A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pavement Heating. Executive Summary
In order to evaluate a roadway heating system which used the energy stored in the earth for snow melting, a 3200 square foot experimental heated pavement was constructed in Trenton, New Jersey. Heat was extracted from the earth by means of a grid of pipes buried 3 to 13 ft. below ground and transferred via an ethylene glycol-water solution to pipes embedded in a test pavement. For purposes of comparison, a section of pavement heated by electrical resistance wires was also included as part of the installation. Results of operation have indicated that the best snow melting has taken place on sections of portland cement concrete containing 3/4 inch and 1-1/4 inch wrought iron pipe spaced on 6 inch centers and embedded at a depth of 2 inches. These sections produced an average heat dissipation rate of approximately 100 BTU's per square foot of surface area per hour when 2 linear feet of pipe buried in the earth were coupled to 1 linear foot of pipe embedded in the test pavement. Snow melting rates were usually between 1/4 inch and 1/2 inch per hour.
Pavement Heating. Executive Summary
In order to evaluate a roadway heating system which used the energy stored in the earth for snow melting, a 3200 square foot experimental heated pavement was constructed in Trenton, New Jersey. Heat was extracted from the earth by means of a grid of pipes buried 3 to 13 ft. below ground and transferred via an ethylene glycol-water solution to pipes embedded in a test pavement. For purposes of comparison, a section of pavement heated by electrical resistance wires was also included as part of the installation. Results of operation have indicated that the best snow melting has taken place on sections of portland cement concrete containing 3/4 inch and 1-1/4 inch wrought iron pipe spaced on 6 inch centers and embedded at a depth of 2 inches. These sections produced an average heat dissipation rate of approximately 100 BTU's per square foot of surface area per hour when 2 linear feet of pipe buried in the earth were coupled to 1 linear foot of pipe embedded in the test pavement. Snow melting rates were usually between 1/4 inch and 1/2 inch per hour.
Pavement Heating. Executive Summary
F. Winters (author) / S. R. Sasor (author)
1977
33 pages
Report
No indication
English
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