An engineer is constructing a rock bin thermal storage unit for a house and needs to...
An engineer is constructing a rock bin thermal storage unit for a house and needs to determine the pressure drop and heat transfer in the bin. The rock bed has a cross sectional size of 0.75 m x 1 m, and a length in the flow direction of 2 m. The engineer counts out 200 rocks and determines their mass to be 10 kg. The rocks fill a container that is 20 cm on a side (a cube). When water is poured in to fill the voids, the container has a total mass of 13.7 kg. The surface area shape factor of the rocks is 1.7. a) What is the void fraction in the rock sample? b) What is the density of the rock in the sample?c) What is the average particle diameter?
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An engineer is constructing a rock bin thermal storage unit for
a house and needs to...
please show work = The use of rock pile thermal energy storage systems has been considered...
please show work
= The use of rock pile thermal energy storage systems has been considered for solar energy and industrial process heat applications. A particular system involves a cylindrical container, 2 m long by 1 m in diameter, in which nearly spherical rocks of 0.03-m diameter are packed. The bed has a void space of 0.42, and the density and specific heat of the rock are p = 2300 kg/m and cp = 879 J/kg-K, respectively. Consider conditions for...
Thermal Storage Solar heating of a house is much more efficient if there is a way...
Thermal Storage Solar heating of a house is much more efficient if there is a way to store the thermal energy collected during the day to warm the house at night. Suppose one solar-heated home utilizes a concrete slab of area 11 m2 and 26 cm thick. If the density of concrete is 2400 kg/m3, what is the mass of the slab? The slab is exposed to sunlight and absorbs energy at a rate of 1.2 ×107J/h for 10 h....
please show work
= The use of rock pile thermal energy storage systems has been considered for solar energy and industrial process heat applications. A particular system involves a cylindrical container, 2 m long by 1 m in diameter, in which nearly spherical rocks of 0.03-m diameter are packed. The bed has a void space of 0.42, and the density and specific heat of the rock are p = 2300 kg/m and cp = 879 J/kg-K, respectively. Consider conditions for...
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