Perfect Gas Law Apparatus ThermoFlux – 7077
Perfect Gas Law Apparatus ThermoFlux – 7077 is a bench-top laboratory trainer for experimental investigation of the perfect gas law apparatus principles, covering the first and second laws of thermodynamics and the pressure, volume, and temperature relationships for air.
The unit consists of two transparent impact-resistant plastic vessels (large: 200 mm diameter, 18.5 litres; small: 150 mm diameter, 10.5 litres) connected by a large-bore pipe and valve with an integral air pump. The pump pressurizes one vessel while evacuating the other. Three operating configurations are available: isolation, venting to/from atmosphere, and pressurized-to-evacuated vessel transfer.
Fast-response thermocouples in each vessel cover -100 to 400°C. Pressure gauges on each vessel cover -1 to 4 bar. Pressure relief valves and safety switches protect against over-pressurization. A control box digitally displays vessel temperatures. Optional DAQ software in the National Instruments LabVIEW environment supports continuous PC monitoring on any Windows system.
Supplied by SCIENTICO India with an instructional manual. Optional accessories include a computer-controlled air pump and full DAQ software with electronic sensors.
The Perfect Gas Law Apparatus ThermoFlux – 7077 is a small-scale bench-top unit designed for experimental investigation of the perfect gas law apparatus principles, covering the first law of thermodynamics and the pressure, volume, and temperature relationships for air. Two transparent vessels connected by a large-bore pipe and valve, together with an integral air pump, enable a range of gas expansion and compression experiments.
Air is used as the test gas. The pump can pressurize one vessel and evacuate the other simultaneously. Additional valves allow the vessels to be operated singly or in combination, including venting to atmosphere and controlled transfer between a pressurized vessel and an evacuated vessel.
Product Overview
The Perfect Gas Law Apparatus ThermoFlux – 7077 consists of two transparent vessels: a large vessel with an approximate volume of 18.5 litres and a smaller vessel with an approximate volume of 10.5 litres. The vessels are connected by a large-bore pipe and valve with an integral air pump. The pump pressurizes one vessel while evacuating the other.
Additional valves provide three operating configurations: vessels in isolation, venting to or from atmosphere, and a combined arrangement where the pressurized vessel vents into the evacuated vessel. This range of configurations enables direct observation of perfect gas law apparatus behaviour including transient pressure and temperature responses.
Fast-response thermocouple sensors are located in each vessel to record air temperatures. Individual pressure transducers record chamber pressures. Two pressure gauges, one per vessel, cover a range of -1 to 4 bar. Two temperature sensors, one per vessel, cover a range of -100 to 400°C. Pressure relief valves prevent over-pressurization in the pressurized vessel. Pressure switches limit operating pressures to safe levels.
The vessels and interconnecting pipework are constructed from impact-resistant plastic. A control box digitally displays air temperatures in both vessels. The unit supports optional continuous PC monitoring of pressure and temperature changes. The air pump is available in manual or optional computer-controlled versions.
| Parameter | Value |
|---|---|
| Apparatus Type | Small-scale bench-top unit, two transparent vessels with integral air pump |
| Test Gas | Air |
| Large Vessel Diameter | 200 mm |
| Large Vessel Volume | 18.5 litres (approximate) |
| Small Vessel Diameter | 150 mm |
| Small Vessel Volume | 10.5 litres (approximate) |
| Vessel Connection | Large-bore pipe and valve |
| Air Pump | Integral; manual or optional computer-controlled |
| Pump Function | Pressurizes one vessel and evacuates the other simultaneously |
| Operating Configurations | Isolation, venting to/from atmosphere, pressurized-to-evacuated transfer |
| Temperature Sensors | 2 x fast-response thermocouples, one per vessel; range: -100 to 400°C |
| Pressure Transducers | 2 x individual pressure transducers, one per vessel (when DAQ selected) |
| Pressure Gauges | 2 x gauges, one per vessel; range: -1 to 4 bar |
| Pressure Relief Valves | Fitted to prevent over-pressurization in the pressurized vessel |
| Pressure Safety Switches | Limit operating pressures to safe levels |
| Vessel and Pipework Material | Impact-resistant plastic |
| Control Box | Digital display of air temperatures in both vessels |
| PC Monitoring | Optional continuous monitoring of pressure and temperature |
| Software | Optional DAQ software (National Instruments LabVIEW environment) |
| Software Compatibility | Any Windows environment |
Technical Data
Large Tank
| Parameter | Value |
|---|---|
| Diameter | 200 mm |
| Volume | 18.5 litres |
Small Tank
| Parameter | Value |
|---|---|
| Diameter | 150 mm |
| Volume | 10.5 litres |
Sensors and Gauges
| Parameter | Value |
|---|---|
| Temperature Sensors | 2 x fast-response thermocouples, one per vessel |
| Temperature Range | -100 to 400°C |
| Pressure Transducers | 2 x individual, one per vessel (DAQ option) |
| Pressure Gauges | 2 x gauges, one per vessel |
| Pressure Gauge Range | -1 to 4 bar |
Key Features
- Apparatus Type: perfect gas law apparatus, bench-top, two transparent vessels
- Test Gas: air
- Large Vessel: 200 mm diameter, 18.5 litres approximate volume
- Small Vessel: 150 mm diameter, 10.5 litres approximate volume
- Vessel Connection: large-bore pipe and valve with integral air pump
- Air Pump: integral, manual or optional computer-controlled; pressurizes one vessel and evacuates the other
- Operating Configurations: isolation, venting to/from atmosphere, pressurized-to-evacuated vessel transfer
- Temperature Sensors: 2 x fast-response thermocouples, one per vessel, range: -100 to 400°C
- Pressure Transducers: 2 x individual, one per vessel (when DAQ selected)
- Pressure Gauges: 2 x gauges, one per vessel, range: -1 to 4 bar
- Pressure Relief Valves: fitted to prevent over-pressurization
- Pressure Safety Switches: limit operating pressures to safe levels
- Vessel and Pipework Material: impact-resistant plastic
- Control Box: digital display of air temperatures in both vessels
- PC Monitoring: optional continuous monitoring of pressure and temperature changes
- Software: optional DAQ software, National Instruments LabVIEW environment, Windows compatible
Experiments
- Investigation of the First Law of Thermodynamics
- The Second Law of Thermodynamics and its corollaries
- Observation of the pressure, volume, and temperature relationship for air
- Observation of the transient responses to different rates of change in a process
Construction and Design
The Perfect Gas Law Apparatus ThermoFlux – 7077 is a bench-top unit built around two transparent impact-resistant plastic vessels: a large vessel of 200 mm diameter and approximately 18.5 litres volume, and a smaller vessel of 150 mm diameter and approximately 10.5 litres volume.
The vessels are connected by a large-bore pipe and valve. An integral air pump serves both vessels simultaneously, pressurizing one while evacuating the other. Additional valves provide three distinct operating configurations: vessels in isolation, venting to or from atmosphere, and controlled transfer from the pressurized vessel to the evacuated vessel.
Fast-response thermocouple sensors in each vessel record air temperatures across the range -100 to 400°C. Individual pressure transducers record chamber pressures when the DAQ option is selected. Two pressure gauges covering -1 to 4 bar provide local pressure indication on each vessel. Pressure relief valves protect against over-pressurization, and pressure switches limit operating pressures to safe levels. The transparent vessel construction allows direct visual observation of the perfect gas law apparatus processes in real time.
A control box digitally displays air temperatures from both vessels. All sensor signals are available for optional continuous PC monitoring of pressure and temperature via the LabVIEW DAQ software package. The air pump can be operated manually or, on the optional computer-controlled version, via PC.
Software (Optional): ThermoFlux – 7077
DAQ software is specially designed in the National Instruments LabVIEW environment to measure and calculate results from the apparatus. When software is used, a set of electronic sensors is included. The software is compatible with any Windows environment.
Scope of Delivery
- 1 experimental unit
- 1 instructional manual
Optional Accessories
- Computer-controlled air pump
- DAQ software package (ThermoFlux – 7077, National Instruments LabVIEW environment, Windows compatible), supplied with electronic sensors
Q: What gas law experiments can be performed with the Perfect Gas Law Apparatus ThermoFlux – 7077?
A: The unit supports investigation of the First Law of Thermodynamics, the Second Law of Thermodynamics and its corollaries, observation of the pressure-volume-temperature relationship for air, and observation of transient responses to different rates of change in a process.
Q: What are the volumes of the two vessels in this perfect gas law apparatus?
A: The large vessel has a diameter of 200 mm and an approximate volume of 18.5 litres. The small vessel has a diameter of 150 mm and an approximate volume of 10.5 litres.
Q: What operating configurations are possible with the two vessels?
A: The vessels can be operated in three configurations: in isolation, venting to or from atmosphere, and in combination where the pressurized vessel vents into the evacuated vessel. Additional valves control each configuration.
Q: What safety features are included in the ThermoFlux – 7077?
A: Pressure relief valves prevent over-pressurization in the pressurized vessel. Pressure switches limit the operating pressures to safe levels. The vessels and interconnecting pipework are constructed from impact-resistant plastic.
Q: Is PC-based data acquisition available for this unit?
A: Yes, as an optional feature. All sensor signals can be routed to a PC for continuous monitoring of pressure and temperature changes. The optional DAQ software is developed in the National Instruments LabVIEW environment and is compatible with any Windows system. The computer-controlled air pump is also available as an optional accessory.
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