VAV Boxes is a solution to control Comfort for independent zones, but this solution hiding a lot of challenges, in this presentation we share with you our solutions to ensure the ultimate comfort
Dekon one of the professional manufacture and supplier for DC inverter VRF system in China. Here is the Dc inverter vrf installation instructions and tips.
I will describe those things in this PPT
Introduction
Principles of air-conditioning,
Type of-of air-conditioning,
Cooling cycle / refrigeration cycle,
The coolant,
thanks
Refrigeration Cycle. دائرة التكييف
Gauge set and refrigerant عدادات
Installing Gauges.تركيب عداد الغاز
Service ports and valves صمامات الخدمة
Refrigerant Types.أنواع غاز التكييف
Discharging, تفريغ الغاز
Evacuating and شفط الهواء و الرطوبة
Recharging إعادة شحن الغاز
Superheat & Subcooling الغاز المحمص و المبرد.
Pressures of Refrigerants.ضغوط أنواع غازات التكييف
Electronic Refrigerant Identifier Instrument جهاز كشف نوعية غاز التكييف
Dekon one of the professional manufacture and supplier for DC inverter VRF system in China. Here is the Dc inverter vrf installation instructions and tips.
I will describe those things in this PPT
Introduction
Principles of air-conditioning,
Type of-of air-conditioning,
Cooling cycle / refrigeration cycle,
The coolant,
thanks
Refrigeration Cycle. دائرة التكييف
Gauge set and refrigerant عدادات
Installing Gauges.تركيب عداد الغاز
Service ports and valves صمامات الخدمة
Refrigerant Types.أنواع غاز التكييف
Discharging, تفريغ الغاز
Evacuating and شفط الهواء و الرطوبة
Recharging إعادة شحن الغاز
Superheat & Subcooling الغاز المحمص و المبرد.
Pressures of Refrigerants.ضغوط أنواع غازات التكييف
Electronic Refrigerant Identifier Instrument جهاز كشف نوعية غاز التكييف
DEKON, one of the professional manufacture and supplier for VRF system in China. Having full DC inverter outdoor unit and multi selection for indoor units.
Q&A What is the effect of Low CHW Delta-T on Efficiency & Comfort
التأثير السلبي لإنخفاض فرق درجات حرارة المياه الباردة على كفاءة منظومة التكييف و مستويات الراحة لشاغلي المكان
Its the detailed process of the Centralized Air conditioning system. It is the apt notes required for architecture students. It has the components and sub topics with the detailed explanation of the mechanism of how it works
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
This video will identify the purpose and goals of the HVAC system, describe basic HVAC parts, and explain how the parts work together to form a functional HVAC system.
For more info: https://www.shopdiyparts.com/hvac-all
Understanding HVAC systems is essential for its proper maintenance. Quarterly maintenance of your HVAC systems is important to extend the system’s lifespan and save hundreds of dollars on unexpected repairs. Regular maintenance of residential HVAC systems is essential when it comes not only to the proper function of boilers, furnaces, and AC units but also for better energy efficiency and in-home air quality. A properly maintained HVAC system can cut hydro costs from five to ten percent, as well as improving comfort and air quality.
For More info:
https://sierraair.ca/residential/
DEKON, one of the professional manufacture and supplier for VRF system in China. Having full DC inverter outdoor unit and multi selection for indoor units.
Q&A What is the effect of Low CHW Delta-T on Efficiency & Comfort
التأثير السلبي لإنخفاض فرق درجات حرارة المياه الباردة على كفاءة منظومة التكييف و مستويات الراحة لشاغلي المكان
Its the detailed process of the Centralized Air conditioning system. It is the apt notes required for architecture students. It has the components and sub topics with the detailed explanation of the mechanism of how it works
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
This video will identify the purpose and goals of the HVAC system, describe basic HVAC parts, and explain how the parts work together to form a functional HVAC system.
For more info: https://www.shopdiyparts.com/hvac-all
Understanding HVAC systems is essential for its proper maintenance. Quarterly maintenance of your HVAC systems is important to extend the system’s lifespan and save hundreds of dollars on unexpected repairs. Regular maintenance of residential HVAC systems is essential when it comes not only to the proper function of boilers, furnaces, and AC units but also for better energy efficiency and in-home air quality. A properly maintained HVAC system can cut hydro costs from five to ten percent, as well as improving comfort and air quality.
For More info:
https://sierraair.ca/residential/
The Flowserve Limitorque QX quarter-turn smart electronic valve actuator continues the legacy of the industry’s state-of-the-art, non-intrusive, multi-turn MX actuator by including an absolute encoder for tracking position without the use of troublesome batteries. The QX design provides enhanced safety and reduced downtime through improved diagnostics, built-in self-test (BIST) features and LimiGard™ fault protection.
The QX design builds on more than 10 years of experience with proven Limitorque MX technology - the first generation double-sealed electronic valve actuator from Flowserve designed to provide control, ease of use and accuracy. The QX includes all the user-preferred features of the MX in a quarter-turn smart actuator package. It is the only non-intrusive, double-sealed quarter-turn actuator to display the Limitorque brand.
خارطة الطريق والمبادئ التوجيهية لإصدار
واقرار اللوائح الخضراء في دولة الكويت.
Roadmap and Guidelines
to decide and issue
the Green Regulations in Kuwait State.
Looking for New Challenges - نتطلع لتحديات جديدة
Being an ARTIST
Able to provide the sensitive BALANCE between Health, Comfort and Efficiency with Safety & without Energy Wastage
فن التوازن بين توفير الراحة والصحة بفعالية ودون هدر للطاقة
رسالتي إلى المؤتمر الخامس لحوار تبريد المناطق 2021 في دبي وفرص السوق الحقيقية - م. جمعة
My Message to the 5th DC Dialogue 2021 in Dubai & TRUE Market Opportunity - by Eng. Juma
كيف تبدو المكاتب خلال جائحة الفيروسات التاجية؟ هل هذه الإجراءات كافية لحماية موظفيهم How offices look like during coronavirus pandemic how they can return their employees and protect them- by getco
عظم فعالية فريقك للتكييف والتهوية عن طريق محاضراتنا للتدريب المفصلة على حسب حاجتكم
Increase Performance of your HVAC Team by our Customized Training Courses
أساسيات ومبدأ عمل أبراج التبريد
Fundamentals of Cooling Tower, Types, Applications, Performance, Energy Efficiency, Water Conservation & Service Maintenance
نحن نفهم تمامًا اللوائح المحلية والدولية
We fully understand the Local & International Regulations
نحن نفهم تماما دورالتكييف والتهوية لنشر العدوى
We fully understand the role of HVAC to spread infection
نحن مجهزين تجهيزا كاملا من المهندسن وأدوات ومعدات قياس
We fully equipped with Engg. tools & measuring equipment.
نحن قادرون بشكل كامل على ترقية و / أو تعديل النظام الحالي
We fully capable to upgrade and/or modify the existing system
نظرية فى التغيير الإسلامي السلمي و تبسيط لكتاب صناع الحياة (لصاحبه الشيخ/ محمد أحمد الراشد) و وصف لأنواع صناع الحياة و الدعوة للجميع للمساهمة كل حسب تخصصه و من واقع خبرته لننهض معا بهذه الأمة التى من قدر الله أنها ستنهض لأكون و تكون و نكون ممن صدق فيهم قول الله عز و جل (لا يستوى منكم من أنفق من قبل الفتح و قاتل ) اللهم إجعلنا من صناع هذا المستقبل المشرق الذى تشتاق لعدله البشرية و تتعطش لرحمته الأرض و ترتقى بعقيدته السماء .... اللهم إستجب ... آمين
كيف تبدو المطاعم خلال جائحة الفيروسات التاجية؟ هل هذه الإجراءات كافية لحماية ضيوفهم؟
How restaurants look like during coronavirus pandemic? Is these measures are enough to protect their guests?
فرصة ما بعد جائحة الكورونا: منظومة جديدة لإقامة العمالة الفنية في دول الخليج العربي
The opportunity after the Corona pandemic
Establishing a New Residential Sys. for Technical Labor in the GCC
لماذا انتشر وباء فيروس الكورونا في شمال إيطاليا و ليس في وسطها أو جنوبها
Why has the pandemic virus spread in northern Italy, not in the center or south of it May 2020 by GETCO- fantastic
أصبح من الواضح جدًا التأثير السلبي لمنظومة التدفئة والتهوية وتكييف الهواء على IAQ - جودة الهواء الداخلي - بما في ذلك البكتيريا والفيروسات بما في ذلك فيروس الكورونا ، وهذا التحديث هو متابعة لأحدث التقارير من المنظمات والجامعات المحترمة التي صادفتها ، كما أنني أتطرق إلى عناصر التكييف الرئيسية التي يمكنها كن جزءًا من الحل.
It became very clear the negative effect of HVAC on IAQ- Indoor Air Quality- including bacteria and viruses including Coronavirus, this repot is an update for latest reports from respected organizations and universities I came across, also I touch in the main HVAC elements that can be part of the solution.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
7. الحل هذا قيمت هال
-
Check this Solution
VAV Boxes–Variable Air Volume-بالهواء التحكم صندوق
المشكلة هذه تواجه هل
؟
Are You Facing This Problem
11. * To be fixed at Offices & Big
Halls.
*To be fixed at higher floor in
multi story villa.
*Easier to maintain & to repair
*Less inconvenience for occu.
* More privacy for zones.
*Easier to replace in the
future.
*Efficiency Ratio: 1.6 kw per
ton in average
* Can be connected to VCD &
VAV-Boxes for better air
distribution.
*
القاعات و المكاتب في تركب
الكبيرة
.
*
للمن العلوي الدور في تركب
زل
الدورين ذات
*
اإلص وعند الصيانة في أسهل
الح
•
المكان لمستخدمي إزعاجا أقل
.
•
الخصوصية على محافظة أكثر
.
*
في االستبدال عند أسهل
المستقبل
.
•
كفاءة أكثر
ل
لتبريد
:
كيلو
ات
المعدل فى تبريد طن لكل
•
ال صناديق و ببوابات توصل
هواء
الدقيق التحكم من لمزيد
.
Features المميزات
12. Importance
& Benefits of
VAV
• When you decide to fix A/C
Package unit or Central AHU
that located at roof while
cooling several zones, so you
need to fix VAV for each
zone in order to control
desire temperature.
• Increase comfort level, when
occupant in control compare
to actual temperature.
• Reduce energy wastage
when cooling empty zone.
وفوائد أهمية
التحكم منظومة
بالهواء
•
مدمجة وحدة تركيب تقرر عندما
وحدة أو
مركزية هواء معالجة
على تركب والتى
السطح
خدمة منطقة أو
الدكت يوزع بينما
مناطق عدة على الهواء
,
لذلك
يجب
ليتس بالهواء التحكم صندوق إستخدام
نى
المرغ الحرارة بدرجة التحكم للمستخدم
وبة
.
•
عل المستخدم لقدرة الراحة مستوى رفع
ى
الحا للدرجة معرفته على بناءا التحكم
لية
المطلوبة لتعديل
.
•
التبريد هدر تقليل
/
نغلق عندما الطاقة
تكييف
الشاغرة المناطق
.
13. الداخلية الوحدة إلى يضخه و الماء يبرد الشيلر
Chiller Produce Cooling and pump chilled water to
AHU
ف ليوزعه الهواء مجارى عبر يضخه و الهواء تبرد الداخلية الوحدة
ى
المكاتب
AHU will then cool Air & distribute it through duct
طر عن المكاتب على الهواء توزيع يجب المريح التبريد لضمان
يق
خاص وثرموستات الهواء صناديق
To ensure comfort cooling for each office, must fix
VAV-Box & individual Thermostat
التكييف لمنظومة الرئيسية للمكونات المنطقى الترتيب
Schematic of Main Components
14. الهواء صناديق عبر التبريد توزيع منظومة
VAV-Boxes air Distribution System
Supply from AHU
Main Duct
Branches
VAV
Boxes
For
Each
Zone
AHU-
Air Handling
Unit
للخدمة حاجة ال
العمل منطقة فى
No Service
Required at
working area
بعيدة الخدمة
إزعاج بدون
للمنتفعين
Service away
from
Occupants
15. تطبيقي مثال
–
Practical Example
Scenario
• Plan for open office cold by
one A/C unit that have no
privacy for any area.
• After a plan that show 4-
VAVs that controls 4
different zones.
• After a plan for the same
office with 12 VAVs that give
privacy for 12-Zones.
سيناريو
•
بجهاز يبرد مفتوح مكتب مخطط
خصوص اليوجد و مركزى تكييف
ية
جزء ألي
.
•
إضافة يوضح مخطط ثم
(
4
)
بـ التحكم تتيح هواء صناديق
(
4
)
مختلفة تكييف مناطق
.
•
لـ مقسم للمكتب مخطط ثم
(
12
)
يتيح
طريق عن الراحة بدرجة أدق تحكم
تركيب
(
12
)
هواء صندوق
.
16. الهواء توزيع لمجارى مخطط
–
Duct Layout
No way to adjust the cold air distribution
without VAV-Boxes
صنادي بدون البارد الهواء توزيع تنظيم على قدرة ال
ق
الهواء
17. If big space maintaining comfort by one Thermostat, result:
Acceptable with some diversity.
23’C
21’C
23’C
22’C
24’C
18. If the unit maintaining comfort in independent zones with
different loads: It will be challenging task.
23’C
24’C
22’C
23’C
22’C 20’C
Br
Br
Br
19. الهواء توزيع لمجارى مخطط
–
Duct Layout
VAV-Boxes control the cooling for 4-
ziones-better than nothing
مناطق أربع فى التبريد تنظم الهواء صناديق
-
أفض
من ل
شيء ال
20. الهواء توزيع لمجارى مخطط
–
Duct Layout
VAV-Boxes control the cooling for 12-zones-best
air distribution
فى التبريد تنظم الهواء صناديق
12
مناطق
-
أفضل
الهواء توزيع
21. Even when utilizing the benefit of VAV Boxes to maintain independent
comfort in zones with different loads: Some colder, some warmer.
24’C 20’C
24’C
23’C
24’C 23’C
Hot
Hot
Hot
27. Since VAV-Thermostats control zone’s setting: Central
Thermostat must control the AC Unit
22’C 24’C
22’C 24’C
23’C
22’C
28. 1) Wrong location, 2) Might off when still cooling is Required,
3) To maintain comfort, SA Temp. (off-coil) must maintained.
1)
22’C
2)
17-
22’C
3)
11-
13’C
40. الموتور سرعات مشغل يقوم
طر عن المحرك بسرعة بالتحكم
يق
بناء الكهربائى التردد تغيير
على ا
الدكت داخل الراجع الضغط تغير
المشار الضغط مفتاح طريق من
VFD: Variable Frequency Drive
will verify the Motor speed
according to back pressure from
return air inside the Duct,
according to signal coming from
the pressure switch shown
41. When all Boxes close, Fan can’t turn off and
must: Maintain min. air flow (Standby)
500Pa
42. سرعات مشغل يقوم
بسر بالتحكم الموتور
عة
تغيي طريق عن المحرك
ر
بناء الكهربائى التردد
ا
الرا الضغط تغير على
جع
الدكت داخل
VFD: Variable
Frequency Drive will
verify the Motor
speed according to
back pressure from
return air inside the
Duct
47. Damper with shaft that can be controlled Automatically
اآللي المزالق
By Automatic Actuator
48. آليا الهواء لتوجيه عام منظر
General View for Automatic Damper
للتركيب جاهزة
–
Ready to Fix
سيتم اآللي المشغل
موجه مع ربطه
ليفت الحالى الهواء
ح
و اإلغالق عند
الحاجة عند يغلق
للتكييف
Actuator to be
inter- Locked
with existing
VAV to allow
by-pass air to
go to return
54. When Zone is large or splited to
rooms: we need to average the
heat load carried by return air
Supply
Return
55.
56. Types of:
Temperature Sensors
DI-Open Control Loop:
Install with-in Zone or at
return duct, if contact close
the DDC can detect Temp. and
Open Floating Control Valve
Digital
DI
Input
Analog
AI
Input
DO-Close Control Loop:
Install with-in Zone or at return
duct, if Signal Increase due to high
temp., the DDC can increase
opening % of Modulating Control
Valve
Switch
Transducer
60. The need will
be for 3-Temp.
sensors
Supply
Return
Fresh Air
Return
Mixin
g
Box
1
2’
C
Return Temp. Sensor
indicate zone temp.,
while Sensor at Mixing
Box indicate the real
heat load we required
to cool, last is Supply
Sensor inform the
condition of changing
tool.
61. Humidity Sensor
DI-Open Control Loop:
Install with-in Zone or at
return duct, if contact close
the DDC can detect RH% and
close Fresh Air Damper
Digital
DI
Input
Analog
AI
Input
DO-Close Control Loop:
Install with-in Zone or at
return duct, if Signal Increase
due to high RH%, the DDC can
decrease opening % of
Modulating FA-Damper.
Switch
Transducer
68. DPS-Differential Pressure
DI-Open Control Loop:
Install across FAN or Filter, if
contact close the DDC can
detect either fan stop working
or filter is clogged
Digital
DI
Input
Analog
AI
Input
DO-Close Control Loop:
Install after FAN in VAV
System, if Signal Increase due
to Pressure increase after
some VAV close, the DDC can
reduce VFD Speed
Switch
Transducer
70. CO2 Sensor
DI-Open Control Loop:
Install with-in Zone or at
return duct, if contact close
the DDC can detect IAQ and
Open Fresh Air Damper
Digital
DI
Input
Analog
AI
Input
DO-Close Control Loop:
Install with-in Zone or at
return duct, if Signal Increase
due to PPM concentration
increases, the DDC can
increase VFD Speed of FA-FAN
Switch
Transducer
72. Smoke Sensor
DI-Open Control Loop:
Install with-in Zone or at
return duct, if contact close
the DDC can detect Smoke and
Close Fire Fighting Damper
(Less than 20 sec)
Switch
Smoke Sensor in the return
duct is a must by Civil Defense
Regulations, it will connected
to fire damper that must close
within 20 sec. max.
Digital
DI
Input
73. Occupancy Sensor
DI-Open Control Loop:
Install with-in Zone, if contact
open, the DDC can detect
Unoccupied Mode and activity
Energy Saving Pre-Sited Temp.
Switch
Occupancy Sensor can be utilize to
maximize Energy Saving, by:
•
Activate Per Sit Temp.
•
Reduce Air Flow to minimum.
•
Close Fresh Air Damper.
Digital
DI
Input
77. Variable Air Volume (VAV) system is an all air system which can satisfy the individual cooling requirements
of multiple thermal zones.
This is achieved by supplying air at a constant temperature from central plant to one or more VAV terminal
units in each zone and adjusting the amount of supply air to meet required cooling loads.
The primary benefit of VAV over constant volume systems (CV) is its ability to simultaneously provide the required
level of cooling to any number of zones within a building.
82. Main Control Components-DX-التحكم لمنظومة الرئيسية المكونات
Temp. Sensor: Duct Return Type
RH% Sensor: Duct Return Type
Enthalpy Sensor: Duct Return Type
Actuator: Opening of Air Dampers
Pressure Switch-PDS: Filter/Motor
Condition
Press. Transducer-PDT: Positive P.
VFD: Variable Frequency Drive
Damper: Duct Type - Motorized
Touch Pad: Maximum Limit
Main Controller: Connect and control
all above sensor, switches and
actuators (Demand Response)
حرارة مجس
:
الهواء مجارى فى يركب
رطوبة مجس
:
الهواء مجارى فى يركب
الكاملةة الحرارة مجس
:
الهواء مجارى
الهواء مزالق بوابات لفتح محرك
الضغط فرق مفتاح
:
الفلتر حالة
/
المحرك
الضغط مجس
:
الموجب الضغط لمراقبة
المتردد التيار مشغل
:
الهواء بكمية للتجكم
الهواء مزالق
:
بمحرك الهواء مجارى داخل
التحكم جهاز
:
الوظائف ألقصى مدخل
الرئيسي المتحكم
:
ا و المجسات بكافة مربوط
لمفاتيح
قدر على ليعمل يبرمج و التشغيل محركات و
المتغيرة الحاجة
.
A
D
1
2
’
83. Top (Level 3)
Comfort, ES
& Productivity.
Middle (Level 2)
Monitor, Control
and Field Services
Base (Level 1)
Data: Power, CH.
W. and Air
Performance
centric
Facilities
centric
بالمبانى الذكي التحكم لمنظومة الفعالة الإمكانيات
The Capabilities
Of effective Building Management System
الفعالة الخدمات
Effective Services
Facilities Monitored & Controlled by BMS-بالمنظومة وتحكم مراقبة خدمات
Smart mosque enable by smart e.BMS
eBMS
88. الهواء تجديد مدخل تركيب بعد عام منظر
والدكت
االلتفا
في
General view for Fresh air & bypass
البوابة إلغالق آلي محرك
Auto Actuator to close bypass
إغال عند الهواء لتدفق التوازن إحداث على ليعمل التفافي دكت
ق
الهواء صناديق
Bypass Duct to balance air flow when VAV Box Closes
89. الهواء تجديد مدخل تركيب بعد عام منظر
والدكت
االلتفا
في
General view for Fresh air & bypass
الهواء إلغالق آلي مزالق
Auto Closing
Damper (Enthalpy)
تثب صندوق
يت
الهواء كمية
Constant
Flow
Damper
2
لل قابل فلتر ألمنيوم إنش
تنظيف
2 inch Aluminum
washable Filter
من الهواء مصفي
الك التراب حبيبات
بيرة
Sand Trap Louver
التغييرات هذه كل
التكييف جهاز ألن
من مجهز غير
المصنع
All this
modification
because unit
was not ready
90. الهواء تجديد مدخل تركيب بعد عام منظر
والدكت
االلتفا
في
General view for Fresh air & bypass
التغيير هذه كل لتجنب
ات
جهاز تجهيز فيمكن
المصنع من التكييف
,
هو بكمية اآللي للتحكم
اء
الحاج قدر على التجديد
ة
ضمان مع الحاجة وعند
الكفوءة المعالجة
.
To avoid all these
modification, unit
can be furnished
with FA Economizer
to modulate as per
actual demand &
allow only treated air
91. آخر عرض فى أكثر معلومات
More Details in anther
Presentation
المحتوى مجسات
الحراري
–
Enthalpy Sensors
92. المدمجة التكييف وحدات تركيب عند خاصة اعتبارات
Considerations when installing Package A/C Units
98. Minimum Efficiency Requirements for Unitary Air
Conditioners and Condensing Units-by Dubai municipality
Equipment Type
Size
Category
Heating
SectionType
Subcategoryor
RatingCondition
Minimum
Efficiency
(T1)
Minimum
Efficiency
(T3)
Test
Procedure
* Split Ducted
9.5 6.6
* Split Décor. EER EER
* Package
* Cassette
9.5 6.6
* FAHU-DX EER EER
8 5.7
* Window Type EER EER
9.2 6.4
EER EER
Example
Equipment
Type
Refference
A
B
C_
Through-the-wall, air cooled
<=30,000
Bth/h
All Single Package
Small-ducthigh-velocity air cooled
<65,000
Bth/h
All SplitSystem
Single Package
T3-
ISO5151
Minimum Efficiency Requirements for Unitary Air Conditioners and Condensing Units
Air Conditioners, air cooled
<65,000
Btu/h
All
SpiltSystem
T1-ARI
210/240
100. Sys. Benefits – المنظومة فوائد
Design
• Compact Design that
minimize coordination
mistakes.
• Compact product that utilize
limited space.
• Guarantee Cooling
performance as per design.
• Reduce energy wastage by
response as per actual
demand.
التصميم
•
أخطاء من يقلل مدمج تصميم
المخت الخدمات بين التنسيق
لفة
.
•
م اإلستفادة يتيح مدمج منتج
ن
المحدودة المساحات
.
•
هو كما التبريد فعالية ضمان
التصميم فى محسوب
.
•
للتحك نظرا الطاقة هدر تقليل
م
و الواقعية للحاجة المطابق
اآلنية
.
101. Sys. Benefits – المنظومة فوائد
Operation
• Easy to install System
by labor.
• Easy to commission
by engg. team.
• Easy to operate by
occupant.
• Easy to maintain by
technicians.
التشــــــغيل
•
من المنظومة تركيب سهولة
العاديين العمال قبل
.
•
التضب و التشغيل سهولة
يط
الهندسي الفريق أيدى على
.
•
التبري و التشغيل سهولة
د
شاغل قبل من الطلب حسب
المكان
.
•
قبل من الصيانة سهولة
الفنيين
.
102. Sys. Benefits – المنظومة فوائد
The ultimate
This unit has been design to
ensure effective comfort for
big special used areas,
precious control that
perform per actual demand
when no dedicated in
charge, also the Alert System
reduce response time and
prevent more break downs
and eliminate waste.
أهمية األكثر
الت لتوفير الوحدة هذه تصميم تم
كييف
لألماك الكبيرة للمساحات الفعال
ن
االستعمال المتخصصة
,
فالتحكم
هدر بدون و الحاجة قدر على الدقيق
فيه ليس التي األماكن في خاصة
ا
للمتابعة محدد مسؤول
,
أن كما
تربيطات
يمكن المتقدمة التحكم
ها
تضخ وتقليل التلبية تسريع
األعطال م
المستهلكة الطاقة هدر ومنع
.
104. مشاكل لحل محدود إنتاج
فى الحرارة فرق إنخفاض
المناطق تبريد مشاريع
Limited production as
solution for low
delta-T at DC-Projects
105. P- E C O- 2 4 D- H- A M- V F- P I
C: FCU - A: AHU – F: FAHU – P: Package
ECO: Economical Dynamically Balanced Unit
# # X 100 = Max. Air Flow in cfm
S: Standard – D: Dynamically Balance
H: High-M: Medium – L: low
Static
AM: AC - DM: DC – EM: EC
Variable Speed Motor
CF: Constant
VF: Variable Flow
PI or GR or
VAV
106. السعر تخفيض عظيمةتضمن إضافية فوائد
Anther great benefits-ensure price reduction
المكيف مصنع
FCU
1
V
OH-Factory
الوصالت
Fittings
2
V
OH-Dampers
التحكم
Control
3
V
OH-Controller
التركيب
Installation
4
OH-Contractor
التقليدية الطريقة فى
:
الكفالة؟ ويحفظ األدء كفاءة سيضمن من
In normal case: Who will ensure performance & guarantee?
V
OH-Factory
Damper & Control OH-Contractor
التشغيل
Commission
5
OH-TAB
V
OH-TAB
107. السعر تخفيض عظيمةتضمن إضافية فوائد
Anther great benefits-ensure price reduction
المكيف مصنع
FCU
1
V
2,000
الوصالت
Fittings
2
V
100
التحكم
Control
3
V
400
التركيب
Installation
4
1,000
حوالى المواد تكلفة فى توفير
:
30
%
Saving in material cost around 30%
V
2,000
2,100 2,500 500
التشغيل
Commission
5
100
V
50
110. الهواء صناديق
-
VAV Types
(Variable Air Volume Box)
VAV Damper interlock with VFD
(Variable Frequency Drive).
VAV Box with By-
pass Return Damper
VAV Damper interlock with
Central Return Damper.
111. ا الهواء ترجع والتى األفضل النوعية من المنظم يكن لم لما
لزائد
Since Existing VAV doesn’t have By-pass for Return
Must add a By-pass
VAV with Built-in By-pass
112. HOW TO CALL US ?
بنا تتصل كيف
To benefit from our Services:
• Consultancies.
• Corrections.
Call:
Eng. Juma Yousef
من لإلستفـــــــــــادة
خدمــــاتنا
:
•
اإلستشارية
.
•
التصحيحية
.
اتصل
:
المهندس
/
يوسف جمعة
Mobile: +962-7-9074-6811 jumayjuma@gmail.com