Q3 A Figure 2 Shows The Equivalence Of Different Materials In Thermal Mass Discuss How This Equivalence Has Been Ach 1 (51.71 KiB) Viewed 57 times
Q3 A Figure 2 Shows The Equivalence Of Different Materials In Thermal Mass Discuss How This Equivalence Has Been Ach 2 (51.71 KiB) Viewed 57 times
Q3. (a) Figure 2 shows the equivalence of different materials in thermal mass. Discuss how this equivalence has been achieved with different thicknesses of the materials. [8 marks) (b) Table 1 gives a list of phase change materials (PCM), which may be used for the production of plasterboard wall panels. Define a suitable PCM for most effective PCM plasterboard and describe how this PCM plasterboard wall panel is produced. [12 marks] PCM Brickwork Concrete Massive wood 2 cm 36 cm 24 am 38 cm Figure 2 Table 1 Type, latent heat and melting temperature of PCM Type Latent heat of fusion Melting point (°C) (kJ/kg) Paraffin C16 237.1 16.7 Paraffin C17 213.0 21.7 Paraffin C24 255.0 50.6 Capric/Palmitate 153.0 22.1 Capric/stearic acid 178.6 24.7
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