Gas anmbient Conditions Pressure I-78m ng Temperature! 20 Table I -Experimental
ID: 1766345 • Letter: G
Question
Gas anmbient Conditions Pressure I-78m ng Temperature! 20 Table I -Experimental results volume L 1 L ter 4.8 20 20 TWBE O 45 347 35 35 Table II- calculated values GV (gas volume correction value) inlet Water average temperature (C) Outer Water avernge temperature (C) Heated water mass (Kg) (p equals 1000 Kg/m Amount of gas consumed per I revolation 2 L Analvsis and calculations . Calculate the Gas calorific value and compare to theoretical one of 44.7 MJ/m2 (show your work STEP BY STEP) 2. Define higher heating (HHV) value and lower heating value (LHV) 3. Give 4 sources of error for this experiment, what enhancements would you suggest to improve it (sive 2) 4. Derive the unit of calorific value bons (M3/m') (NOTE water Cp equals 4.18 KJ/Kg.k) rmExplanation / Answer
Inlet water average temp =(19.5+19.8+20+20)/4
= 19.825
Average outlet temp = (84.5+84.7+85+85)/4 = 84.8
Density = mass/volume
1000 =mass /( 1/1000)
Mass = 1 kg
Higher heating value
If a fuel contain hydrogen as one of it's component, water vapor forms during the combustion. This water vapor carries a huge amount of heat energy. To obtain this energy we need to condense the water vapor. The total heat energy obtained during the complete combustion of the fuel including the energy if condensed vapor is known as higher heating value of the fuel.
Lower heating value
If the heat energy of the vapor is not considered the energy obtained is known as lower heating value of the fuel.
Source of error
1. As the container is not perfect insulator some amount of heat energy may loss which will affect the temperature reading. Heat loss may be reduced by giving proper insulation.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.