The document discusses indirect-direct evaporative cooling (IDEC) air systems. IDEC uses two stages - first air is cooled indirectly in a heat exchanger without adding moisture. This cooled air is then further cooled directly through evaporation by adding moisture before being distributed. IDEC provides up to 40% lower humidity and 60% lower power consumption than alternative systems. Various IDEC models are presented along with their specifications and components. Performance graphs show the system can maintain cooler, consistent temperatures even at higher outdoor temperatures and humidity levels. Optional features and contact details are also listed.
TeraSpin, a leading manufacturer of precision textile spinning machinery components has a facility at Sari, Ahmedabad, India. Find out how they brought down cooling costs, while maintaining high IAQ at their LEED Gold certified Sari facility.
For more information visit us at: http://ategroup.com/
To know more about the HMX's solutions visit http://ategroup.com/hmx/
Download the complete case study: http://ategroup.com/wp-content/uploads/case-studies/brochure_pdf1469075671.pdf
Design and Performance Evaluation of an Indirect Evaporative Air Cooler IDES Editor
This paper presents design of small indirect evaporative air cooler which is developed as a cross flow heat exchanger and its performance evaluation under controlled environmental conditions. The experimental results are compared with the results of an analytical model developed by assuming constant water film temperature on the heat exchanger tubes. The experimental results of the cooler show a satisfactory agreement with the analytical values. The analytical results show that low inlet humidity and higher inlet temperature of the comfort air results in an increase in both cooling effect and cooling capacity. A very low velocity of comfort air gives more cooling effect but the cooling capacity
declines. For given inlet conditions and for given length of the tubes, a tube diameter of around 2 mm results in better cooling capacity.
Storage of commodities at low temperature increases the shelf life. Proper understanding of storage system is necessary for desire cooling effect. Basic information regarding refrigeration is explained here. Design parameters are also give to be considered.
TeraSpin, a leading manufacturer of precision textile spinning machinery components has a facility at Sari, Ahmedabad, India. Find out how they brought down cooling costs, while maintaining high IAQ at their LEED Gold certified Sari facility.
For more information visit us at: http://ategroup.com/
To know more about the HMX's solutions visit http://ategroup.com/hmx/
Download the complete case study: http://ategroup.com/wp-content/uploads/case-studies/brochure_pdf1469075671.pdf
Design and Performance Evaluation of an Indirect Evaporative Air Cooler IDES Editor
This paper presents design of small indirect evaporative air cooler which is developed as a cross flow heat exchanger and its performance evaluation under controlled environmental conditions. The experimental results are compared with the results of an analytical model developed by assuming constant water film temperature on the heat exchanger tubes. The experimental results of the cooler show a satisfactory agreement with the analytical values. The analytical results show that low inlet humidity and higher inlet temperature of the comfort air results in an increase in both cooling effect and cooling capacity. A very low velocity of comfort air gives more cooling effect but the cooling capacity
declines. For given inlet conditions and for given length of the tubes, a tube diameter of around 2 mm results in better cooling capacity.
Storage of commodities at low temperature increases the shelf life. Proper understanding of storage system is necessary for desire cooling effect. Basic information regarding refrigeration is explained here. Design parameters are also give to be considered.
Energy efficiency in Refrigeration Systemseecfncci
HVAC and refrigeration systems consume a lot of electricity in Nepalese Industries. Therefore, improving the efficiency of these systems can lead to huge cost savings. This presentation was held in the context of energy auditor training in Nepal in 2012 that was supported GIZ/NEEP Programme.
Presentation Outline:-
The Principles of Basic Refrigeration
Basic Refrigeration Cycle
There are countless applications for refrigeration plants now.
How do things get colder
Main Components
Accessories
Pressure
Pressure And Temperature
Refrigerator used for Cooling
Analysis of the Carnot Refrigerator
Terminology
The Vapor Compression Refrigeration Cycle
The Pressure-Enthalpy Diagram
Vapor Compression Refrigeration Analysis
VCR Cycle Irreversibilities
Presented at the HMX IDECool Launch for Channel Partners, Pune, 10-11 February 2017, "Trends in Comfort Cooling" discusses the history of cooling, the contribution of cooling to global warming, trends, and more. Visit http://ategroup.com/hmx/why-evaporative/ to learn more or e-mail us at contactus(at)ateindia(dot)com.
Refrigeration and Air Conditioning
1.Refrigeration System
Two types of valves are used on machine air conditioning systems:
Internally-equalized valve - most common
Externally-equalized valve special control
Internally-Equalized Expansion Valve
The refrigerant enters the inlet and screen as a high-pressure liquid. The refrigerant flow is restricted by a metered orifice through which it must pass.
As the refrigerant passes through this orifice, it changes from a high-pressure liquid to a low-pressure liquid (or passes from the
high side to the low side of the system).
Let's review briefly what happens to the refrigerant as we change its pressure.
As a high-pressure liquid, the boiling point of the refrigerant has been raised in direct proportion to its pressure. This has concentrated its heat content into a small area, raising the temperature of the refrigerant higher than that of the air passing over the condenser. This heat will then transfer from the warmer refrigerant to the cooler air, which condenses the refrigerant to a liquid.
The heat transferred into the air is called latent heat of condensation. Four pounds (1.8 kg) of refrigerant flowing per minute through the orifice will result in 12,000 Btu (12.7 MJ) per hour transferred, which is designated a one-ton unit. Six pounds (2.7 kg) of flow per minute will result in 18,000 Btu (19.0 MJ) per hour, or a one and one-half ton unit.
Valve details
The refrigerant flow through the metered orifice is extremely important, anything restricting the flow will affect the entire system.
If the area cooled by the evaporator suddenly gets colder, the heat transfer requirements change. If the expansion valve continued to feed the same amount of refrigerant to the evaporator, the fins and coils would get colder until they eventually freeze over with ice and the air flow is stopped.
A thermal bulb has a small line filled with C02 is attached to the evaporator tailpipe. If the temperature on the tail pipe raises, the gas will expand and cause pressure against the diaphragm. This expansion will then move the seat away from the orifice,
refrigerator and Air Condition,application, unit and COP, COP, types of refrigeration system, ideal properties for a refrigerant , Refrigeration Cycle, Bell- Colman Cycle, Vapour Compression Cycle,
The presentation of a Lecture on optimization of refrigeration systems given during a workshop in IITD. Includes an illustration and some generic ideas.
CAREL's Enrico Boscaro illustrates at ASHRAE Malaysia seminar the potentials of Indirect Evaporative Cooling technology as an energy savings instrument in cooling applications, in particular for the Make up Air handlers sector.
Energy efficiency in Refrigeration Systemseecfncci
HVAC and refrigeration systems consume a lot of electricity in Nepalese Industries. Therefore, improving the efficiency of these systems can lead to huge cost savings. This presentation was held in the context of energy auditor training in Nepal in 2012 that was supported GIZ/NEEP Programme.
Presentation Outline:-
The Principles of Basic Refrigeration
Basic Refrigeration Cycle
There are countless applications for refrigeration plants now.
How do things get colder
Main Components
Accessories
Pressure
Pressure And Temperature
Refrigerator used for Cooling
Analysis of the Carnot Refrigerator
Terminology
The Vapor Compression Refrigeration Cycle
The Pressure-Enthalpy Diagram
Vapor Compression Refrigeration Analysis
VCR Cycle Irreversibilities
Presented at the HMX IDECool Launch for Channel Partners, Pune, 10-11 February 2017, "Trends in Comfort Cooling" discusses the history of cooling, the contribution of cooling to global warming, trends, and more. Visit http://ategroup.com/hmx/why-evaporative/ to learn more or e-mail us at contactus(at)ateindia(dot)com.
Refrigeration and Air Conditioning
1.Refrigeration System
Two types of valves are used on machine air conditioning systems:
Internally-equalized valve - most common
Externally-equalized valve special control
Internally-Equalized Expansion Valve
The refrigerant enters the inlet and screen as a high-pressure liquid. The refrigerant flow is restricted by a metered orifice through which it must pass.
As the refrigerant passes through this orifice, it changes from a high-pressure liquid to a low-pressure liquid (or passes from the
high side to the low side of the system).
Let's review briefly what happens to the refrigerant as we change its pressure.
As a high-pressure liquid, the boiling point of the refrigerant has been raised in direct proportion to its pressure. This has concentrated its heat content into a small area, raising the temperature of the refrigerant higher than that of the air passing over the condenser. This heat will then transfer from the warmer refrigerant to the cooler air, which condenses the refrigerant to a liquid.
The heat transferred into the air is called latent heat of condensation. Four pounds (1.8 kg) of refrigerant flowing per minute through the orifice will result in 12,000 Btu (12.7 MJ) per hour transferred, which is designated a one-ton unit. Six pounds (2.7 kg) of flow per minute will result in 18,000 Btu (19.0 MJ) per hour, or a one and one-half ton unit.
Valve details
The refrigerant flow through the metered orifice is extremely important, anything restricting the flow will affect the entire system.
If the area cooled by the evaporator suddenly gets colder, the heat transfer requirements change. If the expansion valve continued to feed the same amount of refrigerant to the evaporator, the fins and coils would get colder until they eventually freeze over with ice and the air flow is stopped.
A thermal bulb has a small line filled with C02 is attached to the evaporator tailpipe. If the temperature on the tail pipe raises, the gas will expand and cause pressure against the diaphragm. This expansion will then move the seat away from the orifice,
refrigerator and Air Condition,application, unit and COP, COP, types of refrigeration system, ideal properties for a refrigerant , Refrigeration Cycle, Bell- Colman Cycle, Vapour Compression Cycle,
The presentation of a Lecture on optimization of refrigeration systems given during a workshop in IITD. Includes an illustration and some generic ideas.
CAREL's Enrico Boscaro illustrates at ASHRAE Malaysia seminar the potentials of Indirect Evaporative Cooling technology as an energy savings instrument in cooling applications, in particular for the Make up Air handlers sector.
Theory and fundamentals of Active Chilled Beams presented at the Illinois Chapter of ASHRAE, February 8, 2011. Presented by Matt Green of Thermosystems.
Four-way air distribution gives individual comfort while for localized control each diffuser may be adjusted or even shut down completely.
The unique design of centrifugal fan ensures the quiet running of the unit. This thoroughly eliminates the bothering throttle noise inside the room.
ENERGY AUDIT presentationin power system .pptxReshevSharma
An energy audit is a systematic process of evaluating and analyzing energy usage in a building, facility, or industrial process to identify opportunities for energy efficiency improvements, cost savings, and environmental sustainability. The goal of an energy audit is to assess energy consumption patterns, identify areas of inefficiency or waste, and recommend measures to optimize energy usage and reduce overall energy consumption.
Here's an overview of the typical steps involved in conducting an energy audit:
1. **Pre-Audit Planning:**
Define the scope and objectives of the energy audit, including the areas or systems to be evaluated, the level of detail required, and the desired outcomes. Identify key stakeholders, establish audit goals, and gather relevant documentation, such as utility bills, building plans, and equipment specifications.
2. **Data Collection and Analysis:**
Collect comprehensive data on energy consumption, including utility bills, meter readings, and operational data
The units of the P series are highly configurable for complete control of the temperature, humidity and quality of the air by means of accessories such as the humidifier, the electric post-heating unit and high efficiency filters. The direct expansion PX versions are available, with air condensing and matching remote condenser, or with water condensing and incorporated plate heat exchanger, as well as the PW version with the cooled water circuit. The PX versions present the optional DC brushless inverter compressor for efficient modulation of delivered power. The Twin Sources solution is also available, with a second alternative cooling source. The Free Cooling maximises energy savings thanks to the external air that cools the water with an external dry cooler. Advanced microprocessor electronic regulation for integrated control of the unit with a standard RS485 card.
General overview of HVAC Technology
General overview of VRF Technology
Benefits of VRF
General overview of Refrigerant
General overview of Ton
General overview of Compressor
SYMPHONY is one of the largest manufactuer of evaporative portable Air Coolers. We have our state-of-the-ar manufacturing facilitites in India and USA. We are the market leader in india and we have a strong global presence in more than 54 countries.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
2. Indirect-Direct evaporative cooling is a
technique where we first use water in a heat
exchanger to cool another stream of air sensibly
(without adding moisture). The air used for
cooling water is called secondary air while the
air getting cooled in the heat exchanger which
will be sent to the room is called primary air.
Secondary Air is again exhausted back into
outdoors while cooled primary air is then
further cooled through direct evaporation
(adding moisture) before sending it to space to
be cooled. Since cooling is done in 2 stages
(indirect-direct), it’s also known as 2-stage
evaporative cooling
Basics
3. Direct Indirect
cooled air
20 ºC
,80% % RH
Ambient air
42 ºC
,20 % RH
Exhaust Air
26 ºC, 92.5% RH
Hot water 31 ºC,
Cooled water 24ºC
Ambient air
42 ºC
,20 % RH
Indirect
cooled air
28 ºC
,40 % RH
6/8 Row Deep Cooling coil
16” , 5 mm flute Cellulose pad
State of the art Water
evaporative cooling
technology
4. Why Go for IDEC
• Up to 40% Lower Humidity than Direct Evaporative Systems.
•Up to 60% lesser power consumption than chillers( refrigerant based systems).
•Filtered Fresh air for a fresh and active working environment
•Lesser VOC and CO2 , Better Indoor Air Quality
6. Lowest maintenance
against alternatives
Better comfort leads to higher productivity
Levanter IDEC-Industrial
Air Systems
Enthalpy feedback power
optimizer
Smart VFD
Controller
Various filter options from
10-60 micron
Easy Integration with
installed cooling tower
7. Model Levanter-Mini Levanter - 3K Levanter -5K Levanter -10K Levanter -16K Levanter -32K
S.No Component
1 make Levanter Air Systems ,Delhi
2 Primary Air(CFM) 1200 3000 5000 10000 16000 32000
3 Secondary Air (CFM) 400 1000 1650 3300 5300 10500
4 Power Supply Single phase 3-phase 3-phase 3-phase 3-phase 3-phase
5 Water Consumption(lph) 8.16 24 40 80 130 260
6 System Size(lXbXh)
1250X800X1500
1900X1300X2250
2150X1300X2650
2900X2000X3500
3500X2500X3450
3750X3750X4400
7 Construction Double Skin Modular Unit with Detachable Secondary Unit
8 Blower Type Forward/Backward Curve, Belt/Direct Driven, DIDW , Dynamically Balanced
9 Heat Exchanger used 6/8 Row Deep cooper/Stainless Steel Cooling Coil
10 Water Cooling method Indegeniously developed for high Wet Buld Approach and Low pressure drop
11 Designed Static Pressure 25 25 30 40 50 50
12 Cellulose pad 300 mm , 5mm flute , Make : Munters or equivalent
13 Motor make Havells , ABB , Bharat-Bijlee , User-defined
14 Water tank SS-304
15 Pump make Kirloskar/Crompton
16 Eliminator none 2 pass/4 pass 2 pass/4 pass 2 pass/4 pass 2 pass/4 pass 2 pass/4 pass
System Technical Details
9. Other Optional features
Variable Speed Drives
Convertible to Hybrid system by connecting to your existing chillers
Integration with already installed cooling tower
Custom Filtration Selection
PLC/Micro controller Based Control System
UV Treatment
Integration with existing BMS system
Remote Monitoring
