TAS TRAVEL DARAH

Abstract

TravelBlood Bags lsabloodbagstransportation devicethatuse 3pettier element whichexpectedholdouttemperatureat2–6 ⁰Cduring± 1hour.

Workingsystemofthemodulelsusepowersupplyforfirst refrigerationproccesand

usebatterytobackupaslongasthetrip.Temperaturereductionwithsupplyneed4-5hourfor gettemperature lessthan6 ⁰C,thanbatteryneed1hourfor holdouttemperatureat2-6 ⁰C.To detecttemperature InthemoduleuseLM35sensor.Astemperaturedisplayinthemoduleuse ledindicatorif green ledandredledarelightupItsmeantemperaturestillat2-6 ⁰C.Powerbatteryreductionlsshownfrom levelbatteryIndicator if voltage startingdownindicatorledwill turnoffandbuzzerls on.Based on the results oftesting and measurements attemperatures around2-6 ⁰Cwithcomparativemeasurements, beobtainedincreaseandreductionatairand chill During use battery reduction of the temperature 0,1- O,2°C,while increase of the temperature 1,95⁰C when time is reach J hour In the module there are sample with a temperatureof 4⁰C.

Keyword: Temperature,Bloodbags,Peltierelement