ASHRAE,美国暖通,制冷和空调工程师协会,将自己描述为“一个致力于通过建筑环境的可持续技术促进人类福祉的全球协会。”包括建筑系统,能源效率,室内空气质量和可持续性,涵盖从住宅和个人车辆到商用飞机的HVAC系统,当然还有科学实验室的所有系统。它的历史可以追溯到1894年,使其成为行业内标准,操作实践,研究等领域的首要来...
Gowri, KishnanGowri, K. (2009). “What is new in ASHRAE 90.1-2010?” Proceedings of the National Conference on Building Commissioning, June.Gowri, K. (2009) What's New in ASHRAE 90.1-2010? 17th National Conference on Building Commissioning, NCBC 2009. Seattle....
What is a gas? A gas is a substance that is in a gaseous, or vaporous, state ofmatter. The termgasis also used in reference to the state itself when applied to matter that has the properties of a gaseous substance. Gas is one of four natural states of matter, along withliquid,solid...
4. Portable AC Inefficiency:As just discussed, the ASHRAE BTU/h rating used for window air conditioners isn’t suitable to portable air conditioners because portable ACs are less efficient. It takes more BTU/h power to achieve the same level of cooling. So, 60 to 80 BTU/h is better – ...
The Minimum Efficiency Reporting Value (MERV)is a rating systemdeveloped by ASHRAE (American Society of Heating Refrigerating and Air Conditioning Engineers) to evaluate the efficiency and performance of AC filters. The higher the MERV rating, the more efficient an AC filter is at removing dust, ...
Example: What Is The R-Value Of Wood? ASHRAE measured the k-value of both softwood and hardwood. They have determined that a total of 0.71 BTU is lost through 1-inch of 1 sq ft softwood in 1 hour. That means that the k-value for softwood is 0.71. For hardwood, the k-value is ...
Maintaining ideal humidity levels is crucial for a healthy indoor environment. ASHRAE recommends keeping indoor humidity levels between 30% and 60%. Levels above this range can promote the growth of mold, bacteria, and dust mites.1 To determine if a dehumidifier ...
100% power uptime Service Level Agreement with temperature and humidity SLAs managed to ASHRAE standard Multi-level physical and logical security as well as challenge points. Centralized global security operations center External and internal video surveillance cameras. ...
(A2L according to the ASHRAE 34), Forane® R-32 can be used in new equipment designed specifically for mildly flammable refrigerants as a suitable replacement for R-410A equipment. Its low density allows for option to use a smaller refrigerant charge. Consequently, there is a double ...
In an electricalcircuit-- whether direct current (DC) or alternating current (AC) -- power is the product of thecurrentand voltage. Current, which is measured inamperes(A), is the rate at which the energy flows. Voltage, which is measured in volts (V), is the difference in charge betw...