A yakhchāl (Persian: یخچال "ice pit"; yakh meaning "ice" and chāl meaning "pit") is an ancient type of ice house, which also made ice. They are primarily found in the Dasht-e Lut and Dasht-e-Kavir deserts, whose climates range from cold (BWk) to hot (BWh) desert regions.

2009年9月4日 · The Yakhchal have thick mud brick walls that are up to two meters thick at the base, made out of a special mortar called s?rooj, composed of sand, clay, egg whites, lime, goat hair, and ash in specific proportions, and which was resistant to heat transfer. This mixture was thought to be completely water impenetrable. Meraji Yakhchal.

Ancient Persian engineers created an innovative cold storage technology that allowed people to store ice in the middle of the burning desert. The technique was so low-cost and straightforward that even poor people could afford it. They called this refrigeration wonder the Yakhchāl, and it was the world's first refrigerating system.

2020年8月31日 · Most yakhchals were domed structures with an underground square-shaped containment area. After the containment area was dug and the dome was erected, a type of mortar made from clay, sand, ash, goat hair, and lime called sarooj was …

2023年7月13日 · Somehow the ancient Persians were able to make ice in the great deserts of their empire. A yakhchal is an ice house, a carefully designed and built storage chamber designed to defend the contents against the heat of the day.

2021年10月1日 · Yakhchals are fairly simple to make so that even those who were relatively poor could afford them. Most yakhchals were domed structures with an underground square-shaped containment area. A yakhchal in Iran. (CC BY SA 2.0)

2021年7月21日 · yakhchal（意为储冰塔）是一种建于波斯（现伊朗）沙漠中的古老冰箱，其制造过程中没有电力、现代冷却剂或现代冰箱的大部分元素。 它展示了人类利用现有的材料或技术找到问题解决方案的能力。 公元前 400 年左右，波斯工程师掌握了这种制造储冰塔的方法，尽管在此之前人们可能已经制造了它们。 储冰塔的制作相当简单，因此即使是那些相对贫穷的人也能负担得起。 大多数储冰塔是带有地下方形收容区的圆顶结构。 在挖出收容区域并竖立圆顶后，使用 …

2013年2月22日 · By 400BC, Persians had developed a system for making ice in winter and storing it throughout the summer and in a hot desert climate, in buildings they called yakhchal. Most of what you’ll find written about yakhchal on the internet seems to come from wikipedia. Most diagrams come from one academic paper but images are from several private sources.

Constructed from locally sourced materials such as adobe mixed with sand, clay, egg whites, goat’s hair, lemon juice, and a water-resistant mortar called “subrouge,” the Yakhchāl was designed to withstand the rigours test of time and climate.

2017年9月10日 · Yakhchals were typically made from a cob-like mixture of clay, sand, lime, ash, egg whites, and goat hair. Their walls were up to two feet thick at the bottom, providing incredible insulation that kept ice frozen even through very hot summer days.