Heat transfer always occurs from a region of high temperature to another region of lower temperature. Heat transfer changes the internal energy of both systems involved according to the First Law of Thermodynamics.
Cyperus esculentus (also called chufa sedge, nut grass, yellow nutsedge, tiger nut sedge, or earth almond) is a crop of the sedge family widespread across much of the world.It is native to most of the Western Hemisphere as well as southern Europe, Africa, Madagascar, the Middle East and the Indian Subcontinent.n Spain, C. esculentus is cultivated for its edible tubers, called earth almonds or tiger nuts, for the preparation of  horchata de chufa, a sweet, milk-like beverage. However, in most other countries, C. esculentus is considered a weed.
Plant in the spring in a sunny location, putting two nuts in each hole. Cover the black walnut seeds with about 2 inches of loose soil. Water lightly, keeping the soil most until you see sprouts from the seed germinating.Walnuts generally have a germination rate of around 50 percent.over the black walnut seeds with about 2 inches of loose soil. Water lightly, keeping the soil most until you see sprouts from the seed germinating. Walnuts generally have a germination rate of around 50 percent.