Evaluation of low-GWP and mildly flammable mixtures as new alternatives for R410A in air-conditioning and heat pump system

2021 ◽  
Vol 121 ◽  
pp. 95-104
Author(s):  
Binbin Yu ◽  
Hongsheng Ouyang ◽  
Junye SHI ◽  
Wuchan LIU ◽  
Jiangping CHEN
Keyword(s):  
Heat Pump ◽  
Air Conditioning ◽  
Pump System ◽  
Heat Pump System

Application Analysis of Pile Foundation Ground Source Heat Pump System

2013 ◽  
Vol 448-453 ◽  
pp. 2839-2842 ◽  
Author(s):  
Yun Zhun Fu ◽  
Xin Hui Du ◽  
Xu Zhang
Keyword(s):  
Heat Pump ◽  
Pile Foundation ◽  
Air Conditioning ◽  
Test Method ◽  
Buried Pipe ◽  
Pump System ◽  
Air Conditioning System ◽  
Heat Pump System ◽  
Advantages And Disadvantages ◽  
Pipe Heat

Pile foundation thermal response test method was adopted to measure the heat transfer capacity of the pile foundation U-pipe heat exchanger. The heat pump system of pile foundation buried pipe was designed. BIN method was adopted to calculate the annual dynamic load of office in Shanghai and annual energy consumption, and its energy-saving effect was determined by comparing with the air-cooled heat pump air conditioning system. Finally, annual cost method was employed to study the investment and annual operating expenses of pile foundation buried pipe heat pump air conditioner systems, and their economy, advantages and disadvantages by comparing with those of the air-cooled heat pump air conditioning system were analyzed.

scholarly journals THE HEAT PUMP SYSTEM FOR VENTILATION AND AIR CONDITIONING INSIDE THE PRODUCTION AREA WITH AN EXCESSIVE INTERNAL MOISTURE GENERATION

2020 ◽  
Vol 17 (2) ◽  
pp. 78-86
Author(s):  
M.K. Bezrodny ◽  
Keyword(s):  
Energy Efficiency ◽  
Relative Humidity ◽  
Heat Pump ◽  
Air Conditioning ◽  
Warm Season ◽  
Pump System ◽  
Heat Pump System ◽  
Environment Temperature ◽  
Production Area ◽  
Continental Climate

The paper studies application feasibility and energy efficiency of the ventilation and air conditioning heat pump system for maintaining comfort conditions inside the production area with an excessive internal moisture generation during the warm season. In this regard, a thermodynamic analysis of a heat pump system with a partial exhaust air recirculation and a variable ratio of fresh outside air was carried out. Numerical analysis was then done to estimate the influence of changes in the environment temperature and relative humidity and the characteristics of the ventilation and air conditioning object on the system parameters. This allowed to determine potential capabilities of this system to maintain comfortable conditions in the production area. It was also shown that the required additional cooling of the supply air at the entrance to the premise for air conditioning demands can be determined by a simple coefficient and its calculation method is provided in the article. The heat pump system of temperature and humidity maintenance has the highest energy efficiency in the zone of relatively low environment temperatures and largely depends on the relative humidity of the outside air. This suggests that the studied system is suitable for application in countries with temperate continental climate.

Application of WSHP in Air Conditioning System within Hospital Buildings

2012 ◽  
Vol 170-173 ◽  
pp. 2583-2586
Author(s):  
Yi Ran Wei
Keyword(s):  
Heat Pump ◽  
Economic Performance ◽  
Air Conditioning ◽  
Water Source ◽  
Operation Management ◽  
Pump System ◽  
Air Conditioning System ◽  
Equipment Selection ◽  
Heat Pump System ◽  
Practical Applications

Based on practical applications of WSHP (Water Source Heat Pump) system, equipment selection, operation management, economic performance of the system, etc. have been analyzed and expounded All of our work is helpful and valuable for peer reference.

Sign in / Sign up

Export Citation Format

Share Document