Ranking Renewable and Fossil Fuels on Global Warming Potential Using Respiratory Quotient Concept

Table 1

Properties of macronutrients, adopted from Annamalai and Silva [11].

Nutrients	Formulae	M (kg/kmol)	St.O2 (kg/kg)	RQ	HHV; (kJ/kg)	(kJ/kg O2)
Glucose	C6H12O6	180	1.066	1	15,630	14,665
Fat	C16H32O2	256	2.869	0.7	39,125	13,635
Protein	C4.57H9.03N1.27; O2.25S0.046	119	1.54	0.8	22,790	14,705

Multiply HHV in kJ/kg by 0.43 to obtain BTU/lb.