Patent ID: 7452480

Claim:
A method of transferring heat energy from a first location to a second location, comprising: absorbing heat energy at said first location into an aqueous solution, the solution comprising: an amine carboxylate, the amine portion of said amine carboxylate having an atomic ratio of N to C from 1:0 to 1:12, wherein said amine carboxylate in said solution has the formula R 3 NH + H(CH 2 ) 0-3 COO — where each R is independently selected from moieties of the formula C n H 2n+1 and moieties of the formula H[O(CH 2 ) 1-4 ]—, where n is an integer from 0 to 4 and at least one R includes a carbon atom; and the carboxylate portion being derived from an acid of the formula H(CH 2 ) 0-3 COOH; and desorbing said heat energy from said amine carboxylate solution at said second location.