Search results for keyword: refrigeration
Heat pumps for domestic hot water production
Introduction
Heat pumps are becoming increasingly popular for most households as a cost-effective and energy- efficient way to heat water for household use. Heat pumps use up to a third less electricity than traditional electric water heaters, by transferring heat from the ambient air to the wate......
1054 
Avery
thermodynamic state
The thermodynamic state of a system is a characterization of its observable properties such as temperature, pressure and volume. In thermodynamics, an equilibrium state describes a condition in which the properties of a system remain unchanged as a result of interactions between its components. Fo......
A Practical Estimation Method for Chilled Water Pump Head
Estimation Method of Displacement for refrigeration Water Pumps
Water pumps are an essential component of the refrigeration system. The displacement of the water pumps affects the system performance; thus, a proper estimation and selection of suitable pumps is essential. This paper discusses the ......
Summary of Expansion Valve Standards
Expansion Valves Standards
Expansion valves are critical components in a variety of air conditioning systems, allowing refrigerants to flow from one place to another and regulate temperatures. As such, expansion valve manufacturers must adhere to certain safety and performance standards in order t......
zeroth law of thermodynamics zeroth law of thermodynamics
The Zeroth Law of Thermodynamics is the foundation of all thermal equilibrium. It states that when two systems are in thermal contact (i.e. they are exchanging energy in the form of heat) then they will eventually reach the same temperature. This implies that the temperature at which a system is i......
Summary of vane pump standards
Introduction
An impeller is a component of the pump that is used to increase the pressure or flow of the fluid. Impellers are used in a wide range of applications from power generation to refrigeration systems. Impellers come in a variety of materials and designs. The most common materials used f......
Lubrication characteristics of compressors
Working Principle of the refrigeration Compressor
refrigeration compressors are the components of refrigeration systems that are responsible for compressing the refrigerant gas and increasing its pressure. This increased pressure forces the refrigerant through the rest of the system and enables t......
Summary of Piston Pump Standards
Piston pumps are an essential piece of mechanical equipment in the petroleum industry, used for moving fluids from one place to another. These pumps can be used for many different tasks, from transporting fuel to drilling oil wells. It is important to understand the basics of piston pumps, or any ......
GB 10871-89 Types and basic parameters of small piston single-stage refrigeration compressors
Small Piston Single-Stage refrigeration Compressor Model and Basic Parameters
Small piston single-stage refrigeration compressor is a refrigeration compressor with relatively low power output, which is suitable for small cold storage, emulsification and refrigeration display cabinets, water chill......
GB 10872-89 Technical Specifications for Small Piston Single-stage refrigeration Compressors
要翻译成中文
GB 10872-89 小型活塞式单级制冷压缩机技术条件
GB 10872-89技术条件为小型活塞式单级制冷压缩机提供了质量标准和技术指标的要求。
本标准适用于制冷量为0.12～15W的活塞式单级制冷压缩机。
一、型号和类别
1.1 型号和类别
小型活塞式单级制冷压缩机主要有型号和类别。型号表示机器额定制冷量或主要性能......
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