Q:I know they are more expensive.

Yes. But they also burn much hotter in the SOFC.

Q:I just purchased a KOHLER generator 500 KVA would it be safe to run at 10 % load for 6-8 hours

500 kva is a big generator and I am guessing it is diesel. It is safe to run at 10% load however it is not good for the engine itself to make a practice of that. It can lead to lower cylinder temperatures and incomplete combustion over time. It is always better to run at or as close to max load as you can.

Q:can DG's be used as a backup for single phase and three phase ac?

Yes but they need to match the power source they are replacing.

Q:I have a (2306A-E14TAG3) PERKINS diesel engine electric generator, every two hours it turns off by itself. The generator room is well ventilated, opened from all sides, while the exhaust is free for atmosphere without any extensions from the muffler.- 66% used as part load.- Note that this generator is a new generator. ambient temperature is almost 30 degrees celcius, humidity65%.Please help me with this issue, because every two hourse i used to cool the radiator from outside by water! I appreciate your help

REASONS FOR PERKINS GENERATORS TO SHUT DOWN (according to Ehow): 1. Not putting out correct voltage (too high or too low). 2. Wrong frequency 3. Wrong speed 4. Wrong oil pressure (too high or too low). ///////// Other sources of failure: High current, battery won't charge, speed sensor not working,

Q:fuel oil (called also heavy oil) operated engine.can be a dual fuel engine e.g. diesel / fuel oilor engine only or a generator set.generator 150~250 Kvaor engine only 200~300 HPused in working condition

Fuel oil is diesel. You can try a google on used machinery suppliers, they should give you some idea. Depending on where you are you will find someone who can help. Failing that if you already have a gen set, adapt a scania or volvo engine to drive it. Both these engines come in the horsepower range you are asking for and will give many years faithful service providing you look after them. All you need is to securely mount the chosen engine on a 3 channel frame, preferably on manufacturers engine mounts, with a adaptor plate (easily produced by anyone with half an idea) to drive the gen motor. Make sure you have warning lights (pref buzzer) in place for oil press, temp etc and you're in business.

Q:because generating electricity is not very efficient, coal being imported from bolivia etcDoes it matter how far the stations are apart?btw dieselectric means the locomotive isn't directly diesel-driven, but runs on electricity generated by a diesel-generator inside the locomotive

The advantages of dieselelectric outweigh steam, mostly due to the high maintenance required on coal-fired steam engines. Another large factor is the ability of electrical generator to drive the traction motors required to overcome the inertia of the enormous mass of the freight when the train is starting up. Efficiency is not simply the mechanical efficiency of the system, but the ability to maintain the system and adapt it to various tasks.

Q:i wan't to make a small diesel generator. I've access to all of the machines.which are needed in this project.i know about how the engine works.i don't know how piston rings and piston seals the combustion chamber,how to make them.how much power will my generator will generate.i wan't to make this generator for my PC.

With respect, you're actually asking how to design and build your own engine. There are entire books on the subject, and you need plenty of diagrams as well. That's far beyond the scope of an answer on here. But if all you need is a 12v regulated dc power supply why not just get a model car or boat engine and see if you can hook it up to a car alternator from a scrapped vehicle via a suitable pulley gearing? It certainly won't be quiet though, and you'll need to ensure that the engine is either fan or water cooled and that there's a suitable exhaust outlet. Model diesel engines aren't very large, but there are larger scale copies of the old British Mills engine design made in India, and also various websites which give you details or sell you plans on how to build your own. Usually they have lapped pistons so don't need the complication of piston rings.

Q:Everyday I learn a little more about boating. I have asked a couple question on here. Looking back they seem a little stupid now! I want to purchase a boat capable of being a live-aboard and be able to do coastal waters as well as the inter-coastal waterway. So far what I think I've learned is that a trawler with a pilothouse or fly-bridge will offer the most usable space. I've also figured size is important when talking to marinas. Today's question is, what items would you desire to have? Generator, auto, electric or manual toilet, gas or electric stove and refrig., gas or diesel power, etc. Back to the book store tomorrow! Thanks in advance.

You start by asking yourself questions. What sort of lifestyle do I want/need? Do I care about resale value? What can I maintain myself? What sort of maintenance do I want to do? In general keep it simple. The less moving parts/systems the less that can break. Quality pays but buying it at discount also pays. Long term cost of operation is also important. You cannot do too much research. There is an overload of help forums on the web, some interactive, but a lot of reviews. The boat is a tool, make it fit the job and your hand.

Q:I want to be able to plug my APC Smart-UPS RT 8000VA 208V into a diesel generator when our power will be down for an extended period of time. The max OUTPUT of the APC unit is 6400w. Does that mean I need at least a 6400w Generator?

If the unit is rated 8000 VA, and the output is 6400 W. that hints that the through-put efficiency is about 80%. You need a generator that will supply at least 125% of the load you apply to the UPS.

Q:here in the town i live in we recently had an avalanche take out power transmission lines from our hydro dam in the time it takes them to repair those 90% of our power is coming from diesel generators(you should have cringed there) causing the price per kWh to go up 500% for what might be the next 3 months.currently i make enough that i can live with a bill 5 times higher than im used to, but a couple of years ago that would have got me kicked out of my apartment because there was no way in hell i could find an extra 300 bucks a month with a week or two notice.its been a big deal here, but we are notorious complainers, so im wondering if that situation would cause you to write letters to editors and complain to everyone who will listen all day long?

no i pay about $100 a month as it is. my bill would over $500 a month. thats more than my car payment and almost as much as my apartment $590