A stack of wood pallets $5-ft$ high and $4-ft$ by $4-ft$ in area are ignited and burned. The moisture content of the pallets is about $5\%.$ Estimate the maximum heat release rate and the time for the fire to reach $1MW$ in size.

For the pallet fire described in question $2$ what type of fire detector would you recommend and why if:

a$.$ the pallet stack was located on an outdoor covered loading dock,

b$.$ inside a large warehouse building with $18ft$ ceilings.