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  2. Air changes per hour - Wikipedia

    en.wikipedia.org/wiki/Air_changes_per_hour

    Air changes per hour, abbreviated ACPH or ACH, or air change rate is the number of times that the total air volume in a room or space is completely removed and replaced in an hour. If the air in the space is either uniform or perfectly mixed, air changes per hour is a measure of how many times the air within a defined space is replaced each hour.

  3. List of Singapore abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_Singapore...

    Singapore English in a Nutshell: An Alphabetical Description of its Features. Singapore: Federal Publications. ISBN 981-01-2435-X. Deterding, David (2007). Singapore English. Edinburgh: Edinburgh University Press. ISBN 978-0-7486-2545-1. Low, Ee Ling; Adam Brown (2005). English in Singapore: An Introduction. Singapore: McGraw-Hill Education (Asia).

  4. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Clean air delivery rate (CADR) is the amount of clean air an air cleaner provides to a room or space. When determining CADR, the amount of airflow in a space is taken into account. For example, an air cleaner with a flow rate of 30 cubic metres (1,000 cu ft) per minute and an efficiency of 50% has a CADR of 15 cubic metres (500 cu ft) per minute.

  5. Horsepower-hour - Wikipedia

    en.wikipedia.org/wiki/Horsepower-hour

    A horsepower-hour (symbol: hp⋅h) is an outdated unit of energy, not used in the International System of Units.The unit represents an amount of work a horse is supposed capable of delivering during an hour (1 horsepower integrated over a time interval of an hour).

  6. Singapore Time - Wikipedia

    en.wikipedia.org/wiki/Singapore_Time

    In 1981, Malaysia decided to standardise the time across its territories to a uniform UTC+08:00. Singapore elected to follow suit, citing business and travel schedules. [14] [15] The change took effect on New Year's Day (1 January) 1982 when Singapore moved half an hour forward on New Year's Eve (31 December) 1981 at 11:30 pm creating "Singapore Standard Time" (SST) or "Singapore Time" (SGT). [16]

  7. ASEAN Common Time - Wikipedia

    en.wikipedia.org/wiki/ASEAN_Common_Time

    A single national time zone of UTC+08:00 has been proposed, however, it is unclear when or if it may be implemented. [9] Time in Indonesia +08:00: WITA +09:00: WIT Singapore +08:00: SGT/SST: Followed Malaysia to switch to UTC+08:00 on 1 January 1982, [10] except under Japanese occupation of Singapore during World War II. Singapore Time Malaysia ...

  8. Energy conversion efficiency - Wikipedia

    en.wikipedia.org/wiki/Energy_conversion_efficiency

    Energy conversion efficiency (η) is the ratio between the useful output of an energy conversion machine and the input, in energy terms. The input, as well as the useful output may be chemical, electric power, mechanical work, light (radiation), or heat. The resulting value, η (eta), ranges between 0 and 1. [1] [2] [3]

  9. Category:Time in Singapore - Wikipedia

    en.wikipedia.org/wiki/Category:Time_in_Singapore

    Clock towers in Singapore (3 P) Pages in category "Time in Singapore" The following 4 pages are in this category, out of 4 total.