scholarly journals Analisa Pembangkit Listrik Tenaga Diesel Gas Dengan Menggunakan Bahan Bakar LNG Dan Minyak Solar Di PT Indonesia Power Unit Pembangkitan Bali

Jurnal METTEK ◽  
2018 ◽  
Vol 4 (1) ◽  
pp. 31
Author(s):  
K G Trisna Upadana Putra ◽  
I Gusti Bagus Wijaya Kusuma ◽  
Made Sucipta
Keyword(s):  
Diesel Fuel ◽  
Electric Energy ◽  
Production Capacity ◽  
Engine Performance ◽  
Electrical Energy ◽  
Plant Performance ◽  
Electricity Production ◽  
High Demand ◽  
The Difference ◽  
Performance Equation

Permintaan energi listrik mengalami peningkatan, seiring peningkatan pertumbuhan populasi penduduk dan banyaknya industri. Tingginya permintaan energi listrik menjadi sebuah tantangan untuk produsen listrik, dalam memenuhi kebutuhan pelanggan akan energi listrik. Produsen listrik terbesar di Bali adalah PT. Indonesia Power UP Bali. Pembangkit yang dimiliki yaitu PLTDG dengan kapasitas produksi listrik 200 MW dioperasikan menggunakan bahan bakar gas LNG dan minyak solar (HSD/LFO). Dikarenakan penggunaan minyak solar dibatasi, maka PLTDG dioperasikan dengan gas LNG. Perbedaan bahan bakar yang digunakan mempengaruhi unjuk kerja dari pembangkit. Analisa unjuk kerja memberi gambaran dalam sisi keteknikan dan analisa BPP pembangkitan memberi gambaran dalam sisi keekonomian. Penelitaian ini dilakukan dengan cara perhitungan menggunakan persamaan-persamaan unjuk kerja mesin diesel, kemudian dibandingkan unjuk kerja PLTDG menggunakan bahan bakar LNG dan minyak solar dan dianalisa secara keekonomian. Hasil yang didapat yaitu unjuk kerja PLTDG menggunakan minyak solar lebih besar tetapi dari sisi keekonomian hasil BPP PLTDG menggunakan gas LNG lebih ekonomis. Demand for electric energy has increased, as population growth increases and the number of industries. The high demand for electrical energy becomes a challenge for electricity producers, in meeting the needs of customers for electrical energy. The largest power producer in Bali is PT. Indonesia Power UP Bali. The power plant owned by PLTDG with 200 MW electricity production capacity is operated using LNG gas and diesel fuel (HSD/LFO). Due to the use of diesel fuel is limited, the PLTDG is operated with LNG gas. The difference in fuel used affects the performance of the plant. Performance analysis gives an overview in terms of engineering and BPP analysis provides an overview of the economy side. This research is done by calculation using diesel engine performance equation, and then compared the performance of PLTDG using LNG and diesel fuel and analyzed economically. The results obtained are the performance of diesel powered PLTDG larger but in terms of economics of BPP PLTDG results using LNG gas is more economical.

Diesel engine performance at the intake of the hydrogen&air mixture

2021 ◽  
pp. 119-126
Author(s):  
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Internal Combustion Engines ◽  
Fuel Efficiency ◽  
Experimental Studies ◽  
Motor Fuel ◽  
Engine Performance ◽  
Calorific Value ◽  
Hydrocarbon Emissions ◽  
The Difference

The prospects of using hydrogen as a motor fuel are noted. The problems that arise when converting a diesel engine to run on hydrogen are considered. The features of the organization of the working process of enginesrunning on hydrogen are analyzed. A method of supplying a hydrogenair mixture to a diesel engine is investigated. To supply hydrogen to the engine cylinders, it is proposed to use the Leader4M installation developed by TechnoHill Club LLC (Moscow). Experimental studies of a stationary diesel engine of the D245.12 S type with the supply of hydrogen at the inlet obtained at this installation are carried out. At the maximum power mode, the supply of hydrogen from this installation to the inlet of the diesel engine under study was 0.9 % by weight (taking into account the difference in the calorific value of oil diesel fuel and hydrogen). Such a supply of hydrogen in the specified mode made it possible to increase the fuel efficiency of the diesel engine and reduce the smoke content of exhaust gases, carbon monoxide and unburned hydrocarbon emissions. Keywords internal combustion engines; diesel engine; diesel fuel; hydrogen; hydrogenair mixture; fuel efficiency; exhaust gas toxicity indicators

Photovoltaic electricity production in a residential house on Réunion

2013 ◽  
Vol 24 (2) ◽  
pp. 50-56 ◽  
Author(s):  
Milorad Bojic ◽  
Alexandre Patou Parvedy ◽  
Frédéric Miranville Miranville ◽  
Dimitri Bigot ◽  
Dragan Cvetković ◽  
...  
Keyword(s):  
Electric Energy ◽  
Electrical Energy ◽  
Energy Generation ◽  
Electricity Production ◽  
Sustainable Building ◽  
Pv Array ◽  
The North ◽  
Residential House ◽  
The Republic ◽  
Electrical Energy Generation

In this paper, the electrical energy generation of photovoltaic (PV) arrays is discussed for three cities on the island of Réunion (the Republic of France) located in the Indian Ocean. Each PV array has a different orientation as it is placed at different parts of the roof of a residential house that supposedly is a sustainable building. The electrical energy generation is obtained by using EnergyPlus software and measured solar radiation data. The highest generation of electric energy is found for the PV array located at the north roof surface. The generation of electric energy at the east-facing PV array is larger than that at the west-facing PV array. The electrical energy generation for the city of Le Port on the coast is higher than that for the cities of Cilao, and Plaine des Cafres that are located in the mountains of Réunion.

scholarly journals The Effect of Biogas Origin on the Electricity Production by Solid Oxide Fuel Cells

2021 ◽  
Vol 11 (7) ◽  
pp. 3112
Author(s):  
George N. Prodromidis ◽  
Frank A. Coutelieris
Keyword(s):  
Research Study ◽  
Electric Energy ◽  
Operating Conditions ◽  
Solid Oxide ◽  
Plant Performance ◽  
Electricity Production ◽  
Oxide Fuel ◽  
Feed Stream ◽  
Operational Parameters ◽  
Energy And Exergy

This work simulates electricity production in a Solid Oxide Fuel Cell (SOFC)-based power plant, fed by biogas of various compositions. Steam reforming of the gas feed stream is used to produce the required supply for the SOFC. Given the constraints of the feed stream compositions, resulting from the origin of biogas, i.e., by the biomass from which the biogas has been produced as well as by the operating conditions selected for its production, the overall plant performance is modelled in terms of energy and exergy. The model provides results on the efficiency, power output and thermal behavior of the system, thus presenting the potential to offer great advantages in generating electricity from biogas and reducing the environmental impact. This research study presents the efficiency of such a system in terms of energy and exergy, by considering several values of the operational parameters (extensions of reactions that take place in the apparatus, temperatures, feed stream compositions, etc.). It is found that moving towards a methane richer fuel, the energy and exergy efficiency can remain almost constant at high levels (around 70%), while in absolute value the electric energy can increase up to 35% according to the system’s needs. Therefore, under this prospect, the present research study reveals the usefulness of low content methane fuels, which through the optimization process can succeed identical energy management compared to high content methane fuels.

scholarly journals Producing renewable electric energy through a microbial fuel cell in the rice field

2020 ◽  
Vol 21 (9) ◽  
Author(s):  
HADI WISA NUGRAHA ◽  
GUNAWAN DJAJAKIRANA ◽  
SYAIFUL ANWAR ◽  
DWI ANDREAS SANTOSA
Keyword(s):  
Organic Matter ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Rice Field ◽  
Electric Energy ◽  
Electrical Energy ◽  
Electrical Current ◽  
Ex Situ ◽  
Electricity Production ◽  
Circulation System

Abstract. Nugraha HW, Djajakirana G, Anwar S, Santosa DA. 2020. Producing renewable electric energy through a microbial fuel cell in the rice field. Biodiversitas 21: 4139-4146. Microbial Fuel Cell (MFC) is an alternative technology that converts chemical energy into electrical energy using microbes. This study aimed to apply MFC technology in the rice field to produce renewable electricity by utilizing microbes that have been previously isolated. The study was conducted in two experiments. The first experiment was carried out to select MFC prototypes with different in the oxygen circulation system (anode and cathode holes) that capable of producing the highest Voltage. The second experiment was performed to test the selected MFC prototype for electricity production in 12 combination treatments of microbes, organic matter, and fertilization (mixed NPK fertilizer) with three replications on rice cultivation in a greenhouse. The results showed that the best MFC prototype was a prototype that has two holes, each at anode and cathode (MFC 2). The highest electrical Voltage was generated by the treatment with microbes and organic matter, without fertilizer. The treatments produced the highest electrical current was the addition of microbes, organic matter, without and with 50% fertilizer. The highest power density was generated by the treatment with microbes and organic matter, without fertilization. The addition of ex-situ isolated microbes significantly increased the production of electricity.

scholarly journals Analysis of thermal and electrical efficiency of photovoltaic/thermal – PV/T modules operating in moderate climate at microscale

2018 ◽  
Vol 70 ◽  
pp. 01002
Author(s):  
Dorota Chwieduk ◽  
Jarosław Bigorajski
Keyword(s):  
Thermal Energy ◽  
Electrical Energy ◽  
Hot Water ◽  
Electricity Production ◽  
Energy Output ◽  
Single Family ◽  
System Operation ◽  
Electrical Efficiency ◽  
The Difference ◽  
T System

The paper presents an application concept for PV/T - Photovoltaic Thermal Technology in moderate climates (such as the Polish climate), at a micro scale, i.e. for a single family house. The paper analyses the operation of a PV/T system applied to Domestic Hot Water – DHW heating and electricity production. A mathematical model of the system operation has been developed. The paper focuses on modeling thermal and electrical efficiency of photovoltaic/thermal - PV/T modules. It also briefly presents the governing equations for the thermal energy balance of a storage tank, where thermal stratification effects take place. Some selected results of the numerical simulation of the PV/T system operation are described. Daily distribution of hourly averaged thermal and electrical efficiency of the PV/T modules without cover and with one glazing are presented. The PV/T systems do not give significant thermal energy output in winter. PV/T modules without glazing do not supply heat at all for three winter months, their highest thermal efficiency is in summer and it can be nearly 15%. In the same period glazed modules have efficiency equal to nearly 24%. However, the unglazed modules can give much more electrical energy in summer than those with glazing, and the electrical efficiency can reach the levels of 11.4% and 9.4%, respectively. In winter the difference is smaller, i.e. for unglazed the efficiency is 12.2%, and for glazed 11.2%.

Field Test of a Cooper LSVB-20GDT Engine Operating on Biodiesel

2009 ◽  
Author(s):  
Greg Beshouri ◽  
Henry Lam
Keyword(s):  
Diesel Fuel ◽  
Fuel Injection ◽  
Engine Performance ◽  
Engine Emissions ◽  
Single Cylinder ◽  
Energy Center ◽  
The Difference ◽  
Engine Testing ◽  
The Impact ◽  
Diesel Operation

NRG Energy Center Paxton LLC (NRG-ECP) operates two Cooper LSVB-20GDT gas-diesel engines at a combined heat and power facility in Harrisburg, PA. NRG-ECP commissioned Advanced Engine Technologies Corporation (AETC) to conduct a literature review on the impacts of operating these engines on Biodiesel. Based on the somewhat favorable results of the review, NRG-ECP with support from AETC performed single cylinder and then full engine testing on one engine to assess the impact of Biodiesel operation on engine performance, emissions and operability as an alternative to full diesel operation. The results showed the engine exhibited no major differences in combustion performance or engine operability when running on Biodiesel in comparison to standard diesel fuel. During single cylinder testing the switch between diesel and Biodiesel was virtually undetectable. In the full engine Biodiesel test the unit started, idled, synchronized and loaded identical to diesel fuel. From a combustion perspective, the differences in Biodiesel vs. diesel operation are primarily attributable to the difference in air/fuel ratio due to the different fuel compositions. Fuel injection performance did not appear to change significantly or impact engine emissions.

scholarly journals Studi Perencanaan Penerangan Jalan Umum Panel Surya di Kelurahan Gading Kasri Kecamatan Klojen

2021 ◽  
Vol 8 (1) ◽  
pp. 16-21
Author(s):  
Asfari Hariz Santoso ◽  
Ahmad Hermawan ◽  
Muhammad Azam Wian Panantuan
Keyword(s):  
Electric Energy ◽  
Electrical Energy ◽  
Point Of View ◽  
Solar Panels ◽  
Economic Point ◽  
Electric Energy Consumption ◽  
Regional Budget ◽  
Heavy Burden ◽  
The Difference ◽  
Solar Powered

Malang City is a city that has an increasing need for electrical energy in the technological era, which today is very much needed in fulfilling daily life, both for household, social and industrial needs. One of them is the supply of electrical energy for Public Street Lighting (PJU). If you only rely on the supply of electrical energy from grid, this is a heavy burden that must be borne by the Malang City Regional Budget to pay the electric energy consumption bill for the PJU. This study aims to determine the comparison of the use of conventional PJU with solar powered PJU (PJUTS) in the area of ​​Gading Kasri Village, Klojen District, Malang City both in terms of technical installations which include solar panels, batteries, and charger controllers as well as from an economic point of view. That shines for 5 hours every day, the solar panel power specifications are 240 Wp with 37 points of light. Budget calculations using the ACS (Annual cost system) which is obtained in the 16th year the difference from the initial investment costs and revenue from sales met at BEP (break event point) amounting to Rp. 256,761,376.00.

scholarly journals KAJIAN EFISIENSI ENERGI DENGAN PENGATURAN SUPLAI ENERGI LISTRIK

JURNAL ELTEK ◽  
2018 ◽  
Vol 16 (1) ◽  
pp. 98
Author(s):  
Mochammad Mieftah
Keyword(s):  
Energy Efficiency ◽  
Power Supply ◽  
Energy Cost ◽  
Energy Supply ◽  
Electric Energy ◽  
Electrical Energy ◽  
Production Costs ◽  
Electricity Production ◽  
Electrical System ◽  
Turbine Generator

A power system can be said to be reliable if it has a high continuity of service. To achieve this, an operational arrangement is required to optimize installed power to supply the load to avoid overloading or over-supply of the system. Modjopanggoong Sugar Factory Tulungagung is one of the sugar producing industries, where the electrical system in this factory uses two power supply, which is using PLN supply and Turbine Generator Boiler (BTG). The use of more than one power supply resulted in an increase in the required electricity production costs. To solve this problem, in this research will be conducted a study to make efficient of electrical energy cost which is done by arranging supply of electric energy, that is using maximum supply of BTG and its deficiency supported PLN supply (alternative I), using PLN maximum supply and its deficiency is supported BTG supply alternative II) and only use PLN supply (alternative III). The results showed that energy efficiency can be done with the regulation of energy supply at the factory, that is in alternative I with savings Rp.430.025.007 (2.1%), alternative II with savings of Rp. 553,984,815 (2.7%), and alternative III with savings of Rp. 2.055.727.407 (10%).

scholarly journals A Comparison between Brown’s and Holt’s Double Exponential Smoothing for Forecasting Applied Generation Electrical Energies in Kurdistan Region

2021 ◽  
Vol 5 (2) ◽  
pp. 56-63
Author(s):  
Ameera W. Omer ◽  
Hazhar T. A. Blbas ◽  
Dler H. Kadir
Keyword(s):  
Time Series ◽  
Golden Section ◽  
Evaluation Process ◽  
Electrical Energy ◽  
Exponential Smoothing ◽  
Electricity Production ◽  
Kurdistan Region ◽  
Double Exponential ◽  
The Difference ◽  
Double Exponential Smoothing

The process of producing electricity from sources of energy is known as electricity production. Electric also isn't freely accessible in environment, thus it should be "manufactured" (i.e., converting another kinds of energy to electrical energy) by utilities with in electricity industry (transportation, distributing, and so on).Moreover, the objective of this study is to compared of Brown’s as well as Holt’s Double Exponential Smoothing also build a best forecasting time series model among two smoothing model forecasting, as well as focuses on optimizing characteristics to use the golden section technique.  This exponential smoothing approach has been one of the time series forecasting methods that would be used to forecast (Generation Electrical) with in Kurdistan area. The issue that arises with this technique is determining the appropriate parameters to reduce predict inaccuracy. In addition, Data used in this paper are (Generation Electrical) in Kurdistan region for (132) months from 2010 to 2020. The study revealed that such data is trending modeled, indicating that a double exponential smoothing (DES) approach from Brown & Holt can be used with the (Stratigraphic & Minitab) software. There are the same results but the Result of analysis more depend on the R-program. The difference among the forecast findings acquired with optimum parameters as well as the assaying data was utilized to assess the feasibility of the forecast by completing normality and randomness tests. Ultimately, the outcomes of parameterization show that the optimal value of α that in DES Brown is (0.22) as well as the optimal MAPE is 9.23616 percent, whereas in DES Holt the optimal is (0.95) as well as the optimal β is (0.05) via the optimal MAPE of 8.08586 percent. This MAPE of a DES Brown technique is greater than the MAPE of a DES Holt approach. Feasibility experiments revealed that both approaches are capable of predicting. Depending on the value of MAPE as well as evaluation process, DES Holt's was recognized as the main prediction model.

Engine Performance with Diesel-Biodiesel Blends Fuel and Emission Characteristics

2020 ◽  
Vol 38 (5A) ◽  
pp. 779-788
Author(s):  
Marwa N. Kareem ◽  
Adel M. Salih
Keyword(s):  
Sulfur Content ◽  
Diesel Fuel ◽  
Engine Performance ◽  
Esterification Reaction ◽  
Biodiesel Fuel ◽  
Exhaust Gas ◽  
Gas Temperature ◽  
Biodiesel Blends ◽  
Fuel Blends ◽  
Hc Emissions

In this study, the sunflowers oil was utilized as for producing biodiesel via a chemical operation, which is called trans-esterification reaction. Iraqi diesel fuel suffers from high sulfur content, which makes it one of the worst fuels in the world. This study is an attempt to improve the fuel specifications by reducing the sulfur content of the addition of biodiesel fuel to diesel where this fuel is free of sulfur and has a thermal energy that approaches to diesel.20%, 30% and 50% of Biodiesel fuel were added to the conventional diesel. Performance tests and pollutants of a four-stroke single-cylinder diesel engine were performed. The results indicated that the brake thermal efficiency a decreased by (4%, 16%, and 22%) for the B20, B30 and B50, respectively. The increase in specific fuel consumption was (60%, 33%, and 11%) for the B50, B30, and B20 fuels, respectively for the used fuel blends compared to neat diesel fuel. The engine exhaust gas emissions measures manifested a decreased of CO and HC were CO decreased by (13%), (39%) and (52%), and the HC emissions were lower by (6.3%), (32%), and (46%) for B20, B30 and B50 respectively, compared to diesel fuel. The reduction of exhaust gas temperature was (7%), (14%), and (32%) for B20, B30 and B50 respectively. The NOx emission increased with the increase in biodiesel blends ratio. For B50, the raise was (29.5%) in comparison with diesel fuel while for B30 and B20, the raise in the emissions of NOx was (18%) and...

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