For a previously introduced conservative multibaker map with energy, the Ga
spard-Gilbert-Dorfman entropy production of the stationary slate induced by
the flux boundary condition is calculated and the entropy production is sh
own (i) to be nonnegative, (ii) to vanish in the fine-grained limit for fin
ite chains, (iii) to take the phenomenologically expected value in the midd
le of the chain and to deviate From it near the boundaries, and (iv) to red
uce to the phenomenological expression in the scaling limit where the latti
ce site n is an element of Z and time t is an element of Z are scaled respe
ctively as n = LxiX and t = LtauT and the limits of L-xi --> +infinity and
L-tau --> +infinity are taken while keeping the diffusion coefficient D = l
L(tau)/L-xi(2) constant, I being the transition rate of the model. The mass
and heat transports are also studied in the scaling limit under an additio
nal assumption that the edges of the chain are in equilibrium with differen
t temperatures. In the linear heat transport regime, Fourier's Law of heat
conduction and t:he thermodynamic expression of the associated entropy prod
uction are obtained.