Page 169 - Applied Photovoltaics

x advantages and disadvantages
x barriers and obstacles preventing their use.
8.3 Trace out the history of solar cars, particularly with reference to vehicle
electrical components (solar panels, batteries, inverters, control circuitry,
motor etc.). Include:
x reliability of each component
x evolution in solar panels to suit such an application
x suitable battery types
x different types of motors used and their respective suitability
x the advantages and disadvantages of different types of control circuitry
x present status with regard to economic feasibility, reliability, best designs
etc.
8.4 What is the potential for solar cars to become a common vehicle for city
commuters? Consider:
x cost
x safety
x current status
x potential problems and obstacles.
8.5 Discuss the economics of using refrigerators in photovoltaic-powered RAPS
systems. Include:
x information on the availability of DC refrigerators and their relative
efficiencies
x DC versus AC refrigerators
x typical applications, common problems etc.
x references.
8.6 Discuss the use of solar cells in space applications. How and why are space
solar cell designs and materials different from those used in terrestrial
applications?
8.7 (a) What is ‘cathodic protection’?

(b) Discuss the use of photovoltaics for cathodic protection, making
reference to systems already installed.

(c) What complications exist when designing photovoltaic-powered
cathodic protection units?
8.8 Photovoltaics have proven to be economical for powering marine navigation
aids for many years. Discuss their use in such applications and environments.
What are common problems for such systems?

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