30K Air Conditioner Air Enthalpy Method Calorimeter Energy Efficiency Temperature Humidity Test Chamber For Household

Charter 1 Laboratory General Introduction

Outline

This air enthalpy method calorimeter lab designed and manufactured by Anhui KingPo ZhiRui technology limited company consists of an indoor side room and an outdoor side room. The refrigerating capacity, heating capacity and other performances of an air conditioner are tested by means of testing the lab parameters, such as temperature, pressure and electrical performance. This installation can be used to test the performance of window type, split type, free-standing type AC air conditioners, and can also be used for other standard operating condition related tests and expanded tests, meeting the need for product sampling inspection and product development.

Also, the lab equipped with special security devices, can test the UUT that use R32 refrigerant.

In this test system, the operation of the equipment is controlled by a programmable controller and a HMI, test running data are collected by a high accuracy data collector, the data can be transferred at real time to an upper level computer for processing, the computer displays, stores, outputs and prints test reports.

Standards

Design and Testing according to the following standards:

► SASO 2682 DUCTED AIR-CONDITIONERS AND AIR-TO-AIR HEAT PUMPS-TESTING AND RATING FOR PERFORMANCE

► GB/T 7725-2004

Principle

► Operating Environment

This test room adjusts air dry bulb and wet bulb temperatures by means of balanced temperature and humidity adjustment, i.e. the refrigerating system works continuously for cooling and dehumidifying; dry and wet bulb temperature control meters control the power output of the heater and humidifier respectively to adjust heat and moisture discharged into the air, thus acquiring the desired air temperature and humidity.

► Test Principle

Refrigerating capacity via air enthalpy difference approach is determined by the indoor side room and calculated in accordance with the following formula:

Where: Φ(c) The total refrigerating capacity measured in indoor side room, W;

qml Air volume of the air conditioner in indoor side room, m3/s;

ha1 Air enthalpy value of the inlet of the air conditioner in indoor side room, J/kg (dry);

ha2 Air enthalpy value of the outlet of the air conditioner in indoor side room, J/kg (dry);

Vn’ Humid volume at test point: m3/kg;

Wn Air humidity at test point: kg/kg (dry);

q0 Heat loss rate of air volume device

Heat pump heating capacity via air enthalpy difference approach under stable condition is determined by indoor side room and calculated in accordance with the following formula:

Where: Φhi Heating capacity of the heat pump of the air conditioner in indoor side room, W;

Cpa Air specific heat, J/ (kg.K) (dry);

ta1 Inlet temperature of the air conditioner in indoor side room, ℃;

ta2 Outlet temperature of the air conditioner in indoor side room, ℃;

Construction Process

► Laboratory chamber installation

-Air handling system installation

-Refrigerating unit installation(Out of the chamber)

-Humidifying device and pipe installation (Out of the chamber)

-Cooling water tower and pump installation(Out of the chamber)(If using water cooled condenser)

-Air handling unit installation (In the chamber)

► Air flow measurement system installation

► Measurement and control system installation

-Electrical wiring and connection engineering

-Sensors and computer communication engineering.

► Test run and test conditions commissioning.

► Make delivery report and delivery to the customer

Main Test Steps

► Before Starting Up

-Check whether last running record,power supply,water supply and ect.d are normal.

-The unit under test (UUT) in accordance with the normal operation of the installed

► General Operation

-Close the power breaker in the test control panel, and push the “Start” button.The initial window (i.e. the main window) is displayed on the HMI.

-On the HMI, turn on the “ Fan” for indoor and outdoor side rooms, “Heating” and “Humidifying” for indoor and outdoor side rooms, and“ Static Pressure Fan”, and turn on the“ Refrigerating Machine” and “Nozzle” as required.

-Set temperature controller’s SV value according to operating conditions.

-Turn on frequency variable power supply and “Test Power” on the HMI to energize the UUT.

-Once the operating condition temperature is stable, the tested unit’s parameters can be measured.

-Turning off the equipment: The procedure for turning off the equipment is the reverse procedure for turning on the equipment.

*Detailed directions for use and precautions will be listed in the specification.

Charter 2 Laboratory Parameters

Types of UUT and environment

► Types of unit under test (UUT)

-Wall type

-Ceiling type

-4 way type

-Floor stand type

► Measurement range of UUT

-Testing Capacity Range:

-Cooling Capacity: 5000～24000Btu/h

-Heating Capacity: 5000～30000Btu/h

-Range of air flow:

-Air Flow: 200~1500m³/h (118～883 ft³/min)

-The electric parameter:

-Single phase power: 0～3kW

-Single phase voltage: 0～300V

-Single phase current: 0～20A

-Frequency: 50/60Hz

-Power factor: 0～1

► Power Source of UUT:

-Type: Three Phase, Four Wire, 45kVA. (1 set)

-Supply station: 1 air conditioner.

► Environmental conditions for instrument operation

-There should be no strong air flow, intense sunlight direct radiation and corrosive gases in the environment;

-There should be no intense vibration sources and interference sources in the environment;

-Ambient temperature: 0℃~45℃, relative humidity: < 90%;

-Operating environment of the test control room:

-Temperature: 23℃±5℃

-Humidity: <85%RH (including circumstance when the machine is not operating)

-There should be no insect, rat and corrosive gases;

Testing items

► Rated cooling capacity (T1, T2, T3).

► Rated heating capacity (High, Low, Extra-low)

► Airflow

► Dehumidification capacity

► Input power

► EER(COP)

► Frequency

► Current

► Voltage

*Detailed test method and calculation according to the standards.

Measurement Accuracy and Repeatability

*If capacity no more than 1500W, Measurement accuracy within ±30W, Repeatability accuracy within ±1.5%

Conditions of tempertature and humidity

► Major test conditions

► Continuous running time

-The continuously running time of the outdoor side room under the low temperature is as follows:

-Continuous running no less than 10 hours under the condition of DB=2.0℃, WB=1.0℃.

-Continuous running no less than 8 hours under the condition of DB= -7.0℃, WB=-8.0℃.

-Cooling from 35℃ to -25℃ less than 2.5 hours.

Uncertainties of measurement

-RTD temperature precision ≤±0.1℃

-Static pressure difference precision ≤±(±0.5%RD)+(±0.5%FS)

-Nozzle pressure difference precision ≤±(±0.25%RD)+(±0.25%FS)

-Electrical inputs precision ≤±(±0.25%RD)+(±0.25%FS)

-Thermocouple temperature precision ≤±0.5℃

-Refrigerant pressure precision ≤±(±0.25%RD)+(±0.25%FS)

-Relative humidity transmitter precision ≤± 3.0%RH

Charter 3 Equipment Introduction

Structure

This test room consists of an indoor side room and an outdoor side room, mainly including the room structure, a set of air conditioning device, two set of air capacity measuring device, a set of electrical control system, and a set of measuring system.

Chamber

► External dimensions (mm): 5000W×9500D×4000H;

-Indoor side room dimensions (mm): 5000W×5000D×4000H;

-Outdoor side room dimensions (mm): 5000W×4500D×4000H;

► Indoor temperature range: 0~60℃,RH30%~95%

Outdoor temperature range:-25℃~60℃,RH30%~95%

► Materials: δ=100mm rigid polyurethane foam insulation, 0.6t color steel plate on inside and outside walls and ceiling, 3t stainless steel floor covered with 0.6t color steel plate.

► Doors: Single door (mm): 1200W×2200H,(1 set for each side)

► View windows(mm): 400W×500H,(1 set for each side)

► Perforated Ceiling: Aluminum alloy orifice plate

► Lighting:

-Indoor side: LED light×4

-Outdoor side: LED light×4

► Water drainage:DN50,(1 set for each side)

► Psychrometric box

-Dry bult and wet bult with automatic water feeding

-Air speed of thermometer: 4～6m/sec

► Thermocouple box (1 set in indoor side,2 set in Outdoor side)

-20 points, installed on the separation wall.

► Refrigerant Pressure Transmitter panel (2 set in Outdoor side)

-4 pieces Refrigerant Pressure Transmitter in Outdoor side, installed on the wall corresponding test station.

► Test unit panel(2 set for each side)

-Breaker, voltage meter and sockets are installed on it which is installed on the separation wall.

-It provide 3-phase power source.

► Room temperature protector (1 set for each side)

-1FT1 is used for test room over-temperature protection; it is installed on the wall above the door, to prevent test room temperature from being too high; the temperature is set to 60℃.

Refrigeration

Indoor side

► Air handling unit (Placed in indoor side room)

-Model: stainless steel

-Blower: twin suction multi-blade fan

-Evaporator: uses F5/8 copper tube with aluminum radiation coil pipe;

-Heater: 36KW, assembled with 1.5kW stainless steel, heating capacity: 0~100% adjustable.

-Humidifying tube: 65A, stainless steel; humidifier steam is sent into the air conditioning panel by the humidifying tube and blown out after mixed by the fan.

-Temperature protector:Temperature protector is used for heating tube overheating temperature protection; it is installed around the heating tube to prevent the heating tube from overheating; the temperature is set to 110℃; Temperature protector is used for air handling unit over-temperature protection; it is installed at return air outlet of the air conditioning panel to prevent air handling unit temperature from being too high; the temperature is set to 80℃.

► Refrigerating unit

-Specification: water cooling, completely sealed

-The unit is equipped with high and low voltage protectors: 5HP×1+7HP×1,Danfoss or Copeland

-Refrigerant: R22

► Humidifier

-Specification: Twin layer stainless steel insulation structure, with heating tubes

-Power for each tube: 9kW×3 (totally ,27kW), humidification capacity: 0~100% adjustable.

-Temperature protector: Temperature protector is used to prevent the humidifier from overheating and burning out the electric heating tube for humidification; the temperature is set to 120℃.

-Humidifying water supply tank. It is an automatic water supply device for the humidifier.

Outdoor side

► Air handling unit (Placed in outdoor side room)

-Model: stainless steel

-Blower: twin suction multi-blade fan

-Evaporator: uses F5/8 copper tube with aluminum radiation coil pipe;

-Heater: 36KW, assembled with 1.5kW stainless steel, heating capacity: 0~100% adjustable.

-Heater for low temperature: 27KW, assembled with 3kW stainless steel, heating capacity: 0~100% adjustable.

-Humidifying tube: 65A, stainless steel; humidifier steam is sent into the air conditioning panel by the humidifying tube and blown out after mixed by the fan.

-Temperature protector: It is used for heating tube overheating temperature protection; it is installed around the heating tube to prevent the heating tube from overheating; the temperature is set to 110℃; 2FT4 is used for air handling unit over-temperature protection; it is installed at return air outlet of the air conditioning panel to prevent air handling unit temperature from being too high; the temperature is set to 80℃.

► Refrigerating unit

-Specification: water cooling, semi-closed sealed;

-The unit is equipped with high and low voltage protectors: 5HP×1+5HP×1+9HP×1,BITZER or BOCK

-Refrigerant: R404a

► Humidifier

-Specification: Twin layer stainless steel insulation structure, with heating tubes

-Power for each tube: 9kW×3 (total 27KW), humidification capacity: 0~100% adjustable.

-Temperature protector: It is used to prevent the humidifier from overheating and burning out the electric heating tube for humidification; the temperature is set to 120℃.

-Humidifying water supply tank: It is an automatic water supply device for the humidifier.

► Cooling system (1 set for all)

-Cooling tower: 30Rt

-Pump:Piping centrifugal pump

Air flowmeter assembly

► Air receiving chamber:(2 placed in indoor side room)

-The enclosure is built with 75mm polyamine boards.

-Size(mm): About 1800W×1100H×1900L(max)(*The design drawings shall prevail)

-Dimensions of the tested unit installation window, 400W×600H;

-There is a static pressure measurement hole in the front section;

-The middle section is an air mixer that fully mixes the air sucked in by the air receiving room from the outlet of the tested air conditioner;

-The rear section there is a outlet temperature measuring device that measures dry bulb and wet bulb temperatures of the outlet of the tested air conditioner.

► Nozzle chamber:(2 placed in indoor side room)

-Size(mm): About 1000W×1000D×2200H(max)(*The design drawings shall prevail)

-Nozzle: F40×1, F50×1, F70×1, F80×1

-The nozzles are opened and closed by means of opening and closing the nozzle lid automatically.

-Nozzle combination can be selected in accordance with the outlet air volume of the tested air conditioner.

► Blower:

-Speed controlled by frequency variation

-Type: Centrifugal blower

► Mobile motor elevating platform:

-Elevating height: 0.6m~1.2m

► Temperature measuring device:

-It measures dry bulb and wet bulb temperatures of the outlet of the tested air conditioner.

-Type: The measurer uses an automatic water supply type dry bulb and wet bulb.

Explosion-proof facility

► Explosive refrigerant sensor warning system

-R32 Refrigerant sensor 4 set:2 set each side

-Alarm system setting:When the gas concentration reaches 10% of the minimum self-ignition level, the sound light alarm signal is emitted；When the gas concentration reaches a minimum of 25% of the minimum self-ignition level, all the equipment power in the laboratory is cut off, the exhaust ventilation system is opened, and the alarm signal is emitted.

► Exhaust ventilation system

-One set each side, each room has a vent for air inlet and outlet, controlled by the cylinder

-Exhaust vents connects with a fan. Combine the volume of the room, 5 minutes a circulate, the fan is installed in the laboratory outside.

► Anti-static device

-An electrostatic elimination ball is installed to avoid static electricity in the room

-The laboratory has reliable grounding and no electrostatic regeneration, the ground resistance is not greater than 4Ω, the laboratory door has rubber seal bars to prevent metal collisions.

Control System

► Control panel: Inside the panel there are low voltage electric appliances, PLC, frequency converter and HMI, which are used for controlling the operation of equipment in the test control room, and digital instruments such as control instrument, recorder and power meter, which are used for monitoring equipment in the test control room.

► Control items and equipment

-Indoor room D.B. Temperature Control

-Indoor room W.B. Temperature Control

-Outdoor room D.B. Temperature Control

-Outdoor room W.B. Temperature Control

-Air flow Device Differential Pressure Control

Measurement System

► Measurement items and equipment

-UUT Outlet D.B. & W.B. Temperature Measurement

-Nozzle Temperature

-TC temperature

-Barometer

-Nozzle differential pressure

-Refrigerant Pressure

-Power Measurement

-Recorder Unit

-PLC,HMI and PC

Software

► The software have excellent man-machine communication functions, and being able to display all parameter’s variation curves at real time, and to enlarge and print various cure combinations and test reports at real time, etc.

► During the test, all interfaces can be can be presented in Chinese and English.

► All curves and reports can be saved automatically or manually as required, and all test curves and various data can be retrieved via inquiring the inquiry system.

► The software has such a function as calculating and correcting parameters automatically.

► The software can set the set value for control instruments automatically by communicating with control instruments.

► Data collection scanning speed: ≥5 seconds adjustable.

► All collected data can be continuously monitored at real time in the form of digital and curve diagrams, and can be conveniently zoomed in and out, toned, moved, compared, configured, saved, read and printed.

► When the test is completed, the software can automatically perform statistical analysis and processing on the original data, select designated display format, and print test reports.

► The software can automatically calculate test results such as refrigerating (heating) capacity, air volume and power consumed, etc.

► Historical data inquiry:

-Parameters such as test date, test item, test number and machine model can be inquired;

-Data analysis and display can be performed on the inquired historical data in the form of datum or curve. Analytical graphics can be viewed, zoomed in and out, moved and printed based on intuitive time interval;

-The inquired historical data can be selected for display in a designated format, and for printing test reports.

► Various parameter collected by connected instruments can be recorded based on an adjectival time interval. It is optional to save the measured data into the database automatically or manually.

Charter 4 Quotation

■ Quotation list

Kingpo Technology Development Limited is a pioneer and leader of global safety testing equipment manufacturer.We offer one-stop service for worldwide labs from R&D,testing,production to after-sales service.We dedicate ourselves in achieving optimal production quality for our customers,reduce cost and enhance enterprise’s international competitiveness.

Kingpo is accredited by International Electrotechnical Commission(IEC) and becomes a nominated supplier and is officially issued a CBTL certificate.We are now among the world’s leading laboratory testing equipment manufacturer to produce the highest level and more standard testing equipment for global Electrotechnics labs becoming nominated supplier of NEMKO,UL,PHILIPS,CTK,CVC(Vkan Certification & Testing Co.,Ltd),Dongguan Quality Testing,China Household Electric Appliance Research Institute,Russia National Standard Institute,Belarus National Standard Institute,Korea National Standard Institute,etc.Lamp cap gauges and testing equipments produced by Kingpo,which are calibrated by CNAS and ilac-MRA ,have a high international reputation.

Kingpo aims at manufacturing world class testing equipment for Chinese labs,establishing an independent R&D center and introducing foreign state-of-the-art technology and international high-tech talents.Adopting a creative design concept,taking sensor data acquisition as forerunner,computer control technology as lead,imported transmission device with high accuracy and low noises,we have developed more than one hundred and sixty products.

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Kingpo’s domestic customers include Entry-Exit Inspection and Quarantine Bureau, Bureau of Technical Supervision,Product Quality Supervision and Inspection Institute,UL Lab(Underwriter Laboratories),TUV Rheinland,SGS and other electronic manufacturer.Our products are exported to international market and have also established distributorships in HK,Vietnam,Singapore,Thailand,Iran,India,

Africa,New Zealand,Australia ,Germany and so on.

Service is an essential factor to improve enterprise’s competitiveness.Therefore,Kingpo has always made every effort in improve service level and service value.Before sale,we have professional engineering team to provide customers with comprehensive consultant and customized service.After sale,we have after-sale team to offer customer timely and satisfying technical support and product maintenance.

By means of excellent product competitiveness and complete service,our company has won numerous customers high praise and sincere trust.In complying with technical improvement and increased efficiency and quality assurance of these products ,we insist on providing high end products to market and dedicating to being a leader in testing equipment industry.