Presentasi mengenai materi perpindahan panas pada dinding lapis berbentuk bola. Pada presentasi ini memuat contoh-contoh kasus dari textbook dan sumber dari internet.
Dokumen tersebut membahas tentang konduksi stedi pada dinding datar dan konsep tahanan termal. Konduksi stedi hanya terjadi pada satu arah yang tegak lurus dengan bidang dinding, sedangkan laju pindah panasnya berbanding lurus dengan konduktivitas, luas permukaan, dan beda suhu tetapi berbanding terbalik dengan tebal dinding. Konsep tahanan termal dapat digunakan untuk menganalisis rangkaian perpindahan panas mel
Dokumen tersebut membahas tentang tiga cara perpindahan kalor yaitu konduksi, konveksi, dan radiasi. Dijelaskan definisi dan contoh-contoh setiap jenis perpindahan kalor beserta faktor-faktor yang mempengaruhinya. Terdapat pula latihan soal untuk menerangkan konsep-konsep yang diajarkan.
Dokumen tersebut membahas tentang konsep dasar perpindahan panas melalui konduksi, konveksi, dan radiasi serta aplikasinya dalam industri. Dibahas pula mekanisme perpindahan panas pada berbagai koordinat seperti bidang datar, silinder, dan bola."
Buku ini memberikan contoh soal penyelesaian alat penukar kalor (heat exchanger) untuk pipa ganda dan shell dan tube, meliputi teori dasar tentang koefisien perpindahan kalor, perbedaan temperatur rata-rata logaritma, dan metode efektivitas-NTU."
Dokumen tersebut membahas tentang konduksi stedi pada dinding datar dan konsep tahanan termal. Konduksi stedi hanya terjadi pada satu arah yang tegak lurus dengan bidang dinding, sedangkan laju pindah panasnya berbanding lurus dengan konduktivitas, luas permukaan, dan beda suhu tetapi berbanding terbalik dengan tebal dinding. Konsep tahanan termal dapat digunakan untuk menganalisis rangkaian perpindahan panas mel
Dokumen tersebut membahas tentang tiga cara perpindahan kalor yaitu konduksi, konveksi, dan radiasi. Dijelaskan definisi dan contoh-contoh setiap jenis perpindahan kalor beserta faktor-faktor yang mempengaruhinya. Terdapat pula latihan soal untuk menerangkan konsep-konsep yang diajarkan.
Dokumen tersebut membahas tentang konsep dasar perpindahan panas melalui konduksi, konveksi, dan radiasi serta aplikasinya dalam industri. Dibahas pula mekanisme perpindahan panas pada berbagai koordinat seperti bidang datar, silinder, dan bola."
Buku ini memberikan contoh soal penyelesaian alat penukar kalor (heat exchanger) untuk pipa ganda dan shell dan tube, meliputi teori dasar tentang koefisien perpindahan kalor, perbedaan temperatur rata-rata logaritma, dan metode efektivitas-NTU."
Modul perpindahan panas konduksi steady state one dimensionalAli Hasimi Pane
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Modul perpindahan panas konduksi steady sate-one dimensional ini adalah penjabaran atau penjelasan sederhana untuk persamaan-persamaan matematika yang berlaku pada perpindahan panas konduksi untuk benda padat.
Dokumen tersebut berisi rumus-rumus dasar fisika SMA yang mencakup besaran dan satuan fisika, vektor, kelajuan dan kecepatan, perlajuan dan percepatan, gerak lurus beraturan dan berubah beraturan, gerak jatuh bebas, gerak vertikal ke atas, dinamika gerak lurus, gaya normal dan gaya gesek, katrol tetap, gerak parabola, gerak melingkar beraturan, gaya gravitasi, usaha dan energi, momentum, impuls dan tumbu
Dokumen tersebut membahas tentang double pipe heat exchanger, yaitu jenis penukar panas yang terdiri dari dua pipa konsentris dimana satu fluida mengalir di dalam pipa dan fluida lainnya mengalir di ruang antar pipa. Dokumen juga menjelaskan prinsip kerja, kelebihan, dan kekurangannya.
Analisa perpindahan panas konveksi paksa pada pipa ellipseAli Hasimi Pane
Β
Studi kasus ini melakukan analisis perpindahan panas konveksi paksa pada pipa berbentuk ellipse menggunakan perangkat lunak CFD. Analisis dilakukan untuk aliran udara dengan kecepatan 0,5-1,5 m/s pada pipa dengan diameter 10 cm dan panjang ellipse 20 cm yang dijaga konstan pada 333K. Hasil simulasi CFD menunjukkan laju perpindahan panas tidak berbeda lebih dari 5% dari perhitungan manual berdasarkan persama
Dokumen tersebut membahas mengenai alat penukar panas (heat exchanger) yang berfungsi untuk memindahkan panas antara dua fluida. Jenis-jenis alat penukar panas dijelaskan seperti penukar panas pipa rangkap, penukar panas cangkang dan buluh, serta penukar panas pelat dan bingkai. Faktor yang mempengaruhi efektivitas alat penukar panas juga dibahas.
Dokumen tersebut memberikan penjelasan mengenai langkah-langkah simulasi proses menggunakan perangkat lunak HYSYS dan beberapa contoh aplikasi simulasi proses termasuk pemanasan, pendinginan, reaksi, dan pemisahan.
Dokumen tersebut membahas tentang filtrasi sebagai proses pemisahan partikel padat dari campuran cairan dengan mengalirkan cairan melalui media berpori. Dokumen tersebut menjelaskan prinsip, faktor yang berpengaruh, jenis filtrasi berdasarkan prinsip kerja seperti tekanan, gravitasi, dan vakum serta contoh alat filtrasi seperti plate and frame filter dan rotary vacuum filter. Dokumen tersebut juga membahas penelitian kinerja filtrasi
Modul thermodinamika (penyelesaian soal siklus pembangkit daya)Ali Hasimi Pane
Β
Modul ini berisi contoh soal penyelesaian siklus pembangkit daya termasuk siklus Otto, Diesel, Dual, dan Rankine. Juga membahas analisis manual dasar tentang heat exchanger, sistem uap, dan sistem pendinginan. Buku ini ditujukan untuk mahasiswa teknik, pengajar, dan masyarakat umum yang membutuhkan. [ringkasan 3 kalimat]
Kalor ada dalam dua bentuk, yaitu kalor sensible dan kalor laten. Kalor sensible menyebabkan perubahan suhu tanpa perubahan fase, sedangkan kalor laten diperlukan untuk mengubah fase zat pada suhu yang sama. Rumus untuk menghitung kalor sensible dan laten diberikan beserta contoh soalnya.
The document summarizes solutions to an in-class exercise on heat transfer problems. It includes:
1) Calculation of heat loss through a window glass using conduction, finding higher loss for thinner glass.
2) Use of the convection equation to find heat transfer from hot air to a plate.
3) Calculation of heat loss from a person by radiation to room walls at different temperatures.
4) Use of conduction, convection, radiation equations to determine the effective thermal conductivity of a wall from its inner and outer temperatures and heat transfer rates.
The document summarizes the solution to a heat transfer problem involving a slab of rubber initially at 20Β°C placed between steel plates at 140Β°C. It is calculated that:
1) The heating time for the rubber's midplane to reach 132Β°C is 10.81 seconds.
2) The temperature 0.65cm from the metal after this time is 117.8Β°C.
3) The time required for the temperature at this point to reach 132Β°C is 2.7 seconds.
Modul perpindahan panas konduksi steady state one dimensionalAli Hasimi Pane
Β
Modul perpindahan panas konduksi steady sate-one dimensional ini adalah penjabaran atau penjelasan sederhana untuk persamaan-persamaan matematika yang berlaku pada perpindahan panas konduksi untuk benda padat.
Dokumen tersebut berisi rumus-rumus dasar fisika SMA yang mencakup besaran dan satuan fisika, vektor, kelajuan dan kecepatan, perlajuan dan percepatan, gerak lurus beraturan dan berubah beraturan, gerak jatuh bebas, gerak vertikal ke atas, dinamika gerak lurus, gaya normal dan gaya gesek, katrol tetap, gerak parabola, gerak melingkar beraturan, gaya gravitasi, usaha dan energi, momentum, impuls dan tumbu
Dokumen tersebut membahas tentang double pipe heat exchanger, yaitu jenis penukar panas yang terdiri dari dua pipa konsentris dimana satu fluida mengalir di dalam pipa dan fluida lainnya mengalir di ruang antar pipa. Dokumen juga menjelaskan prinsip kerja, kelebihan, dan kekurangannya.
Analisa perpindahan panas konveksi paksa pada pipa ellipseAli Hasimi Pane
Β
Studi kasus ini melakukan analisis perpindahan panas konveksi paksa pada pipa berbentuk ellipse menggunakan perangkat lunak CFD. Analisis dilakukan untuk aliran udara dengan kecepatan 0,5-1,5 m/s pada pipa dengan diameter 10 cm dan panjang ellipse 20 cm yang dijaga konstan pada 333K. Hasil simulasi CFD menunjukkan laju perpindahan panas tidak berbeda lebih dari 5% dari perhitungan manual berdasarkan persama
Dokumen tersebut membahas mengenai alat penukar panas (heat exchanger) yang berfungsi untuk memindahkan panas antara dua fluida. Jenis-jenis alat penukar panas dijelaskan seperti penukar panas pipa rangkap, penukar panas cangkang dan buluh, serta penukar panas pelat dan bingkai. Faktor yang mempengaruhi efektivitas alat penukar panas juga dibahas.
Dokumen tersebut memberikan penjelasan mengenai langkah-langkah simulasi proses menggunakan perangkat lunak HYSYS dan beberapa contoh aplikasi simulasi proses termasuk pemanasan, pendinginan, reaksi, dan pemisahan.
Dokumen tersebut membahas tentang filtrasi sebagai proses pemisahan partikel padat dari campuran cairan dengan mengalirkan cairan melalui media berpori. Dokumen tersebut menjelaskan prinsip, faktor yang berpengaruh, jenis filtrasi berdasarkan prinsip kerja seperti tekanan, gravitasi, dan vakum serta contoh alat filtrasi seperti plate and frame filter dan rotary vacuum filter. Dokumen tersebut juga membahas penelitian kinerja filtrasi
Modul thermodinamika (penyelesaian soal siklus pembangkit daya)Ali Hasimi Pane
Β
Modul ini berisi contoh soal penyelesaian siklus pembangkit daya termasuk siklus Otto, Diesel, Dual, dan Rankine. Juga membahas analisis manual dasar tentang heat exchanger, sistem uap, dan sistem pendinginan. Buku ini ditujukan untuk mahasiswa teknik, pengajar, dan masyarakat umum yang membutuhkan. [ringkasan 3 kalimat]
Kalor ada dalam dua bentuk, yaitu kalor sensible dan kalor laten. Kalor sensible menyebabkan perubahan suhu tanpa perubahan fase, sedangkan kalor laten diperlukan untuk mengubah fase zat pada suhu yang sama. Rumus untuk menghitung kalor sensible dan laten diberikan beserta contoh soalnya.
The document summarizes solutions to an in-class exercise on heat transfer problems. It includes:
1) Calculation of heat loss through a window glass using conduction, finding higher loss for thinner glass.
2) Use of the convection equation to find heat transfer from hot air to a plate.
3) Calculation of heat loss from a person by radiation to room walls at different temperatures.
4) Use of conduction, convection, radiation equations to determine the effective thermal conductivity of a wall from its inner and outer temperatures and heat transfer rates.
The document summarizes the solution to a heat transfer problem involving a slab of rubber initially at 20Β°C placed between steel plates at 140Β°C. It is calculated that:
1) The heating time for the rubber's midplane to reach 132Β°C is 10.81 seconds.
2) The temperature 0.65cm from the metal after this time is 117.8Β°C.
3) The time required for the temperature at this point to reach 132Β°C is 2.7 seconds.
This document contains a tutorial for CHE2163 with 5 questions. It provides the relevant equations, assumptions, and step-by-step working to calculate various heat transfer rates. For question 1, it calculates the heat transfer rate from a module with air flowing over it. For question 2, it finds the initial and changing temperature of a heating plate. For question 3, it determines the heat loss from an uninsulated steam pipe. For questions 4 and 5, it analyzes heat transfer from pin fins and an underwater instrument pod respectively.
The document describes a spherical furnace with an inner radius of 1m and outer radius of 1.2m. The wall has a thermal conductivity of 0.5 W/mK. The inner temperature is 1100Β°C and outer is 80Β°C. It asks to calculate the total heat loss over 24 hours and the heat flux and temperature at a radius of 1.1m. It then describes a 1m thick slab initially at 150Β°C that is exposed to 250Β°C fluid on one side with an insulated rear side. It asks to construct a temperature profile table using finite differences over 4000 seconds.
The document describes a problem calculating the heat loss from a furnace with inner dimensions of 1m x 1.2m x 0.75m and 11cm thick refractory walls. It provides the inner and outer surface temperatures and conductivity and calculates the total heat loss as 881798399.8 J over 24 hours by conduction through the walls. A second problem calculates the heat loss from a duct with ceramic and insulation layers given temperatures, thicknesses, and conductivities. It uses an iterative process to calculate the interface temperature and heat loss.
The document describes a problem calculating the heat loss from a furnace with inner dimensions of 1m x 1.2m x 0.75m and 11cm thick refractory walls. It provides the inner and outer surface temperatures and conductivity and calculates the total heat loss as 881798399.8 J over 24 hours by conduction through the walls. A second problem calculates the heat loss from a duct with ceramic and insulation layers given temperatures, thicknesses, and conductivities. It uses an iterative process to calculate the interface temperature and heat loss.
The document provides information about the dimensions and material properties of an electric furnace. The furnace has firebrick walls that are 2m thick with a thermal conductivity of 1.12 W/mK. It also has a quartz observation window that is 5x5x0.6 cm with a thermal conductivity of 0.07 W/mK. Given the inner surface temperature is 1100Β°C and outer is 121Β°C, the heat loss from the furnace per unit time is calculated to be 150.523W.
The document contains two engineering problems involving heat transfer calculations:
1) Calculating heat loss from a spherical furnace wall over 24 hours, and the temperature at a radius of 1.1m.
2) Modeling transient heat conduction in a slab, constructing a temperature profile table up to 4000 seconds using finite differences.
The problems provide heat transfer parameters and geometry, and require calculating heat loss, temperature, or constructing a temperature profile table.
The document contains two engineering problems involving heat transfer calculations:
1) Calculating heat loss from a spherical furnace wall over 24 hours, finding the temperature at a radius of 1.1m is 543.64Β°C.
2) Modeling transient heat transfer in a slab, constructing a temperature profile table up to 4000 seconds using finite differences, with the temperature at 1500s being 150.8Β°C.
This document contains 20 multiple choice problems related to mechanical engineering. The problems cover topics such as fluid mechanics, thermodynamics, heat transfer, and other mechanical engineering principles. They involve calculations related to things like tank volumes, pressure differences, flow rates, heat transfer between substances, and more. The questions provide relevant equations, known values, and ask the reader to determine unknown values or temperatures based on the given information.
The document provides information about the heat loss calculation of a furnace with inner dimensions of 1m x 1.2m x 0.75m and wall thickness of 11 cm made of refractory material. The inner and outer surface temperatures are 200Β°C and 38Β°C respectively. The total heat loss by conduction in 24 hours is calculated to be 801.65 MJ.
The document provides information about calculating heat loss from a furnace and exhaust duct. It gives dimensions, material properties, and temperature values. It then shows calculations to determine the total heat loss over 24 hours from the furnace, which is 801.65 MJ. For the exhaust duct, it uses a trial-and-error method to calculate the interface temperature and heat loss.
This document contains multiple problems related to heat transfer through plane walls, cylindrical walls, and composite walls. It provides the relevant equations, known values, and steps to solve for unknown values related to heat transfer, temperature distribution, thermal conductivity, heat flux, and critical radius for a variety of wall configurations and materials.
The document contains several engineering problems related to heat transfer and thermodynamics. Problem 16 asks the student to use a numerical finite difference method to construct a temperature profile table for a 1m thick slab initially at 150Β°C that is suddenly exposed to 250Β°C fluid on one face and insulated on the other, using 4 slices and time steps up to 4000s. Problem 4.1-1 asks the student to calculate the heat loss per square meter for a temporary insulating wall with given temperatures, thickness, and material properties. Problem 5.3-6 asks the student to determine the time for a furnace wall lining initially at 100Β°F to reach 500Β°F at a depth of 0.5ft, given properties
This document contains details regarding an examination for a heat and mass transfer course, including:
1) The exam has 3 parts consisting of short answer, long answer, and case study questions worth 20, 65, and 15 marks respectively.
2) Sample questions assess topics like fin analysis, boundary layers, heat exchanger design, phase change processes, and radiation heat transfer.
3) One long answer question involves calculating temperatures in a multi-layer wall and determining the heat loss, while another evaluates melting of an iceberg towed through water.
The document summarizes key concepts about the transfer of heat through conduction, convection, and radiation. It provides examples of calculating the rate of heat transfer through various materials using their thermal conductivity and the temperature difference across them. It also discusses calculating heat transfer through composite walls and rates of thermal radiation from blackbody objects based on their temperature and emissivity.
The document contains multiple engineering problems related to heat transfer. Problem 1 calculates the heat loss per meter of a steam pipe covered with an insulating coating. Problem 9 calculates the heat loss from an electric furnace with firebrick walls and a quartz window. Problem 5.2-1 involves calculating the time for a copper wire to cool from an initial to final temperature under different convection coefficients. Problem 4.3-4 calculates the heat loss and steam condensed per hour for an insulated steam pipeline.
The document contains multiple engineering problems related to heat transfer. Problem 1 calculates the heat loss per meter of a steam pipe covered with an insulating coating. Problem 9 calculates the heat loss from an electric furnace with firebrick walls and a quartz window. Problem 5.2-1 involves calculating the time for a copper wire to cool from an initial to final temperature under different convection coefficients. Problem 4.3-4 calculates the heat loss and steam condensed per hour for an insulated steam pipeline.
This document discusses solar water heating using non-focusing solar collectors. It describes how collectors work to absorb solar radiation and transfer heat to water. There are two main types of non-focusing collectors: flat plate and evacuated tube collectors. The document provides equations to calculate the efficiency of collectors and factors that affect efficiency like transmittance, absorptance, and heat loss. It also discusses using thermosyphons to passively circulate water in solar hot water systems without a pump.
The document contains information about heat transfer calculations for different scenarios:
1) Calculating the heat removal of a cooling coil made of stainless steel with given temperatures and properties.
2) Calculating the center temperature of an orange exposed to cold air for 6 hours using given properties and dimensions.
3) Calculating the time required and intermediate temperature for a rubber slab to reach a given temperature when placed between heated plates.
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International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
ACEP Magazine edition 4th launched on 05.06.2024Rahul
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This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
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K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
UNLOCKING HEALTHCARE 4.0: NAVIGATING CRITICAL SUCCESS FACTORS FOR EFFECTIVE I...amsjournal
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The Fourth Industrial Revolution is transforming industries, including healthcare, by integrating digital,
physical, and biological technologies. This study examines the integration of 4.0 technologies into
healthcare, identifying success factors and challenges through interviews with 70 stakeholders from 33
countries. Healthcare is evolving significantly, with varied objectives across nations aiming to improve
population health. The study explores stakeholders' perceptions on critical success factors, identifying
challenges such as insufficiently trained personnel, organizational silos, and structural barriers to data
exchange. Facilitators for integration include cost reduction initiatives and interoperability policies.
Technologies like IoT, Big Data, AI, Machine Learning, and robotics enhance diagnostics, treatment
precision, and real-time monitoring, reducing errors and optimizing resource utilization. Automation
improves employee satisfaction and patient care, while Blockchain and telemedicine drive cost reductions.
Successful integration requires skilled professionals and supportive policies, promising efficient resource
use, lower error rates, and accelerated processes, leading to optimized global healthcare outcomes.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
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Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
CHINAβS GEO-ECONOMIC OUTREACH IN CENTRAL ASIAN COUNTRIES AND FUTURE PROSPECTjpsjournal1
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The rivalry between prominent international actors for dominance over Central Asia's hydrocarbon
reserves and the ancient silk trade route, along with China's diplomatic endeavours in the area, has been
referred to as the "New Great Game." This research centres on the power struggle, considering
geopolitical, geostrategic, and geoeconomic variables. Topics including trade, political hegemony, oil
politics, and conventional and nontraditional security are all explored and explained by the researcher.
Using Mackinder's Heartland, Spykman Rimland, and Hegemonic Stability theories, examines China's role
in Central Asia. This study adheres to the empirical epistemological method and has taken care of
objectivity. This study analyze primary and secondary research documents critically to elaborate role of
chinaβs geo economic outreach in central Asian countries and its future prospect. China is thriving in trade,
pipeline politics, and winning states, according to this study, thanks to important instruments like the
Shanghai Cooperation Organisation and the Belt and Road Economic Initiative. According to this study,
China is seeing significant success in commerce, pipeline politics, and gaining influence on other
governments. This success may be attributed to the effective utilisation of key tools such as the Shanghai
Cooperation Organisation and the Belt and Road Economic Initiative.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
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Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
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This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
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Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, weβll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Harnessing WebAssembly for Real-time Stateless Streaming Pipelines
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Perpindahan Panas Pada Dinding Lapis Bola - Operasi Perpindahan Kalor
1. SLIDESMANIA.COM
PERPINDAHAN PANAS KONDUKSI PADA DINDING
LAPIS RANGKAP BERBENTUK BOLA
(HEAT CONDUCTION THROUGH SPHERICAL WALLS)
Kelompok VII
Faiprianda Assyari Rahmatullah 1807111319
Niken Triani Klaway Reza 1807111284
Novia Yolanda 1807111316
2. SLIDESMANIA.COM
CONTOH SOAL I
Determine the heat transfer rate through a
spherical copper shell of thermal conductivity
k = 386 W/moC, inner radius ri = 2 cm, and
outer radius ro = 6 cm if the inner surface is
kept at Ti = 200oC and the outer surface at To =
100oC
JAWAB
π =
βπ
βπ π‘β
=
4π(ππ β ππ)
1
ππ
β
1
ππ
π
π = 386
π
πππΆ
ππ = 2 ππ = 0.02 m
ππ = 6 ππ = 0.06 π
ππ = 200β
ππ = 100β
π =
4(3.14)(200 β 100)
1
0.02
β
1
0.06
386
π = 14544.48 π
Sumber: Necati Ozisik, 1985, Heat
Transfer: A Basic Approach
ri
ro
Ti
To π = 14.54448 ππ
3. SLIDESMANIA.COM
CONTOH SOAL III
Consider a spherical container of inner
radius ri = 8 cm, outer radius ro = 10 cm, and
thermal conductivity k = 45 W/moC. The
inner and outer surfaces of the container
are maintained at constant temperatures of
Ti = 200oC and To = 80oC, respectively, as a
result of some chemical reactions occurring
inside. Determine the heat transfer !
JAWAB
π =
βπ
βπ π‘β
=
4π(ππ βππ)
1
ππ
β
1
ππ
π
π = 45
π
πππΆ
ππ = 8 ππ = 0.08m
ππ = 10 ππ = 0.1 π
ππ = 200β
ππ = 80β π =
4(3.14)(200 β 80)
1
0.08
β
1
0.1
45
π = 27129.6 π
π = 27.1296 ππ
Sumber: Yunus A. Cengel, 2015,
Heat and Mass Transfer
4. SLIDESMANIA.COM
CONTOH SOAL IV
A spherical container with thermal conductivity (k = 12.5
Btu/hr.ft.oF) with 10 in inside diameter (di) and 12 outside
diameter (do) is covered by 3 in layer of asbestos insulation
have thermal conductivity (k = 0.14 Btu/hr.ft.oF). If the
inside wall temperature is 550oF and outside temperature is
100oF, calculate the heat transfer!
JAWAB
π1 = 12.5
π΅π‘π’
βπ. ππ‘. ππΉ
π2 = 0.14
π΅π‘π’
βπ. ππ‘. ππΉ
π1 = 5 ππ = 0.42 ππ‘
π2 = 6 ππ = 0.5 ππ‘
π3 = 6 ππ + 3 ππ = 9 ππ = 0.75
ππ = 550ππΉ
ππ = 100ππΉ
π =
βπ
βπ π‘β
=
4π(ππ β ππ)
1
π1
β
1
π2
π1
+
1
π2
β
1
π3
π2
π =
4(3.14)(550 β 100)
1
0.42
β
1
0.5
12.5
+
1
0.5
β
1
0.75
0.14
π = 1179.372 π΅π‘π’/βπ
Sumber: Frank Keith, 2011, Principles of Heat Transfer