carried out and before it is used a vibration test must be carried out to determine the operational feasibility of the machine. This study aims to measure the vibration level of the centrifugal tube frame for the coconut milk production machine with a centrifugal system capacity of 10 L / hour. The test was carried out at three levels of motor rotation, namely 1000 rpm, 1500 rpm and 2000 rpm with repeated measurements carried out five times at each motor rotation speed, the measurement results were compared with ISO 2631-1 standards and Kepmenaker number KEP-51 / MEN / I999. The results showed that testing the vibration of a coconut milk production machine with a centrifugal system with a capacity of 10 L / hour stated that it was safe if it was operated for less than 4 hours for a motor rotating speed of 1000 rpm, for a motor rotating speed of 1500 rpm it was safe to use if it was operated for less than 3 hours, while for rotation 2000 rpm motor is good and comfortable to use for less than 2 hours. Keywords— centrifugal tube, coconut squeezer, SO 2631-1, KEP–51/MEN/I999
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