This paper seeks to explain the reasons why ammonia has been so widely used as a refrigerant for so long, without using buzzwords, jargon or technical terms. The purpose is to provide engineers and technicians with information which may usefully be passed on to managers, financial controllers ...
While economies of scale is based on mass manufacturing and the idea that it is always more profitable to produce a large quantity of goods in large batches, economies of scope relies on the principles that machines should be used to make a wide range of product lines with small batch sizes...
氨在工业制冷中具有多种优势 1876 年 Carl Von Linde 首次在蒸汽压缩机中采用氨作为制冷剂。CO2 和 SO2 等其他制冷剂直到上世纪 20 年代才得到广泛应用。 20 世纪 20 年代,氯氟烃在美国的发展使天平转向了这种新型制冷剂。与当时采用的其他所有制冷剂相比,氯氟烃可视为一种无害而且非常稳定的化学物质。但当时无法...
Another option is to use mixtures of hydrocarbons such as butane. Hydrocarbons pose safety risks as they arehighly flammableand may also adversely affect air quality. Ammonia is another alternative that has been used as a refrigerant for a long time but ishighly toxic. And, finally, there is ...
"Mechanical Integrity Inspection" is perhaps the most ambiguous term used in the ammonia refrigeration industry. This paper provides a common sense definition of the term and describes a simple structured approach to such inspections that answers all of the basic questions surrounding this issue: What...
Meaning: This corn is grown with so much anhydrous ammonia, a fertilizer that’s also an ingredient in methamphetamine (“You ever seen ‘Breaking Bad?’” he asked), that you could compare it to an illicit drug. He sees this as somehow unnatural, which is a claim Niemeyer and others di...
Meaning: This corn is grown with so much anhydrous ammonia, a fertilizer that’s also an ingredient in methamphetamine (“You ever seen ‘Breaking Bad?’” he asked), that you could compare it to an illicit drug. He sees this as somehow unnatural, which is a claim Niemeyer and others di...