Technologies and Materials for Recovering Waste Heat in Harsh Environments

Nimbalkar, Sachin U.¹  Thekdi, Arvind²  Rogers, Benjamin M.¹  Kafka, Orion L.³ 

[1] Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States);E3M, Inc. North Potomac, MD (United States);Oak R

关键词: Waste Heat Recovery;    EAF;    High Temperature Materials;   

DOI  :  10.2172/1224744
RP-ID  :  ORNL/TM--2014/619
PID  :  OSTI ID: 1224744
Others  :  Other: ED2701000
Others  :  CEED063

美国|英语

来源: SciTech Connect

【 摘 要 】

A large amount (7,204 TBtu/year) of energy is used for process heating by the manufacturing sector in the United States (US). This energy is in the form of fuels mostly natural gas with some coal or other fuels and steam generated using fuels such as natural gas, coal, by-product fuels, and some others. Combustion of these fuels results in the release of heat, which is used for process heating, and in the generation of combustion products that are discharged from the heating system. All major US industries use heating equipment such as furnaces, ovens, heaters, kilns, and dryers. The hot exhaust gases from this equipment, after providing the necessary process heat, are discharged into the atmosphere through stacks. This report deals with identification of industries and industrial heating processes in which the exhaust gases are at high temperature (>1200 F), contain all of the types of reactive constituents described, and can be considered as harsh or contaminated. It also identifies specific issues related to WHR for each of these processes or waste heat streams.