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Fixed & Fluidized Bed Apparatus Manufacturer,Supplier and Exporter in India

Product Code : SCL-CELE-14168

Overview

The Fixed & Fluidized Bed Apparatus is an advanced laboratory trainer designed to study fluid flow through fixed and fluidized beds of solid particles using both air and water as the working fluids. It provides a visual and analytical understanding of pressure drop, bed porosity, and the transition from fixed to fluidized conditions, demonstrating both particulate and aggregative fluidization phenomena.

The setup consists of two transparent test columns — one for air flow and one for water flow — allowing direct observation of the behavior of granular materials under different fluidization regimes. Comprehensive instrumentation, including variable area flow meters, manometers, and pressure gauges, ensures accurate measurement and control of all parameters.

This apparatus is ideal for studying the fundamental principles of chemical reaction engineering, fluid mechanics, and process design, particularly in systems involving filtration beds, catalyst reactors, and fluidized bed operations.

Key Features

Dual transparent columns for simultaneous study with air and water.
Visualization of fixed and fluidized bed behavior using different particle sizes.
Comprehensive instrumentation panel with all necessary safety and control devices.
Observation of particulate and aggregative fluidization phenomena.
Anodized aluminum structure with bonded aluminum panels for durability and corrosion resistance.
Independent flow control systems for air and water, each with precision micro-valves and variable area flowmeters.
Detailed Operation & Maintenance Manual included for ease of use.

Technical Specifications

Component	Specification
Structure	Special anodized aluminum section frame with bonded aluminum board
Columns	2 transparent Plexiglas columns (air and water) with sintered steel supports; height: 550 mm; inner diameter: 44 mm
Bed Materials	2 beds of solid particles with different grain sizes
Water Tank	AISI 304 stainless steel, 6 L capacity
Water Flowmeter	Variable area flowmeter, range: 10 – 130 L/h, with control micro-valve
Air Flowmeter	Variable area flowmeter, range: 300 – 1500 N L/h, with control micro-valve
Water Pump	AISI 316 stainless steel, diaphragm type, Q_max = 1400 L/h, H_max = 2 bar
Air Compressor	Double-diaphragm type, Q_max = 37 L/min, P_max = 2 bar, with storage reservoir
Pressure Gauges	1 double-pipe manometer, range: 0 – 500 mm H?O; 1 U-tube manometer for air, range: 0 – 300 mm H?O
Safety Devices	Safety valve set at 0.5 bar
Overall Construction	Durable, corrosion-resistant design for long-term laboratory use

Experimental Capabilities

Measurement of pressure drop across fixed and fluidized beds using air and water.
Verification of the Ergun equation, Carman–Kozeny, and Burke–Plummer relationships.
Determination of minimum fluidization velocity and bed porosity.
Study of particulate and aggregative fluidization characteristics.
Collection and analysis of experimental data for real fluidized systems such as catalyst and filtration beds.

Educational Objectives

Understand the transition between fixed, expanding, and fluidized bed regimes.
Analyze the relationship between pressure drop and flow rate.
Determine void fraction and minimum fluidization velocity for different particle sizes.
Explore correlations between experimental and theoretical models of fluidization.
Demonstrate the influence of particle properties and fluid characteristics on bed behavior.

Required Services

Service	Specification
Electrical Supply	220–240 V AC, 16 A, Single Phase, Earthed
Water Supply	Tap water connection and drainage
Air Supply	Built-in diaphragm compressor