کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
262639 504046 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparative study of control strategies for hybrid GSHP system in the cooling dominated climate
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
Comparative study of control strategies for hybrid GSHP system in the cooling dominated climate
چکیده انگلیسی


• For the first time, the hybrid GSHP system was modeled in the newly released eQUEST 3.7.
• Comparison was undertaken among twelve case scenarios with four cooling control strategies.
• Thermal loads were well balanced on the ground loop with the undersized well field.
• The rooms were maintained as close as to the cooling/heating setpoints.
• The hybrid GSHP system is a good alternative for conventional GSHP system.

The ground source heat pump (GSHP) system is one of the most energy efficient HVAC technologies in the current market. However, the heat imbalance may degrade the ability of the ground loop heat exchanger (GLHX) to absorb or reject heat. The hybrid GSHP system, which combines a geothermal well field with a supplemental boiler or cooling tower, can balance the loads imposed on the ground loop heat exchangers to minimize its size while retaining superior energy efficiency. This paper presents a recent simulation-based study with an intention to compare multiple common control strategies used in hybrid GSHP systems, including fixed setpoint, outside air reset, load reset, and wetbulb reset. A small office in Oklahoma City conditioned by a hybrid GSHP system was simulated with the latest version of eQUEST 3.7 [1]. The simulation results reveal that the hybrid GSHP system has the excellent capability to meet the cooling and heating setpoints during the occupied hours, balance thermal loads on the ground loop, as well as improve the thermal comfort of the occupants with the reduced size well field.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy and Buildings - Volume 89, 15 February 2015, Pages 222–230
نویسندگان
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