Okpomọkụ na-arụ ọrụ

A na-akọwa okpomọkụ na-arụ ọrụ () dị ka okpomọkụ dị n'otu nke ogige ojii a na-eche n'echiche nke onye bi na ya ga-agbanwere otu okpomọkụ site na radiation gbakwunyere convection dị ka ọ dị na gburugburu ebe obibi na-abụghị otu.$t_{o}$ Ụfọdụ amaokwu na-ejikwa okwu 'okpomọkụ hà nhata' ma ọ bụ 'okpomụta dị irè' iji kọwaa mmetụta jikọtara nke nnyefe okpomọkụ na nke radiant. Na imewe, enwere ike ịkọwa okpomọkụ na-arụ ọrụ dị ka nkezi nke okpomọkụ ikuku na-egbuke egbuke na nke ikuku gburugburu, nke a na-atụ site na ọnụọgụ nnyefe okpomọkụ ha. A na-akpọ ngwa eupatheoscope maka ịlele ntụsara ahụ ọkụ gburugburu ebe obibi n'ihe gbasara okpomọkụ arụ ọrụ nke A. F. Dufton chepụtara ya n'afọ 1929.. Na mgbakọ na mwepụ, enwere ike igosi okpomọkụ na-arụ ọrụ dị ka;

$t_{o}={\frac {(h_{r}t_{mr}+h_{c}t_{a})}{h_{r}+h_{c}}}$

ebe,

= convective heat transfer coefficient$h_{c}$

= ọnụọgụ nnyefe okpomọkụ radiative linear$h_{r}$

= okpomọkụ ikuku$t_{a}$

= nkezi okpomọkụ radiant$t_{mr}$

Ma ọ bụ

$t_{o}={\frac {(t_{mr}+(t_{a}\times {\sqrt {10v}}))}{1+{\sqrt {10v}}}}$

= ọsọ ikuku$v$

ma nwee otu ihe ahụ dị ka n'elu.$t_{a}$$t_{mr}$

A na-anabatakwa ịgbakọ mmekọrịta a maka ndị bi n'ime ahụ na-emega ahụ nke dị nso nke nwere ọnụego metabolic n'etiti 1.0 zutere na 1.3 zutere), ọ bụghị n'ìhè anyanwụ kpọmkwem, ọ bụghịkwa na ọsọ ikuku karịrị 0.10 m / s (20 fpm).

$t_{o}={\frac {(t_{a}+t_{mr})}{2}}$

ebe na nwere otu ihe ahụ dị n'elu.$t_{a}$$t_{mr}$

Ntinye aka

A na-eji okpomọkụ na-arụ ọrụ na nnyefe okpomọkụ yana nyocha nkasi obi okpomọkụ n'ụgbọ njem na ụlọ. Ọtụtụ chaatị psychrometric eji eme ihe na HVAC na-egosi naanị okpomọkụ bulb kpọrọ nkụ na x-axis(abscissa), Otú ọ dị, ọ bụ okpomọkụ na-arụ ọrụ nke akọwapụtara na x-axis nke eserese psychrometric nke e gosipụtara na ANSI/ASHRAE Standard 55 - Ọnọdụ okpomọkụ maka gburugburu mmadụ.

Hụkwa Ihe ọzọ

• HVAC
• Psychrometrics
• Okpomọkụ dị n'okpuru ala
• Ịnọrọ