ارزیابی سامانه یکپارچه انرژی خورشیدی و زمین‌گرمایی برای تولید همزمان توان، گرما و سرمایش

نوع مقاله : مقاله پژوهشی

نویسنده

• امین کاردگر

گروه مهندسی مکانیک-دانشکده مهندسی و فناوری-دانشگاه مازندران-بابلسر-ایران

10.22067/jacsm.2022.76152.1108

چکیده

در پژوهش حاضر، یک سامانه انرژی یکپارچه خورشیدی-زمین گرمایی ارائه شده است. این سامانه انرژی از یک محفظه تبخیر یک مرحله­ای زمین گرمایی، سیکل تبرید جذبی تک اثره، سیکل پمپ حرارتی برای عملیات خشک کردن، سامانه ذخیره­ساز انرژی خورشیدی، دو توربین بخار برای تولید توان، تولید سرمایش برای مصارف خانگی و سامانه گرمایشی برای مصارف صنعتی تشکیل شده است. هدف از این سامانه تولید توان، سرمایش و گرمایش برای مصارف خانگی و صنعتی و  خشک کردن محصولات غذایی است. راندمان انرژی و اگزرژی کل این سامانه به ترتیب 92% و %57 است. اثرات عوامل مؤثر مانند دمای محیط، دبی و دمای آب مخزن زمین­گرمایی و دمای آب خروجی از ژنراتور سیکل تبرید جذبی بر راندمان انرژی و اگزرژی سامانه بررسی شده است. با افزایش دمای محیط از K 270 تاK  320 مقدار راندمان انرژی کل تغییری نمی­کند اما راندمان اگزرژی کل، توربین شماره 1 و توربین شماره 2 به ترتیب حدود 7%، 3% و 4% کاهش می­یابد.

کلیدواژه‌ها

• اگزرژی
• زمین گرمایی
• انرژی خوشیدی
• تبرید جذبی
• تولید توان

موضوعات

• ترمودینامیک

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عنوان مقاله [English]

Evaluation of an integrated solar-geothermal energy system to provide power, heat and cooling

نویسنده [English]

• Amin Kardgar

Department of Mech. Eng.-Faculty of Engineering and Technology-University of Mazandaran-Babolsar-Iran

چکیده [English]

In the present research, an integrated solar-geothermal energy system is proposed. This energy system consists of a single flash geothermal cycle, single effect absorption refrigeration cycle, heat pump cycle for drying process, solar energy saving comportment, two steam turbines for power production, cooling system for domestic usage and heating for industrial application. The aim of this system is providing cooling and heating for domestic and industrial appliances and drying food products. The energy and exergy efficiency of the system were 92% and 57%, respectively. The effect of parameters such as surrounding temperature, the temperature and the mass flow rate of geothermal tank, and the outlet water temperature of the generator of absorbtion cooling system on energy and exergy efficiency of the system were investigated. The overall energy efficiency does not change by increasing surrounding temperature from 270 K to 320 K, but overall exergy efficiency, turbine 1, and turbine 2 decrease almost 7%, 3% and 4%, respectively.

کلیدواژه‌ها [English]

• Exergy
• Geothermal
• Solar energy
• Absorption refrigeration
• Power production

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