scholarly journals ENERGY IMPLEMENTATION OF SOLAR PANELS FOR REFRIGERATOR NEEDS LOAD FISHING RESULTS 80 WATT MAXIMUM CAPACITY 20 KG

2019 ◽  
Vol 4 (1) ◽  
pp. 19-31
Author(s):  
A. YUNUS NASUTION ◽  
ADITYA PRATAMA
Keyword(s):  
Power Consumption ◽  
Solar Panel ◽  
Coefficient Of Performance ◽  
Total Power ◽  
Cooling Load ◽  
Solar Panels ◽  
Average Output ◽  
Average Value ◽  
Battery Capacity ◽  
Compressor Power

The initial problems of fishermen still use their semi-modern catches and still use ice cubes as a cooling medium, due to the lack of innovation in the development of the cooling media caught by fishermen. The implementation of solar panel energy is the beginning for the development of refrigerator power consumption caught by fishermen. The goal is to calculate the cooling load on the refrigerator, calculate the Coefficient of performance (COP) at the refrigerator and the loading factors at the refrigerator, where the average ambient temperature is 34 ℃ and the temperature to be achieved is 0℃, the fisherman results used in the study this is a shrimp with a capacity of 20 kg and the cooling time is 4 hours. Where the total cooling load value is 244.29 Watt, multiplied by 10% safety factor, so the overall cooling load is 268.72 Watts, refrigerant mass flow rate is 0.0012 Kg / s, the evaporator capacity is 261 Watt, compressor power is 15.6 Watt, The coefficient of performance (COP) value was 16.73 while for the refrigerant capacity was 0.074 Tons of refrigerant, the loading factors in the study were used to run a refrigerator with 80 Watt power for 4 hours, so that the total refrigerator load was 320 Wh (Watt hour) , to produce 320 Wh power is used 2 solar panel modules with a capacity of 50 Wp (Watt Peak), and uses a solar change controller (SCC) with a capacity of 10 A. The output power of the solar panel is influenced by the intensity of the sun's light emitted, from the test obtained an average value the average output of solar panels is 90.6 watts, while the total power generated in 11 test points is 536 watts, the type used is polycrystalline, solar panels battery and inverter capacity must be greater than the refrigerator power consumption, in this study used a 12V 35 Ah battery capacity and 500 Watt Inverter

STUDY OF ELECTRIC MOTORS FOR AUTOMATED SOLAR PANEL CLEANING SYSTEMS

2020 ◽  
pp. 74-85
Author(s):  
D.I. Amirov ◽  
◽  
Yu.N. Zatsarinnaya ◽  
A.G. Logacheva ◽  
E.A. Fedotov ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Electric Drive ◽  
Payback Period ◽  
Solar Panel ◽  
Automated System ◽  
Low Power Consumption ◽  
Electric Motors ◽  
Solar Panels ◽  
Design Development

One of the main problems faced during solar panels operation is the contamination of their front surfaces. This paper presents the results of solving that problem by means of new equipment design development. The authors have proposed an autonomous and reliable cleaning method with low power consumption and no possibility of panel shading. In connection with the noted criteria, an automated system with a short payback period was created. The article presents a description of the developed device, the results of a study on the choice of an engine, an electric drive. The use of an automated system for cleaning solar panels will allow minimizing the share of human participation in the solar panels cleaning.

scholarly journals Performance Test of Solar-Powered Ice Maker: Case Study in South Lampung

2018 ◽  
Vol 43 ◽  
pp. 01018
Author(s):  
Putri Wullandari ◽  
Arif Rahman Hakim ◽  
Widiarto Sarwono
Keyword(s):  
Performance Test ◽  
Power Input ◽  
Solar Panel ◽  
Maximum Power ◽  
Total Power ◽  
Cloudy Weather ◽  
Battery Capacity ◽  
Solar Powered ◽  
Ice Production ◽  
Sunlight Intensity

The performance test of solar powered ice maker is being held at the fish auction spot of Kramat, South Lampung for 6 hours. The spesification of ice maker are: having the production capacity of 105 – 120 kg/ day, producing flakes ice with 2 x 3 x 3 mm dimension. The spesification of solar panel are: having maximum power of 200 W, 1,32 m length, 0,992 m width, and 1,3094 m2 area. In this test, we used 9 solar panel with the total area of 11,7846 m2. During the performance test, the intensity of sunlight, battery voltage, battery capacity, power input from solar panel, battery discharge current, maximum power consumption of ice maker, and total ice production are being measured. The sunlight-intensity value (lumen / m2) and the power input of the solar panel (watts) was plotted into a graph. Once the graph is created then add the trendline and create the equation. In a sunny-yet-cloudy weather conditions (at 24-33°C temperature and 65-95% humidity) in South Lampung, the relationship between the sunlight intensity with the power input of the solar panel is linear with the equation y = 0,008x + 143.6. Where the maximum intensity of sunlight is 121600 lm / m2 with the maximum power input of the solar panel (9 x 200Wp) is 1253 W. Total ice production for 6 hours is 28.42 kg or 4.74 kg per hour. This production resulted from a 760 W ice maker with a starting current of 4.6 A with a total power of 3.94 kWh.

scholarly journals Experimental Investigation of a Split Air Conditioning Using Condensate as Direct Evaporative Cooling

2021 ◽  
Vol 86 (1) ◽  
pp. 140-153
Author(s):  
Azridjal Aziz ◽  
Muhammad Rif’at Syahnan ◽  
Afdhal Kurniawan Mainil ◽  
Rahmat Iman Mainil
Keyword(s):  
Air Conditioning ◽  
Evaporative Cooling ◽  
Cooling Capacity ◽  
Coefficient Of Performance ◽  
Cooling Load ◽  
Air Conditioner ◽  
Direct Evaporative Cooling ◽  
Compressor Power ◽  
Discharge Pressure ◽  
Air Conditioning Systems

Split air conditioning systems produce reasonable amount of condensate which is usually not utilized and thrown away to the environment. On the other hand, it consumes a lot of energy during operation. The aim of this study is to investigate the improvement of air conditioning systems performance utilizing condensate. A direct evaporative cooling using condensate is incorporated on a 0.74 ton-cooling capacity of split air conditioning to decrease the air temperature before entering the condenser. Performances of the split air conditioning with and without direct evaporative cooling are compared and presented in this paper. The results show that the use of direct evaporative cooling using condensate into the air before passing through the condenser reduces the compressor discharge pressure. The decrease of the condenser pressure led to 4.7% and 7% reduction of power consumption for air conditioner without cooling load and air conditioner with 2000 W cooling load, respectively. The cooling effect and coefficient of performance (COP) increase with the decrease of compressor power. The use of direct evaporative cooling with condensate into the air before entering the condensing system can enhance the system performance and protect the environment.

scholarly journals Design and fabrication of solar panel with sun position tracker

2020 ◽  
Vol 14 (2) ◽  
pp. 6906-6916
Author(s):  
Firas B. Ismail ◽  
Nizar F.O. Al-Muhsen ◽  
Fazreen A. Fuzi ◽  
S. Sambathan ◽  
Muhammad N.H. Nawawi
Keyword(s):  
Real Time ◽  
Working Hours ◽  
Solar Panel ◽  
Testing Time ◽  
The Sun ◽  
Solar Panels ◽  
Average Output ◽  
Extra Energy ◽  
Energy Harvesting Efficiency ◽  
Life On Earth

Timelessly, the sun has been paramount source of energy for life on earth and a large portion of the energy is utilized just for warmth and lighting. Decisively, daylight can be utilized as another form of energy by completely harvesting the light rays from the sun into a reliable sustainable source of energy. The main objective of this work is to develop a new solar panel design with better energy harvesting efficiency with the capability of tracking the position of the sun using real-time tracker. Three solar panels are stacked above one another without overshadowing the below ones. Solar concentrator is also employed to focus the sun irradiance onto panels. To ensure maximum power harvested, solar panel needs to be perpendicular to the sun’s array. Therefore, solar panels are rotated using combination of servo motors, Real Time Clock (RTC) and Arduino Mega 2560 to certain angles at certain period. The result is then compared with the conventional solar panel system, and it is found that the new design generates 50 kW/h extra energy, which is about 21.24% greater than the static conventional system. The overall increment of the average output power is about 28.5% which is for all the working hours over three days' testing time. Besides, it is found that the performance of the proposed system could be influenced by the operating temperature of the PV modules.

DEVELOPMENT AND EVALUATION OF AN AUTOMOTIVE AIR-CONDITIONING TEST RIG

2016 ◽  
Vol 78 (10-2) ◽  
Author(s):  
Ahmad Zulkhairie Amran ◽  
Zulkarnain Abdul Latiff ◽  
Henry Nasution ◽  
Mohd Rozi Mohd Perang ◽  
Hishammudin Mohd Jamil ◽  
...  
Keyword(s):  
Power Consumption ◽  
Air Conditioning ◽  
Coefficient Of Performance ◽  
Refrigeration System ◽  
Test Rig ◽  
Air Conditioning System ◽  
Variable Parameters ◽  
Automotive Air Conditioning ◽  
Air Flow Velocity ◽  
Compressor Power

To evaluate an air-conditioning system performance on board is quite cumbersome and tedious process due to the limitation of space in the engine compartment. This paper presents the process of designing and the result from the automotive refrigeration system simulation that have been integrated into the test rig. To perform the test on automotive refrigeration simulator the location for the temperature measurement selected and thermocouples were installed. The locations of the temperature probes are at the inlet and outlet of compressor, condenser outlet and the inlet of the evaporator. The gas pressure was measured at low and high pressure sides located at evaporator outlet and receiver-drier respectively. The test results were analyzed using the properties table of the refrigerant used. The coefficient of performance (COP), cooling load of the system and compressor power consumption were determined. The variable parameters used are the evaporator blower speed and the air velocity passes through the condenser. The experimental results obtained show that increasing the blower speed will reduce the COP of the refrigeration system. The maximum COP of the system is 4.3 at the lowest evaporator blower speed. The power consumption will be reduced when the air flow velocity through the condenser is increased from 0, 40, 50, 60, 70 km/h respectively.

scholarly journals Self-sustaining and externally-powered fixed, single, and dual-axis solar trackers

2020 ◽  
Vol 11 (2) ◽  
pp. 1031
Author(s):  
A. H. Mohaimin ◽  
M. R. Uddin ◽  
A. Khalil
Keyword(s):  
Power Consumption ◽  
Power Output ◽  
Tracking System ◽  
Average Power ◽  
Solar Panel ◽  
Tracking Systems ◽  
Solar Panels ◽  
Voltage Output ◽  
Solar Tracking ◽  
Fixed Panel

<p>Power output from a small solar panel can be affected by its power consumption when it consumes power from the solar panel. There has been a lack of proper research and experiment in the use of small solar panel with tracking systems. Its significance was detailed in this paper where the voltage output are compared with those which were externally powered. The solar trackers and a microcontroller have been designed and fabricated for this research. Due to the use of the tracking system (single axis and dual axis), the power consumption varies from one to another and its effect on the voltage output. Several experiments have been conducted and it was concluded that small solar panels are not efficient enough to utilize with tracking capabilities due to an increase in power consumption. The externally powered system was found to generate 18% more output compared to a selfsustaining system and that the increase in average power consumptions compared to a fixed panel were 31.7% and 82.5% for single-axis and dualaxis tracker respectively. A concrete evidence was made that utilizing solar tracking capabilities for low power rated solar panel is unfeasible.</p>

scholarly journals Perancangan Umbrella Energy Sebagai Charger Handphone Pada Cafe

2020 ◽  
Vol 13 (2) ◽  
pp. 82
Author(s):  
Wahyu Ferdiana Octavian ◽  
Rahmat Hidayat ◽  
Lela Nurpulaela
Keyword(s):  
Renewable Energy ◽  
Mobile Phone ◽  
Output Power ◽  
Average Output Power ◽  
Environmentally Friendly ◽  
Electrical Energy ◽  
Solar Panel ◽  
Solar Panels ◽  
Average Output ◽  
Dc Current

Batteries and solar panels are 2 device capable of converting sunlight into unidirectional electrical energy. The power of the energy stored from the battery can be converted into AC or DC current. A canopy umbrella covered with solar panel elements can be used as a mobile phone charger center as well as a place to relax. Umbrella which are a source of DC electrical energy are desaigned to follow existing products in the market with additional modifications in the form of new renewable energy (EBT) or by another nama environmentally friendly energy. This tool is named as umbrella energy, with the use of solar panels used at 90 Wp (Wattpeak), it can produce an average output power of 28.49 W hour. The system will generate maximum power for charging to the battery in 1 day of 227.99.

PLTS 200 Wp to Meet Energy Needs at the Taqwa Muhammadiyah Mosque, Sei Litur Village, Sawit Sebrang Langkat District

2021 ◽  
Vol 1 (1) ◽  
pp. 60-71
Author(s):  
Partaonan Harahap ◽  
Irfan Nofri ◽  
Sudirman Lubis
Keyword(s):  
Renewable Energy ◽  
Solar Cell ◽  
Efficiency Factor ◽  
Solar Panel ◽  
Electricity Supply ◽  
Solar Panels ◽  
Everyday Activity ◽  
Energy Needs ◽  
Battery Capacity ◽  
The Village

At the Taqwa Muhammadiyah Mosque, a local place of worship, the power blackout is becoming very troublesome. On one side of the village where the research was conducted, the light intensity was high enough so that it is very good to be used as a source of renewable energy, namely solar panels or better known as PLTS. Method used in this research is experiment which is fully functional to control the implementation of the solar panel for electricity supply for the Mosque everyday activity Based on the results of measurements and calculations, the 200 Wp solar panel, when the weather is sunny, will be able to charge a battery by 68.2% or 87.2 Watts. In using the battery, the efficiency factor of the battery must be considered because it cannot be operated until all power is used up. Battery Capacity is 754.7 Ah and is able to supply DC lamps for 1 day and is able to supply AC loads for 1.02 day. So in 11 hours (lowest data) the 200WP solar panel is able to charge a battery with a capacity of 100Ah at 80% of the full battery capacity. Keywords: generator; PLTS; solar cell

scholarly journals Perancangan Cold Storage Untuk Sayuran Buncis Dengan Kapasitas 10 Ton

2021 ◽  
Vol 1 (1) ◽  
pp. 23
Author(s):  
M.Pramuda Nugraha Sirodz ◽  
Lucyana Balqis
Keyword(s):  
Air Temperature ◽  
Cold Storage ◽  
Coefficient Of Performance ◽  
Cooling Load ◽  
Vapor Compression ◽  
Special Equipment ◽  
Snap Beans ◽  
Vapor Compression Cycle ◽  
Compression Cycle ◽  
Compressor Power

Abstrak Buncis merupakan salah satu produk pertanian di Indonesia yang diekspor ke luar negeri. Setelah dipanen, buncis disimpan untuk diproses sebelum diekspor ke konsumen. Kesegaran buncis umumnya hanya bertahan selama 1 minggu, oleh karena itu diperlukan alat khusus untuk mempertahankan kesegaran buncis sebelum diekspor ke konsumen. Untuk mempertahankan kesegaran buncis, temperatur udara 4°C-7°C dengan kelembaban 90%-95% perlu dipertahankan. Dengan menggunakan cold strorage, kondisi ruang penyimpanan dapat diatur sedemikian rupa agar memenuhi kriteria tersebut. Pada penelitian ini dirancang sebuah cold storage dengan kapasitas 10 ton untuk tanaman buncis. Cooling Load Temperatur Difference (CLTD) pada perancangan ini diatur bulan dan waktunya yang disesuaikan dengan posisi dari cold storage. Beban pendinginan total untuk 10 ton buncis adalah sebesar 46,73 kW. Cold storage hasil rancangan menggunakan siklus kompresi uap dengan fluida refrigeran R134a tanpa menggunakan humidifier. Untuk mempertahankan kondisi udara pada cold storage agar sesuai dengan kebutuhan, kompressor AC dengan kapasitas 12,7 kW digunakan pada siklus kompresi uap. Performa dari siklus kompresi uap dengan kondisi operasi tersebut ditentukan oleh Coefficient of Performance (COP). Semakin besar nilai COP, maka sistem  semakin efisien. Coefficient of Performance (COP) dari siklus tersebut adalah sebesar 3,84. Kata kunci: Buncis, CLTD, Refrigeran, COP, Siklus kompresi uap Abstract                                                                                                                                                                                                            Snap beans are one of Indonesian acgricultural product exported to overseas. After harvested, snap beans were stored before exported to consumers. The freshness of the snap beans only lasted for one week, therefor special equipment were required to maintain the snap beans freshness. To maintain the freshness, snap beans must be storage in a room with 4-7°C air temperature and 90-95% humidity. In this research, cold storage was designed for 10 tons of snap beans. Cooling Load Temperature Difference method was used to determine the load of the cold storage based on the position of the building. The total cooling load for 10 tons of snap beans were 46,73 kW. The cold storage was using vapor compression cycle with  refrigerant 134a without humidifier . The cycle requires compressor power of 12,7 kW to maintain the condition in the cold storage room. The performance of the cycle was determined from the Coefficient of Performance (COP). The higher value of the COP, the system will be more efficient. The COP of the vapor compression cycle  was 3,84.   Key words: Snap Beans, Export, Refrigerant, Storage, Humidity.

scholarly journals Performance Study and Efficiency Improvement of Ice Slurry Production by Scraped-Surface Method

2018 ◽  
Vol 9 (1) ◽  
pp. 74 ◽  
Author(s):  
Xi Liu ◽  
Yueling Li ◽  
Kunyu Zhuang ◽  
Ruansong Fu ◽  
Shi Lin ◽  
...  
Keyword(s):  
Sodium Chloride ◽  
Power Consumption ◽  
Flow Rate ◽  
Coefficient Of Performance ◽  
Total Power ◽  
Solution Flow Rate ◽  
Ice Slurry ◽  
Solution Flow ◽  
Surface Method ◽  
Total Power Consumption

In this study, the performance of ice slurry production by scraped-surface method was experimentally investigated. Temperature change characteristics, ice packing fraction (IPF) of ice slurry, power consumption of scraping system and coefficient of performance (COP) were measured by varying the concentration of sodium chloride solution, scraping speed, and solution flow rate. The effect of nanosilica on efficiency of ice slurry production was also studied. The results showed that scraping power consumption accounted for only a small proportion (about 5%) of the total power consumption of the system. An increase in the concentration of sodium chloride caused a decrease in the IPF and a decrease in the COP of the system. With the solution flow rate at 1.3 m3/h and scraping speed at 13 rpm, the maximum COP (2.43) was obtained. Furthermore, the addition of nanosilica had a significant effect on improving the system COP.

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