Applications of a Heat Pump System to Greenhouse Environmental Control
نویسندگان
چکیده
منابع مشابه
Dynamic Modeling of Microclimate and Environmental Control Strategies in a Greenhouse Coupled with a Heat Pump System
The purpose of this study was to develop and validate a dynamic simulation model to be employed in accurate prediction of microclimate in a greenhouse as a function of dynamic environmental factors. The model has options to evaluate the effects of location, time of the year, orientation, single and double polyethylene glazings, conventional and heat pump heating and cooling systems, open and co...
متن کاملفرآیند کنترل در سیستم کامپیوتری تهویه مطبوع airwasher environmental control system for intelligent buildings
در این پایان نامه با استفاده از تکنولوژی روز و امکانات داخل کشور طریقه اتوماسیون سیستم تاسیساتی یک کارخانه نساجی (کارخانه نساجی اطلس پود) همراه با منوهای مربوطه و توضیحات کامل برنامه نویسی و طراحی بلوک های برنامه و سایر قسمتهای برنامه ارائه گشته است. علاوه بر این، برنامه با نمونه آمریکایی آن مقایسه و مزیت های آن نسبت به آمریکایی توضیح داده شده است. همچنین تمامی بلوک های برنامه بصورت شماتیکی بطو...
15 صفحه اولExtremum Seeking Control of Hybrid Ground Source Heat Pump System
The Hybrid Ground Source Heat Pump (GSHP) system features the combination of ground heat exchanger (GHE) and cooling tower for rejecting the cooling load, which enables the use of the renewable resource of geothermal energy while reducing the cost of installation for applications of high cooling demand. However, model based control for efficient operation of the GSHP system can be intricate due...
متن کاملControl Method Of Circulating Refrigerant Amount For Heat Pump System
A heat pump system requires proper refrigerant charge amount. Once refrigerant is charged into a heat pump system, its charge amount is fixed. For this reason, prediction of optimal refrigerant charge amount is very important in order to yield best performance. Too low charge amount degrades capacity of heat pump. On the other hand, excessive charge amount decreases coefficient of performance (...
متن کاملClimate control software integration with a greenhouse environmental control computer
To integrate dynamic model based climate controlling in real-time with an environmental control computer a system integration interfacedBipsArchdwas developed. The three main objectives were: (1) to supply standard routines for communication with the environmental control computer. (2) to establish a set of databases to represent the current informational environment for the greenhouse. (3) to ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Agricultural Meteorology
سال: 1985
ISSN: 0021-8588,1881-0136
DOI: 10.2480/agrmet.41.231