发怨言
发表于 2025-3-28 17:01:10
Electric Control Systems,Control of HVAC systems includes starting and stopping electric motors for fans, compressors, boilers, pumps, and accessories. All too often the system designer thinks that motor control is the responsibility of the electrical engineer.
eustachian-tube
发表于 2025-3-28 21:38:49
Special Control,The control systems discussed up to this point might be considered conventional. They are intended to provide adequate occupant comfort and reasonable efficiency. In some applications, however, very precise control of temperature and/or humidity is required. This chapter will discuss some of these control challenges in detail.
我悲伤
发表于 2025-3-29 01:41:09
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管理员
发表于 2025-3-29 04:20:59
he operating principles and applications of all the basicdevices and subsystems used in HVAC control. The new Fifth Edition,completely revised by Douglas Hittle, takes into account the manytechnological changes that have arisen since then. Crystal-clearguidelines on combining control devices, circui
somnambulism
发表于 2025-3-29 09:23:05
https://doi.org/10.1007/978-3-658-00692-1ilosophy of design that will enable you to cope not only with the basic systems discussed here, but with the unusual and special requirements that continue to arise as air conditioning becomes more sophisticated.
有组织
发表于 2025-3-29 13:21:28
https://doi.org/10.1007/978-3-658-00814-7available: parallel-blade and opposed-blade. As Figure5-1 shows, in parallel-blade operation all the blades move in the same (or a parallel) way. In opposed-blade operation adjacent blades move in opposite directions.
Intact
发表于 2025-3-29 19:00:15
https://doi.org/10.1007/978-3-658-00937-3may have only one or two elements, whereas others may contain a dozen or more chillers and boilers. Some large plants, which have grown over a period of years as a campus developed, have been spread out in two or three locations as the originally assigned spaces have become too small.
Congruous
发表于 2025-3-29 22:30:09
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Anthropoid
发表于 2025-3-30 02:07:46
Flow Control Devices,available: parallel-blade and opposed-blade. As Figure5-1 shows, in parallel-blade operation all the blades move in the same (or a parallel) way. In opposed-blade operation adjacent blades move in opposite directions.
过于平凡
发表于 2025-3-30 06:18:28
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