The diesel in a serial hybrid never powers anything except the genset. That battery bank powers an electric-motor propulsion system, giving the low-end torque that makes this the system of choice for “clean” city buses. The second system is a serial hybrid, which has a smaller diesel engine that functions exclusively as a genset-it only runs when the power supply in a battery bank drops below a certain level. “If you have a diesel engine that is not working for some reason, you can run one engine and charge the battery, and in the meantime use the power for the other electric motor to operate the boat with two propellers but with one diesel engine on.” Aside from redundancy, other benefits include the ability to run silently and without diesel fumes. “Reliability is very important,” says Andrea Frabetti, product development director for Ferretti Group’s Advanced Yacht Technology. When the diesel engine runs, it can charge the batteries, but you can also make way by shutting down the diesel and running the electric motor off the battery banks. The basic idea is that you have a diesel engine that drives the propshaft but also has an electric motor that can turn it. Boats equipped with systems from Austria-based Steyr Motors are also parallel hybrids and so are some other custom vessels. A parallel system is currently available in the Mochi Craft LR23 ( and has been for more than four years now. More specifically, there are two types available to boat owners: parallel and serial (see simple diagrams of each system on page 47). Another factor that carries over from the automotive market lays in the selling of the technology: The word “hybrid” is a very nonspecific term, and there’s more than one type of system to which it is applied. Just as in cars, one of the challenges is the complexity of the systems and applying them efficiently to the way prospective owners want to use them-all the more daunting considering the comparative size of the marine market. Yet companies are still trying to make hybrid propulsion work for boats with more conventional usage profiles. The builder touts quiet operation and the ability to stay for months on the hook with only solar power to run accessories.
On the flipside, the Island Pilot Hybrid DSe has been racking up awards with efficient systems coupled to a photovoltaic solar-panel array and juice-generating windmills. “We will never attempt that again during my tenure at PAE,” he said in a 2009 interview on the Nordhavn Web site. Within the last eight years, Nordhavn built two diesel-electric boats that were classified as “complete failures” by company president Dan Streech. And regeneration never happens on boats, they don’t go up and down hills and they don’t brake, so you get none of the gains.” You can imagine some scenario where a boat that’s designed to run at 12 knots is running at two knots for long periods of time maybe would be applicable for a situation like that. Boats don’t really do any of those things ever. And depending on the type of hybrid system they have, they virtually shut down or truly shut down the internal combustion engine when they’re running incredibly inefficiently-there’s a tremendous saving there.
“And land vehicles spend an awful lot of time in traffic, at idle speed, just creeping along at two or three miles an hour. The problem may also be with the file itself if the above steps don't work.“Land vehicles get regeneration when they brake and coast downhill,” says Dave Gerr, naval architect, founder of Gerr Marine and director of the Westlawn Institute of Marine Technology. Check for the following problems with the SDLP file
Simplediagrams serial update#
In this case, use the McQuillen Interactive website or update the program from the application. If, however, after binding SimpleDiagrams with SimpleDiagrams Plugin Format there were still problems, you should update the program to the latest version.
Update SimpleDiagrams to the latest version " box, this will allow you to permanently associate the SDLP file with the SimpleDiagrams application. However, it is important to check the "Always use the selected program.
Simplediagrams serial software#
If there is no software on the list, simply select "Browse" and manually select the directory where the application is installed. Using the "Change" button we can set the program to handle this type. Information about the file and the program that the file is associated with are available here. It is most convenient to call the context menu with the right mouse button and select Properties. However, it may happen that the application itself does not cause the SDLP file to open in the SimpleDiagrams application, but you can set it manually. Create association of SimpleDiagrams with SDLP files
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