مجموعة تكنولاب البهاء جروب

تحاليل وتنقية ومعالجة المياه
 
الرئيسيةالبوابةمكتبة الصورس .و .جبحـثالأعضاءالمجموعاتالتسجيلدخول
تنظيف وتطهير وغسيل واعادة تاهيل الخزانات


معمل تكنولاب البهاء جروب
 للتحاليل الكيميائية والطبية
والتشخيص بالنظائر المشعة
 للمخدرات والهرمونات والسموم
 وتحاليل المياه

مجموعة
تكنولاب البهاء جروب
لتصميم محطات الصرف الصناعى والصحى
لمعالجة مياه الصرف الصناعى والصحى
مجموعة تكنولاب البهاء جروب
المكتب الاستشارى العلمى
دراسات علمية كيميائية



معالجة الغلايات وانظمة البخار المكثف
معالجة ابراج التبريد المفتوحة
معالجة الشيللرات
مجموعة تكنولاب البهاء جروب
اسنشاريين
كيميائيين/طبيين/بكترولوجيين
عقيد دكتور
بهاء بدر الدين محمود
رئيس مجلس الادارة
استشاريون متخصصون فى مجال تحاليل وتنقية ومعالجة المياه
متخصصون فى تصنيع وتصميم كيماويات
معالجة الصرف الصناعى والصحى
حسب كل مشكلة كل على حدة
تصنيع وتحضير كيماويات معالجة المياه الصناعية
مؤتمرات/اجتماعات/محاضرات/فريق عمل متميز
صور من وحدات معالجة المياه


technolab el-bahaa group
TECHNOLAB EL-BAHAA GROUP
EGYPT
FOR
WATER
TREATMENT/PURIFICATION/ANALYSIS
CONSULTANTS
CHEMIST/PHYSICS/MICROBIOLIGIST
 
INDUSTRIAL WATER
WASTE WATER
DRINKING WATER
TANKS CLEANING
 
CHAIRMAN
COLONEL.DR
BAHAA BADR EL-DIN
0117156569
0129834104
0163793775
0174041455

 

 

 

تصميم وانشاء محطات صرف صناعى/waste water treatment plant design

technolab el-bahaa group
egypt
We are a consultants in water treatment with our chemicals as:-
Boiler water treatment chemicals
Condensated steam treatment chemicals
Oxygen scavenger treatment chemicals
Ph-adjustment treatment chemicals
Antiscale treatment chemicals
Anticorrosion treatment chemicals
Open cooling tower treatment chemicals
Chillers treatment chemicals
Waste water treatment chemicals
Drinking water purification chemicals
Swimming pool treatment chemicals
Fuel oil improver(mazote/solar/benzene)
technolab el-bahaa group
egypt
We are consultants in extraction ,analysis and trading the raw materials of mines as:-
Rock phosphate
32%-30%-28%-25%
Kaolin
Quartez-silica
Talcum
Feldspae(potash-sodumic)
Silica sand
Silica fume
Iron oxid ore
Manganese oxid
Cement(42.5%-32.5%)
Ferro manganese
Ferro manganese high carbon

 

water treatment unit design


 

وكلاء لشركات تركية وصينية لتوريد وتركيب وصيانة الغلايات وملحقاتها
solo agent for turkish and chinese companies for boiler production/manufacture/maintance

 

وكلاء لشركات تركية وصينية واوروبية لتصنيع وتركيب وصيانة ابراج التبريد المفتوحة

 

تصميم وتوريد وتركيب الشيللرات
design/production/maintance
chillers
ابراج التبريد المفتوحة
مجموعة تكنولاب البهاء جروب
المكتب الاستشارى العلمى
قطاع توريد خطوط انتاج المصانع
 
نحن طريقك لاختيار افضل خطوط الانتاج لمصنعكم
سابقة خبرتنا فى اختيار خطوط الانتاج لعملاؤنا
 
1)خطوط انتاج العصائر الطبيعية والمحفوظة والمربات
2)خطوط انتاج الزيوت الطبيعية والمحفوظة
3)خطوط انتاج اللبن الطبيعى والمحفوظ والمبستر والمجفف والبودرة
4)خطوط تعليب وتغليف الفاكهة والخضروات
5)خطوط انتاج المواسير البلاستيك والبى فى سى والبولى ايثيلين
6)خطوط انتاج التراى كالسيوم فوسفات والحبر الاسود
7)خطوط انتاج الاسفلت بانواعه
Coolمحطات معالجة الصرف الصناعى والصحى بالطرق البيولوجية والكيميائية
9)محطات معالجة وتنقية مياه الشرب
10)محطات ازالة ملوحة البحار لاستخدامها فى الشرب والرى
11)الغلايات وخطوط انتاج البخار الساخن المكثف
12)الشيللرات وابراج التبريد المفتوحة وخطوط انتاج البخار البارد المكثف
 
للاستعلام
مجموعة تكنولاب البهاء جروب
0117156569
0129834104
0163793775
 
القاهرة-شارع صلاح سالم-عمارات العبور-عمارة 17 ب
فلا تر رملية/كربونية/زلطيه/حديدية

وحدات سوفتنر لازالة عسر المياه

مواصفات مياه الشرب
Drinking water
acceptable
values

50

colour

acceptable

Taste

nil

Odour

6.5-9.2

ph

 

1 mg/dl

pb

5 mg/dl

as

50 mg/dl

cn

10 mg/dl

cd

0-100mg/dl

hg

8 mg/dl

f

45 mg/dl

N02

1 mg/dl

Fe

5 mg/dl

Mn

5.1 mg/dl

Cu

200 mg/dl

Ca

150 mg/dl

Mg

600 mg/dl

Cl

400 mg/dl

S04

200 mg/dl

Phenol

15 mg/dl

zn

 

 

الحدود المسموح به
ا لملوثات الصرف الصناعى
 بعد المعالجة
Acceptable
values
treated wate water
7-9.5

ph

25-37 c

Temp

40 mg/dl

Suspended solid

35 mg/dl

bod

3 mg/dl

Oil & grase

0.1 mg/dl

hg

0.02 mg/dl

cd

0.1 mg/dl

cn

0.5mg/dl

phenol

1.5 ds/m

conductivity

200 mg/dl

na

120 mg/dl

ca

56 mg/dl

mg

30 mg/dl

k

200 mg/dl

cl

150 mg/dl

S02

0.75 mg/dl

Fe

0.2 mg/dl

Zn

0.5 mg/dl

Cu

0.03 mg/dl

Ni

0.09 mg/dl

Cr

0.53 mg/dl

لb

0.15 mg/dl

pb

 





pipe flocculator+daf
plug flow flocculator
lamella settels

محطات تحلية مياه البحر بطريقة التقطير الومضى على مراحل
MSF+3.jpg (image)
محطات التقطير الومضى لتحلية مياه البحر2[MSF+3.jpg]
some of types of tanks we services
انواع الخزانات التى يتم تنظيفها
ASME Specification Tanks
Fuel Tanks
Storage Tanks
Custom Tanks
Plastic Tanks
Tank Cleaning Equipment
Double Wall Tanks
Septic Tanks
Water Storage Tanks
Fiberglass Reinforced Plastic Tanks
Stainless Steel Tanks
Custom / Septic
مراحل المعالجة الاولية والثانوية والمتقدمة للصرف الصناعى

صور مختلفة
من وحدات وخزانات معالجة الصرف الصناعى
 التى تم تصميمها وتركيبها من قبل المجموعة

صور
 من خزانات الترسيب الكيميائى والفيزيائى
 لوحدات معالجة الصرف الصناعى
المصممة من قبل المحموعة



technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group

technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group


technolab el-bahaa group




مياه رادياتير اخضر اللون
بريستول تو ايه
انتاج شركة بريستول تو ايه - دمياط الجديدة
مجموعة تكنولاب البهاء جروب

اسطمبات عبوات منتجات شركة بريستول تو ايه-دمياط الجديدة

مياه رادياتير خضراء فوسفورية

من انتاج شركة بريستول تو ايه 

بترخيص من مجموعة تكنولاب البهاء جروب


زيت فرامل وباكم

DOT3



شاطر | 
 

 الفرق بين تشيللر التبريدى بالمياه والتبريدى بالهواء

استعرض الموضوع السابق استعرض الموضوع التالي اذهب الى الأسفل 
كاتب الموضوعرسالة
Admin
Admin
avatar

عدد المساهمات : 3513
تاريخ التسجيل : 15/09/2009
العمر : 49
الموقع : مصر

مُساهمةموضوع: الفرق بين تشيللر التبريدى بالمياه والتبريدى بالهواء   الجمعة مايو 10, 2013 12:17 pm

Air Cooled Vs. Water Cooled Chillers

مجموعة تكنولاب البهاء جروب

عميد دكتور

بهاء بدر الدين محمود

استشارى معالجة المياه

01117156569

The difference is big.

With a water cooled chiller, there is a unit located in the building that acts as the driving force to transfer the heat from the building water loop to a secondary loop (condenser water loop).

The second water loop is then run up to a cooling tower usually located on the roof of a building where the heat is then expelled to the atmosphere. High efficency with these type of devices.

With an air cooled chiller, there is no secondary water loop, and the primary water loop from the building runs directly up to the roof.

There, the chiller uses the thermodynamic principles of refrigerants to directly remove the heat to the atmosphere.

There is less equipment with this system, but the efficiency is half that of the water cooled systems.

Also, air cooled chillers are limited in the total size of the cooling system that they can adaquatly handle, where as water cooled chillers can be much much larger.

-----------------------------------------------------------------------------------

What is difference between air cooled & water cooled engine?

Air cooling uses airflow directed at fins on the cylinders and heads is the cooling medium:

heat is transferred directly to the air.

The air comes either by natural convection (e.g., a motorcycle) or by forced air (e.g., air-cooled VW or Porsche engine.)

Water cooled engines circulate coolant around the heads + cylinders though a surrounding water jacket, and use a separate high-efficiency radiator for the final heat exchange to the air.

(Marine engines are a bit different - they use the surrounding water instead, either directly or though a water-to-water heat exchanger.)

Air-cooled engines are simpler, lighter and easier to maintain as they don't have the 'wet' cooling system elements.

They excel in cold climates where coolant freezing can be a problem. However, air cooling is less efficient due to the low heat capacity of air so these engines suffer from hot spots which reduces power, increases emissions and shortens their life.

Air-cooled engines are also considerably noisier - both from the engine directly and also from the air blower cooling fan if used.

Water-cooled engines take advantage of water's high heat capacity to efficiently carry away the heat.

So they offer the best control over temperature allowing for more aggressive / efficient tuning and optimal head design. While they have increased near-term maintenance costs (coolant, water pump, hoses, etc.) they make up for it in a longer-lived engine core (longer time between overhaul.)

Water-cooled engines are also quieter due to the insulating properties of the water jacket and the lessened airflow requirement.

Water cooling also permits more flexibility in engine architecture and installation since there isn't a need to duct cooling air directly to the cylinders.

----------------------------------------------------------------------------------

What is the difference between an air conditioner and a chiller?


AC is ----- which can convert air to hot as well as cold or we can say which maintains the temp. i.e. if it is hot it can cool the room n if it is cold outside u can warm the room.

A Chiller is a machine that produces chilled water (usually mixed with ~20% glycol and corrosion inhibitors) which is used to cool and dehumidify air in commercial and industrial facilities .t]

Use in air conditioning

In air conditioning systems, chilled water is distributed to air handling units as a refrigerant. These air handling units provide air conditioning to the building by running the incomming warm air through the coil of chilled water, transferring the heat from the air to the chilled water, thus, cooling the air.

A typical chiller for air conditioning applications is rated between 15 to 1000 tons (180,000 to 12,000,000 BTU/h or 53 to 3,500 kW) in cooling power.


Use in industry

In their industrial application, cooled refrigerant from the chiller is pumped through process or laboratory equipment.

Industrial chillers are used for controlled cooling of products, mechanisms and factory machinery in a wide range of industries.

They are often used in injection and blow molding, metal working cutting oils, welding equipment, die-casting and machine tooling, chemical processing, pharmaceutical formulation, food and beverage processing, vacuum systems, X-ray diffraction, power supplies and power generation stations, analytical equipment, semiconductors, compressed air and gas cooling.

They are also used to cool high-heat specialized items such as MRI machines and lasers.


Technology

There are basically four different types of chillers: Reciprocating, centrifugal, or screw-driven chillers are mechanical machines that can be powered by electric motors, steam, or gas turbines.

Absorption chillers are powered by a heat source (such as steam or hot water).

They have very low electrical power requirements - very rarely above 15 kW combined consumption for both the solution pump and the refrigerant pump.

Chillers can be air-cooled or water-cooled. Water-cooled chillers incorporate the use of cooling towers which improve heat rejection more efficiently at the condenser than air-cooled chillers.

---------------------------------------------------------------------------------------

Water Cooled Chiller vs Air Cooled Chiller in HVAC System

Initial cost of air cooled chillers is lower than water cooled chillers as air cooled systems don’t require cooling towers,condenser water pumps and associated HVAC components.

Small systems are almost always air-cooled since the extra requirements of water treatment and maintenance are capital intensive and will not be offset quickly by the lower operating costs.

Larger HVAC water chillers are almost always water cooled

.HVAC engineers and technicians feel easy with maintenance free or less maintenance equipment.

Water cooled chillers may be preferred because of better heat transfer properties of water as compared to air cooled chillers.The primary advantage of water is that the film coefficient is 10-100 times better with water than air.

Film coefficient controls heat transfer with given constant area and temperature difference.

Water-cooled HVAC units make less noise and give more cooling per square foot.

While air cooled chillers have comparatively less cooling per square foot and are more noisy HVAC machines.

Noisy machines are annoying especially for occupants of nearest offices or zones.

While comparing air and water cooled chillers, an overall system cost (both running and installed) has to be worked out.

Size of HVAC unit matters when selecting the water cooled chiller or air cooled chiller.

Smaller HVAC units are usually air cooled, larger are water cooled.

HVAC engineers have to evaluate air cooled and water cooled chillers keeping in mind various factors.

Refrigeration engineer has to consider the ambient conditions (wet bulb and dry bulb), number of hours of operation, part load pattern and cost of maintenance etc.


HVAC experts have no single answer to when asked “water cooled chiller is better or air cooled chiller?”.

The fact is that “It all depends”.

Water-cooled chillers will normally condense at an average lower pressure than air-cooled chillers.

This is because the water temperature will usually be less than the air temperature.

If your condenser is operating at lower pressure then it is directly reflected and translated into lower operating costs or KW /TR(Ton of refrigeration).

The difference between the wet-bulb temperature and the dry-bulb temperature gives the available difference between the condensing temperatures of water-cooled and air-cooled condensers respectively.


Cooling towers and/or evaporative condensers have main disadvantage of maintenance and water treatment costs.

This running cost is not present in air cooled chillers.

Despite the advantages of lower IKW/TR of a water-cooled system or water cooled chillers, sometimes, air-cooled systems are preferred for various applications.


For example in 24 hour application of HVAC chillers,the night time dry bulb temperature are generally much lower than the day time dry bulb temperature, as compared to the difference in wet bulb temperature between day and night.

This advantage is best capitalized by an air-cooled system or air cooled chillers.

Other examples could be where the wet bulb temperatures are very high, especially coastal areas.

When comparing water cooled and air cooled chiller,scarcity of water and hence cost of water is another issue which is a point to be considered while deciding on the system.

This happens in many countries .

Space is also of importance in some applications.

Air cooled chillers can utilize open space, such as a parking lot, roof or ground level area.

Although smaller in size but Water cooled chillers require a mechanical room and cooling towers.

Air recirculation is very important for air cooled chillers.

Any obstruction in the circulation of air near water chillers would adversely affect the performance of air cooled chillers.

Air cooled chillers can have problems with recirculation if there are walls higher than the unit or too many units to close together.

If there is a situation where outside walls are required for building code and the unit will not be receiving enough fresh air, then a water cooled application may be the best option.

Water cooled chillers have longer life,higher efficiency,large capacity and also refrigerant containment.

While looking on disadvantatges of air cooled chillers,they have lower efficiency,comparatively short life span and available in low capacity range.

-----------------------------------------------------------------------------------

The illustration below compares the operating cost of an air cooled variable speed centrifugal chiller versus a water cooled screw chiller.

This comparison is based upon a 140 ton load, weather data, $.07/kwh electrical costs, $5.00/1000 gallon water and sewer costs and 6,000 hrs/year operation.

Because the air cooled chiller uses floating head pressure control, the compressor energy costs are actually less than the water cooled chiller's compressor costs-a $4,757 difference ($20,585-$15,585).

Adding the tower system's operating cost of $17,429 results in a $22,186/year operating cost savings.

A more efficient variable speed water cooled centrifugal chiller reduces the cost difference to $16,725-still a significant annual cost penalty.

---------------------------------------------------------------------------------
[img][/img]

[img][/img]
الرجوع الى أعلى الصفحة اذهب الى الأسفل
معاينة صفحة البيانات الشخصي للعضو http://technolabelbahaagp.googoolz.com
Admin
Admin
avatar

عدد المساهمات : 3513
تاريخ التسجيل : 15/09/2009
العمر : 49
الموقع : مصر

مُساهمةموضوع: رد: الفرق بين تشيللر التبريدى بالمياه والتبريدى بالهواء   الجمعة مايو 10, 2013 12:25 pm

Water-Cooled Chiller vs Air-Cooled Chillers

Difference

There are two types of Mri Chillers: Air-cooled chillers and Water-Cooled Chillers

What is the difference between an air cooled chiller and a water chiller?

These two terms have to do with how the chillers refrigeration system gets rid of the heat it removed from the water process loop.

In the case of an air-cooled chiller, heat is rejected to the ambient air.

In the case of a water-cooled chiller, heat is rejected to some other water source such as a cooling tower plant chilled water system.
الرجوع الى أعلى الصفحة اذهب الى الأسفل
معاينة صفحة البيانات الشخصي للعضو http://technolabelbahaagp.googoolz.com
Admin
Admin
avatar

عدد المساهمات : 3513
تاريخ التسجيل : 15/09/2009
العمر : 49
الموقع : مصر

مُساهمةموضوع: تصميمات لوحدات الشيللرات التبريدية بالمياه والهواء   الجمعة مايو 10, 2013 12:31 pm

water chillers

by

technolab el-bahaa group

general.dr

bahaa badr

water treatment consultant

01229834104

Water chillers are used for cooling mould to improve the smooth finish of plastic products and reduce the internal stress.

It is easy to demould plastic products and the output has been raised.

Water chillers are also used for cooling all kinds of lubricating oil and hydraulic transmission oil to control the oil temperature accurately and improve the processing accuracy.

chillers are developed on the basis of introducing and assimilating the products' merits from the Europe and America.

Utilizing imported efficient hermetic compressor, heat exchanger and multifunction controller,


chillers are easy to operate and maintenance.
Feature

Compact and completely sealed structure,

but high efficiency;

Easy installation

, operation and maintenance;

Adopts U.S.A. or Japan compressor and electronic parts to ensure long service life;

Adopts pipe type evaporator and condenser to enhance heat exchange efficiency;

Equipped with thermostatic expansion valve

, motor protection device, high/low pressure switch

, high pressure safety valve(or fusable insert) and alarm.

Featured Parts

Compressor -- TECUMSEH/France (<=12Hp), Copeland/USA(<=15Hp), Danfoss

Performer(<=25Hp);

Dryer Filter, Pressure Controller -- Danfoss/Denmark (Mexico);

Temperature Controller -- DEI/Taiwan;

Electrics -- Schneider/Shanghai;

Pressure Gauge -- Coconut Tree/Taiwan;

Chilled Water Pump -- DAB/Italy.

Specification

General Specification

Refrigerant: R22.

Controller: PLC with digital LED display.

Temperature of inlet cooling water (for water cooled type only): <=320C.

Temperature of circumstance (for air cooled type only): <=350C.

Temperature of outlet chilled water: 5~200C.

Power Supply: 380V/3p, 50Hz (or OEM).

Compressor: Swirl Rotation Type, Hermetic

Safety Device: High/low Pressure Switch, Freeze Protector, Overload Relay, etc..

Refrigerant Control: Capillary(<=KC05) or Thermostatic Expansion Valve(>KC05).
الرجوع الى أعلى الصفحة اذهب الى الأسفل
معاينة صفحة البيانات الشخصي للعضو http://technolabelbahaagp.googoolz.com
 
الفرق بين تشيللر التبريدى بالمياه والتبريدى بالهواء
استعرض الموضوع السابق استعرض الموضوع التالي الرجوع الى أعلى الصفحة 
صفحة 1 من اصل 1

صلاحيات هذا المنتدى:لاتستطيع الرد على المواضيع في هذا المنتدى
مجموعة تكنولاب البهاء جروب :: قسم معالجة وتنقية وتحاليل المياه :: معالجة ابراج التبريد المفتوحة والمغلقة والشيللرات-
انتقل الى: