Refrigeration And Air Conditioning Lab Equipments

Product Details:

Other Details:

• Investigation of a vapour jet compressor
• Refrigeration circuit with condenser, evaporator and vapour jet compressor for refrigerant
• Vapour circuit with pump and vapour generator for operating the vapour jet compressor
• Transparent tank with water-cooled pipe coil as condenser
• Transparent tank with adjustable heater as evaporator
• Flooded evaporator with float valve as expansion element
• Vapour generator with electrically heated water jacket
• Measurement of amperage and voltage to determine the power at the evaporator

Technical Data:

• Dmin convergent-divergent nozzle
• Approx. 1, 7mm
• Dmin mixing jet: Approx. 7mm

Condenser:

• Tank: Approx. 3,5L
• Pipe coil area: Approx. 0,17m²

Evaporator:

• Tank: Approx. 3,5L
• Heater power: 4x 125W

Vapour generator:

• Refrigerant tank: Approx. 0,75L
• Water jacket: Approx. 9L
• Heater power: 2kW

Pump:

• Max. flow rate: Approx. 1,7L/min
• Max. head: Approx. 70mWS

Measuring ranges:

• Current: 0...2,5A
• Voltage: 0...230VAC
• Temperature: 10x -20...200°C
• Pressure: 2x 0...10bar / 2x -1...1,5bar
• Flow rate (cooling water): 6...75g/s

Additional Information:

• Item Code: DIFM240
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: by sea/air basis
• Delivery Time: 90-120 days
• Packaging Details: export worthy

Product Details:

A variable delivery fan supplies metered air to a pretreatment plenum chamber where it can be heated and humidified to a variable and measured extent. The air is next passed through a filter of the type used in commercial systems and then cooled by the evaporation of refrigerant in a built-in condensing refrigeration unit. Any moisture condensed from the air at this stage is collected in a measuring cylinder. The air then passes through a reheating chamber with a measurable heat input facility before discharge to atmosphere. The design of the unit is such as to ensure that all readings provided by the instrument relate to a proper homogeneous air flow. The refrigerant compressor is a single cylinder unit driven by an AC motor.

Special Features:

• Safety in use Interlocked controls make it impossible to generate steam from the humidifier or to run either the air flow preheater or the air reheater without first turning on the air flow blower. However, water in the steam generator can be heated to 90ºC before starting the blower, in order to save class time. The level of water in the steam generator is shown by a sight glass.
• The refrigerator condenser is adequate for use under tropical conditions, i.e. with cooling water up to 32ºC (90ºF approximately).
• Temperature readings from a total of 16 remote reading thermocouple instruments are provided by the Cussons multi-point, multi-range, thermometer. The temperature reading point operative at any one time is shown by an indicator light on the mimic diagram.

Other Details:

• Air Conditioning Unit comprising ducting system, variable delivery fan unit for air flow, inlet air heating and humidification, air cooling with condensate removal and measurement and air reheat all mounted on self-contained moveable stand. Instrumentation comprises multi-point wet and dry thermocouple systems with indicator tell tale, thermistor air flow meter, coolant flow meter, refrigerant flow meter, pressure gauges and mimic diagram. Complete and tested.

 

Additional Information:

• Item Code: DIRAC018
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: BY SEA/AIR BASIS
• Delivery Time: 90-120 DAYS
• Packaging Details: EXPORT WORTHY

Product Details:

Recirculating Air Conditioning Unit mounted on an anodized aluminum structure and panels of painted steel. The Recirculating Air Conditioning Unitincorporates wheels for its mobility.

Specifications:

• Main metallic elements of stainless steel
• Diagram in the front panel with similar distribution to the elements in the real unit.
• Tunnel made of stainless steel of 300 x 300 x 4000 mm., in which there has been installed 4 windows of 200 x 300 mm. to visualize the tunnel inside
• 2 Electrical heating elements, computer controlled: one of 2000W (pre-heater) at the inlet of the evaporator and other of 1000W (re-heater) at the outlet of the evaporator
• Axial fan, with speed control from computer, 2500 r.p.m., maximum flow: 2160 m3/h
• Evaporator
• Condenser unit, composed by
• Compressor, computer controlled, 1/2 Cv, 4.48 A
• Condenser, 1591BTU’s
• Air flow 900 m3/h.
• High-pressure cut-out, regulated at 14 bar.
• It switch off the compressor when the pressure reach the fix pressure.

Additional Information:

• Item Code: DITD0089
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: by sea/air basis
• Delivery Time: 90-120 days
• Packaging Details: Export worthy

Product Details:

A table top Refrigeration Trainer system is used to investigate energy balance at compressor, condenser and evaporator. Both the condenser and evaporator used water cooled heat exchangers. Instruments are provided for measurement of temperatures, pressures and cooling water flow rates. The Refrigeration Trainer system requires outside water supply.

Other Details:

• Familiarization with refrigeration cycle and components
• Energy balances at evaporator and condenser
• Overall heat transfer coefficients for evaporator and condenser
• Effects of load variation

Technical Data:

• Compressor: 0.37 kW
• Condenser and evaporator: Co-axial coil
• Water rotameters: 2 ea
• Power supply: 220V 1Ph 50Hz
• Other power supply is available on request

Measuring instruments:

• Pressure gauges
• Temperatures digital display

Additional Information:

• Item Code: DITD0029
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: by sea air basis
• Delivery Time: 90-120 days
• Packaging Details: Export worthy

Product Details:

The hermetically sealed refrigerant compressor incorporates a brushless three phase DC electric motor that is driven by a variable speed controller. Compressor speed and power supplied is displayed on the PC. The refrigerant exiting the compressor passes through a condenser, receiver, filter, variable area flow meter, expansion valve and evaporator before retuning to the inlet side of the compressor. The condenser and evaporator are brazed plate heat exchanger and utilize a large common reservoir of water to minimize changes in water temperature during operation.

Features:

• Complete refrigeration system enabling demonstration of the vapour compression refrigeration cycle.
• Fully instrumented to enable complete analysis of the processes involved and calculation of the changes in performance with operating conditions.
• Computer controlled system with automatic recording of process variables using an integral USB interface.
• Hermetically sealed rotary compressor driven by DC motor with three phase BLDC variable speed drive.
• Compressor speed under computer control with a wide range of operation from 2000 to 4400 RPM.
• Real time display of super heat calculations.
• Real time display of Coefficient of Performance.
• Energy transferred to the evaporator and from the condenser measured independently on the service side of the process.

Technical Details:

Additional Information:

• Item Code: DIRAC002
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: by sea/air basis
• Delivery Time: 90-120 days
• Packaging Details: Export worthy

Product Details:

Absorption refrigeration systems operate using thermal energy. They use the principle of liquids evaporating already at low temperatures when pressure is reduced. This basic principle is demonstrated in the experimental unit with the example of an ammonia-water solution with the ammonia acting as refrigerant. In the evaporator the liquid ammonia evaporates and withdraws heat from the environment. To keep the evaporation pressure low, the ammonia steam in the absorber is absorbed by the water. In the next step, ammonia is permanently removed from the high concentration ammonia solution to prevent the absorption process from being halted. For this purpose, the high concentration ammonia solution is heated in a generator until the ammonia evaporates again. In the final step, the ammonia steam is cooled in the condenser to the base level, condenses and is returned to the evaporator. The low concentration ammonia solution flows back to the absorber. To maintain the pressure differences in the system, hydrogen is used as an auxiliary gas.

Other Details:

• Operation of an absorption refrigeration system
• Main system components: evaporator, absorber, boiler with bubble pump, condenser
• Ammonia-water solution as working medium, hydrogen as auxiliary gas
• Boiler to separate ammonia
• Bubble pump for transportation in the circuit
• Adjustable electrical heater at the evaporator serves as cooling load
• Boiler Is Alternatively Heated By Electrical Heater Or Gas Burner
• Piezoelectric igniter for gas operation
• Digital displays for temperature and power

Additional Information:

• Item Code: DIRAC024
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: by sea / air basis
• Delivery Time: 90-120 days
• Packaging Details: Export worthy

Product Details:

The setup of represents a typical refrigeration circuit consisting of a hermetic compressor, condenser, evaporator and expansion element. Evaporator and condenser are designed as finned tube heat exchangers. The pipes of both heat exchangers are partially transparent to visualise the process of the phase transition during evaporation and condensing. Three capillary tubes of different lengths and a thermostatic expansion valve can be compared as expansion elements. The trainer is equipped with a receiver for refrigerant. Using the receiver, refrigerant can be added to or removed from the refrigeration circuit. This allows for the effects of overfilling or underfilling of the system to be examined.

Technical Data:

• Compressor
• power consumption: 213W at 7,2°/32°C
• refrigeration capacity: 372W at 7,2/32°C
• Condenser and evaporator with fan
• max. volumetric air flow rate condenser: 300m3/h
• max. volumetric air flow rate evaporator: 180m3/h
• Capillary tubes: 1,5m, 3m, 6m
• Receiver for refrigerant: 1,3L
• Measuring ranges
• pressure: -1…9bar / -1…24bar
• temperature: 4x -40…150°C, 1x -100…100°C
• flow rate: 2…18m3/h
• power consumption: 0…1000W

Additional Information:

• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: by sea air basis
• Delivery Time: 90-120 days
• Packaging Details: Export worthy

Product Details:

The unit enables the students to study the basic principals of Ice Plant Trainer within a short period. The test rig is designed for the study of thermodynamics of vapour Compression refrigeration cycle by way of demonstration and experimentation. It has a facility to measure various parameters for experimentation. Ice cans are kept in liquid tank, which is cooled by the refrigerant evaporator. As conventional ice plants take 12-24 hours to complete the cycle, this ice plant is specially designed to demonstrate process of ice formation to be complete within period of 4 hours and hence it is most suitable for laboratory use.

Technical Data:

• Compressor: Hermitically sealed compressor, reciprocating type. Emerson Copeland make
• Refrigerant: R-134A
• Condenser: Air cooled compatible to compressor
• Condenser Cooling Fan: Compatible capacity with permanent lubricated motor
• Evaporator: Brine tank, made of Stainless Steel, Insulated with ceramic wool/P.U.F
• Agitator: Compatible capacity, for mixing of solution in evaporator
• Expansion Device: Capillary Tube, Compatible capacity
• Pressure Gauges: 2 Nos. (For suction & discharge pressure)
• Safety Control: Overload and over current protectors for compressor and
• Time delay circuit, Low/high voltage auto-cut
• Temperature Sensor: RTD PT-100 Type
• Digital Voltmeter: 0-500 V
• Digital Ammeter: 0-19.99 Amp
• Temperature Measurement: Digital Temperature Indicator with multi-channel switch

Additional Information:

• Item Code: DEK196
• Pay Mode Terms: T/T (Bank Transfer)
• Port of Dispatch: By sea/air basis
• Delivery Time: 90-120 days
• Packaging Details: Export Worthy