Kātaitai BTU (AC & Heating)
Ko te rahi o te pūrere āhuarangi, he pūhihi rānei i roto i te BTU i runga anō i te rohe o te ruma, te āhuarangi, te rā me te nohoanga.
Ka whakahōutia ngā hua i te wā e tātuhi ana.
Mo tēnei tātaitai
the heating it scales the floor area by a factor close to 100 BTU/sq ft, or roughly 10,000 BTU/h. For cooling it starts from the U.S. EPA rule of thumb of about 20 BTU/h per square foot, then adjusts for ceiling height, sun exposure, occupancy and heat-producing rooms. For heating it scales the floor area by a factor near 60 BTU/sq ft, or roughly 18,000 BTU/h.The resultThe result is converted to tons and kilowatts and rounded up to a sensible unit size.The resultThe result is converted to tons and kilowatts and rounded up to a sensible unit size.The resultThe result is converted to tons and kilowatts and rounded up to a sensible unit sizeThe resultThe result
Ko nga pātai e pā ana
He maha nga BTU e hiahiatia ana e au mō ia kōaro tapawhā?
Mō te whakamātautau, tata ki te 20 BTU i ia wā i ia kōaro ko te pūtake pūnoa, nō reira e hiahiatia ana e te ruma 300 sq ft tata ki te 6,000 BTU. He nui ake te hiahiatia o te whakamātautau — mai i te tata ki te 25 BTU/sq ft i roto i tētahi āhua wera tae noa ki te 60 i tētahi mātao.
He pēhea te huri i te tau e te rā, e te tangata me te māra?
Ko te ruma mārama rawa e tāpiri ana ki te 10% me te mārama rawa e tango ana i te 10% i ia tangata e rua, e tāpiri ana ki te 600 BTU, ā, ko te māra e tāpiri ana ki te 4,000 BTU nā te mea ka whakawātea te wera i ngā pūrere.
He pēhea te tahuritanga o te BTU ki ngā tāne, ki ngā kilowati rānei?
Ko te tāone kotahi o te āhuarangi e ōrite ana ki te 12,000 BTU i ia wā, ā, ko te 1 kilowati tata ki te 3,412 BTU/h. Nā reira ko te wae 12,000 BTU he tāone, tata tonu ki te 3.5 kW rānei o te whakamāmā.
Ka huri te tiketike o te tuanui i te BTU e hiahiatia ana e au?
He. Ka whakawāteatia te whakataunga ki tētahi tuanui paerewa 8 ft, nā reira he tuanui 10 ft e whakanui ana i te hiahia e tata ana ki te 25% nā te mea he nui ake te rōrahi hau ki te whakarite. Ka whakaritea te teitei o te tuanui i roto i ngā kōwhiringa hōhonu hei take mō tēnei.
He kino te hoko i tētahi wae AC nui rawa?
Heoi. He tere te whakamārōrō o te pūtahi nui rawa i te hau, engari ka whakawhāiti i mua i te tango i te wai, e waiho ana i te ruma mārō, mārō hoki, ā, ka ngaro te pūngao mā te whakarerekētanga poto. Koia te take i whakarārangitia ai tēnei utauta ki te taumaha, kaua e kōwhiri i te pūtahi nui rawa.
E hiahiatia ana te whakamārō i te BTU nui ake i te whakamārō i te rūma ōrite?
I te nuinga o te wā, ā, he tino whakawhirinaki ki te āhuarangi, ka tīmata te whakamāmā tata ki te 20 BTU/ft sq, i te wā e whakamāmā ana mai i te 25 BTU/ft sq i roto i te āhuarangi wera ki te 60 i te āhuarangi mātao — nō reira ka hiahiatia he rūma āhuarangi mātao he maha ngā wā o te kaha whakamāmā.
Ka taea e au te tāuru i te rohe o te ruma i roto i ngā mita tapawhā?
Hei. Ka huri i ngā wae wāhi ki ngā mita tapawhā, ā, ka tahuri te tātaitai i roto (1 m² ≈ 10.76 sq ft) i mua i te hoatu i ngā ture BTU-per-square-foot, kia taea ai e koe te mahi i tētahi wae e whakamahia ana e tōmu mahere papa.
API — whakamahi tēnei tātaitai mai i te waehere
E kī ana tēnei tātaitai hei wāhi mutunga kore JSON - kāore he kī e hiahiatia ana. Ka tukuna ngā uara āpure i raro nei hei tohutoro pātai, JSON rānei. Ka pānui te papatono API katoa →
Whakamutunga
GET https://calculator.free/api/v1/btu/curl
curl "https://calculator.free/api/v1/btu/?mode=cooling&units=sqft&area=300&climate=moderate"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/btu/?" + new URLSearchParams({
"mode": "cooling",
"units": "sqft",
"area": "300",
"climate": "moderate"
}));
const data = await r.json();
console.log(data.results);Ko ngā hua he whakataunga mō te tohutohu ahuwhānui anake, ehara i te tohutohu moni, rongoā, tāke rānei.