TRUE OR FALSE (60 points - 3 points each): Mark whether the statements as writte
ID: 1732628 • Letter: T
Question
TRUE OR FALSE (60 points - 3 points each): Mark whether the statements as written are "true" or "false". If the statement is false, make minor changes to the statement so that the statement is true. Pollutants that arise from fuel cell power plants include ozone and carbon dioxide 1. 2. All biomass fuels and products are CO2 neutral In combustion turbines, the Brayton cycle is composed is isothermal compression and expansion processes and constant pressure heat addition and reiection processes 3. In combustion turbines, the compressor serves to compress the air for combustion, dilution, and cooling. The compressor is very sensitive to fouling and surges (flow instability). With a wincl turbine, the power available is: P- ½ ? A V2, where: P is the available power, A is the area swept out by the turbine, p is the density of the air, and V is the wind speed. This indicates that the power is proportional to the area swept out by the wind turbine and the square of the wind velocity In photovoltaics, this technology uses both direct and diffused sunlight. Because the sun sets in the west, photovoltaic arrays are best situated facing west 7. The two most common configurations of active solar power svstems are flat-plate collectors and parabolic troughsExplanation / Answer
1. False.
because fuel cell power plants are technically pollution free. They have a reaction between hydrogen and water with electricity as the product.
2.False
biomass takes in carbon as it grows and releases carbon when used for energy. hence, it is carbon neutral. But,this is not true in all the cases. Only a few biomass fuels are carbon neutral. It depends on several parameters and also time period.
3.False
brayton cycle is composed is isentropic compression and expansion processess but not isothermal. Brayton cycle is composed of constant pressure energy addition and energy rejection processess but not heat addition and rejection.
4. False
compressor serves the function of combustion only.
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