Water at 70 kPa and 100 C is compressed isentropically in a closed system to 7000 kPa. Determine the final temperature of the water and the work required in kJ/kg for this compression. Determine the temperature of water at a state of P =0.5 MPa and h=2890 kJ/kg. ...
Another practical approach for improving cell performance is the fabrication of polymer composite/nanocomposite membranes which can improve proton conductivity, water uptake/retention, thermal/chemical durability, mechanical strength, etc. [22,23,24]. Figure 2. The overview of main keyword clusters in ...
2.5.1. Fabrication of Metal–Insulator–Metal (MIM) Device N-type (100) silicon wafers (resistivity < 0.005 Ω·cm, Namkang Hi-Tech Co., Ltd., Seongnam, Republic of Korea) were used as substrates. The silicon wafers were first cleaned in boiling acetone for 30 min. Subsequently, an ultr...
The thermal stabilities of SCB and SCB-NH2were also investigated by thermogravimetry analysis method (TG). The thermal decomposition profiles are presented inFigure 3. In all samples, the first weight loss stage below 100 °C was ~5%, which is associated with the evaporation of water adsorbed ...