Energy and exergy efficiency of a packed-bed heat storage unit for greenhouse heating
HH Öztürk, A Başçetinçelik - Biosystems engineering, 2003 - Elsevier
In this research, solar energy was stored daily using the volcanic material with the sensible
heat technique for heating the tunnel greenhouse of 120m2. The external heat collection
unit consisted of 27m2 of south-facing solar air heaters mounted at a 55° tilt angle. The
dimensions of the packed-bed heat storage unit were 6m by 2m by 0· 6m deep. The packed-
bed heat storage unit was built under the soil at the centre of the tunnel greenhouse. The
heat storage unit volume per square metre of ground surface of the tunnel greenhouse was …
heat technique for heating the tunnel greenhouse of 120m2. The external heat collection
unit consisted of 27m2 of south-facing solar air heaters mounted at a 55° tilt angle. The
dimensions of the packed-bed heat storage unit were 6m by 2m by 0· 6m deep. The packed-
bed heat storage unit was built under the soil at the centre of the tunnel greenhouse. The
heat storage unit volume per square metre of ground surface of the tunnel greenhouse was …
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