Changes Of State In The Refrigeration Circuit

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Changes Of State In The Refrigeration Circuit Specification

Feature
Highly Efficient

Dimension (L*W*H)
1200x500x900 Millimeter (mm)

Warranty
1 year

Accuracy
100 %

Weight
110 approx. Kilograms (kg)

Type
CHANGES OF STATE IN THE REFRIGERATION CIRCUIT

Usage
Laboratory

Display Type
Analog

About Changes Of State In The Refrigeration Circuit

CHANGES OF STATE IN THE REFRIGERATION CIRCUIT

Compression refrigeration system a refrigerant flows through the refrigeration circuit and is subject to different changes of state. Here, the physical effect is used that during the transition of the refrigerant from a liquid to a gaseous state energy is required which is removed from the environment (evaporation enthalpy).

The experimental unit represents a typical refrigeration circuit consisting of a hermetic piston compressor, condenser, expansion valve and evaporator. The evaporator and condenser are transparent to provide good monitoring of the phase transition process during evaporation and condensation. The operation of the float valve as expansion valve is also easy to observe. Before the entry into the evaporator the aggregate state of the refrigerant can be monitored at a sight glass. A water circuit cools the condenser or supplies the cooling load for the evaporator. Cold and hot water and refrigerant flows are adjustable. The low pressure level of the refrigerant used permits the use of an evaporator and condenser out of glass. The refrigerant is CFC-free and environmentally friendly.

Temperatures and pressures are recorded and displayed. The key points of the cyclic process can be read and entered into a log p-h diagram. The power of the compressor and flow rates of the water flows and the refrigerant are also indicated.

The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. The unit shall perform the following experiments and investigations:

Learning Objectives / Experiments

Design and operation of a compression
Refrigeration system
Observe the evaporation and condensation of the refrigerant
Represent and understand the refrigeration cycle in the log p-h diagram
Energy balances
Calculation of the coefficient of performance

Specification

Demonstration of the processes in a refrigeration circuit
For better process monitoring the evaporator and condenser are of transparent design
Evaporator and condenser with pipe coil
Expansion valve in the shape of a float valve
Pressure switch to protect the compressor
Temperature sensor, power meter, manometer in the refrigeration circuit, flow meter for hot and cold water and refrigerant
Safety valves at the evaporator and condenser
Refrigerant Solkatherm SES36, CFC-free

Technical Data

Hermetic piston compressor
Capacity: 18,3cm³
Evaporator capacity: approx. 2800mL
Condenser capacity: approx. 2800mL

Measuring ranges

Temperature: 8x -20...200°C
Pressure: 2x -1...1,5bar
Flow rate (water): 2x 0...48L/h
Flow rate (refrigerant): 1x 0...700L/h
Power: 0...1200W

Dimensions and Weight

LxWxH: 1200x500x900mm
Weight: approx. 110kg

Optimal Laboratory Performance

Designed exclusively for laboratory applications, this refrigeration circuit model allows users to observe and measure the changes of state with high precision. Its analog display offers clear readings, enabling students and researchers to analyze thermodynamic processes in real time, thereby facilitating a comprehensive understanding of refrigeration principles.

Exceptional Accuracy and Reliability

Delivering 100% measurement accuracy, this apparatus stands out for its reliability even during repeated experiments. The robust build quality, weighing about 110 kg, ensures a secure and stable operation, while the 1-year warranty provides added confidence. Whether for teaching or research, consistency and dependable performance are guaranteed.

FAQs of Changes Of State In The Refrigeration Circuit:

Q: How does the CHANGES OF STATE IN THE REFRIGERATION CIRCUIT apparatus operate in a laboratory setting?

A: The apparatus works by simulating refrigeration circuits, allowing users to closely observe phase transitions such as evaporation and condensation. The analog display provides real-time data, which enhances experimental learning and analysis for students and professionals.

Q: What benefits does this refrigeration circuit equipment offer for laboratory users?

A: Laboratory users benefit from the equipments high efficiency and precise accuracy. It helps in understanding thermodynamic concepts effectively, thanks to its hands-on demonstration capability and reliable analog readings. Its robust construction also ensures safe and stable use.

Q: When is this equipment typically used in laboratories?

A: This apparatus is primarily used during experiments and training sessions focused on refrigeration cycles and thermodynamics. It is an ideal teaching tool for experiments that require close monitoring of changes in state within refrigeration processes.

Q: Where is the CHANGES OF STATE IN THE REFRIGERATION CIRCUIT apparatus manufactured and supplied from?

A: This equipment is manufactured and supplied by a reputed exporter, manufacturer, and supplier based in India. It is available for laboratory procurement domestically and internationally.

Q: What is the process for demonstrating changes of state using this apparatus?

A: Users fill the system with the working fluid and observe the changes of state as it cycles through the refrigeration process. The analog display shows critical temperature and pressure data throughout the experiment, helping visualize and quantify each phase change.

Q: How does the analog display enhance the accuracy of experimental results?

A: The analog display provides immediate feedback with 100% accuracy, allowing users to record and analyze state changes precisely. This reduces the risk of error and improves data reliability, which is essential for educational and research outcomes.

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