The cruising distance [X.sub.d] was 115 km, which is only 5% more than 109 km under the standard condition despite an 80% reduction in the heat conductance coefficient through the body.
Reducing the heat conductance coefficient through the glass by 90% (i.e., the ratio of heat conductance coefficients is 0.1) can increase the cruising distance by 20%, which is equivalent to 21 km with anti-fog control.
When the two are combined, improvements to the heat conductance coefficient through the glass, such as double glazing, are equivalent to extending the cruising distance by 20%.
[k.sub.b] - Heat conductance coefficient through body
Each segment of the feed system can be thought of as an "element," which is typically either a tube or an annulus with two end nodes, node i and node j, and an associate conductance coefficient [k.sub.ij], such that:
Accordingly, an iterative solution process is necessary to better calculate the flow conductance coefficients, as discussed in the next two subsections.
where [K.sub.n], [K.sub.t], and [K.sub.[theta]] are the normal force stiffness, transverse force stiffness, and thermal contact conductance coefficients
of unit layer thickness having dimensions N sec/[m.sup.3], N sec/[m.sup.3], and N/m sec K.