| 摘要 |
<p>With impact of energy crisis, global warming more attention is focused on strategies for energy conservation. In country like India out of total power consumption of 600x103 GW-hr per annual. 5.09x103 GW-hr per annual is utilized in air conditioning residential, commercial buildings. Residential and offices air conditioning system generally consist of smaller units of air conditioner which basically have air cooled condenser. The heat transfer through the condenser depends upon the ambient temperature. Lower the ambient temperature the better the performance. However, the contradiction is the higher the ambient temperature, the poorer performance of condenser, the higher use of air conditioner. In the present work condenser of 1TR window air conditioner is modified to a condensate water cooled condenser. The condensate from the air conditioner is collected in a modified tank under the casing of air conditioner and small 8 watt variable flow rate pump is utilized in spraying this water on the condenser. A water cooled condenser reduces the power consumption improving the heat transfer from the condenser. However in this work optimal flow rate of this water is identified to get maximum energy saving. Higher and lower flow rates other than the optimal flow rate actually have less improvement in the energy saving. This fact has been identified in the present work. This also reduces the amount of water required. This work is unique in its identification of optimal flow rate of water for the water cooled condenser. Water flow rate was varied from 0.281it/min to 2.281it/min. It is indentified that the increase in power saving varied from 60.78% to 74.50%. As the flow rate of water is increased from 0.281it/min to 0.54 lit/min the power saving increased from 60.78%) to 74.50%. When the flow rate was increased 0.541it/min to 2.281it/min the power saving decreased from 14.5% to 60.78%o. Hence the optimal flow rate for the present system is 0.541it/min.</p> |
