Have you checked out the BayesiaLab Library of Tutorials lately? Here, you can find numerous case studies about real-world applications of Bayesian Networks and BayesiaLab.
These are not your run-of-the-mill white papers with lots of promotional hyperbole. Rather, our tutorials are highly-detailed monographs that can help you build or machine-learn Bayesian Networks with BayesiaLab. Many of them include sample datasets and network files, which you can immediately use to experiment with Bayesian Networks on your computer.
The topics discussed in these tutorials cover a wide array of problem domains, ranging from bioinformatics to vehicle safety. Putting all of them together, you have a rather substantial 650-page handbook for applied researchers.