A photovoltaic (PV) module is installed in a location at latitude 40 N. The PV module...
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A photovoltaic (PV) module is installed in a location at latitude 40° N. The PV module is tilted towards the south and the tilt angle is the latitude of the location, i.e., Σ=40°. (a) On the 21st of March (equinox day) at solar noon for that location: Indicate the sun altitude (B) and azimuth angle (,). If the direct beam insolation at ground level la is 950 W/m², calculate the direct beam insolation on the PV module (IBC). . - - - If the diffuse factor C is 0.082, calculate the diffuse radiation on the PV module (IDC). (9 Marks) (b) The PV module I-V characteristic under the operating conditions of part (a) is shown in Figure 1 on Page 3. Estimate the power supplied by the PV module in the following cases: If the reflectance coefficient on the ground p is 0.1, calculate the reflected radiation on the PV module (IRC). The load is a battery having a voltage VB of 25 V. - The load is a resistance R of 5 Ohms. There is a DC-DC converter between the PV module and the load that is operated with maximum power point tracking. Note: Draw Figure 1 in the answer booklet and indicate the operating points corresponding to the conditions above graphically. (9 Marke) to bonintniem ad boilgua ud lenodibba Current (A) 12 10 ows axumalb bring 00 9 0 0 baol 15 111 EE4534 5 10 20 25 30 35 40 STAPOC to poral bool iw W one Voltage (V)ga no batman muna sil OLI si bnamab mum Figure 1 wolod novig ons moleva (c) Explain what bypass diodes and blocking diodes are in the context of solar PV generation and justify why they are needed. Support your explanations with drawings. noillim 02.12 pitudizizib bas noizzimunss munan voq 2001 noituisoqob bau Temini (d) (7 Marks) A photovoltaic (PV) module is installed in a location at latitude 40° N. The PV module is tilted towards the south and the tilt angle is the latitude of the location, i.e., Σ=40°. (a) On the 21st of March (equinox day) at solar noon for that location: Indicate the sun altitude (B) and azimuth angle (,). If the direct beam insolation at ground level la is 950 W/m², calculate the direct beam insolation on the PV module (IBC). . - - - If the diffuse factor C is 0.082, calculate the diffuse radiation on the PV module (IDC). (9 Marks) (b) The PV module I-V characteristic under the operating conditions of part (a) is shown in Figure 1 on Page 3. Estimate the power supplied by the PV module in the following cases: If the reflectance coefficient on the ground p is 0.1, calculate the reflected radiation on the PV module (IRC). The load is a battery having a voltage VB of 25 V. - The load is a resistance R of 5 Ohms. There is a DC-DC converter between the PV module and the load that is operated with maximum power point tracking. Note: Draw Figure 1 in the answer booklet and indicate the operating points corresponding to the conditions above graphically. (9 Marke) to bonintniem ad boilgua ud lenodibba Current (A) 12 10 ows axumalb bring 00 9 0 0 baol 15 111 EE4534 5 10 20 25 30 35 40 STAPOC to poral bool iw W one Voltage (V)ga no batman muna sil OLI si bnamab mum Figure 1 wolod novig ons moleva (c) Explain what bypass diodes and blocking diodes are in the context of solar PV generation and justify why they are needed. Support your explanations with drawings. noillim 02.12 pitudizizib bas noizzimunss munan voq 2001 noituisoqob bau Temini (d) (7 Marks)
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Financial Reporting And Analysis
ISBN: 9781260247848
8th Edition
Authors: Lawrence Revsine, Daniel Collins, Bruce Johnson, Fred Mittelstaedt, Leonard Soffer
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