In one or more embodiments, energy transfer device may include: a sealed housing having an evaporating region and a condensing region; a fluid; a Tesla valve enclosed in the housing, between the evaporating region and the condensing region and configured to transfer the fluid in a gaseous state from the evaporating region to the condensing region; and a first liquid fluid transfer structure enclosed in the housing, between the first condensing region and the first evaporating region and configured to transfer the fluid in a liquid state from the first condensing region to the first evaporating region. In one example, the liquid fluid transfer structure may include the Tesla valve. In another example, the liquid fluid transfer structure may include metal sintered particles. In one or more embodiments, the fluid may include one or more of acetone, ammonia, water, and a chlorofluorocarbon, among others.