Table nbsp Values of parameters used to determine second

Table 1.
Values of parameters used to determine second figure of merit F2 for different water loads.Water load (M) (kg)ParametersExp. DateAvg. insolation Is¯ (W/m2) for duration ΔtAvg. ambient temp. Ta¯ (°C) for duration ΔtTw1 (°C)Tw2 (°C)Time NSC127716 Δt (min)0.878336.160.391.16031/03/101.283034.661.994.58010/08/091.685435.559.793.29023/03/102.088436.762.592.79029/03/102.282440.063.390.49019/05/102.681541.460.087.510017/05/103.081041.059.986.311018/05/10Full-size tableTable optionsView in workspaceDownload as CSV
Fig. 4. Variation of second figure of merit with water load.Figure optionsDownload full-size imageDownload as PowerPoint slide
The values of ηu and tc have also been calculated for each load by using Eqs. (3), (4) and (5). The parameters used for nares calculations are given in Table 2. These values are plotted with water load in Fig. 5.
Table 2.
Values of parameters used to determine utilizable efficiency (ηu), specific boiling time (ts) and characteristic boiling time (tc) for different water loads.Water load (M) (kg)ParametersExp. DateΔt (min) (temp. rising time till Tw.)Tw (°C) (Maximum water temp.)Ta (°C) (Ambient temp. correspond to Max. Tw)(Tw − Ta) (°C)Avg. inso. Is¯ (W/m2) (For 10:00 to time correspond to Max. Tw0.811095.035.959.1784.431/03/101.213094.535.059.5790.010/08/091.616099.037.261.8817.623/03/102.018097.638.059.6841.729/03/102.218094.141.552.6792.819/05/102.618087.543.044.5773.617/05/103.019089.843.046.8777.518/05/10Full-size tableTable optionsView in workspaceDownload as CSV