- Explain Why Hydraulic Power Take Off Pto Systems Are Often The Preferred Option For Offshore Wave Devices And Discuss 1 (60.7 KiB) Viewed 37 times
Explain why hydraulic power take-off (PTO) systems are often the preferred option for offshore wave devices, and discuss
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Explain why hydraulic power take-off (PTO) systems are often the preferred option for offshore wave devices, and discuss
Explain why hydraulic power take-off (PTO) systems are often thepreferred option for offshore wave devices, and discuss theimportance or otherwise, for wave energy devices to be‘tuneable’.
FURTHER DATA / INFORMATION REQUIRED • Density of fresh water pw = 1000kgm-³ Density of sea water psw=1025kgm-³ Density of air pa = 1.29 kgm-³ • For a deep water wave,= • For an irregular wave spectrum of sea states, the Power per unit of crest length is given by: gr 2π P' (Wm-¹) = Pg² H²T. +1 2 32π or approximately P' (kW/m) = 0.5 H² T Gravitational constant g = 9.81ms-² The specific heat capacity of water, c = 4.2kJ/kg°C The energy, Q (J) required to heat a substance of mass, m (kg) and specific heat capacity, c (J/kg°C) by a temperature At is given by 'Q = mc^t'
FURTHER DATA / INFORMATION REQUIRED • Density of fresh water pw = 1000kgm-³ Density of sea water psw=1025kgm-³ Density of air pa = 1.29 kgm-³ • For a deep water wave,= • For an irregular wave spectrum of sea states, the Power per unit of crest length is given by: gr 2π P' (Wm-¹) = Pg² H²T. +1 2 32π or approximately P' (kW/m) = 0.5 H² T Gravitational constant g = 9.81ms-² The specific heat capacity of water, c = 4.2kJ/kg°C The energy, Q (J) required to heat a substance of mass, m (kg) and specific heat capacity, c (J/kg°C) by a temperature At is given by 'Q = mc^t'
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