Industrial compact ceramic finned-plate recuperator. Final report, August 1982-March 1987

Technical Report · Tue Sep 01 04:00:00 EDT 1987

OSTI ID:5935700

Coombs, M G; Strumpf, H; Kotchick, D; Stillwagon, T

The report covers a multiyear program for the development of a ceramic finned-plate recuperator. The recuperator is designed to operate in a variety of industrial flue-gas streams with exhaust temperatures of up to 2500F, delivering preheated combustion air at temperatures of up to 2000F. Under anticipated conditions, thermal-efficiency improvements of up to 50% can be achieved, compared to unrecuperated furnaces. A reference system recuperator was designed to meet the requirements of an industrial host site. A scaled-down prototype version of the reference design recuperator was designed to serve as a direct replacement for the GRI tubular ceramic prototpype recuperator in the AiResearch laboratory test facility. The finned-plate recuperator design consists of an assembly of individual ceramic plates with fin patterns formed on both sides of the plates. When assembled, these fin patterns form the alternate air and gas passages in the recuperator. Silicon carbide finned plates were manufactured to demonstrate fabrication feasibility. Following an unacceptable evaluation of the fabricated plates, the program was redirected to evaluate alternative fabrication techniques. The recuperator was redesigned to a new set of system requirements. Silicon nitride finned plates were designed and successfully manufactured for the redesigned recuperator.

• Research Organization: AiResearch Mfg. Co., Los Angeles, CA (USA)
• OSTI ID: 5935700
• Report Number(s): PB-89-148837/XAB; REPT-87-60756
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
CARBIDES
CARBON COMPOUNDS
CERAMICS
DESIGN
DOCUMENT TYPES
ENERGY
EQUIPMENT
FINS
HEAT
HEAT EXCHANGERS
HEAT RECOVERY EQUIPMENT
INDUSTRIAL PLANTS
NITRIDES
NITROGEN COMPOUNDS
PNICTIDES
PROCESS HEAT
PROGRESS REPORT
SILICON CARBIDES
SILICON COMPOUNDS
SILICON NITRIDES
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION