kJ/kg↔mJ/g 1 kJ/kg = 1000 mJ/g.

To convert a megajoule measurement to a kilojoule measurement, multiply the energy by the conversion ratio. The energy in kilojoules is equal to the megajoules multiplied by 1,000.

1000000 mJ

To convert a kilojoule measurement to a megajoule measurement, divide the energy by the conversion ratio. The energy in megajoules is equal to the kilojoules divided by 1,000.

5 Megajoules

Convert 990 Kilojoules to Megajoules

Thus, a kiloJoule (kJ) is 1000 Joules and a megaJoule (MJ) is 1,000,000 Joules. A related unit is the Watt, which is a unit of power (energy per unit time). For example, 1 kWh [kilowatt hour] = 3.6 MJ [megaJoule].

kJ/t↔mJ/g 1 kJ/t = 1 mJ/g. kJ/t↔mJ/mg 1 mJ/mg = 1000 kJ/t. kJ/t↔mJ/ug 1 mJ/ug = 1000000 kJ/t. kJ/t↔mJ/ng 1 mJ/ng = 1000000000 kJ/t.

The formula to convert kg to MJ is 1 Kilogram = 89875517878.0936 Megajoule. kg is 89875517878.0936 times Bigger than MJ. Enter the value of kg and hit Convert to get value in MJ.

MJ/NM3 means Megajoules per normal cubic metre.

49 MJ

MJ/kg may refer to: megajoules per kilogram. Specific kinetic energy. Heat of fusion. Heat of combustion.

0.277778 kWh

The heat value of a fuel is the amount of heat released during its combustion. Also referred to as energy or calorific value, heat value is a measure of a fuel’s energy density, and is expressed in energy (joules) per specified amount (e.g. kilograms). Heat value.

hydrogen

Natural gas

Hydrogen fuel cells have bad theoretical and practical efficiency. Hydrogen storage is inefficient, energetically, volumetrically and with respect to weight. It has a horrible well-to-wheel efficiency as a result. Easy ways to get large quantities of hydrogen are not ‘cleaner’ than gasoline.

The key challenges include: Weight and Volume. The weight and volume of hydrogen storage systems are presently too high, resulting in inadequate vehicle range compared to conventional petroleum fueled vehicles.

The two prime dangers from fuel cell and hydrogen-powered vehicles are the danger of electrical shock and the flammability of the fuel. Fuel cells power vehicles by electro-chemically combining hydrogen gas (H2) and oxygen (O2) from the surrounding air into water (H20) and electrical energy.

According to OSHA, “Hydrogen used in the fuel cells is a very flammable gas and can cause fires and explosions if it is not handled properly.

In fact, many feel that H2 can be considered to be considerably safer than cars powered by gasoline. In the event of a hydrogen leak, the gas simply dissipates harmlessly. Moreover, the tanks that contain H2 are thick walled and carefully designed to prevent leaking, even after a substantial crash.

Some of the disadvantages of hydrogen energy include:

• Hydrogen Energy is Expensive.
• Storage Complications.
• It’s Not the Safest Source of Energy.
• Tricky to Move Around.
• It is Dependent on Fossil fuels.
• Hydrogen Energy Cannot Sustain the Population.

The all-wheel-drive car can go from zero to 60 miles per hour in a little over two seconds, the company said. Hydrogen fuel cell cars are electric cars that use hydrogen to generate power inside the car rather than using batteries to store energy.

In addition to the thin fueling station network, there is another reason for the as of yet low demand for hydrogen fuel cell cars: they are relatively expensive to buy. The few models of fuel cell vehicles already available on the market cost around USD 80,000 for a mid- or upper-mid-range vehicle.

The fuel cell stacks are designed to last the lifetime of the vehicle, about 150,000–200,000 miles. At the end of its lifespan, the fuel cell will be disassembled and the materials recycled, similar to what happens with vehicle components today.

But for personal car users, it’s no contest. Hydrogen evangelists are still arguing that FCVs are the future of personal transport and the technology will take off in 2020. It’s likely that FCV energy supply-chain efficiency will be improved over time and more renewable energy sources used in hydrogen production.