Development of an Energy-Saving Occupied-Zone HVAC System (OZ HVAC)

2012 ◽  
Author(s):  
Chunkyu Kwon ◽  
Chang Won Lee ◽  
Lee Foster ◽  
Jungho Kwon ◽  
Younggy Shin
Keyword(s):  
Energy Saving ◽  
Hvac System ◽  
Occupied Zone

Heating energy-saving potentials in HVAC system of swimming halls: A review

2021 ◽  
pp. 108189
Author(s):  
Xiaolei Yuan ◽  
Zhisen Chen ◽  
Yumin Liang ◽  
Yiqun Pan ◽  
Juha Jokisalo ◽  
...  
Keyword(s):  
Energy Saving ◽  
Hvac System

scholarly journals Lessons learned from recommissioning a public office building

2018 ◽  
Vol 175 ◽  
pp. 04029
Author(s):  
Yuyang Miao ◽  
Chenggang Liu ◽  
Xinjiang Huang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Water System ◽  
Lessons Learned ◽  
Hot Water ◽  
Office Building ◽  
Hvac System ◽  
Public Office ◽  
Control Scheme ◽  
Actual Energy Consumption

Energy consumption of HVAC system play a big role on the whole building energy usage. Recommissioning on HVAC system can improve build comfort and its performance. Taking the recommissioning of public office as an example, the issue of the energy consumption of HVAC system was found, control scheme of chilled and hot water system and AHUs was optimized, the new energy saving control scheme was determined, and the actual energy consumption was analysed. The result show that recommissioning for the public office building achieved obviously effect, and the rate of energy saving is 18%, 33% and 10% for chilled water, hot water and electricity, respectively.

Evaluating Thermal Environments by Using an Air-Conditioning Energy-Saving Mechanism

2012 ◽  
Author(s):  
Nguyen Anh Tuan ◽  
K. D. Huang
Keyword(s):  
Energy Saving ◽  
Air Conditioning ◽  
Energy Use ◽  
Thermal Environment ◽  
Minimum Energy ◽  
Outlet Port ◽  
Thermal Environments ◽  
Environment Control ◽  
Port Opening ◽  
Occupied Zone

In a highly developed living, people are always looking for a comfortable indoor environment with minimum energy use. Individual air-conditioning system (IACS) can create an individual thermal environment control in a workroom which can contribute to save air-conditioning energy. In this study, we analyze the airflow circulation cell of the IACS with varied outlet port opening and outlet port position dimensions using the computational fluid dynamics (CFD) technique. We created an IACS, two workstations, lightings, and a cabinet in a 3-dimensional room. The fluid was assumed to be Newtonian, unsteady, and incompressible. A Bossinesq approximation was determined in order to consider the buoyancy effect. We examined the effects of the outlet port opening and outlet port position on airflow circulation establishing process. Air temperatures along the various midline of the occupied zone were predicted and compared for a range of outlet port opening and outlet port position by using non-dimensional form. We also showed the occupied zone temperature at various planes in the workroom. Results will indicate the suitable outlet port opening and outlet port position for maintaining individual satisfied occupants’ requirements and improving energy saving potential.

scholarly journals Validation of a 5-zone-car-cabin model to predict the energy saving potentials of a battery electric vehicle’s HVAC system

2018 ◽  
Vol 383 ◽  
pp. 012037
Author(s):  
Kurt Kruppok ◽  
Felix Claret ◽  
Peter Neugebauer ◽  
Reiner Kriesten ◽  
Eric Sax
Keyword(s):  
Energy Saving ◽  
Hvac System
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