محمد احمد محمد قايدباى معوض
أستاذ
An experimental investigation of the Evacuated Tube solar collector in conjunction with a latent heat storage tank
ENGINEERING RESEARCH JOURNAL • 2022
معلومات البحث
المؤلفون
Rashed M.Almari, Mohamed A. Abdelrahman, Mohamed A. Moawad.
الكلمات المفتاحية
solar collector, Phase change material, Energy storage, solar radiation.
المجلة العلمية
ENGINEERING RESEARCH JOURNAL
الناشر
Not Available
المجلد
1
العدد
51
الصفحات
20-28
publication.type
Local
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
A latent heat storage tank with a helical coil heat exchanger was developed, built, connected to an evacuated tube
solar collector, and tested in this study. 25 kg of paraffin wax was used as phase change material (PCM) in the
storage tank. During the charging (melting) process, the storage system was evaluated with varied mass flow rates of
hot water as a heat transfer medium (5, 8, 9, 10.5 and 13 L/min). The system was also tested with a constant mass
flow rate of domestic water during the discharging cycle (solidification). The results also showed that increasing the
flow rate from 5 L/min to 13 L/min reduced the charging time from 218 min to 157 min and increased the system's
overall efficiency from 28.4 % to 40.5 %.
solar collector, and tested in this study. 25 kg of paraffin wax was used as phase change material (PCM) in the
storage tank. During the charging (melting) process, the storage system was evaluated with varied mass flow rates of
hot water as a heat transfer medium (5, 8, 9, 10.5 and 13 L/min). The system was also tested with a constant mass
flow rate of domestic water during the discharging cycle (solidification). The results also showed that increasing the
flow rate from 5 L/min to 13 L/min reduced the charging time from 218 min to 157 min and increased the system's
overall efficiency from 28.4 % to 40.5 %.