MarineDiesel Dealer Profile – JMP Marine Korea

 

Today’s article is about our distributor in the Republic of Korea, JMP Marine. MarineDiesel has long worked with JMP in Korea, and we are proud to have such a technically proficient partner working with us there.

The Korean market is complex, with rigid emissions regulations and a well-developed shipbuilding industry. JMP Marine is well-positioned, with their office in Busan, in the center of the Korean maritime industry.

JMP has been working with numerous engine and repair companies manufacturing whole pumps or parts under the direction of engineers looking for the quality expected of the pumps to be used on the engines they manufacture or repair.

JMP offers their experience in the R&D department to bring out new pumps for engine manufacturers. JMP offers a niche market in the parts supply for older pumps. They include Shafts, Cams, Mechanical Seals, Bearings, Gaskets, O-Rings, Cover Plates etc.

In addition to being a manufacturer of innovative impellers and pumps, they represent MarineDiesel and several other engine brands in Korea, including Seasall. They are fully factory trained and maintain complete spare parts in-country.

If you are interested in a quote for your project, please contact JMP Marine:

JMP Marine

74-7 Samrack-dong, Sasang-gu, Busan
Korea 617-070
Phone: +82 513027337
Mail: jmp@jmp.co.kr

 

 

Genset Engines

 

 

Here at MarineDiesel, we often receive inquiries as to whether or not we manufacture generators. The answer is “no”, though we do manufacture engines that can be used to power gensets. Why would someone who needs a generator just purchase an engine?

Quite simply: We can customize the engine for the application.

Most (though not all) generator manufacturers do not manufacture the engines used in the generator. The reason is because providing electrical power is a different specialization than providing mechanical power. There are dozens of different variables in power generation, and the production of standalone models requires many different options and a different manufacturing process.

So, when asked to provide an engine for a generator, we nearly always receive this type of inquiry from either a generator manufacturer or from someone who needs a very specialized generator with needs that “off the shelf” models cannot meet. For instance, we can manufacture engines with customized levels of continuous power or multiple engine maps for different uses of the same genset.

MarineDiesel has, over the years, provided both marine and industrial engines for gensets and applications as widely varied as for electricity on large mining equipment to small fishing boats. We also can often refer people to our customers who are generator manufacturers and specialize in electrical power.

 

 

Financing Your Engines

 

 

Engines usually constitute a major percentage of the costs of any marine or industrial project. Indeed, on some high performance boat designs, the engines and drives can be as much as 30% or more of the total price.

By offering complete propulsion packages, engine, gearbox, and drive, MarineDiesel can often help offset some of these costs while guaranteeing performance levels.

However, formal financing is often a requirement for our customers, particularly on large projects.

Engine purchases are often very difficult to finance, due to the fact that it can be very difficult to separate an engine purchase from the purchase of the vessel. It comes down to risk: The finance company looks at the risk from the “what if the customer doesn’t pay?” perspective. This problem is compounded by the fact that engines depreciate up to 30% of their value on the date of commissioning, whether used beyond that date or not. Therefore, most engine manufacturers that offer financing are only able to make that offer when the engines are tied via lien to the financing of the vessel as a whole. This often causes conflicts with documentation or complications on the financing itself.

So, what is the solution?

MarineDiesel works with EKN, the Swedish government’s export finance department ( EKN Website ), to offer financing plans to our customers. The financing program requires approval, and is not available in every region or on every project, but we have financed numerous projects through them in the past, and the process is relatively straightforward.

Additionally, MarineDiesel works with other lenders in different regions, and we can occasionally make arrangements for specific projects. Simply inquire with us or your local distributor at the time of quotation and we will try and arrange a financing proposal for your project.

 

 

 

Our VGT Series for Industrial Use

 

 

As we’ve written in the past, MarineDiesel manufactures engines for both marine use and industrial use. we are licensees of General Motors’ entire line of available engine blocks, and can modify those blocks to meet many different applications.

Our VGT Series is a standardized, marine version of the GM 6.6 L V-8 block. We manufacture these engines as the premier part of our product line.

However, we can also manufacture this engine for industrial use, through our MDPT subsidiary, providing a wide range of power, torque, control, and cooling options. We have manufactured this engine in the past for the following types of projects:

1. Tanks

2. Amphibious vehicles

3. Airboats

4. Generators

5. Pumps

6. Winches

7. Railroad

Take a look at the specifications below, and contact us today with any projects where this engine could provide a solution.

Specifications:

Engine Model: VGT

Displacement: 6.6 litre

Cylinders: 8

Bore X stroke: 103 X 99 mm

Power: 100-280Kw depending on rpm and application

Compression ratio: 16,0

Turbocharger type: VGT

Fuel type: Diesel

Min working temp: -30C

Fuel system: Bosch common rail 1800bar

Weight: approx 360kg (dep on accessories)

Size (LXWXH): 812 X 680 X 780 mm

Scope of Supply:

  • Starter motor and alternator
  • Exhaust manifold and turbocharger
  • Intake manifold and basic air filtration system
  • Integrated oil cooler
  • Integrated oil filter
  • Integrated fuel filter
  • Belt system and tensioner
  • Flywheel
  • Engine wiring harness and ECU (J1939)
  • BTU data for sizing radiator and intercooler
  • Diagnostics software

Options:

  • SAE #3 bell housing and matching coupler
  • Cooling package including radiator, intercooler, electric fan, hoses etc
  • Engine monitoring displays of different sizes
  • Multiple engine mounting options
  • Multiple calibration options for continuous and variable speed applications and different duty cycles.
  • Multiple air intake option
  • Multiple exhaust system options
  • Private label diagnostics software (with your company logo)
  • Diagnostics and mechanical training
  • Hardware CAN cable for diagnostics software
  • Emissions certifications
  • NATO Milspec certification
  • After treatment components

 

 

Best of 2014 – Industrial Engine Week, Airboats

 

 

We wish all MarineDiesel customers a happy holiday season. Our factory will close from December 22 through January 5. For the balance of the year, we will be re-running our most popular articles from 2014, based on the number of visitors. We will start new daily articles in the New Year. We hope that you continue to find them interesting.

Today is the final day of our industrial engine week, and we focus on a niche market that has been up-and-coming for MDPT over the last couple of years: Airboats. Hmmm…

Industrial?

Correct. Airboats are a special case that is handled by MDPT rather than the larger MarineDiesel group because airboats are a hybrid of sorts. They are boats, but they use engines that are engineered for use on land. This makes them unique in the marine world.

Traditionally, airboats were simple vehicles: A shallow, flat bottomed boat with a (usually) used aircraft engine mounted astern that featured a direct coupling to an aircraft propeller straight off the flywheel. Ratios were inexact, with propeller pitch largely used to control performance levels.

Modern airboats bear little more than a casual resemblance to these old vessels. Modern airboats can now be equipped with climate controlled cabins, gun positions for military use, and are always equipped with modern, compact and high powered engines. Propellers are designed with lightweight composites, and there are complex gear or belt drive systems that can include variable gear ratios. Indeed, some airboats are now equipped with contra-rotating dual props that provide huge amounts of torque and extremely high speeds.

Airboats are often commonly seen in the Everglades, or on TV shows like “Swamp People”, and so on. They handle conditions in swamps quite well, being shallow draft and not having any propeller to run aground or get snagged. However, there are many other applications for airboats, and this niche market is booming: Military use for patrol, rescue, use on ice. All of these uses are now common.

For more information:

Leppek, Adam P., “Optimization of an Airboat Design” (2012). Honors Theses. Paper 2180. offers a good and interesting overview of modern airboat design and why airboats are well suited for their application.

MDPT is at the forefront of powering some of these cutting-edge designs. Our marine heritage serves us well in providing specialized engines for airboats. As we mentioned earlier, airboats are a hybrid of sorts. They use engines designed for use on land, but they are exposed to the harsh marine environment. We have the ability to combine these two fields of expertise into a single, customized and application-specific product, with appropriate injectors, connectors, and cooling systems. We also work very closely with the drive manufacturers, propeller manufacturers, and designers to offer complete airboat propulsion packages.

We have completed airboat projects in Russia, Finland, the USA, Australia, and Thailand, and this market segment is becoming a specialty of MDPT. Contact us today on your next project, but please see below for some previous MDPT installations.

PantherDuramaxFinland AA 022012022??????????????????STAATSOLIE

Engine Market Insights: USA

 

 

Today’s interview is with Mr. Malcolm Phillips, CEO of Performance Diesel, Inc., MarineDiesel’s distributors in the United States and North America.

united-states-of-america USA

Performance Diesel Inc.

12130 Galveston Rd
77598 Webster, TX
Phone: +1 281-464-2345
Mail: mphillips@performancediesel.com
  1. How long have you been in business in the USA?

Since 1985

2. What is your company’s mission and goals?

Our mission is to provide the highest quality of service to our customers in the marine and industrial diesel engine markets. We represent quality products made by quality manufacturers. Our continued success can be attributed to the outstanding service and support we provide for the products we supply our customers. We will remain committed to customer satisfaction and continue to uphold the highest degree of integrity and professionalism while achieving market share and corporate goals.

  1. What makes Performance Diesel unique? (Services offered, capabilities, etc.)

We are a Self Proprietorship which allows for decisions to be made quickly. Therefore, if issues arise, we react swiftly in order to satisfy of customers needs.

Our two main packaging and manufacturing management staff have more than 50 years of experience together, and our production and manufacturing staff are with us for over 10 years. Therefore, we have well trained employees who are capable of getting the job done in the shortest time as possible.

Our service staff is highly trained, and are able to correct any issues in the field, overseas and in our shop, in short order.

Our COO has been a key part of our success and knows our operation inside and out. Mr Brent Wagner has been with the company for over 20 years.

Our sales staff are not only trained in sales, but have come from the service side of our company, which is critical from the owners perspective as our expertise is making sure that we sell the right product for the application.

Our owner has been in the Diesel Engine Service and manufacturing business since 1974 and continues to be directly involved with our customers and core business.

Performance Diesel Inc is capable of assisting our customers will all of there engineering and installation needs as we are both 2D and 3D capable.

  1. In addition to MarineDiesel, what are your other major product lines?

MAN Engines and Components, Hyundai SeasAll marine engines, ZF marine transmissions, Castoldi Waterjets, Northern Lights Gen sets and PDI custom generator sets.

  1. What is the engine market like in the USA?

We have been struggling for the last 4 to 5 years, however this spring we have seen activity on the Custom Pleasure-craft side of our business starting at 50 feet to 60 feet class boats.

We continue to see weakness with production builders. And the stern drive sector has more or less been taken over by outboards. Outboards are now powering the vast majority of boats sizes from 20′ to 40′ in the US.

Military and commercial business also continues to be weak due to budget cutbacks, though we just began a small government order of five shipsets.

  1. What are your greatest challenges in the engine market?

The US owners do not use their pleasure craft as much as other countries, therefore, the need for diesel power is less. Gasoline power remains a choice, and will until gas engine prices increase and the cost of gasoline becomes similar to the cost of Diesel. One other issue is the availability of diesel fuel around our inland lakes.

  1. Where are the greatest opportunities in the engine market in the USA?

I can’t pinpoint one great opportunity. Business today requires attention to all opportunities from pleasure craft to commercial and military in order to survive.

  1. How do you see the engine market in the USA in the next five years?

We are seeing a small increase in 45′ to 58′ class pleasure craft. The larger pleasure craft sales in the custom boat market remain strong, but this market is less than 100 boats per year with horsepower ranging from 2 x 1800 hp to 2 x 2800 hp.

Small production builders continue to show low numbers, and is a market of only a few thousands boats rather than more than 10,000 boats per year, and outboards are dominating this market.

We are hoping that the US military budget will increase as we understand that there is a need for new vessels, however requirements for these new vessels are asking for outboard power.

During my travels to Europe I hear and see the same issues that we are experiencing in the US. With current sales staff and our dealer network, we hope to capitalize on every opportunity possible. We firmly believe that we have superior products to offer, however we continue to deal with ferocious competition when it come to cost and end pricing. In order to increase sales over the next five years, we must continue to find ways to lower cost and to provide the best product possible. We do not expect to see a big recovery within the next five years. However, we do expect to see opportunities increase by 10 to 20 percent per year over the next 5 years.

 

Engine Market Insights: Vietnam

 

 

This week, we are starting a series of articles that consist of interviews with our distributors around the world about their insights into the small engine market in their respective countries. We hope you find them interesting and useful.

We start this series today with an interview with Ms. Thuy, South Area Sales Manager for Century Company, Ltd., MarineDiesel distributors for Vietnam:

vietnam Vietnam

Century Company Limited

11B Minh Khai st.
Hai Phong
Vietnam
Phone: +84 (31) 384 29 93
Fax: +84 (31) 382 28 55
Mail: info@thtcentury.com

1.       How long have you been in business in Vietnam?

16 years

2.       What is your company’s mission and goals?

Century is a company doing business in 2 fields: manufacturing and trading.

Therefore, its’ mission and goals are:

–          In manufacturing: to become a leader in manufacturing FRP boats in Vietnam and export to foreign countries.

–          In trading: to cover up to 50% of engine market in Vietnam

3.       What makes THT Century unique? (Services offered, capabilities, etc.)

Century supplies quality services to the market (the services are widely in boats, engines, and equipment… a full picture of a boat or vessel.)

4.       In addition to MarineDiesel, what are your other major product lines?

Century also distributes Lombardini marine inboard engines (from Italy) and Evinrude outboard engines (from BRP US).

5.       What is the engine market like in Vietnam?

Very competitive. There are such types of engine branches doing business in Vietnam. The most popular is Yanmar, Caterpillar.

6.       What are your greatest challenges in the engine market?

MD is quite new branch in our market, also the engine get lots of constraints compared to other engines.

 7.       Where are the greatest opportunities in the engine market in Vietnam?

The other engine branches are quite old and full in production. It’s time for new and young enginse to grow up with quality services and stable, persistent quality engine.

 8.       How do you see the engine market in Vietnam in the next five years?

        The forecast is quite good, as the economy in Vietnam is recovering and going up. The Asian community is preparing to be an integrated trading community.

 

 

 

Engine Comparisons: MDPT 6.6L Land Vehicles

 

 

Recent comparison of the MDPT 6.6L engine modified for off-road land vehicle use in extreme climates:

Specifications:

Engine Model: MDPT VGT

Displacement: 6.6 litre

Cylinders: 8

Bore X stroke: 103 X 99 mm

Power: 100-280Kw depending on rpm and application

Compression ratio: 16,0

Turbocharger type: VGT

Fuel type: Diesel

Min working temp: -30C

Fuel system: Bosch common rail 1800bar

Weight: approx 360kg (dep on accessories)

Size (LXWXH): 812 X 680 X 780 mm

Scope of Supply:

  • Starter motor and alternator
  • Exhaust manifold and turbocharger
  • Intake manifold and basic air filtration system
  • Integrated oil cooler
  • Integrated oil filter
  • Integrated fuel filter
  • Belt system and tensioner
  • Flywheel
  • Engine wiring harness and ECU (J1939)
  • BTU data for sizing radiator and intercooler
  • Diagnostics software

Options:

  • SAE #3 bell housing and matching coupler
  • Cooling package including radiator, intercooler, electric fan, hoses etc
  • Engine monitoring displays of different sizes
  • Multiple engine mounting options
  • Multiple calibration options for continuous and variable speed applications and different

duty cycles.

  • Multiple air intake option
  • Multiple exhaust system options
  • Private label diagnostics software (with your company logo)
  • Diagnostics and mechanical training
  • Hardware CAN cable for diagnostics software
  • Emissions certifications
  • NATO Milspec certification
  • After treatment components

 

BENEFITS OF MDPT ENGINES:

1. Extended Life Cycle: MDPT engines have a much longer life cycle than competing engines. There are several reasons as to why. First, the GM block has been produced in the millions of units, and is currently used by military organizations around the world. The reliability is unmatched. The MTBO of MDPT engines can range from 2,500 hours to over 5,000 hours depending on rating, climate, use, and engine MAP. At an average cost of a rebuild exceeding 60% of the cost of replacement, this long life cycle translates into thousands of Euros per year in savings. Additionally, the power and torque curves of competing engines show “spikes” that increase strain and wear of not only engines, but other vehicle components, and thus significantly shorten the life cycle and service intervals necessary to keep the engines running. Competing engines typically start with larger engines that are de-rated in order to provide a longer life cycle. The MDPT engines are designed specifically for compact, light, long life applications. The VGT Series is NATO compliant and certificates can be issued.

2. Customizable: Truck engines are designed to provide a huge amount of torque at the outset, and gradually decrease as momentum is maintained on a highway. This situation rarely occurs with off-road vehicles. The NIRA ECU in MDPT engines is completely customizable. Cummins and other manufacturers tend to use Bosch ECUs for engine controls that cannot be changed without significant extra expenditures (If it can be done at all. The Bosch ECU itself is limited in functionality.) What does this all mean? For instance, MDPT can “shift” the power and torque curves based on customer requirements. For example, with amphibious vehicles, MDPT engines can be programmed to allow more torque and power while operating amphibious, all at a touch of a switch by the operator. This functionality is known as an engine MAP, and MDPT can allow multiple MAPs that can easily be altered based on customer requirements. Other examples:

  • Use of the vehicle in urban settings
  • Use under extreme environmental conditions
  • Optimized for speed on-road
  • Optimized for use off-road
  • Extra torque for rapid acceleration

3. Reduced Vibration and Noise: MDPT engines are a V-8 configuration that, due to the laws of physics, produce far lower levels of torsional vibration than inline 6-cylinder engines.  As to noise, MDPT engines are among the quietest in the market. MDPT has extensive experience with noise reduction and control. Engine noise can be minimized before shipment in our test bays and labs, and further reduced by engineering design and aftermarket silencing systems that we can package with the engine.

4. Light Weight: The MDPT VGT Series of engines weigh a mere 360 kg, compared to the Cummins ISB at 485 kg or the QSB5.9 at over 500 kg. The MDPT engines were designed for high power to weight ratio. Competing engines are de-rated from higher horsepower, and are thus much heavier.

5. Torque: Competing engines have torque curves that sharply spike on the low end of the RPM range and then sharply decrease. MDPT engines feature torque curves that evenly distribute the torque produced at a high level along the entire curve.

6. Engineering: MDPT provides a complete turnkey package. Factory supervision and consultation will be provided from initial engineering, to drawings, to installation, commissioning, mechanical training, and operations training.

7. Rating for Climate: MDPT engines come rated for the local climate. Customers in tropical climates will not see the power loss that is commonly seen with competing engines.

8. Emissions: MDPT engines are in compliance with Tier IV off-road requirements in the EU or USA.

9. Fuel Efficiency: The VGT turbochargers on MDPT engines provide high power while minimizing fuel consumption, to a far greater extent than older, mechanical engines.

10. Compact Size: MDPT engines are designed to fit in compact engine compartments. We are one of the smallest engines in terms of size on the market.

11. Extended Warranty: An extended warranty is available.

engine comp

MD:                                       812 X 680 X 780

Cummins:                       844 X 950 X 857

Scania:                               1406 X 861 X 1113

CAT:                                     1089 X 986 X 970

Iveco:                                  1017 X 805 X 790

 

Curves:

MDPT:

vgt torque

Cummins:

cummins torque

Scania:

scania torque

scania power

CAT:

cat torque

 

Iveco:

Iveco torque

Cost / Benefit Analysis: LPG Engine to Power Generator

 

 

The following article is a cost / benefit analysis we prepared recently for a MarineDiesel customer showing a financial case for using LPG instead of diesel to power a medium  sized generator. The customer name has been removed, and costs are converted to Euros at local rates (prices will vary, based on your region, but this is a good, general comparison). The engine p

roposed is based on the 5.7L GM Vortec engine block.

Initial benefits of the MarineDiesel product line include:

  1. The ability to use LPG instead of gasoline or diesel for power.
  2. Customer payback time in a matter of months through fuel cost savings.
  3. Multiple markets for the engines, ranging in use from small generators to irrigation, mining, marine, pumps, or small vehicle power.
  4. Factory conversion to LPG, as opposed to cheap converter kits commonly found in the market. A primary benefit of this procedure is seamless integration of the LPG kit into the engine’s ECU. Aftermarket conversion kits often do not integrate fully, voiding the warranty or rendering engine fault warnings incorrect. For this reason, aftermarket conversion kits, such as are currently being sold cannot be recommended for proper installation and life cycle. Furthermore, MarineDiesel engines have been designed specifically with alternate fuels taken into account. Though there are some immediate cost savings associated with aftermarket conversions, they simply are not an accurate substitution for a proper OEM design.
  5. Full MarineDiesel warranty terms apply.
  6. Government financing may be available. 

 

Life Cycle

General Motors has been manufacturing the Vortec block configured to LPG for nearly thirty years.

Thousands of units have been sold and the engine has proved to be extremely reliable.

The MTBO is at 10,000 hours of use, however, it is highly dependent on climate and continuous RPM.

 

Cost to Operate

The 5.7L LPG consumes fuel based on engine load.

100% Load:         9.3 m3 / hour

75% Load:            7.1 m3 / hour

50% Load:            5.4 m3 / hour

25% Load:            3.8 m3 / hour

 

<<COMPARE VS EQUIVALENT DIESEL>>

100% Load:         27 L / hour

75% Load:            20 L / hour

50% Load:            12 L / hour

25% Load:            8 L  / hour

 

Current prices of fuel (local converted to Euros):

LPG:   0.30 / litre

Diesel: 0.79 / litre

Average annual use of 4,400 hours per year, assuming 75% load at 1,800 RPM.

LPG consumption 3.85 Liters / m3

27.335 Liters LPG / Hour

LPG annual cost of fuel consumption: 33,075

Diesel annual fuel consumption: 65,978

Cost of ownership, year one

Diesel:

Cost of Engine:                                                  5,000

Operating Cost:                                                                65,978

Service and spares (oil filters, etc):          2,900

Total Cost Year One:                73,878

LPG:

Cost of Engine:                                                  7,250

Operating Cost:                                                                33,075

Service and Spares:                                         2,500

Total Cost Year One:                42,825

 

Payback Time: 3 months

 

Amount of Power Produced

This is a difficult question to answer, since it will vary greatly based on the alternator chosen. In order to keep everything consistent, the same Kohler alternator 4P10X, will be used. This same alternator is used by numerous other manufacturers to produce the same amount of electricity, using LPG, Diesel, or CNG.

This alternator will produce 52 kW of power at 110 / 220 50 hz, using the 5.7L engine.

To put this amount in context, 52 kW is roughly enough to power 20 medium to large window unit air conditioners, or a medium-sized restaurant.

Therefore, given the usage described above, using LPG,

One Hour: 4.37

One Day: 91.88

One Month: 2756

One Year: 33,075

Cost per kWH: 0.147

 

A diesel genset produced by Baifa, using a Deutz engine made in China, producing 48kW using the same alternator would cost to run continuously:

One Hour: 10.35

One Day: 124.15

One Month: 3,725

One Year: 44,696

Cost per kWH: 0.216

 

A similar diesel genset, produced by John Deere using a four cylinder, John Deere diesel engine and using, again, the same alternator,

One Hour: 26.93

One Day: 323

One Month: 9,690

One Year: 116,276

Cost per kWH: 0.518

 

Tank Capacities

For small home / commercial use, portable LPG tanks come in the following sizes: 4 kg, 7 kg, 15 kg, and 48 kg.

The standard size for tanks installed in vehicles (permanently mounted, even on trailers, for safety reasons) is 58L (30.39 kg).

For commercial or industrial use, particularly when the engines will be used to power continuously, rather than as standby, typically large, above ground or underground tanks are used. The most common sizes of above ground tank are 1T (1,908 L) and 4.3 T (8,204 L).

Which tank that should be used and how long the generator will provide power on a single tank are really highly dependent on how the genset will be used. The smaller LPG “cooking gas” cylinders will occasionally “freeze” due to the atmospheric pressure difference if too much is drawn from the tank. Therefore, the smaller 4kg and 7kg tanks should not be used with the 5.7L. Remember additionally, 100% of the tank volume will never be able to be removed, again due to pressure. Therefore, a factor of 15% is reduced for simple numbers on LPG.

 

5.7 L Vortec with 4P10X, 12 hours per day continuous RPM use (1,800 RPM)

Tank Size Diesel Equivalent Cubic Meters LPG Reduce 15% below Full on LPG (Usable Amount in tank) Time between Fill-ups LPG Time between Fill-ups Diesel
15kg (Cylinder) 28.6L 8.085 7.03 m3 59 minutes 1 hour, 20 minutes
48 kg (Cylinder) 91.6 L 25.872 22.5 m3 3 hours, 10 minutes 4 hours, 40 minutes
30.39 kg (Taxi standard) 58 L 16.38 14.24 m3 2 hours 2 hours, 50 minutes
73.36 kg (Trailer max) 140 L 43.5 37.83 m3 5 hours, 30 minutes 7 hours
1,000 kg (above ground) 1,908 L 539 468.7 m3 5.5 days 8 days
4,300 kg (above ground) 8,204 L 2,317.7 2,015.4 m3 23.5 days 34 days

 

Diesel versus LPG versus CNG versus Petrol

 

 

MarineDiesel offers many different engines that can easily be customized to meet our customers’ requirements, industrial or marine applications, either on a project basis, or a ready-to-install solution. As environmental and economic constraints often determine the type of engine or power package offered, the critical constraint is usually a tradeoff between regulatory compliance and cost of operation.

Different engine blocks offer different options. Sometimes, an engine must be converted at the factory, using a kit (such as our larger diesels), or an engine may be easily adapted (such as in the case of most of the GM Vortec line).

Alternative fuels also each have advantages and disadvantages. This article will offer comparisons between Diesel, LPG, CNG, and Petrol, at a glance:

Petrol Advantages:

  1. Good power and acceleration.
  2. Better cold weather operation. No fuel line heater required.
  3. Usually less expensive than other engines.
  4. Low Maintenance.
  5. Low Noise.
  6. High availability.

 

Petrol Disadvantages:

  1. Greater fuel consumption than other fuel types.
  2. Price of fuel is usually higher.
  3. Emissions control required in many jurisdictions.
  4. Lower safety due to fire / explosion risk.

 

Diesel Advantages:

  1. Lower maintenance costs.
  2. Efficient combustion. Greater power output than other fuel types.
  3. Common fuel availability.
  4. Less expensive than petrol (Generally).

 

Diesel Disadvantages:

  1. Slower Acceleration than petrol.
  2. Noise.
  3. Cold weather requires heating.
  4. Emissions control necessary. Ultra low sulphur diesel mandated in many markets.

 

CNG Advantages:

  1. Cheapest fuel based on power output.
  2. Very low emissions.

 

CNG Disadvantages:

  1. Expense of conversion.
  2. Lower acceleration.
  3. Fuel availability is often restricted / unavailable.
  4. Time to fill tanks can be problematic.
  5. Engines tend to be heavier.
  6. Explosion risk (Higher insurance)
  7. Freezing of fuel lines in hot climates can be problematic. Higher maintenance.

 

LPG Advantages:

  1. Much cheaper than petrol or diesel.
  2. Low emissions.
  3. Portability of fuel.

 

LPG Disadvantages:

  1. Tank sizes can be problematic.
  2. Availability in some markets is lacking.
  3. Freezing fuel lines in hot climates.
  4. Expense of conversion.
  5. Inability to use all fuel in a tank (due to pressure)
  6. Higher maintenance.