(Solved): Example Calculate the carbon dioxide emissions per MWh of output from two power stations. (i) Power ...

Example Calculate the carbon dioxide emissions per MWh of output from two power stations. (i) Power Station \"A\" is a CCGT unit and uses natural gas \\( \\left(\\mathrm{CH}_{4}\\right) \\). The operating efficiency is \$52$. (use a NCV of \\( 50 \\mathrm{GJ} / \\mathrm{t} \\) ) (ii) Power Station \"B\" is a CHP unit and uses biomass (cellulose \\( \\mathrm{C}_{6} \\mathrm{H}_{10} \\mathrm{O}_{5} \\) ). The combined operating efficiency is \$87$ while the electrical operating efficiency is \$30$. (Use a \\( \\mathrm{NCV} \\) of \\( 17 \\mathrm{GJ} / \\mathrm{t}) \\). What is the Carbon intensity if there is no requirement for thermal energy at this site? NCV = Net Calorific Value (useful energy output per tonne)