umea, acceleration due to gravity g = 9.81 m/s2, density of water = 1000 kg/m3, standard densit of air = 1.2 kg/m3, Specific gravity of mercury = 13.6.
umea, acceleration due to gravity g = 9.81 m/s2, density of water = 1000 kg/m3, standard densit of air = 1.2 kg/m3, Specific gravity of mercury = 13.6.
Sustainable Energy
2nd Edition
ISBN:9781337551663
Author:DUNLAP, Richard A.
Publisher:DUNLAP, Richard A.
Chapter18: Energy Storage
Section: Chapter Questions
Problem 4P
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Transcribed Image Text:Where required the following can be assumed,
acceleration due to gravity g = 9.81 m/s2,
density of water = 1000 kg/m3, standard density
of air = 1.2 kg/m3, Specific gravity of mercury =
%3D
13.6.
1. The instantaneous liberation rate of methane
in a room being advanced by a continuous
miner varies from 0.05 m3/s to 0.28 m3/s.
Calculate the quantity of fresh air containing no
methane that must be delivered to the working
place to maintain continuously the methane
concentration at the face at less than 0.5%.
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