June 2019 | AIChE

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June 2019

Combustion in fired heaters and boilers is typically based on either volumetric flow control or pressure control of the fuel gas feeding the burner. Using mass flow control could help lower energy costs and emissions.
July
2019
State-based control embeds proper operational discipline into a process automation and control system to avoid alarm flooding and keep plants safe.
July
2019
Vapor intrusion (VI) occurs when contaminants in soil or groundwater drift into a building or facility through cracks and seams in the foundation. This article describes steps to mitigate VI at your facility.
July
2019

Researchers Target Blood Stem Cells with Gold Nanoparticles

July
2019
Throughout its lifetime, the human body must continually replace its blood cells as they circulate and are recycled. Every second, hematopoietic stem and progenitor cells (HSPCs) in our bone marrow produce two million new blood cells. Humans are born with very few HSPCs that replenish themselves through self-renewal. HSPCs can be transplanted from a donor to a sick patient to treat blood cancers such as leukemia and lymphoma.

Killing Bacteria with Electric Bandages

July
2019
Researchers at Indiana Univ. (IU) have developed a bandage that uses electricity to treat biofilm infections in burns and traumatic or surgical wounds.

Electricity May be Produced by Body Heat

July
2019
Researchers at the Univ. of Maryland (UMD) have developed a device that can convert low-grade heat, such as body heat, into electricity. The device owes its unique structure to an unexpected, natural source — wood.

AI Gives the Fragrance Industry a New Nose

July
2019
In recent years, artificial intelligence (AI) has found its way into the fragrance industry. The union sometimes seems at odds with the world of scent, which is often tied to human emotion. Yet, as the industry continues to grow, fragrance scientists are increasingly incorporating novel AI technology, while striving to maintain scent design as an art form.
July
2019
Process engineers face many technical challenges and, while we can solve some of these problems, others must simply be managed safely. My first technical project was to determine a solution to a liquified natural gas (LNG) plant’s slop-oil disposal...
July
2019
Our world — everyone, every species, and everything in it — is being affected by climate change. As the changes become more significant, we will have to adapt. Chemical engineers are in a special position to explain what is happening with our...
July
2019