Fin heat transfer studies in the cyclone separator of a circulating fluidized bed
Effects of fins on the average heat transfer coefficient inside the cyclone separators of a circulating fluidized bed (CFB) for different operating parameters, viz., solid circulation rate, gas superficial velocity, and pressure drop, has been investigated. The cyclone separator is an integral part of a CFB and is specially fabricated according to the high-efficiency Lapple design to accommodate two identical heat transfer probes in series. For the same operating conditions, the incorporation of fins results in a drop of heat transfer coefficient, but the total heat transfer increases with the increased surface area, more than compensating for this drop. It is also observed that the heat transfer coefficient increases linearly with the increase of solid circulation rate, gas superficial velocity as well as pressure drop. The collection efficiency of the cyclone separator is found to decrease with increase in solid circulation rate as well as with the pressure drop. It is also noted that the collection efficiency decreases with the incorporation of fins, but the collection efficiency is always found to be greater than 99.10%.
- OSTI ID:
- 6440207
- Journal Information:
- Heat Transfer Engineering, Journal Name: Heat Transfer Engineering Vol. 20:2; ISSN 0145-7632; ISSN HTEND2
- Country of Publication:
- United States
- Language:
- English
Similar Records
The compact circulating fluidized bed boiler with a finned tube impact separator and a uniflow square cyclone
An experimental study of the hydrodynamics and cluster formation in a circulating fluidized bed. Topical report, January 1, 1991--June 30, 1992
Related Subjects
200101 -- Fossil-Fueled Power Plants-- Cooling & Heat Transfer Equipment & Systems
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
AUGMENTATION
BOILERS
CIRCULATING SYSTEMS
CONCENTRATORS
CYCLONE SEPARATORS
ENERGY TRANSFER
EQUIPMENT
FINS
FLUIDIZED BED BOILERS
HEAT EXCHANGERS
HEAT TRANSFER
IN-VESSEL HEAT EXCHANGERS
INERTIAL SEPARATORS
POLLUTION CONTROL EQUIPMENT
SEPARATION EQUIPMENT