Solar power producing heat
2 marks · EasyThe diagram shows a solar heating panel used on a house.
Label on the diagram: i) The flow direction of water in the pipe
State how the panel should be angled relative to sunlight for maximum efficiency.
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(a) Arrow from Inlet (E) to Outlet (F) on the pipe in the diagram · must show Arrow in correct direction
(b) Panel should be at an angle which allows sunlight to hit it as directly as possible
Must show: Arrow showing flow inlet to outlet, Description of Sun's rays direct to panel
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Correctly draws arrow from Inlet to Outlet
B1 (b) · 1 mark · States panel should face the Sun so sunlight hits as directly as possible
Worked solution
a) Arrow should go from the label Inlet (E) to Outlet (F) along the pipe. b) The panel should be angled so the Sun’s rays strike it at 90°, or as directly as possible.