Thermal Conductivity of Insulating Slab | ThermoFlux-2909
The Thermal Conductivity of Insulating Slab ThermoFlux-2909 determines thermal conductivity of insulating materials in slab form using dual heaters with unidirectional heat flow. Features central main heater and ring guard heater sandwiched between identical specimens, cooling plates on both sides, ceramic wool insulation, and chamber housing. Requires 5 liters per minute water supply, drain connection, and single-phase 220 V AC, 2 ampere electrical supply. Ideal for thermal property characterization of insulating slabs.
The Thermal Conductivity of Insulating Slab ThermoFlux-2909 is designed to determine thermal conductivities of insulating materials in slab form under controlled laboratory conditions. This apparatus uses a dual-heater system with cooling plates to establish precise temperature gradients across insulating slab specimens, enabling accurate thermal property measurement.
Product Overview
The Thermal Conductivity of Insulating Slab ThermoFlux-2909 features a central main heater and ring guard heater sandwiched between two identical insulating slab specimens. Cooling plates are positioned on either side of the specimen assembly. The specimens are clamped between the heaters to ensure unidirectional heat flow through the insulating slab, eliminating lateral heat loss. The entire assembly is housed in a chamber and surrounded by ceramic wool insulation to minimize external heat loss. The ring guard heater maintains temperature balance at the specimen edges, ensuring accurate one-dimensional heat conduction measurement through the insulating slab. Water cooling at approximately 5 liters per minute circulates through the cooling plates to maintain stable boundary conditions. The apparatus operates on single-phase, 220 V AC supply at 2 amperes.
Thermal Conductivity of Insulating Slab ThermoFlux-2909 — Technical Specifications
| Specification | Details |
|---|---|
| Specimen Type | Two identical insulating slabs |
| Central Heater | Main heating element for primary heat input |
| Ring Guard Heater | Maintains edge temperature balance |
| Cooling System | Cooling plates on both sides of specimen |
| Clamping Mechanism | Clamps specimens between heaters for unidirectional heat flow |
| Insulation | Ceramic wool around entire assembly |
| Chamber Housing | Contains heater and specimen assembly |
| Water Supply | Approximately 5 liters per minute |
| Drain | Required for cooling water discharge |
| Power Supply | Single phase, 220 V AC, 2 amperes |
| Apparatus Support | Table required for set-up support |
Technical Data
Heater Assembly
- Central heater: Main heating element for primary thermal input
- Ring guard heater: Maintains uniform temperature at specimen periphery
- Configuration: Sandwiched between insulating slab specimens
- Function: Establishes temperature gradient across insulating slab
Specimen Assembly
- Specimen type: Two identical insulating slabs
- Mounting: Clamped between central and ring guard heaters
- Heat flow: Unidirectional through insulating slab
- Contact pressure: Maintained by clamping mechanism
Cooling System
- Cooling plates: Positioned on both sides of specimen assembly
- Water flow: Approximately 5 liters per minute
- Function: Maintains stable cold-end temperature for insulating slab testing
Insulation and Housing
- Chamber: Contains heater and specimen assembly
- Insulation material: Ceramic wool
- Coverage: Surrounds entire set-up to minimize external heat loss
- Purpose: Ensures accurate thermal conductivity measurement of insulating slab
Key Features
- Dual-heater system: Central main heater and ring guard heater ensure uniform heat application across the insulating slab specimen
- Thermal Conductivity of Insulating Slab testing: Two identical specimens clamped between heaters for standardized measurement of insulating materials
- Unidirectional heat flow: Clamping mechanism ensures heat flows only through the insulating slab, eliminating lateral pathways
- Ring guard heater: Maintains equal temperature at specimen edges, preventing edge effects that could distort thermal conductivity of insulating slab measurements
- Cooling plates on both sides: Dissipate heat from specimen boundaries, maintaining precise temperature gradient
- Ceramic wool insulation: Surrounds entire assembly to prevent external heat loss and improve measurement accuracy
- Chamber housing: Protects apparatus and contains ceramic wool insulation for thermal control
- Water-cooled heat dissipation: 5 liters per minute cooling supply maintains stable boundary conditions
- Specimen clamping: Ensures perfect contact between heater and insulating slab for consistent thermal conduction
Experiments
- Determination of thermal conductivity of insulating materials in slab form
- Measurement of thermal conductivity variation with temperature
- Analysis of steady-state heat conduction through insulating slabs
- Study of effect of temperature on insulating material properties
- Verification of thermal conductivity values at different operating conditions
- Comparison of thermal properties across different insulating slab materials
- Analysis of unidirectional heat flow through insulating slab specimens
Construction and Design
The Thermal Conductivity of Insulating Slab ThermoFlux-2909 consists of a central main heater and ring guard heater positioned with two identical insulating slab specimens clamped between them. Cooling plates are mounted on either side of the specimen assembly. The specimens are held in place by a clamping mechanism that applies uniform pressure, ensuring unidirectional heat flow through the insulating slab. The entire heater and specimen assembly is enclosed in a chamber and surrounded by ceramic wool insulation to minimize heat loss to the surroundings. Water cooling circulates through the cooling plates at approximately 5 liters per minute to maintain stable temperature at the cold boundary of the insulating slab. The apparatus is mounted on a support table for secure placement and operates on single-phase, 220 V AC power at 2 amperes.
Scope of Delivery
- Central main heater assembly
- Ring guard heater assembly
- Cooling plates (both sides)
- Specimen clamping mechanism
- Insulating slab specimen holders
- Chamber housing
- Ceramic wool insulation
- Water inlet and outlet connections
- Drain connection
- Power supply cord
- Support table or mounting base
- Installation and operation manual
Required for Operation
- Water supply at approximately 5 liters per minute at constant pressure
- Drain connection for cooling water discharge
- Single-phase electrical supply: 220 V AC, 2 amperes
- Level, stable table or floor space for apparatus mounting
- Ambient temperature controlled environment for accurate measurement
Optional Accessories
- Software for data acquisition on LabView
- HMI touchscreen panel for easy usage and automated data logging
- Additional insulating slab specimen sets for testing different materials
Q: How does the Thermal Conductivity of Insulating Slab ThermoFlux-2909 ensure unidirectional heat flow?
A: The insulating slab specimens are clamped between the central heater and ring guard heater, and the entire assembly is surrounded by ceramic wool insulation. This configuration forces heat to flow only through the insulating slab perpendicular to its surface, eliminating lateral heat loss.
Q: What is the purpose of the ring guard heater?
A: The ring guard heater maintains the same temperature as the central heater at the specimen edges. This prevents temperature gradients at the periphery of the insulating slab, ensuring accurate one-dimensional heat conduction measurement.
Q: Why is ceramic wool insulation necessary?
A: Ceramic wool insulation surrounds the entire apparatus to prevent heat loss to the surroundings. This maintains the temperature gradient across the insulating slab and improves the accuracy of thermal conductivity measurement.
Q: What cooling water flow rate is required?
A: Approximately 5 liters per minute water supply is required to circulate through the cooling plates, maintaining stable boundary conditions for the insulating slab specimen testing.
Q: Can thermal conductivity of different insulating materials be measured?
A: Yes, the apparatus is designed to measure thermal conductivity of various insulating materials in slab form. Different slab specimens can be tested by replacing the specimens and conducting new experiments.
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