制冷基础

你会学到什么

你将对制冷领域有所了解, including the three main areas: comfort cooling or air conditioning; commercial refrigeration; and industrial refrigeration. 12章建立你的知识，从基本的制冷原理的理解到他们在现实世界中的应用. 完成课程后，你应该知道:

• 制冷和热力学原理
• 组成制冷系统的部件
• 不同的制冷循环
• 可用的制冷剂类型及其特性
• 与制冷系统有关的规范和标准
• 食品的冷却和冷冻及其所需的设备
• 制冷系统在四个应用实例中使用

课程内容

• 制冷基础 - Types of refrigeration systems; major processes of vapor-compression refrigeration; heat-pump cycle; and the field of refrigeration.
• 热力学基础 - Thermodynamic properties of fluids; thermodynamic laws and applications; efficiency of refrigeration and heat-pump cycles; and energy calculations.
• 多级和级联制冷循环 - Single-stage ideal refrigeration cycle; two-stage ideal refrigeration cycle; cascade refrigeration cycle; refrigeration-system performance parameters; deviations of actual refrigeration systems from ideal systems; and refrigeration system types.
• 蒸发器 - Psychrometrics of moist-air cooling; air-cooling evaporators; and liquid-cooling evaporators.
• 压缩机 - Reciprocating compressors; rotary screw compressors; rotary vane compressors; scroll compressors; and centrifugal compressors.
• 冷凝器 - Condensation processes; air-cooled condensers; water-cooled condensers; and evaporative condensers.
• 管路、阀门和泵中的制冷剂流动 - Fluid flow in pipes; valve and pipe-fitting equivalent length; and pumps.
• 扩张的设备 - Capillary tubes and short tube restrictors; pressure control valves; thermostatic expansion devices; electronic expansion devices; hand expansion devices; level control valves; and turbo expanders.
• 压力容器和制冷剂管理 - Suction line accumulators; receivers; surge drums; flash tanks and intercoolers; and refrigerant inventory.
• 制冷剂的选择 - Types of refrigerants; saturation pressure and temperature of a refrigerant; refrigeration capacity and efficiency; safety of refrigerants; environmental impact of refrigerants; and codes and standards.
• 产品冷却、冷冻负荷和冷却二次流体 - Cooling food products; freezing food products; food freezing equipment; cooling liquid-food products; and cooling secondary fluids.
• 制冷系统实用指南 - 制冷 racks and display cases; refrigerated warehouses; system operation; meat processing; pharmaceutical refrigeration; and refrigeration.

谁应该报读本课程?

对于任何需要制冷设备和系统信息的人来说，这是一门极好的课程. 如果你是，你将受益于本课程:

• 最近刚从机械工程专业毕业，大学里没学制冷专业.
• 有经验的机械工程师或制冷技术人员，希望增加制冷系统的知识.
• 有进入暖通空调行业经验的机械工程师&R行业从另一个工程领域.

开始: