Investigation on The Thermal Performance of Evacuated Glass-Thermal Absorber Tube Collector (EGATC) for Air Heating Application

Existing design of Heat-Pipe Evacuated Tube Collector (HP ETC) for solar water heating require storage tank and additional heat exchanger required air application which leads to the extra spacing costing requirement. HP ETC have better thermal performance produce high outlet temperature than flat plate collector (FPC), especially during diffuse radiation. But normally focusing on system. Furthermore, FPC installation need be positioned either south or north facing ensure absorbs more Meanwhile, tilt at correct angle maximize These could lead limitation. The aim this research is develop new Glass-Thermal Absorber namely EGATC drying application. It was developed from conventional evacuated glass tube. In study comparison result were evaluated. three days outdoor experiment proves that in provide higher temperature. Based result, (Day 1: 50.9 oC, Day 2: 53.9 3: 49.2 oC) performed with slightly compare 46.7 50.3 46.9 oC). concluded term different as compared ETC. 53.6%, 50.6%, 49.8%) also greater efficiency capability 42.7%, 41.6%, 41.1%). Regarding energy buffer storage, sudden weather change such radiation clouds. (42.3 remained (39.9 beginning. gradually drops slower discharging period until end 15 minutes towards 41.1ºC 37.2ºC both difference 1.2ºC 2.7ºC respectively.