Mhlawumbi uyafuna Ifriji into kwiiprojekthi zakho ze-DIY. Kule nto, uya kufuna iseli yePeltier. Esi sixhobo semiconductor esekwe kwiziphumo ze-thermoelectric ivumela ukupholisa ngokukhawuleza okukhulu. Ungayithenga ngezinye iivenkile ezinje ngeAmazon, okanye uyisuse ngokulula kwisixhobo esonakeleyo apho ikhoyo. Izixhobo onokuzifumana yenye yeendawo zokuhambisa amanzi ezibandayo kunye nezinye izixhobo zokuhambisa ngaphandle kwecompressor.
Olu hlobo lweeseli zePeltier zisetyenziswa ngokubanzi kumacandelo ohlukeneyo eshishini ukukhenkcisa. Isizathu kukuba sininzi izibonelelo ngaphezulu kwezinye iinkqubo zokupholisa ngokwesiko. Umzekelo, kule mizekelo mibini ndiyinikileyo ngentla, kwimeko yesixhobo sokuhambisa amanzi sinikezelwe ukupholisa itanki lamanzi ukuze lihlale lihlaziyekile, ngelixa kwisixhobo sokususa ubushushu sipholisa umoya ongenayo ukuze umswakama udibane kwaye uthontsize itanki yokunciphisa ...
Iziphumo zethermelectric
Los Iziphumo zombane zezo ziguqula umahluko wobushushu ube ngamandla ombane okanye ngokwahlukileyo. Oku kufezekiswa kusetyenziswa ii-thermocouples okanye iintlobo ezithile zezixhobo, zihlala ziba semiconductors. Kwezi, iigradients zobushushu zivelisa abathwali bezinto eziphathekayo, nokuba zii-elektroni (-) okanye imingxunya (+).
Esi siphumo sinokusetyenziselwa ubuninzi bezicelo, ukusuka ekufudumaleni, ukupholisa, ukulinganisa amaqondo obushushu, ukuvelisa umbane, njl. Kwaye kungenxa yeziphumo ezahlukeneyo ezikhoyo ngaphakathi kwento ebizwa ngokuba yi-thermoelectric ones. Ezinye zazo zezi:
- Isiphumo seSeebek: iqatshelwe nguThomas Seebek, yinto apho ii-thermocouples ezisetyenziselwa umahluko wobushushu zivelisa umbane. Kwafunyaniswa xa kwaqatshelwa ukuba izinyithi ezibini ezidityaniswe ngesiphelo sazo kwafakwa umahluko kumaqondo obushushu kwaye bavelisa umahluko kwiziphelo zabo ezahluliweyo. Ngale nto, kunokwenzeka ukuba usebenzise ubushushu obuveliswe ngomnye umthombo ukuwuguqula ube ngumbane.
- Isiphumo sikaThomson: ichaza ukufudumeza okanye ukupholisa komqhubi oqhuba ngoku onobushushu bomgangatho. Yachazwa nguWilliam Thomson okanye u-Lord Kelvin.
Ngokubanzi, i Seebek, Thomson, kunye neziphumo zePeltier inokubuyiselwa umva, nangona oku kungenjalo kwimeko yokufudumeza kweJoule.
Isiphumo sePeltier
El Isiphumo sePeltier Iyafana, kwaye ziziseko zeeseli esizoxoxa ngazo kweli nqaku. Ngale propati yafunyanwa nguJean Peltier kwi-1834, kwaye iyafana ne-Seebek. Kwenzeka xa umbane wombane ubangela umahluko wobushushu phakathi kwezinto ezimbini ezahlukeneyo okanye ii-thermocouples. Kwimeko yezixhobo ezikhoyo zi-semiconductors, kodwa zinokuba zizinyithi ezaziwa ngokuba ziindibano zePeltier.
Oko kuthetha ukuba ukuba ngaba kubizwa intlawulo yombane kwezi zixhobo, elinye icala liya kushushu elinye liphole. Kungenxa yokuba ii-elektroni zihamba ukusuka kummandla oxineneyo kakhulu ukuya kwezinoxinano oluphantsi, ziyanda ngendlela efanayo negesi efanelekileyo, kwaye ke, ziyapholisa loo mmandla.
Ngendlela, inqanaba elinye le-TEC linokuvelisa ifayile ye- umahluko wobushushu phakathi kwamalungu ayo ukuya kuma-70ºC. Ke ukuba ugcina indawo eshushu ipholile, amandla okupholisa ngakumbi kule TEC okanye kwiPeltier cell iya kuba nayo. Olu bushushu lufunekayo luya kulingana ngokubonelelweyo kunye nexesha.
Izinto eziluncedo nezingalunganga ze-TEC
Njengayo nayiphi na inkqubo, i-TEC okanye iPeltier cell inezibonelelo zayo kunye nezinto ezingalunganga. Kungenxa yoko ezinye iinkqubo zefriji zisakhetha ukusebenzisa ezinye iindlela eziqhelekileyo. Phakathi Izibonelelo Zizo:
- Ayinazinto zihambayo, ke ayifuni kulondolozwa kwaye kunjalo inokuthenjwa ngakumbi.
- Ayisebenzisi icompressors akukho gesi i-CFC ingcolisayo.
- Ku nokuba njalo lawula ubushushu ngokuchanekileyo nangokuchanekileyo, ukuya kuthi ga kumaqhekeza enqanaba ngokwahluka ngoku kusetyenziswa.
- Ubungakanani obuncinci, nangona bunokwenziwa kunye ubukhulu obahlukeneyo.
- Ine a ubomi obude ukuya kuthi ga kwi-100.000 leeyure, xa kuthelekiswa noko kubonelelwa kwezinye iifriji zoomatshini.
Las Ukungancedi kokusebenzisa i-TEC Zizo:
- Unako kuphela uchithe imali encinci ukuhamba kobushushu.
- Ayisebenzi ukuthetha ngamandla xa kuthelekiswa neenkqubo zokucinezela igesi. Nangona kunjalo, inkqubela phambili entsha yenza ukuba isebenze ngokukuko.
Propiedades
Omnye Ipleyiti yePeltier enje nge-TEC1 12706 Inokuba ngamaxabiso kwi-euro ezimbalwa, ke ngexabiso eliphantsi kakhulu. Le bhodi inemilinganiselo ye-40x40x3mm kwaye iqulethe i-127 semiconductor pair ngaphakathi. Amandla ombane angama-60w kunye namandla ombane abonelelweyo angama-12v kunye nexesha langoku le-5A.
Ngaye unako Velisa ubushushu obuninzi phakathi kobuso babo obungama-65ºC, intle kakhulu. Ingasebenza phakathi kwe -55ºC kunye ne-83ºC ngaphandle kokuzenzakalisa, ke ukuba uyahamba ngaphandle kwala maxabiso uzibeka emngciphekweni wokungasetyenziswa. Ukuba ugcina amaxabiso ngaphakathi kuyo, inokukugcina nokusebenza iiyure ezingama-200.000 ngokugqibeleleyo, oko kukuthi, iminyaka emininzi ...
Ukusebenza kwale modeli kumalunga 12-15w ubushushu itsaliwe, Oko kukusebenza ngokugqibeleleyo malunga ne-20 okanye i-25% kuthathelwa ingqalelo ukuba itya malunga ne-60w. Ngapha koko, kuya kufuneka ukhumbule ukuba eli xabiso liza kuchaphazeleka kakhulu bubushushu obujikelezayo.
Ukuba ukhetha njalo, endaweni yokuthenga kuphela i-TEC okanye iseli yePeltier, unokuthenga kwi Akukho mveliso ifunyenweyo inkqubo epheleleyo yokupholisa.
Ukusetyenziswa kweseli yePeltier
Ewe, iseli yePeltier Ingasetyenziselwa ukupholisa. Umzekelo, unokupholisa amanzi okanye nayiphi na enye into engamanzi ngayo, okanye wenze eyakho i-dehumidifier eyenziweyo. Nokuba yeyiphi na, ukuseta kwayo kulula kakhulu. Nje ukuba ufumane okanye ufumane iseli, kuya kufuneka usebenzise ngqo ngokuthe ngqo kwiintambo ezilungileyo nezingalunganga. Ngale ndlela elinye icala liya kushushu lize elinye libande. Kufuneka uwachonge kakuhle amacala ayo ngokoko ukufunayo.
Umzekelo wesicelo kunye neArduino
Ungasebenzisa ifayile ye- Inkqubo yonxibelelwano njengale simenzele yona imodyuli edlulisiweyo, kodwa endaweni yokondla iseli yePeltier kunye nefeni ene-220v AC, ityiswa ngeDC nge-12v. Ungasebenzisa iskimu esifanayo kwaye uqhagamshele ukupholisa kwakho kwibhodi yeArduino.
Nje ukuba yonke into idityaniswe, unako yenza ikhowudi elula yeArduino IDE Ukuze inkqubo yefriji yakho ilawulwe, njengale ukulawula ukudluliswa ngokwale miqathango ukwenzela ukuba inkqubo isebenze (ungasebenzisa ukufuma okongeziweyo, amaqondo obushushu, njl.):
const int pin = 9; //Debe ser el pin conectado al relé para su control const float thresholdLOW = 20.0; const float thresholdHIGH= 30.0; bool state = 0; //Celda Peltier desactivada o desactivada float GetTemperature() { return 20.0; //sustituir en función del sensor de temperatura (o lo que sea) empleado } void setup() { pinMode(pin, OUTPUT); //el pin de control se define como salida } void loop(){ float currentTemperature = GetTemperature(); if(state == 0 && currentTemperature > thresholdHIGH) { state = 1; digitalWrite(pin, HIGH); //Se enciende el TEC } if(state == 1 && currentTemperature < thresholdLOW) { state == 0; digitalWrite(pin, LOW); //Se apaga el TEC } delay(5000); //Espera 5 segundos entre las mediciones de temperatura en este caso }