How is CHP calculated?

The calculation of effective electric efficiency is the CHP net electric output divided by the additional fuel the CHP system consumes over and above what would have been used by a boiler to produce the thermal output of the CHP system.

How do you calculate LHV of biomass?

To calculate the LHV you must subtract the heat of vaporization of H2O from the HHV. Long ago the heat of vaporization of water was 550 cal/g or (X the Mole wt of 18) 9900 cal/mole. Now it is (multiplying by 4.184 J/cal) 41,422J/mole or 41.4 kJ/mole (thanks to Mr. Metric).

How do you use Dulong’s formula?

Explanation: Apply the dulong’s formula that is: HCV = 1/100[8080C + 34500(H-O/8) + 22400S], here the C, S, O, H are the percentages of carbon, sulphur, oxygen and hydrogen. So, substitute all the given values in the formula and calculate so that you will get HCV.

How do you calculate energy from biomass?

multiplying GCV with volume/time gives you value of energy your biomass is producing. For instance if thermal rate of your bio-reactor is 20 kw. Convert it MJ/hr = 20×3600÷1000 = 61.2, Measure NCV of your biomass producer gas and the quantity i.e. volume / unite time, i.e.NCV of bio gas = 10 MJ/ cubic ft.

What is CHP electrical efficiency?

By using waste heat recovery technology to capture wasted heat associated with electricity production, CHP systems typically achieve total system efficiencies of 60 to 80 percent, compared to 50 percent for conventional technologies (i.e., purchased utility electricity and an on-site boiler).

What is the efficiency of thermal power plant?

The actual thermal efficiency of a modern thermal power plant usually ranges between 35% and 49%. 2.3 Generator loss Modern generators usually attain an efficiency of around 96%-99%.

How do you calculate LHV and HHV?

Under this formula, the relationship between the lower heating value of a fuel and the higher heating value of that fuel is: LHV = HHV – 10.55(W + 9H) Where: LHV = lower heating value of fuel in Btu/lb, HHV = higher heating value of fuel in Btu/lb, W = Weight % of moisture in fuel, and H = Weight % of hydrogen in fuel.

What is HHV and LHV?

The lower heating value (LHV) or higher heating value (HHV) of a gas is an important consideration when selecting a gas engine or CHP plant. Gas engines efficiency is typically quoted based upon the LHV of the gas. Whenever a hydrocarbon fuel is burned one product of combustion is water.

What is the Dulong’s formula for GCV and LCV?

L.C.V. = H.C.V. – ms x 2466 L.C.V. = H.C.V. – 9 H2 x 2466 KJ/Kg. Dulong’s formula used to calculate the theoretical calorific value of fuel if ultimate analysis is available and the calorific value of elementary combustibles are known.

What is LCV and HCV?

A LCV is defined in the Motor Vehicles Act as a vehicle with GVW of not more than 6 ton. A HCV is defined as vehicle with GVW of more than 6 ton. Gross vehicle weight is defined as vehicle weight plus rated payload. Rated payload is the maximum weight permitted to be loaded on the vehicle under Motor Vehicle Act.

What is the formula for biomass?

The calculation is defined as: biomass(net) = increase biomass(gross) — decrease biomass(gross).

Which formula gives the efficiency of an energy conversion?

The energy conversion efficiency is defined as the useful energy output (benefit) divided by energy input (cost), which is one of the most significant assessment parameters of energy systems.