Ake btu measurement system

AKE BTU Measurement System


SHARING INNOVATIVE TECHNOLOGY


Content

Company profile

Certification

Market Background

BTU Measurement System

Market and Typical Cases

ContentsContents


Part I: Company Profile

Founded in 1997

Main Products: BTU Measurement System & Parking Guidance System

Certificates: ISO9001:2008

Over 700 projects in China

Independent Intellectual Property Right

6 patents



Milestone and honors:

In 1997, AKE is establishedIn 1998, the first generation of AKE BTU Measurement System was developed;In 1999, the first project was installed and put into practice (1st project in China); In 2000, obtained the first national patent in China;In 2001, obtained the “Innovation and Technology Fund” from Guangdong;In 2002, AKE products were chosen as the key new product in Guangdong;In 2003, obtained the progress prize in science and technology of Foshan;In 2004, obtained the “Innovation and Technology Fund” again;In 2005, passed ISO9001 Quality Management System;In 2006, obtained the hi-tech enterprises of Guangdong, named “Construction technological innovation superior enterprise”;In 2007, obtained “Annual energy-saving influential enterprises” (Construction);In 2008, obtained the patent prize of Foshan; obtained the certification of hi-tech enterprise of Guangdong;In 2009, obtained CE certification for partial products;In 2009, nominated as the chief drafting organization to compile National Time-based BTU Measurement System standard.



Focus AKEFocus AKESociety

Media Media

GovernmentGovernment

After twelve years developing, AKE puts the heart into BTU Measurement System

manufacture, research and development, makes a significant contribution to the

energy-saving emission, gets more and more attention from different field.


Part I: Company ProfileGovernment

19th, Sep, 2009 Mr.Yang Wang (Secretary of Guangdong province)


Part I: Company ProfileGovernment

Ministry of Industry & Information Mr.Baoqing Dong (Sub-director)



Expert Mr. Wu Yuanwei (HVAC fileld)

HVAC field



Technical conference

HVAC field


Part II: Certification



Famous brand High-tech enterprise

Patent Influential enterprise



Patent Production licence

Dominant enterprise High-tech products Certificate of metering guarantee


Part III: Background

Along with the fast growth of economics, chilled water system is widelyused. In the past, the consumer was simple paid by area shared, whether they used it or not, they must pay the same air conditioning fee, so it wouldcause a lot of disputes between owner and user.

To a certain extent this method wasted enormous energy. So, how tocharge the energy consumption billing for chilled water system became abig problem for the building owner.

AKE developed the first generation of BTU measurement system in 1998 which provide an scientific and reasonable charging basis and solved this problem excellently. It leads people to establish correct consumed habit tosave energy consciously and have yielded remarkable social and economic benefits.


Part IV: BTU Measurement System

◆Energy-based metering Principle: Calculates the flow rate and temperature of supply and return water, based on heat transmission formula to calculate the energy consumption;

◆Time-based metering Principle: Calculates the efficient running time of high/middle/low speed, changes the total running time into an equivalent time, treats total equivalent time as user’s running time, finally as per rated unit price ($/hrs) to calculate the total fee.


System diagram




◆Energy-based Metering

Principle and working processThe BTU meter real-time monitors the temperature of water return & supply bytemperature sensor PT1000, monitors the flow rate by flowmeter. According to Heat Transmission formula to integrate the cooling or heating consumption. Finally as per rated unit price (Dollars/MW) to calculate the total energy consumption of each users.




Heat Transmission Formula

Notes: Q: The volume of energy consumption ( unit: J or wh) qm: Unit weight of water passed by flowmeter (unit: kg/h) qv: Unit volume of water passed by flowmeter (unit:m3/h) ρ: Density of water (unit: kg/ m3) Δh: Enthalpy of water (unit: J/kg) Γ:Time (unit: h)



System composition:

Top layer: PC and Printer Second layer: J02 Data Converter Third layer: G04P Data Manager Four layer: C03P BTU Meter, Electromagnetic flowmeter Temperature sensor PT1000




Brief description:

C03P BTU meter is the key device in this system, it collects the data from

temperature sensor and flowmeter, basing on Heat Transmission principle the

system automatically integrates energy consumption and transfers it to PC.

Could be checked consumption volume by user or operator, real time shows

temperature, flow rate and energy

consumption. etc., meanwhile it has the

ability to show history data with bar chart.

Partial products -- C03P BTU Meter


Partial products– C03P

Characteristics: Large LCD screen, total 4 rows display in each page;

Accuracy class: Class 2, Environment class: Class A

Shows historic data with bar chart by every day/month/year;

Multi-password prevents data missing or being revising;

Current input (4-20mA) and pulse input(0-200Hz) are compatible;

Modbus protocol based on RS485 communication;

Adopts photo-coupler , good anti-interference performance;

Programmable minimal flow can be ignored;

Secures storage, stores data automatically once power is cut off;

Remote alarm and clock function, remotely revises clock periodically;

Data output interface, can be integrated into Auto Meter Reading system;



Partial products – Electromagnetic flowmeter

High accuracy;

No mechanical movement part,

long lifetime and maintenance free;

Model: Ducted type -- EMF8000

Inserted type – DWM2000


EMF8000

DWM2000


Pipe diameter : DN25-200;

Output signal:4-20mA;

Medium temp:- 40 ~180℃

Pressure grade: DN<100: 4Mpa

100≤DN<200: 1.6Mpa；

Accuracy: 0.5%;

Measured sensitivity: 0.1m/s;

Split designed, converter and sensor are separately mounted.

Ducted Electromagnetic Flowmeter – EMF8000



Pipe diameter : DN100-400;

Output signal:4-20mA;

Medium temp:-25-150℃

Pressure grade: 2.5Mpa；

Accuracy: 2%;

Conductivity:≥20uS/cm;

Protection grade: IP66;

Electronic part can be changed without discharging water.

Inserted Electromagnetic flowmeter – DWM2000



Characteristics

Degree of Accuracy: 1 mk;

Wide output signal and high sensitivity: 1 level higher than other thermometer;

Wide testing range and good stable performance, under low sensitivity situation,

keeps stability below 0.1℃;

4-wires, when the wire is extended, the testing result won’t be affected.

Partial products – 4-wires PT1000


With covers and sleeves protected, easy installation.




Characteristics & Application: High accuracy;

Calculates the energy consumption by actual using;

Considering cost performance, it is suitable for installing at

large squares (big water pipes), likes shopping mall, office, public area, etc.



Flow Meter Types

Flow meter

With mechanical movement parts Without mechanical movement parts

Duct type Turbine flow

meter

Inserted type Turbine flow

meter

Vortex flow meter

Electromagnetic flow meter

Ultrasonic flow meter



Ducted type turbine flow meter Including horizontal and vertical rotator. Need horizontal flange installation, Not the best

suit for HVAC chilled liquid usage, because of the not pure water environment, easily be block by the incrustant, need a lot of maintenance jobs because it adopts the rotator (mechanical movement parts), and greatly affect the flow testing results once the rotator is blocked.

Not recommended in HVAC liq

uids



Inserted type flow meter

Including strong magnetic, weak magnetic, and non magnetic types. Also not a best suit for HVAC liquids because of its not very pure water environment, easily incrustant and be easily blocked, wind-up, adsorption etc, the testing accuracy will be greatly affected after not a very long time usage.

Not recommended in HVAC liquids



◆Energy-based Metering Project

This plaza is a high-class office, has two

buildings: north & south tower, total 196,000 m2;

North tower: total 33 floors

South tower: total 34 floors

Condition: Each floor will be hired by one user;

Application: Each floor installs a set of BTU

meter, besides installs a set of

BTU meter in the main pipe.

Guangzhou Poly International Plaza



◆Energy-based Metering Project

Shanghai Youyou International Plaza

It was a super comprehensive plaza

including hotels, apartments, offices,

shops, restaurants and Chambers, etc,

total 210,000m2. Building I was a 5 star

hotel, building II was centralized offices,

apartments, and others.

Aiming to this large squares we selected

Energy-based metering system.



How to metering the small square?



It is a innovational idea created by AKE.

Principle: Installs a Data Collector to connect FCU and Motorized valve,

calculates efficient run-time of FCU at different gear position (H/M/L speed) and changes it into an equivalent time, treats total equivalent time as user’s running time, finally as per rated unit price ($/hrs) to calculate the total fee.

◆Time-based Metering



Chilled water system is cooling/heating

FCU works or not

Motorized valve is opened or not

System starts

Data Collector stores the efficient running time at H/M/L gear speed

Equivalent time = speed running time* gear coefficient * Coil coefficient

Yes

Yes

Yes

No

No

No

charge

No


Total fee= Equivalent time*Unit price


System composition:

Top layer: PC and Printer;

Second layer: J02 Data Converter

Third layer: G04 Data Manager

Four layer: Data Collector






Top layer – J02 Data Converter

Takes the responsibility to transmit data and control whole system. All information are finished and passed by Data Converter, such as receives the indication from PC and transmits some data to PC.




Third layer – G04P Data Manager

Matches with Data Collector or BTU Meter and manages them by group;

Downwards: Real-time communicates with Data Collector or BTU Meter

and monitors its running-status;

Upwards: Communicates with Data Converter, accepts indication from

Data Converter and uploads data;

Each G04P can be max loaded 64pcs device.




Fourth layer – Data Collector

C02B Data Collector

C02T Data Collector




Fourth layer – C02B Data Collector

It is a data acquisition device which performs real-time to detect motorized valve and FCU status, calculates the running time of different fan speed. When the motorized valve is opened basic on air condition is cooling or heating and FCU is operated, C02B starts to calculate the running time of each gear positions.

Besides, it has a control function -- close valve.


Characteristic Cost-effective;

Low power consumption, stable and reliable data transmission;

Use socket connector (wires box), easily install and maintain;

Suitable for connecting with thermostat or three-speed switch;

Three-ways or two-ways valve.



Fourth layer – C02B Data Collector


Utilizes microcomputer technology, integrates the thermostat and BTU measurement function. Under certain condition (efficient running), C02T stores heating and cooling running time basic on different gear positions (H/M/L speed) and accumulates them automatically, shows the data via display.


Fourth layer – C02T Data Collector




Fourth layer – C02T Data Collector

Main function:

With the thermostat and metering function；

Cooling/Heating/Ventilation mode selectable, adjusts the fan speed at

High/Middle/Low automatically, temperature correction；

Remote control ON/OFF；

Far keyboard locked, prevents temperature and fan speed optionally adjust;

Realizes pre-paid function, 24hrs advanced remind if haven’t enough

balance in account, stopped service automatically;

Memory setting function;

Failure warning function.

Infrared ray remote control (available/optional).


Characteristics

Large LCD display, blue background;

Includes a thermostat;

Two kinds mode: C02-8B and C02-8C;

Consumer can check consumption by themselves;

Use relay, high dependability;

Split type, isolate high current & low current, safety.



C02T-8B C02T-8C



◆Time-based Projects

Guangzhou Renfeng Mansion

It is a high class office, total 100,000m2,152.5 height,

42 floors;

Has total 1922 FCU, every floor had different users;

Application: Installed 1922 set C02T.



◆Time-based Project

Nanjing Fuxin building

● Total: 42 floors● Covered area：87,000m2 ● FCU: 800 pcs● Installed at 2003



◆Time based & Energy based Comprehensive Project

Hangzhou Longhill Hotel

•Time-based metering：600 set

•Energy-based metering:4 set

•Flowmeter mode: Inserted electromagnetic type



◆Time based & Energy based Comprehensive Project

Changsha Yunda International Plaza

Had two tower-style buildings, total 100,000m2.

Consisted of hotels, offices, apartments, bank,

brand shops, etc.

According to our suggestion, large squares

such as banks, shops and hotels adopted

Energy-based metering system, but the

offices, apartments whose terminals were

FCU adopted Time-based system.


Part V: Market & Typical case

East

South

South-west Middle

North

market occupancy:

Over 60%

China

market



i) South of China:

Guangzhou R&F Profit Plaza Guangzhou CITIC Plaza Foshan Global Plaza

Guangzhou Pazhou Poly Plaza Shenzhen Ocean Investment Center Guangzhou International Finance Centre



ii) East of China

Shanghai Henglong Plaza Shanghai Youyou International Plaza

Shanghai Golden Eagle Building Shanghai Grand Gateway Plaza

Shanghai Merrylin Hotel



iii) North of China

Institute of Zoology Chinese Academy of Sciences

Beijing Shunyi Industry Plaza

Beijing Zhongtie Plaza

Tianjin Jinwan Mansion

Chinese Academy of Engineering -academician office Zhengda apartment


Part V: Market & Typical case iv) Middle of China

CNC of Xinxiang Zhengzhou branch

Henan Xinxiang Victoria Plaza Changsha Yunda International Plaza

Anyang Sugarbush Mansion

China Everbright Bank-Henan branch

Wuhan Yinhai Huating Mansion



v) West-south of China

Chongqing Sheraton Hotel

Chongqing Changan Lidu Mansion Sichun Sky Building

Chongqing CITIC Bank Chongqin Days hotel


Website: www.ake.com.cn

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Ake btu measurement system