Improving heat pump performance during cold weather using solar-air heat collector

Abstract

This project aims to study the possibility of enhancing the efficiency of gas air-conditioning system in private and public buildings, that is during the temperature is cold outside the building and the solar energy is available. The main idea of the project is to heat the air that enters the external unit of the air conditioning unit by using solar air heating collector system, this because the conditioning air system generally lose its COP when the external temperature decreases. In the same time, using the heating by solar air heat collector directly requires passing a complex air ducts inside the building which is usually inappropriate for small buildings. So this project combines the advantages of the both systems, because increasing the temperature of air which enters the collector unit, increases the COP of the conditioning system. In addition, when the conditioning system is not operating, the heated air can be passed directly to the near zoon of the house which does not require ducts. انمشر عَ ذٌٍف انى دراسخ امكبو رحس هٍ كفبئ وظبو انزك فٍ ثبنغبز ف انمجبو انخبصخ اَنؼبمخ , رَنك ف انحبلاد انز رك نُ ف بٍٍ درجبد انحرارح مىخفضخ ف انخبرج رَز فُر انطبقخ انشمس خٍ . رزركس انفكرح الاسبس خٍ ػهى رسخ هٍ ان اٍُء انذاخم انى ان حُذح انخبرج خٍ ف وظبو انزك فٍ ث اُسط انجبمغ انحراري نهطبقخ انشمس خٍ, ح ثٍ أن كفبءح اوظم انزك فٍ رقم مغ اوخفبض درجبد انحرارح انخبرج خٍ, فَ وفس ان قُذ ان اسزخذاو انزذفئخ مه خلال انجبمغ نهطبقخ انشمس خٍ مجبشرح زٌطهت رمر رٌ قى اُد اٌُئ خٍ كج رٍي ف الاغهت غ رٍ مىبسج نهمسبكه اَنمجبو انصغ رٍح . فبنمشر عَ جٌمغ ث هٍ انج اُوت الإ جٌبث خٍ نهىظبم هٍ , ح ثٍ ان رفغ درج حراري ان اٍُء انذاخم انى ان حُذح انخبرج خٍ رٌفغ مه كفبئ وظبو انزك فٍ , ثَبلإضبفخ انى رنك او ف حبن ػذو رشغ مٍ وظبو انزك فٍ وسزط غٍ انحص لُ ػهى انزذفئخ مه انجبمغ انحراري رَمر رٌ بٌ انى اقرة مكبن ف انمىسل ثشكم مجبشر اَنز لا رحزبج قى اُد اٌُئ خٍ .