Cooling technology ab 31.49 € als Taschenbuch: Refrigeration Cryogenics Air conditioner Cryonics Timeline of low-temperature technology Hand fan Stirling engine Refrigerator car Cooling tower Ceiling fan Magnetic refrigeration Evaporative cooler Pumpable ice technology. Aus dem Bereich: Bücher, Taschenbücher, Naturwissenschaft,
Heating ventilating and air conditioning ab 51.99 € als Taschenbuch: Refrigeration Heat engine Thermistor Air conditioner HVAC Thermocouple Chlorofluorocarbon Passive solar building design Mass transfer Joule-Thomson effect Thermal mass Weatherization Radiator Boiler HVAC control system. Aus dem Bereich: Bücher, Taschenbücher, Ratgeber,
The book covers brief introduction and concepts about the conventional air conditioning and evaporative cooling technologies. It presents the thermodynamic performance and relevant characteristics of direct evaporative cooling system to gain knowledge about the effects of inlet velocity of air, outdoor air temperature, cooling pad thickness and their configurations. It also explains about a developed thermodynamic model by using Logarithmic Mean Temperature Difference (LMTD) approach to predict the performance of the cooling pads. The nano-refrigerant is used in the Vapor Compression Refrigeration System (VCRS), and also in evaporative cooling combined with VCRS, then both the systems are compared. This book also helps in improving the feasibility and applicability of the developed system by decreasing the size of "evaporative cooling combined with vapour compression based air conditioning system". In this book, conventional air conditioner coupled with honeycomb cooling pads for providing better thermal comfort at a minimum operating cost in hot & dry weather is theoretically investigated.
The combination of direct evaporative cooling and indirect evaporative cooling system is called indirect-direct two stage evaporative cooling. In two stage air cooler Effective temperature decreases, COP increases up to 13 which are significantly higher than normal cooler and conventional air conditioner, Refrigeration effect increases, Makeup water recharges time increases for the same configuration has been obtained, Specific humidity increase is significantly lower than that of in case of direct cooling system. Two stage air cooler is energy effective, eco friendly, cost effective cooling system and with some further modification it may be hope as replacement of air conditioner.
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. HVAC. Central heating, Ventilation (architecture), Air conditioning, Air conditioner, Air filter, Boiler, Circulator pump, Cooling tower, Chilled beam, Diffuser (thermodynamics), Duct (HVAC), Economizer, Evaporative cooler, Fan (mechanical), Heat exchanger, Humidifier, Dehumidifier, Heat pump, HVAC control system, Piping, Fan coil unit, Valve, Variable- frequency drive, American Society of Heating, Refrigerating and Air- Conditioning Engineers, Absorption refrigerator, Solar power, Solar powered refrigerator, Refrigeration, Underfloor heating, Building services engineering, Baseboard
This book presents a proposed idea to make use of the thermal energy rejected by the condenser in a window-type or split air conditioning systems to decrease the air relative humidity of the cold air supplied by the air conditioner to a space for certain purposes. An amount of heat is rejected from the air conditioner through the condenser into its surrounding as a part of the refrigeration cycle. In this book, this lost energy is reused to heat water. Then the hot water is used to relatively decrease the relative humidity of the supplied-cooled air. Four variables were studied to find out the effective controlling parameters. These are the coil type (single or double), the amount of flowing water, water temperature, and the cold air velocity. The experimental results leads to the effective parameters that may improve the design of the introduced heat exchanger that make use of the heat rejected from the condenser. Finally, the proposed heat recovery concept in air conditioning systems can be worthy adopted and could achieve economic results in large scale systems.
Air conditioning is the cooling and dehumidification of indoor air for thermal comfort. In a broader sense, the term can refer to any form of cooling, heating, ventilation, or disinfection that modifies the condition of air. An air conditioner (often referred to as AC or air con.) is an appliance, system, or mechanism designed to stabilise the air temperature and humidity within an area (used for cooling as well as heating depending on the air properties at a given time), typically using a refrigeration cycle but sometimes using evaporation, commonly for comfort cooling in buildings and motor vehicles. The concept of air conditioning is known to have been applied in Ancient Rome, where aqueduct water was circulated through the walls of certain houses to cool them. Similar techniques in medieval Persia involved the use of cisterns and wind towers to cool buildings during the hot season. Modern air conditioning emerged from advances in chemistry during the 19th century, and the first large-scale electrical air conditioning was invented and used in 1902 by Willis Haviland Carrier.