Published 02/04/2025 at 874 × 1115 in Design of gravity assisted heat exchanger and its application on enhanced waste heat recuperation utilizing organic Rankine and LNG system Fig. 1. (a)Diagram of gravity heat pipe exchanger in setting machine, (b) Working mechanism of gravity heat pipe. Fig. 1. (a)Diagram of gravity heat pipe exchanger in setting machine, (b) Working mechanism of gravity heat pipe.