@article{oai:kanazawa-u.repo.nii.ac.jp:00008659, author = {Kodama, Akio and Ohkura, Masashi and 児玉, 昭雄 and 大蔵, 将史}, issue = {116}, journal = {空気調和・衛生工学会論文集}, month = {Nov}, note = {本報では外気を加熱して再生空気とする太陽熱駆動デシカント空調システムにおいて,熱源である平板型温水器の集熱面積,循環水流量が除湿および冷房性能に与える影響を様々な日射量条件,外気温湿度条件で測定,検討した.直径1.2mの除湿ローターを用いて4000m^3/hの外気を処理する場合,日射量の不安定さを循環水への蓄熱で保障するためには集熱面積60m^2が一応の目安となるが,室内潜熱にも対応するにはそれ以上の集熱面積あるいは他形式の集熱板が必要である.また,太陽熱温水器内の循環水流量を低下させ,得られる循環水温度の上昇を期待したが,再生空気温度の上昇は小さく,空気加熱器仕様の変更が同時に必要である. A solar powered desiccant cooling process is one of the environmentally friendly cooling processes since the heat energy is supplied from solar collectors. Its cooling/dehumidifying performances are complicatedly influenced by solar irradiation, ambient humidity and operating parameters. This paper discusses the results of the field test of a solar driven desiccant cooling system, focusing on the influence of surface area of the solar water heater under several values of solar irradiation and circulating water flow rates. The desiccant cooling system has a 1.2m diameter desiccant rotor and handles 4000m^3/h of air. Its cooling/dehumidifying performance at the surface area of 60m^2 was acceptable even in unstable solar condition since the large amount of thermal energy accumulation in the circulating water prevented fluctuation effect due to solar irradiation. On the other hand, cooling performance obtained for the smaller surface area decreased due to the unstable solar irradiation (under 0.5kW/m^2). It was found that surface area of at least 60m^2 was required to obtain sufficient dehumidifying performance. Furthermore, it was considered that larger surface area or the use of other type solar collector was required to remove latent heat load of the indoor room. Although higher water temperature was achieved in slower flow rate of circulating water, dehumidifying performance could not be increased due to approximately equal amount of heat supplied to the cooling process. In such case, adjustment of the specification of air heater to flow rate of the circulating water was required., 金沢大学新学術創成研究機構}, pages = {43--49}, title = {太陽熱駆動デシカント空調システムにおける温水器集熱面積および循環水量の影響}, year = {2006} }