PENERAPAN TEKNOLOGI TEPAT GUNA PEMBANGKIT LISRIK HYBRID PHOTOVOLTAIC DAN TURBIN ANGIN MODEL HORIZONTAL MENGGUNAKAN SENSOR PZEM 004T KONTROL BERBASIS DATA LONGGER

Abstrak: Teknologi tepat guna Hybrid Solar Cell dan Turbin Angin dengan Sistem Kontrol Berbasis Data Longger untuk kebutuhan Energi Listrik Petani Tambak Udang. Permasalahan akses dan kebutuhan listrik yang tidak terpenuhi menjadi kendala tambak udang tradisional. Kendala yang dialami Petani Tambak udang tradisional, mengeluhkan tidak adanya akses listrik di tambak yang dia kelola, sehingga produksi tambak udang yang mereka hasilkan tergolong rendah dibandingkan Petani Tambak yang lain. Adapun metode pelaksanaan kegiatan yaitu FGD tentang kebutuhan alat di Petani tambak, kemudian mendesain mesin yang sesuai kebutuhan dan membuat Teknologi hybrid solar cell serta turbin angin berbasis data longger, selanjutnya pengujian kualitas tambak udang setelah pemasangan teknologI hybrid. Hasil program pengabdian kepada masyarakat yang dicapai dari Teknologi hybrid solar cell dan turbin angin dengan sistem kontrol berbasis data longer telah berfungsi dan memenuhi 100 % uji fungsionality dan uji usuability dengan kategori baik. Dengan memberikan akses listrik terhadap tambak, petani tambak udang dapat meningkatkan kualitas, mutu, dan kuantitas hasil panen.Abstract: This article discusses Hybrid Solar Cell and Wind Turbine Technology with Android-Based Control System for the Electric Energy needs of Shrimp Farmers. By utilizing renewable energy sources that are friendly to the environment, unlimited availability, economical, and many others. The implementation methods carried out are analyzing user needs, designing, making hybrid solar cell and wind turbine technology based on android control, checking functionality, checking usuability, and testing the quality of shrimp ponds after the installation of hybrid technology. There are 5 shrimp farmers participating in this training. The results achieved from the hybrid solar cell and wind turbine technology with an android-based control system have functioned and fulfilled 100% of the functionality and usuability tests with good categories. By providing electricity access to ponds, shrimp pond farmers can improve the quality, quality and quantity of their harvests

On the modelling aspect of low-velocity impact composite laminates / M.S. Meon...[et al.]

Composites suffer a degradation of structural stiffness due to various types of impact loading resulting in damage which is difficult to observe from the surface of the structure. The paper deals with the finite element model (FEM) to study the possible modelling procedures in low-velocity impact (LVI) and failure mechanism of carbon fiber reinforced polymer (CFRP) composite laminate of CCF300/epoxy and its structural responses. In finite element calculation, a proposed three-dimensional progressive damage model is used to determine the intralaminar damage, whereas the cohesive contact formulation is employed to analyse the interlaminar damage. The failure model performances are validated and verified based on different boundary conditions while maintaining the impact energy. Through simulation, the variation in boundary conditions significantly changes the structural responses and energy absorption of the laminates. It is hoped this study will be a great tool in determining the different composite impact scenarios

Modelling heavy metals in the Buriganga River System, Dhaka, Bangladesh: Impacts of tannery pollution control

Heavy metal pollution from tanneries is a global problem in many rapidly developing economies. Effluent discharges into rivers cause serious problems for water quality, damaging ecology and threatening the livelihoods of people, especially in developing urban centres which often have a high concentration of factories. The industry intensive capital area of Bangladesh is impacted with high levels of metals pollution in rivers in the Greater Dhaka Watershed. Sampling and modelling studies have been undertaken to assess pollution in the Buriganga River System in Dhaka. The process based, dynamic model INCA (Integrated Catchments) model has been used to simulate metals along the Buriganga River System in Central Dhaka. Observed and simulated metals concentrations are high, and the model shows that the proposed transfer of the tannery industry upstream helps to reduce the pollution significantly downstream. However, moving the industry upstream may be counterproductive as it is discharged into the upper reaches of the river. This will create pollution upstream unless the newly constructed effluent treatment system can operate at a high level

Modelling heavy metals in the Buriganga River System, Dhaka, Bangladesh: Impacts of tannery pollution control

Heavy metal pollution from tanneries is a global problem in many rapidly developing economies. Effluent discharges into rivers cause serious problems for water quality, damaging ecology and threatening the livelihoods of people, especially in developing urban centres which often have a high concentration of factories. The industry intensive capital area of Bangladesh is impacted with high levels of metals pollution in rivers in the Greater Dhaka Watershed. Sampling and modelling studies have been undertaken to assess pollution in the Buriganga River System in Dhaka. The process based, dynamic model INCA (Integrated Catchments) model has been used to simulate metals along the Buriganga River System in Central Dhaka. Observed and simulated metals concentrations are high, and the model shows that the proposed transfer of the tannery industry upstream helps to reduce the pollution significantly downstream. However, moving the industry upstream may be counterproductive as it is discharged into the upper reaches of the river. This will create pollution upstream unless the newly constructed effluent treatment system can operate at a high level

River toxicity assessment using molecular biosensors: Heavy metal contamination in the Turag-Balu-Buriganga river systems, Dhaka, Bangladesh

Pollution in rapidly urbanising cities and in delta systems is a serious problem that blights the lives and livelihoods of millions of people, damaging and restricting potable water supply and supplies to industry (Whitehead et al, 2015, 2018). Employing new technology based on luminescent molecular biosensors, the toxicity in the rivers around Dhaka in Bangladesh, namely the Turag, Tongi, Balu and Buriganga, has been assessed. Samples taken at 36 sites during medium and low flow conditions and during the Bishwa Ijtema Festival revealed high levels of cell toxicity, as well as high concentrations of metals, particularly aluminium, cadmium, chromium, iron, zinc, lithium, selenium and nickel. Chemical analysis also revealed low dissolved oxygen levels and anoxic conditions in the rivers at certain sites. The bacterial molecular biosensors were demonstrated to be fast, with results in 30 min, robust and a highly sensitive method for the assessment of water toxicity in the field. Furthermore, the biosensor toxicity analysis correlated with the metals data, and a multivariate regression relationship was developed relating toxicity to key metals, such a selenium, zinc and chromium. The resulting model has been validated against split samples and the Bishwa Ijtema Festival data. The combination of modelling and the molecular biosensor technology provides a new approach to detecting and managing pollution in urban river systems