This paper discusses the issues of measuring formaldehyde on rich burn natural gas engines typically used in the gas compression industry in the United States. Recently, the EPA passed the final rule for reciprocating internal combustion engines to meet the national emission standards for hazardous air pollutants (i.e. RICE NESHAP rule) for both compression ignition (CI) and spark ignited (SI) ...

The use of natural gas in pure or a blended form with hydrogen and syngas spark ignition (SI) engines has received much attention recent years. They have higher diffusion coefficient laminar flame speed, small quenching distance wider flammability limit which compensate the demerits lean-burn combustion. Therefore, careful examination chemical kinetics combustion gaseous fuel blends is great im...

burns are injuries which may require long hospitalization and may result in important impairment and disability. burn injuries are still common especially in developing countries. assessment of the epidemiology of burns is very important for introduction of preventive methods. this study was conducted in yazd to assess and describe the epidemiology of burns including its main causes, and its de...

Dry-low emission (DLE) is one of the cleanest combustion types used in a gas turbine. DLE turbines have become popular due to their ability reduce emissions by operating lean-burn operation. However, this technology leads challenges that sometimes interrupt regular operations. Therefore, paper extensively reviews development turbine and its challenges. Numerous online publications from various ...

The Lean NOx Trap (LNT) is an aftertreatment device used to attain a reduction in nitrogen oxide emissions for Diesel and lean burn engines. The LNT is typically used as a storage device, capturing NOx during lean engine operation. The trap can be regenerated by controlling the exhaust air-fuel ratio to create a rich gas mixture. Under rich conditions, the stored NOx is released and catalytical...