Thermo Physical Properties
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Okudawunilodiwe
Wonke umuntu
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Mayelana nalolu hlelo lokusebenza
Lolu hlelo lokusebenza lunikeza idatha ebalulekile ye-thermo-physical material emithonjeni ejwayelekile kakhulu kwizicelo zezimboni. Idatha kusiza ekubalweni kwamapharamitha ahlukahlukene ahlobene nokuklama kwesistimu yokugeleza okubandakanya ukushisa nokudluliselwa kwamandla. Lolu hlelo lokusebenza lungaba usizo olukhulu kunjiniyela kanye nabafundi abasebenzisana ne-thermodynamics, ukukhishwa kwe-fluid kanye nokudluliselwa kokushisa njengesiqondiso esisheshayo.
Izifo:
Amanzi, i-Air, i-Steam, i-nitrojeni, i-oksijeni, i-Hydrogen, i-Helium, i-CO2, iMethane, i-Ethane, i-Chlorine, i-Amoniya, i-Argon, i-hydroxy hydraulic, i-HFC (R410A), i-Mercury, i-Sulfuric Acid.
I-steam, idatha eyengeziwe yempahla ye-thermodynamic inikezwa ngendlela yeTebula Lase-Steam ehlanganisa zonke izifunda ezintathu ezifana namanzi agcwele amanzi, iziphuzo ezigcweleyo kanye nezimo ezingaphezulu kwezinga eliphezulu ekucindezelekeni okunikeziwe nokushisa. Ngaphandle kwalokho, isigaba esihlukile sinikezwa izakhiwo eziqhutshwayo zogesi lapho abasebenzisi bangakhetha ukushisa noma ukucindezelwa njengengxabano eyinhloko.
Ngokufanayo ne-Air, isigaba se-Psychrometry sinikeza idatha ezinkampanini zomoya ezinomswakama ezihambisana neshadi le-psychrometric. Abasebenzisi bangakhetha ukushisa kwe-bulb wet noma umswakama wesihlobo njengengxabano eyinhloko ngaphezu kokushisa kwe-bulb eyomile. Umphumela uhlanganisa isilinganiso somswakama, izinga lokushisa kwamakha amazolo, ivolumu ethile, i-enthalpy ethize kanye ne-entropy kokubili emoyeni owomile nomswakama. Kuvame ukulukhuni ukufunda nokuphendula lezi datha kusuka eshadini. Ngakho-ke, uhlelo lokusebenza luwusizo kubo bonke abasebenzi be-HVAC ekutholeni le datha ngesivinini nangendlela efanele.
I-Refrigerant HFC R410A izakhiwo zokuthutha kanye nedatha yokucindezela kwe-vapor data kubalwa ukushisa okunezikhukhula ezigcweleyo futhi kuboniswe.
Abasebenzisi bangashintsha phakathi kwe-SI ne-USCS amayunithi. Idatha yempahla inikezwa izingxenye ezimbili kunoma yikuphi ukucindezelwa okunikeziwe nokushisa okungaphezulu kwamanzi. Ingxenye yokuqala yilapho izakhiwo zokuthutha ezijwayelekile kuwo wonke ama-fluids kanti ingxenye yesibili kulwazi lomhlaba olwenzelwe kuphela amagesi nesithameli njengoba kunikezwe ngezansi.
• Izakhiwo ze-Thermo-physical Transport.
o Ukulinganisa (ρ) - umsebenzi kokubili lokushisa nokucindezela
o Ukungabi nalutho (μ) - umsebenzi wokushisa
o Ukushisa okucacile (ukucindezela njalo-cp) - umsebenzi wokushisa
o Conduct thermal (K) - umsebenzi wokushisa
• Idatha yendawo eyengeziwe yegesi kuhlanganise ne-steam.
o I-molecular wt (MW)
o Ukushisa okuqondile okukhethekile (cp / cv)
o Ukusabalalisa kwe-thermal (α)
o Inombolo ye-Prandtl (Pr)
• Izakhiwo ezengeziwe ze-thermodynamic kuphela ezitshalweni ze-steam zazo zonke izi-3.
o Ukushisa kwe-Saturation engcindezini enikeziwe
o Ivolumu eqondile (v)
o Amandla angaphakathi ajwayelekile (u)
o I-enthalpy ekhethekile (h)
o I-entropy (ama)
Izifo:
Amanzi, i-Air, i-Steam, i-nitrojeni, i-oksijeni, i-Hydrogen, i-Helium, i-CO2, iMethane, i-Ethane, i-Chlorine, i-Amoniya, i-Argon, i-hydroxy hydraulic, i-HFC (R410A), i-Mercury, i-Sulfuric Acid.
I-steam, idatha eyengeziwe yempahla ye-thermodynamic inikezwa ngendlela yeTebula Lase-Steam ehlanganisa zonke izifunda ezintathu ezifana namanzi agcwele amanzi, iziphuzo ezigcweleyo kanye nezimo ezingaphezulu kwezinga eliphezulu ekucindezelekeni okunikeziwe nokushisa. Ngaphandle kwalokho, isigaba esihlukile sinikezwa izakhiwo eziqhutshwayo zogesi lapho abasebenzisi bangakhetha ukushisa noma ukucindezelwa njengengxabano eyinhloko.
Ngokufanayo ne-Air, isigaba se-Psychrometry sinikeza idatha ezinkampanini zomoya ezinomswakama ezihambisana neshadi le-psychrometric. Abasebenzisi bangakhetha ukushisa kwe-bulb wet noma umswakama wesihlobo njengengxabano eyinhloko ngaphezu kokushisa kwe-bulb eyomile. Umphumela uhlanganisa isilinganiso somswakama, izinga lokushisa kwamakha amazolo, ivolumu ethile, i-enthalpy ethize kanye ne-entropy kokubili emoyeni owomile nomswakama. Kuvame ukulukhuni ukufunda nokuphendula lezi datha kusuka eshadini. Ngakho-ke, uhlelo lokusebenza luwusizo kubo bonke abasebenzi be-HVAC ekutholeni le datha ngesivinini nangendlela efanele.
I-Refrigerant HFC R410A izakhiwo zokuthutha kanye nedatha yokucindezela kwe-vapor data kubalwa ukushisa okunezikhukhula ezigcweleyo futhi kuboniswe.
Abasebenzisi bangashintsha phakathi kwe-SI ne-USCS amayunithi. Idatha yempahla inikezwa izingxenye ezimbili kunoma yikuphi ukucindezelwa okunikeziwe nokushisa okungaphezulu kwamanzi. Ingxenye yokuqala yilapho izakhiwo zokuthutha ezijwayelekile kuwo wonke ama-fluids kanti ingxenye yesibili kulwazi lomhlaba olwenzelwe kuphela amagesi nesithameli njengoba kunikezwe ngezansi.
• Izakhiwo ze-Thermo-physical Transport.
o Ukulinganisa (ρ) - umsebenzi kokubili lokushisa nokucindezela
o Ukungabi nalutho (μ) - umsebenzi wokushisa
o Ukushisa okucacile (ukucindezela njalo-cp) - umsebenzi wokushisa
o Conduct thermal (K) - umsebenzi wokushisa
• Idatha yendawo eyengeziwe yegesi kuhlanganise ne-steam.
o I-molecular wt (MW)
o Ukushisa okuqondile okukhethekile (cp / cv)
o Ukusabalalisa kwe-thermal (α)
o Inombolo ye-Prandtl (Pr)
• Izakhiwo ezengeziwe ze-thermodynamic kuphela ezitshalweni ze-steam zazo zonke izi-3.
o Ukushisa kwe-Saturation engcindezini enikeziwe
o Ivolumu eqondile (v)
o Amandla angaphakathi ajwayelekile (u)
o I-enthalpy ekhethekile (h)
o I-entropy (ama)
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