USE OF SOLAR ENERGY TO SAVE FISHING BOAT OPERATIONS FOR FISHERMAN IN PULO AMPEL VILLAGE, SERANG DISTRICT

In an effort to help improve the welfare of fishing communities, universities implement community service programs, this is an alternative in empowering the economy of fishing communities. There is a fishing village in Pulo Ampel Village, Serang Regency, Banten Province. Fishing activities by fishermen around the offshore Pangkalan Ikan in the village. Puloampel has a population of 11,758 people, namely 5,943 men and 5,815 women. Most of the people in Puloampel are fishermen, trading businesses, and farmers. The size of the existing fishing boats are generally relatively small, between 3 GT and 5 GT. The number of fishermen is 126 people, and there are 38 operating fishing boats. The fishermen use fishing boats generally leaving at night until the morning ± 8 hours. Currently, electricity needs for lights and other tools use batteries/batteries with electric shocks charging every 2 days. Complaints about charging the charger, the battery will be damaged quickly. To overcome and save electricity, it can be used as an electric charger with solar panels. Therefore, the community service team can provide counseling and training on the installation of solar panel electrical components (solar energy) for fishing boats owned by fishermen. The problem faced by partners (fishermen) who have been complaining about this is that the batteries used are damaged quickly, because the batteries are removed too often for charging electric shocks, this hampers the economic welfare of the fishermen\u27s families because of additional costs. The purpose of implementing this community service program is to increase applied knowledge for small-size fishing boat electricity, and by utilizing solar/solar energy components applied to ships, it can reduce costs and extend the technical life of batteries/batteries.In an effort to help improve the welfare of fishing communities, universities implement community service programs, this is an alternative in empowering the economy of fishing communities. There is a fishing village in Pulo Ampel Village, Serang Regency, Banten Province. Fishing activities by fishermen around the offshore Pangkalan Ikan in the village. Puloampel has a population of 11,758 people, namely 5,943 men and 5,815 women. Most of the people in Puloampel are fishermen, trading businesses, and farmers. The size of the existing fishing boats are generally relatively small, between 3 GT and 5 GT. The number of fishermen is 126 people, and there are 38 operating fishing boats. The fishermen use fishing boats generally leaving at night until the morning ± 8 hours. Currently, electricity needs for lights and other tools use batteries/batteries with electric shocks charging every 2 days. Complaints about charging the charger, the battery will be damaged quickly. To overcome and save electricity, it can be used as an electric charger with solar panels. Therefore, the community service team can provide counseling and training on the installation of solar panel electrical components (solar energy) for fishing boats owned by fishermen. The problem faced by partners (fishermen) who have been complaining about this is that the batteries used are damaged quickly, because the batteries are removed too often for charging electric shocks, this hampers the economic welfare of the fishermen\u27s families because of additional costs. The purpose of implementing this community service program is to increase applied knowledge for small-size fishing boat electricity, and by utilizing solar/solar energy components applied to ships, it can reduce costs and extend the technical life of batteries/batteries

The Effect of Orifice Shape on Convective Heat Transfer of an Impinging Synthetic Jet

A greater heat load due to the miniaturization of electronic products causes the need for a new cooling system that works more efficiently and has a high thermal capacity. A synthetic jet is potentially useful for the cooling of electronic components. This paper reports the results of our experimental studies and the influence of orifice shape for Impinging Synthetic Jet cooling perfomance. The effect of shape of the orifice of an impinging synthetic jet assembly on the apparatus cooling of a heated surface is experimentally investigated. It will be seen that the characteristics of convective heat transfer will occur by moving the piezoelectric membrane. The prototype of the synthetic jet actuator is coupled with two piezoelectric membranes that operate by 5 volt electrical current and create a sinusoidal wave. The orifice shapes considered are square and circular. The results show the significant influence of orifice shape and sinusoidal wave frequencies on the heat transfer rate that were obtained. The temperature drop with a square orifice is found to be larger than that with circular shapes. A square orifice has a larger covered area if compared to the circular orifice at the same radius, thus resulting in a larger entrainment rate that leads to an increase of heat transfer performance

Computational and Experimental Study of Heat Transfer on the heat sink with an impinging synthetic jet under Various Excitation Wave

This work presents an investigation of an impinging synthetic jet produced by a continuous movement of an oscillating piezoelectric membrane in a synthetic jet actuator (SJA). The jet stream blows from the top of the heat sink attached to an electrically heated mat, and is used to enhance heat transfer to simulate a microelectronic component cooling system. Experimental measurements and numerical simulation were conducted to elucidate the distribution of forced convective heat transfer. The membrane's movement was set to produce a synthetic jet for a complete cycle to investigate flow dynamics in suction and blowing streams. The purpose of this research is to characterize synthetic jet membrane vibrations using sinusoidal, square, and triangular wave excitation modes to find which mode is best for vibrating the synthetic jet membrane. The membrane was excited with various functions, including sinusoidal, triangular, and square waveforms with frequency of 80 Hz, 120 Hz, and 160 Hz. The synthetic jet flow simulation utilized a commercial CFD software, FLUENT and DesignModeler to generate an element meshing with total mesh volume of 537.422. The amplitude for all membrane waves is assumed to be 2 mm/s. A k-ω Shear Stress Transport turbulence model was used to complete the simulation. A user-defined function model was developed to drive the piezoelectric membrane using various sinusoidal and non-sinusoidal excitation waves. Measurements were conducted using thermocouples with an automated data acquisition system to obtain temperature data and derive heat transfer coefficients.The conclusion from this research is that the 120 Hz square wave excitation mode produces the best heat transfer value. This research can contribute to the development of synthetic jet models for the microelectronic component cooling system industry

Design of Pump as Turbine Experimental Test Facility

This paper presents the design process of experimental test facility for pump as turbine hydropower system. Three design possibilities that related to the PAT condition of operation was developed and analyzed by using CFD Software. It is found that the First Variant with a straight flow to the PAT will produce higher velocity, which is needed to generate more rotation of the shaft generator, in order to generate more electric power. The strength of PAT construction was analyzed by using FEM software. It was found that the maximum stress is 6 MPa and can be concluded that the construction is appropriate to the design requirement

Design of Pump as Turbine Experimental Test Facility

This paper presents the design process of experimental test facility for pump as turbine hydropower system. Three design possibilities that related to the PAT condition of operation was developed and analyzed by using CFD Software. It is found that the First Variant with a straight flow to the PAT will produce higher velocity, which is needed to generate more rotation of the shaft generator, in order to generate more electric power. The strength of PAT construction was analyzed by using FEM software. It was found that the maximum stress is 6 MPa and can be concluded that the construction is appropriate to the design requirement