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تحلیل انرژی با شبیه‌سازی هندسه و پارامترهای اقلیمی گلخانه رز مینیاتوری در TRNSYS و اعتبارسنجی با داده‌های اندازه‌گیری شده | ||
| مهندسی بیوسیستم ایران | ||
| دوره 55، شماره 2، تیر 1403، صفحه 21-40 اصل مقاله (2.4 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijbse.2024.377097.665554 | ||
| نویسندگان | ||
| وحید ثوابی1؛ غلامرضا چگینی* 2؛ اکبر عرب حسینی3 | ||
| 1دانشجوی دکتری ،گروه فنی کشاورزی، دانشکده فناوری ابوریحان،دانشکده کشاورزی و منابع طبیعی، دانشگاه تهران، تهران ایران | ||
| 22. دانشیار گروه فنی کشاورزی-دانشکدگان کشاورزی و منابع طبیعی، دانشکده فناوری ابوریحان -دانشگاه تهران، تهران ، ایران | ||
| 3دانشگاه تهران، پردیس کشاورزی و منابع طبیعی، دانشکده فناوری ابوریحان،دانشگاه تهران،تهران، ایران | ||
| چکیده | ||
| تامین هزینه انرژی گلخانه از مهمترین چالش‌های تولید محصولات در گلخانه می‌باشد. لذا برای بهبود عملکرد حرارتی گلخانه پیش‌بینی نیاز حرارتی گلخانه ضروری است و دستیابی به یک راهکار مطلوب برای پیش‌بینی رفتار حرارتی و مدیریت انرژی بسیار پیچیده است. در این پژوهش، مدل یک گلخانه واقعی گل رز در شهر پاکدشت با نرم‌افزار TRNSYS شبیه‌سازی شده است. در این مدل، هندسه گلخانه، سیستم‌های تهویه، سرمایشی وگرمایشی مطابق نمونه واقعی آن شبیه‌سازی شده است. در طول یک ماه، دما و رطوبت نسبی داخل گلخانه با استفاده از حسگرهایی که در نقاط مختلف گلخانه نصب شده بودند اندازه‌گیری شد. داده‌های شبیه‌سازی شده با داده‌های اندازه‌گیری شده در طول یک ماه مقایسه شدند. اختلاف بین نتایج شبیه‌سازی و داده‌های اندازه‌گیری شده با معیارهای ریشه میانگین مربعات خطا (RMSE)، ضریب تغییرات ریشه میانگین مربعات خطا (CV RMSE) و میانگین خطای بایاس نرمال شده (NMBE) محاسبه شدند. میزان خطا برای دمای داخل گلخانه 5/3 درجه سلسیوس و برای رطوبت نسبی داخل گلخانه 12 درصد بود. با استفاده از شبیه‌سازی گلخانه موازنه انرژی برای گلخانه در طول یک سال به تفکیک هر ماه محاسبه شد و مشخص شد که بیشترین تلفات انرژی در گلخانه مربوط به سیستم تهویه و انتقال حرارت از دیوار‌های آن می‌باشد و جهت گیری گلخانه نقش مهمی در عملکرد حرارتی آن داشت و انرژی خورشیدی دریافتی از دیوارها را تا 5% تحت تاثیر قرار داد. | ||
| کلیدواژه‌ها | ||
| موازنه انرژی؛ گلخانه؛ شبیه سازی انرژی؛ طراحی گلخانه | ||
| عنوان مقاله [English] | ||
| Energy analysis by simulating the geometry and climatic parameters of a miniature rose greenhouse in TRNSYS and validation with measured data | ||
| نویسندگان [English] | ||
| Vahid Savabi1؛ Gholamreza chegini2؛ Akbar Arabhosseini3 | ||
| 1Phd Student Agrotechnology Department of Agrotechnology, َFaculty of Agriculture, College of Abouraihan, University of Tehran, In Pakdasht, Tehran Iran | ||
| 2Associeted Professor, Agrotechnology Department of Agrotechnology, َFaculty of Agriculture, College of Abouraihan, University of Tehran, In Pakdasht, Tehran Iran | ||
| 3Professor, Agrotechnology Department of Agrotechnology, َFaculty of Agriculture, College of Abouraihan, University of Tehran, In Pakdasht, Tehran Iran | ||
| چکیده [English] | ||
| Energy costs for greenhouses are one of the most important challenges for crop production in such environments. Predicting the thermal needs of a greenhouse is essential to improve its thermal performance, and achieving an optimal solution for predicting thermal behavior and energy management is very complex. In this study, a real rose greenhouse model in Pakdasht city was simulated using TRNSYS software. In this model, the greenhouse geometry as well as the ventilation, cooling, and heating systems were simulated according to their real counterparts. During a month, the temperature and relative humidity inside the greenhouse were measured using sensors installed at different points in the greenhouse. The simulated data were compared with the measured data collected each month. The difference between the simulation results and the measured data was calculated using the following criteria: root mean square error (RMSE), coefficient of variation of root mean square error (CV RMSE), and normalized mean bias error (NMBE). The temperature error inside the greenhouse was 3.5 °C and 12% for relative humidity. Using greenhouse simulation, the greenhouse energy balance was calculated for each month over a year, which showed that the largest energy losses in the greenhouse were related to the ventilation system and heat transfer through its walls. In addition, the orientation of the greenhouse played a significant role in its thermal performance, with orientation changing up to 5% of the solar energy received by the walls. | ||
| کلیدواژه‌ها [English] | ||
| Energy balance, greenhouse, energy simulation, greenhouse design | ||
| مراجع | ||
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