His Royal Highness Crown Prince Frederik of Denmark officially opened MAN B&W Diesel’s new five-star attraction, DieselHouse, a technical and cultural experience center dedicated to the diesel engine technology. On May 18, His Royal Highness Crown Prince Frederik of Denmark officially opened MAN B&W Diesel’s new five-star attraction, DieselHouse, a technical and cultural experience center dedicated to the diesel engine technology. The opening ceremony was witnessed by Flemming Hansen, Danish Minister for Tranport and Energy, as well as high-ranking representatives from MAN B&W Diesel’s licensees. DieselHouse is situated on the site of the H.C.