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 established
In 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 AKE
Society
MediaMedia
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.

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

Government
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 widely
used. 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 would
cause a lot of disputes between owner and user.
To a certain extent this method wasted enormous energy. So, how to
charge the energy consumption billing for chilled water system became a
big 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 to
save 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 process
The BTU meter real-time monitors the temperature of water return & supply by
temperature 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 recom
m
ended
in
HVAC
liquids

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 PlazaShanghai 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

iv) Middle of China
CNC of Xinxiang Zhengzhou branch
Henan Xinxiang Victoria PlazaChangsha 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 MansionSichun Sky Building
Chongqing CITIC BankChongqin Days hotel

Website: www.ake.com.cn
SHARING INNOVATIVE TECHNOLOGY

Ake btu measurement system

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