Automatic mine ventilation control system
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The material describes a structure and facilities of an automatic mine ventilation system on a sample of a potash mine.
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While having good air quality is of paramount importance, but doing so, while saving energy is the sustainable need of the hour. Consistent Engineering Consultants participated in the HVACR Saudi Expo held at Riyadh International Exhibition Centre from 11th to 13th of March where our Mr. Ahmed Zeb, our Director of Operations presented a talk on Energy Optimisation and Building Ventilation Systems. He spoke about the need for energy conservation, energy optimisation and its role in structuring the building ventilation systems. Here's the presentation.
ELECTRONIC FUEL INJECTION
This document discusses the components and functions of an engine management system. It describes the key elements like the fuel system, airflow system, ignition, injection and sensors that are controlled by the Engine Control Unit (ECU). It also explains different modes of electronic fuel injection and how feedback from sensors is used for closed loop fuel control. Cold start systems and variable intake manifolds are covered as well.
Innovative compressed air case studies
This document summarizes several approaches to reducing compressed air loads, including addressing air leaks, reducing excessive pressure, improving efficiency of appropriate uses through pressure reduction and flow control, eliminating inappropriate uses, and implementing optimization solutions like installing flow controllers, solenoid valves, and sequencing controls. Case studies are presented showing potential energy and cost savings from implementing various load reduction measures at industrial facilities.
Control system for HVAC
This document proposes a control system for HVAC to save power and increase the lifespan of the system. It will include temperature control using a PLC and fan speed control through a remote switch. The goals are to reduce power consumption and costs while providing greater comfort. The methodology will include testing existing HVAC systems and designing controls using a PLC and variable frequency drive controlled by a remote switch. The budget is $184 and the schedule is 21 days to design, build, and test the prototype system.
Air compressor overview and basic selection guide
Provide an overview of Air compressors
Provide a generic guideline for Air compressor selection process
This presentation is prepared for target audience:Facility Managers, Utility Engineers. Technicians and Process associates
IRJET- Review Paper on the Control System of the Air Handling Units
1) The document discusses control strategies for air handling units (AHUs), including the use of variable frequency drives (VFDs) to save energy. VFDs allow the motor speed and airflow of AHUs to match system requirements, reducing energy usage compared to constant speed operation.
2) The paper reviews different VFD control strategies for AHUs in variable air volume systems, including constant static pressure control, optimized static pressure control, and total air volume control. Optimized static pressure control provides the greatest energy savings but requires networked variable air volume boxes.
3) Modeling and experiments were conducted to optimize a centrifugal fan housing system for use with VFDs. The optimized housing designs improved fan performance and
IRJET- Review Paper on the Control System of the Air Handling Units
1) The document discusses control strategies for air handling units (AHUs), including the use of variable frequency drives (VFDs) to save energy. VFDs allow the motor speed and airflow of AHUs to match system requirements, reducing energy usage compared to constant speed operation.
2) The paper reviews different VFD control strategies for AHUs in variable air volume systems, including constant static pressure control, optimized static pressure control, and total air volume control. Optimized static pressure control provides the greatest energy savings but requires networked variable air volume boxes.
3) Modeling and experiments were conducted to optimize a centrifugal fan housing system for use with VFDs. The optimized housing designs improved fan performance and
Energy Saving fan .ppt
This document provides details from an energy audit lecture on fans. It discusses terms used in fan performance such as CFM, static pressure, sone, BHP, RPM, and TSS. It also outlines the steps of an energy audit including collecting fan data, measuring parameters like power consumption, air flow rates and pressures. The document analyzes fan performance based on laws relating flow, pressure and power to fan speed. It explores energy conservation opportunities like variable speed drives and improving duct insulation. An example problem calculates the air-fuel ratio for a coal with given composition burned at 30% excess air.
Inlet system of an IC engine by Razin Sazzad Molla
This presentation was part of the course requirements of MEC 401 (Internal Combustion Engines) which I took in fall 2016. I made all the slides (participants in my group never works lol) and here I am uploading for the public if it can be of any help. Contact me for any info if needed.
====================
Razin Sazzad Molla
13107010@iubat.edu
====================
Development of a Measuring Apparatus for Aerodynamic Properties of Granular M...
Development of a Measuring Apparatus for Aerodynamic Properties of Granular M...CrimsonpublishersMCDA
In handling and processing of agricultural products, air or water is often used as a transport medium for separating the desirable product from unwanted materials. When an air stream is used for separating a product from its associated foreign materials, such as straw and chaff, knowledge of aerodynamic characteristics of all the particles involved is necessary. This helps to define the range of air velocities for effective separation of the grain from foreign materials. For this reason, the terminal velocity (Vt) has been used as an important aerodynamic characteristic of materials in such applications as pneumatic conveying and their separation from foreign materials.
For more open access journals in Crimson Publishers please click on link: https://crimsonpublishers.com
For more articles on journal of agronomy and crop science please click on below link: https://crimsonpublishers.com/mcda/Mpfi ppt
The document provides details about a seminar report on multi-point fuel injection systems. It discusses the main components of an MPFI system including the air intake system, fuel delivery system, and electronic control system. Sensors used in MPFI systems are described such as the manifold absolute pressure sensor, throttle position sensor, oxygen sensor, intake air temperature sensor, engine coolant temperature sensor, and vehicle speed sensor. Advantages of MPFI systems are more uniform air-fuel mixtures, improved fuel efficiency and emissions, and immediate acceleration response due to electronic control.
Waste Water aeration system challenges solutions
This document discusses aeration systems used in wastewater treatment. It covers the key components of an aeration system including air flow generation, distribution, and control. It notes that aeration is important for introducing oxygen to promote microorganism growth for organic waste decomposition. Accurate measurement and control of air flow rates is challenging due to varying oxygen demands. The document presents solutions from LEOMI Instruments for optimizing aeration processes through direct air flow measurement and dissolved oxygen monitoring for improved energy efficiency and cost savings.
Appa
The document discusses strategies to reduce energy consumption in laboratories by 50% through various HVAC, lighting, and equipment upgrades. It describes implementing centralized demand controlled ventilation to monitor air quality and reduce unoccupied air changes. Exhaust stack heights are increased and bypass air is reduced through analyzing minimum discharge velocities. Variable frequency drives are added to fans and pumps to allow modulation based on demand. Lighting is upgraded through replacing lamps and ballasts with more efficient options and adding occupancy sensors.
What Is Throttle valve
The document discusses air/fuel ratio control in combustion engines. It defines key combustion terminology like stoichiometric ratio and explains the importance of controlling the air/fuel ratio for efficiency and emissions. Different methods for controlling air/fuel ratio are presented, including inspirators, mechanically-linked valves, electronically-linked valves, and fully metered mass flow control. The advantages and disadvantages of each method are provided. Throttle valves, air management valves, and electronic throttle actuators are also described.
PRES.pptx
This document defines and explains boiler systems and their control schemes. It describes the key components of a boiler, including the burner, combustion chamber, heat exchanger and controls. It then evaluates the three main types of combustion control schemes - single-point positioning, parallel positioning and metering - and compares their costs and complexity. The document also explains the principles of combustion and the swell and shrink phenomenon in boiler level control. Finally, it outlines the three common types of drum level control systems - single element, two element and three element.
What is an AC Drive
An AC drive is a device used to control the speed of an electrical motor. The speed is controlled by changing the frequency of the electrical supply to the motor.
Fan choice ap-v3
Design of air cooled electronic systems involves fan sizing and air moving strategy for optimal performance. This article provides some useful hand calculations that may be implemented using spreadsheet. Using the rules provided in this presentation, the engineer can select appropriate size fans that provides sufficient amount of airflow at all altitudes of operation.
BUILDING SERVICES: BAS
Presentation on building automation system, briefly described about types of automation and functionality of automation.
Chapter 49
Automotive HVAC systems use vents, ducts, and air doors to control airflow and deliver air to the windshield, floor, or dash vents. Sensors monitor outside temperature, interior temperature, discharge air temperature and more. Actuators include dual, three, and variable-position types that are electrically controlled. Larger vehicles have separate rear HVAC units with a second heater core and evaporator. Hybrids employ idle-stop disabling or small electric compressors to provide air conditioning without the engine running.
Pneumatic systems
This document discusses low cost automation using pneumatic systems. It begins with an overview of automation and pneumatics, explaining that pneumatics can provide low cost automation solutions through reducing labor costs, machine investment costs, and increasing productivity. The document then covers various pneumatic components and applications, advantages and disadvantages of pneumatics, pneumatic standards, classifications of pneumatic elements, and examples of pneumatic circuits.
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Energy optimization & building ventilation systems 10.02.2020
Energy optimization & building ventilation systems 10.02.2020
IRJET- Review Paper on the Control System of the Air Handling Units
IRJET- Review Paper on the Control System of the Air Handling Units
IRJET- Review Paper on the Control System of the Air Handling Units
IRJET- Review Paper on the Control System of the Air Handling Units
Inlet system of an IC engine by Razin Sazzad Molla
Inlet system of an IC engine by Razin Sazzad Molla
Development of a Measuring Apparatus for Aerodynamic Properties of Granular M...
Development of a Measuring Apparatus for Aerodynamic Properties of Granular M...
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New techniques for characterising damage in rock slopes.pdf
rock mass characterization and New techniques for characterising damage in rock slopes
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODEL
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
一比一原版(IIT毕业证)伊利诺伊理工大学毕业证成绩单专业办理
IIT毕业证原版定制【微信：176555708】【伊利诺伊理工大学毕业证成绩单-学位证】【微信：176555708】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
◆◆◆◆◆ — — — — — — — — 【留学教育】留学归国服务中心 — — — — — -◆◆◆◆◆
【主营项目】
一.毕业证【微信：176555708】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微信：176555708】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
学历顾问：微信：176555708
Design and Analysis of Algorithms-DP,Backtracking,Graphs,B&B
Dynamic Programming
Backtracking
Techniques for Graphs
Branch and Bound
PROJECT FORMAT FOR EVS AMITY UNIVERSITY GWALIOR.ppt
Ppt on evs amity University project work.........................??????!?!?!?!!?!!?!!?/?/?/?/?/?
Harnessing WebAssembly for Real-time Stateless Streaming Pipelines
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll 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.
原版制作(unimelb毕业证书)墨尔本大学毕业证Offer一模一样
学校原件一模一样【微信：741003700 】《(unimelb毕业证书)墨尔本大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
[JPP-1] - (JEE 3.0) - Kinematics 1D - 14th May..pdf
Kinematics 11th jpp- 01. ( Solved ) unacademy namo kaul on 14th may...
在线办理(ANU毕业证书)澳洲国立大学毕业证录取通知书一模一样
学校原件一模一样【微信：741003700 】《(ANU毕业证书)澳洲国立大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
bank management system in java and mysql report1.pdf
truth is high but higher still is truth full living
Technical Drawings introduction to drawing of prisms
Method of technical Drawing of prisms,and cylinders.
一比一原版(UC Berkeley毕业证)加利福尼亚大学|伯克利分校毕业证成绩单专业办理
UC Berkeley毕业证原版定制【微信：176555708】【加利福尼亚大学|伯克利分校毕业证成绩单-学位证】【微信：176555708】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
◆◆◆◆◆ — — — — — — — — 【留学教育】留学归国服务中心 — — — — — -◆◆◆◆◆
【主营项目】
一.毕业证【微信：176555708】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微信：176555708】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
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Automatic mine ventilation control system
- 1. Automatic ventilation control system The Third Mine, Belaruskali (Republic of Belarus)
- 2. The purpose is to reduce operating ventilation cost
- 4. Which elements does the system consist of?
- 6. Recirculation Fan Units Main Fan Unit
- 8. How does the equipment look?
- 14. How does the system work?
- 15. Main Fan Operating Speed Adjusting
- 16. Main Fan Operating Speed Adjusting Controlled Airflow Recirculation
- 17. Automatic Air Flow Redistribution Main Fan Operating Speed Adjusting Controlled Airflow Recirculation
- 18. Automatic Air Flow Redistribution Main Fan Operating Speed Adjusting Controlled Airflow Recirculation Gas concentration sensors are used to determine a critical reused air flow rate which is regulated by adjusting recirculation fan unit operating speed Air flow is distributed depending on a current air demand in mine areas. Redistribution is performed by setting a new angle for regulator’s leafs. Angles for regulators’ leafs are determined automatically by required airflow values for different mine areas. Total mine air flow is determined by all underground consumers requirements and regulated by fan operating speed which is adjusted via drive frequency.
- 19. What a result?
- 20. Total Airflow 510 m3 /s 360 m3 /s Main Fan Power Efficiency 2.7 MW 1.6 MW Air Distribution Disbalance 18 % 7 % Capital Cost $4 000 000 Savings in Annual Operating Cost $1 600 000