# A Sustainability Analysis Based on the LCA-Energy-Carbon Emission Approach in the Building System
## 4 Results and Discussion
### LCA-Carbon Emission Analysis
#### 4.2.2 The Carbon Emission of Building Construction Stage
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline
**Item** & **Data** & **Unit** & \
\begin{tabular}{c} **Carbon Emission** \\ **Factors** \\ \end{tabular} &
\begin{tabular}{c} **Carbon** \\ **Emission** \\ \end{tabular} & **Unit** \\ \hline Polypropylene & \(7.99\times 10^{3}\) & Kg & \(5.98\) tCO\({}_{2}\)/t & \(47.7802\) & tCO\({}_{2}\) \\ \hline Glass fiber & \(8.41\times 10^{3}\) & Kg & \(1.4\) kgCO\({}_{2}\)/kg & \(11.774\) & tCO\({}_{2}\) \\ \hline Iron & \(2.93\times 10^{4}\) & Kg & \(2.05\) tCO\({}_{2}\)/t & \(60.065\) & tCO\({}_{2}\) \\ \hline Ceramic & \(5.82\times 10^{5}\) & Kg & \(0.74\) tCO\({}_{2}\)/t & \(430.68\) & tCO\({}_{2}\) \\ \hline Glass & \(4.21\times 10^{6}\) & Kg & \(1.4\) kgCO\({}_{2}\)/kg & \(5894\) & tCO\({}_{2}\) \\ \hline Cement & \(5.33\times 10^{6}\) & Kg & \(0.07\) tCO\({}_{2}\)/t & \(373.1\) & tCO\({}_{2}\) \\ \hline Water & \(4.81\times 10^{4}\) & m\({}^{3}\) & \(0.82\) kgCO\({}_{2}\)/m\({}^{3}\) & \(39.442\) & tCO\({}_{2}\) \\ \hline Gravel & \(6.02\times 10^{4}\) & Kg & \(16\) kgCO\({}_{2}\)/kg & \(963.2\) & tCO\({}_{2}\) \\ \hline Diesel fuel & \(2.19\times 10^{2}\) & t & \(3.797\) tCO\({}_{2}\)/t & \(831.543\) & tCO\({}_{2}\) \\ \hline \multicolumn{5}{l}{**Heating and cooling systems**} \\ \hline Steel & \(4.61\times 10^{5}\) & Kg & \(2.67\) tCO\({}_{2}\)/t & \(1230.87\) & tCO\({}_{2}\) \\ \hline Polypropylene & \(4.78\times 10^{3}\) & Kg & \(5.98\) tCO\({}_{2}\)/t & \(28.5844\) & tCO\({}_{2}\) \\ \hline Aluminum & \(5.92\times 10^{3}\) & Kg & \(15.8\) tCO\({}_{2}\)/t & \(93.536\) & tCO\({}_{2}\) \\ \hline Glass wool & \(9.03\times 10^{3}\) & Kg & \(1.4\) kgCO\({}_{2}\)/kg & \(12.642\) & tCO\({}_{2}\) \\ \hline Brass & \(8.51\times 10^{3}\) & Kg & \(3.73\) tCO\({}_{2}\)/t & \(31.7423\) & tCO\({}_{2}\) \\ \hline Copper & \(8.66\times 10^{3}\) & Kg & \(3.73\) tCO\({}_{2}\)/t & \(32.3018\) & tCO\({}_{2}\) \\ \hline Diesel fuel & \(1.90\times 10^{2}\) & t & \(3.797\) tCO\({}_{2}\)/t & \(721.43\) & tCO\({}_{2}\) \\ \hline \multicolumn{5}{l}{**Electricity installations**} \\ \hline Copper & \(1.34\times 10^{4}\) & Kg & \(3.73\) tCO\({}_{2}\)/t & \(49.982\) & tCO\({}_{2}\) \\ \hline Aluminum sheet & \(4.82\times 10^{4}\) & Kg & \(15.8\) tCO\({}_{2}\)/t & \(761.56\) & tCO\({}_{2}\) \\ \hline Galvanized steel & \(5.72\times 10^{4}\) & Kg & \(15.8\) tCO\({}_{2}\)/t & \(903.76\) & tCO\({}_{2}\) \\ \hline Steel & \(9.04\times 10^{5}\) & Kg & \(15.8\) tCO\({}_{2}\)/t & \(14,283.2\) & tCO\({}_{2}\) \\ \hline Rubber & \(6.99\times 10^{4}\) & Kg & \(2.4\) tCO\({}_{2}\)/t & \(167.76\) & tCO\({}_{2}\) \\ \hline Polyester & \(7.83\times 10^{3}\) & Kg & \(72.65\) tCO\({}_{2}\)/t & \(568.8495\) & tCO\({}_{2}\) \\ \hline Iron & \(5.44\times 10^{4}\) & Kg & \(2.05\) tCO\({}_{2}\)/t & \(111.52\) & tCO\({}_{2}\) \\ \hline Ceramics & \(6.78\times 10^{4}\) & Kg & \(0.74\) tCO\({}_{2}\)/t & \(50.172\) & tCO\({}_{2}\) \\ \hline Plastic & \(9.94\times 10^{4}\) & Kg & \(7.83\) kgCO\({}_{2}\)/kg & \(778.302\) & tCO\({}_{2}\) \\ \hline Glass & \(3.82\times 10^{4}\) & Kg & \(1.4\) kgCO\({}_{2}\)/kg & \(53.48\) & tCO\({}_{2}\) \\ \hline Diesel fuel & \(1.69\times 10^{0}\) & t & \(3.797\) tCO\({}_{2}\)/t & \(641.693\) & tCO\({}_{2}\) \\ \hline \multicolumn{5}{l}{**Telecommunications system**} \\ \hline Copper & \(5.63\times 10^{4}\) & Kg & \(3.73\) tCO\({}_{2}\)/t & \(209.999\) & tCO\({}_{2}\) \\ \hline PVC & \(6.67\times 10^{4}\) & Kg & \(4.79\) kgCO\({}_{2}\)/kg & \(319.493\) & tCO\({}_{2}\) \\ \hline Aluminum sheet & \(7.98\times 10^{4}\) & Kg & \(15.8\) tCO\({}_{2}\)/t & \(1260.84\) & tCO\({}_{2}\) \\ \hline Plastic & \(2.33\times 10^{4}\) & Kg & \(7.83\) kgCO\({}_{2}\)/kg & \(182.439\) & tCO\({}_{2}\) \\ \hline Brass & \(4.53\times 10^{4}\) & Kg & \(3.73\) tCO\({}_{2}\)/t & \(168.969\) & tCO\({}_{2}\) \\ \hline Aluminum & \(6.74\times 10^{4}\) & Kg & \(15.8\) tCO\({}_{2}\)/t & \(1064.92\) & tCO\({}_{2}\) \\ \hline Glass & \(8.88\times 10^{4}\) & Kg & \(1.4\) kgCO\({}_{2}\)/kg & \(124.32\) & tCO\({}_{2}\) \\ \hline Steel & \(6.79\times 10^{4}\) & Kg & \(15.8\) tCO\({}_{2}\)/t & \(1072.82\) & tCO\({}_{2}\) \\ \hline Diesel fuel & \(1.90\times 10^{0}\) & t & \(3.797\) tCO\({}_{2}\)/t & \(721.43\) & tCO\({}_{2}\) \\ \hline \hline \end{tabular}
\end{table}