The phrase "a related project" is correct and usable in written English.
You can use it when referring to a project that has a connection or relevance to another project or topic being discussed.
Example: "In addition to our current initiative, we are also exploring a related project that focuses on sustainability."
Alternatives: "an associated project" or "a connected project".
I am collaborating with Dr. Thomas Jessell at Columbia University on a related project.
In a related project, a series of brief recorded messages purported to express the viewpoints of the items on display.
Researchers are "a little bit loose" on that distinction, Stephen Wu, a researcher on a related project, told Pacific Standard magazine.
Mayor Bloomberg blamed the formidable lobbying efforts of Cablevision, which owns Madison Square Garden and opposes a related project, the stadium.
A few blocks away at Hansel and Gretel Picture Garden, Ms. Apfelbaum is exhibiting a related project titled "Flatland: Color Revolt".
In a related project, an anthropology doctoral student working for ReD mailed dozens of customers a disposable camera, asking them to photograph something that made them work out.
The SR-AHEC team expended $333,821 over two years on implementation, including the cost of a related projected promoting smoking cessation counselling among psychiatrists.
Once again we have a separate web site for a pretty related project.
People who want to expand features on the Chemotion ELN or start a new related project can comprehend the logics with a less steep learning curve.
GCHQ documents obtained from Mr. Snowden by The Guardian newspaper and shared with The Times reveal an intense focus over several years by British spies on the development of Muscular and a closely related project code-named Incenser.
A fifth related project is the Open Biomedical Annotator (OBA), from the National Center for Biomedical Ontology.
