Lee’s and Charlton’s Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-AP-11129
The Lee’s and Charlton’s Apparatus is a precision instrument
engineered for determining the thermal conductivity (\lambda) of non-metallic
thin-layer materials. Designed for University physics laboratories and advanced
engineering curricula, it utilizes a steady-state heat transfer method between
a steam-jacketed chest and a calibrated brass receiving slab. It complies with
international laboratory standards for thermodynamic experimentation.
Technical Specifications
|
Tender Specification |
OEM Technical Detail |
|
Material Grade |
High-Thermal-Conductivity Machined Brass |
|
Base Slab Dimensions |
110 mm Diameter x 10.5 mm Thickness |
|
Steam Chest Depth |
45 mm (Hollow Brass Cylinder) |
|
Interface Geometry |
Flat-lapped mating surfaces for minimized contact
resistance |
|
Thermal Sensing |
Radial-drilled thermometer ports in both slab and chest |
|
Suspension System |
Tri-point eyelet configuration with stout annular support
ring |
|
Mounting |
Heavy-duty cast iron retort stands with stabilization base |
Key Pedagogical Outcomes
- Tri-Point
String Suspension: Isolates the receiving brass slab from conductive
heat sinks, ensuring thermal loss occurs purely through convection and
radiation, essential for accurate cooling curve calculations.
- Machined
Radial Thermometer Ports: Allows for precise core temperature
monitoring of both the heat source and receiver, supporting Bloom's
Taxonomy "Analysis" of steady-state thermal gradients.
- Integrated
Steam Inlet/Outlet Tubes: Maintains a constant high-temperature
boundary condition (100^\circ\text{C}), facilitating repeatable
experimental parameters across multiple student lab rotations.
- Large
Surface-to-Thickness Ratio: Optimized for the study of poor conductors
(glass, ebonite, cardboard), enabling students to verify the Law of Heat
Conduction in materials with high thermal resistance.
International Logistics & Compliance
Science Lab Export implements rigorous protocols for
international procurement cycles. Packaging consists of export-grade seaworthy
crating featuring high-density foam inserts to protect machined brass surfaces.
Documentation includes the Manufacturer’s Authorization Form (MAF), IQ/OQ/PQ
Certification protocols, and English-language Technical Manuals. The apparatus
is tropicalized, featuring oxidation-resistant brass alloys and powder-coated
stands tested for structural integrity in environments up to 45°C and 90%
humidity.
