تجهیزات و سیستم ها
Preheat Coil Piping Diagrams
Preheat coils are essential components of HVAC systems, helping to protect other equipment from freezing and improve efficiency. Preheat coil piping diagrams are essential tools for HVAC professionals to design, install, and troubleshoot preheat coils.
Air-Cooled vs. Water-Cooled Chillers: Selection Criteria
Compare air-cooled vs. water-cooled chillers. Understand selection criteria to make the best choice for your cooling needs.
فرآیند اندازه گیری و انتخاب شیر انبساط تبرید
انتخاب و اندازه مناسب شیرهای انبساط تبرید یک فرآیند سیستماتیک است که نیازمند بررسی دقیق پارامترهای متعدد است. انتخاب شیر انبساط مناسب شامل درک الزامات سیستم، محاسبه ظرفیت های صحیح و محاسبه شرایط عملیاتی مانند خنک کننده فرعی و افت فشار است.
اندازه و انتخاب کندانسور تبرید
The proper sizing and selection of refrigeration condensers is a complex process that requires careful consideration of multiple factors, including heat load calculations, environmental conditions, system requirements, and efficiency goals. By following a structured approach that considers all relevant parameters, engineers can select condensers that provide optimal performance while minimizing energy consumption and maintenance requirements.
Constant Volume Air Handling
Constant Volume Air Handling design principles and control strategies, with particular emphasis on energy optimization and frost protection mechanisms.
Cooling Load Rules Of Thumb
Cooling Load Rules Of Thumb for HVAC design of Banks, Court Houses, Municipal Buildings, Town Halls, Police Stations, Fire Stations, Post Offices, Precision Manufacturing, Computer Rooms, Restaurants, Kitchens (Depends Primarily on Kitchen Equipment), Cocktail Lounges, Bars, Taverns, Clubhouses, Nightclubs, Hospital Patient Rooms, Nursing Home Patient Rooms Buildings w/100 percent OA Systems (e.g., Laboratories, Hospitals) Medical/Dental Centers, Clinics, and Offices Residential Apartments (Eff., One-Room, Two-Room) Motel and Hotel Public Spaces Motel and Hotel Guest Rooms, Dormitories School Classrooms Dining Halls, Lunch Rooms, Cafeterias, Luncheonettes Libraries, Museums Retail, Department Stores Drug, Shoe, Dress, Jewelry, Beauty, Barber, and Other Shops Supermarkets Malls, Shopping Centers Jails Auditoriums, Theaters Churches Bowling Alleys
Induction (Air/Water) System
Perimeter induction units – usually located under windows – blend primary air from the air-processing unit with secondary air from within the room. The high-velocity processed air delivery is induced into the unit through restrictive nozzles.
Indoor Design Conditions
Indoor design conditions for HVAC design of Office Buildings, Commercial Facilities General Spaces, Educational Facilities, Food and Beverage Service, Hotels, Motels, Resorts, and Dormitories, Correctional Facilities, Retail Stores and Specialty Shops Theaters, Sports and Entertainment, Transportation, Storage Facilities, Workrooms, Private Dwelling—Single and Multiple, Laboratories, Computer Facilities, High-Tech Industrial, Special Facilities, Hospital Nursing Units Obstetrical Facilities, Emergency, Surgery, and Critical Care, Hospital Facility Support Areas, Diagnostic and Treatment Areas, Hospital Service Areas Sterilizing and Supply…
Fancoil (Air/Water) Unit And Induction Diffuser
An alternative discharge unit for application to the induction system shown on the previous page. Instead of nozzle injection of air, a low-powered fan is used to disperse a mixture of primary and secondary air after reheating or cooling from an energy exchanger within the unit.
Dual Duct System
The dual duct system is another means of providing varying air temperatures to different rooms in the same building. There is no water circulation to peripheral discharge units with terminal reheaters or coolers. This simplifies the plumbing installation as heating and cooling elements for each duct are located in the plant room. However, the system is space consuming and adequate provision must be made in suspended ceilings or raised flooring to accommodate both distribution ducts. The system is most energy economic when heating and cooling elements operate individually.
کنترل و اتوماسیون
خنک کننده مایع مستقیم به تراشه: آینده مدیریت حرارتی مرکز داده با چگالی بالا
چگالی توان مرکز داده به 12 تا 30 کیلو وات در هر رک افزایش یافته است که خنک کننده مایع را ضروری می کند. با نحوه عملکرد سیستم های تک فاز و دو فاز مستقیم به تراشه، معیارهای انتخاب مبرد و ملاحظات طراحی حیاتی برای شیلنگ ها، لوله ها و کوپلینگ ها در مراکز داده مدرن با چگالی بالا آشنا شوید.
نمودارهای کنترل HVAC
در این پست وبلاگ، برخی از رایج ترین نمودارهای کنترل تهویه مطبوع را معرفی خواهیم کرد. همچنین توضیح مختصری در مورد هر نمودار و نحوه کار اجزای آن با هم ارائه خواهیم داد. نمودارهای کنترل HVAC ابزارهای ضروری برای طراحی، نصب و نگهداری سیستم های HVAC هستند. آنها یک نمایش بصری از اجزای سیستم، نحوه اتصال آنها به یکدیگر و نحوه کنترل آنها ارائه می دهند. از این اطلاعات می توان برای عیب یابی مشکلات، بهینه سازی عملکرد و تصمیم گیری آگاهانه در مورد ارتقاء سیستم استفاده کرد.