Numerical simulation of a cooling tower coupled with heat pump system associated with single house using TRNSYS

2013 ◽  
Vol 75 ◽  
pp. 105-117 ◽  
Author(s):  
R. Chargui ◽  
H. Sammouda ◽  
A. Farhat
Keyword(s):  
Numerical Simulation ◽  
Heat Pump ◽  
Cooling Tower ◽  
Pump System ◽  
Heat Pump System

Numerical simulation and experimental validation of a solar-assisted heat pump system for heating residential water

2018 ◽  
Vol 86 ◽  
pp. 28-39 ◽  
Author(s):  
Hugo Miguel Combariza Bastos ◽  
Pedro Jesús González Torres ◽  
Carlos Eduardo Castilla Álvarez
Keyword(s):  
Numerical Simulation ◽  
Heat Pump ◽  
Experimental Validation ◽  
Pump System ◽  
Heat Pump System ◽  
Residential Water

Numerical Simulations of a Ground Source Heat Pump System With Pile Heat Exchangers

2014 ◽  
Vol 7 (1) ◽  
Author(s):  
Masahito Oguma ◽  
Takeshi Matsumoto ◽  
Takao Kakizaki
Keyword(s):  
Numerical Simulation ◽  
Numerical Simulations ◽  
Heat Pump ◽  
Heat Exchangers ◽  
Heat Supply ◽  
Ground Surface ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source

Feasibility of a ground source heat pump (GSHP) system with pile heat exchangers for use in houses is evaluated through a numerical simulation. This GSHP system differs from ordinary borehole-type GSHP systems because short foundation piles installed at close intervals are used as heat exchangers. It is shown that the annual heat supply provided by this GSHP system is able to satisfy the demand of a house due to the air-source exchange at ground surface.

Numerical simulation and experimental validation of a micro-channel PV/T modules based direct-expansion solar heat pump system

2020 ◽  
Vol 145 ◽  
pp. 1992-2004 ◽  
Author(s):  
Jinzhi Zhou ◽  
Xiaoli Ma ◽  
Xudong Zhao ◽  
Yanping Yuan ◽  
Min Yu ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Heat Pump ◽  
Experimental Validation ◽  
Micro Channel ◽  
Direct Expansion ◽  
Pump System ◽  
Heat Pump System ◽  
Solar Heat

A comparison of numerical simulation methods analyzing the performance of a ground-coupled heat pump system

2018 ◽  
Vol 24 (5) ◽  
pp. 502-512 ◽  
Author(s):  
Angelo Zarrella ◽  
Roberto Zecchin ◽  
Philippe Pasquier ◽  
Diego Guzzon ◽  
Michele De Carli ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Heat Pump ◽  
Simulation Methods ◽  
Pump System ◽  
Heat Pump System ◽  
Numerical Simulation Methods ◽  
Ground Coupled Heat Pump

scholarly journals Design and operation of an improved ground source heat pump system assisted with cooling tower

2017 ◽  
Vol 205 ◽  
pp. 3214-3221
Author(s):  
Shiyu Zhou ◽  
Wenzhi Cui ◽  
Shuanglong Zhao ◽  
Ke Zhu
Keyword(s):  
Heat Pump ◽  
Cooling Tower ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source

3D Numerical Simulation of Heat Transfer for the Vertical U Type Berried Pipe of the Ground Source Heat Pump

2013 ◽  
Vol 827 ◽  
pp. 203-208
Author(s):  
Yang Zhang ◽  
Yong Feng Qi
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Finite Element ◽  
Heat Pump ◽  
Element Model ◽  
Ground Source Heat Pump ◽  
Pump System ◽  
Heat Pump System ◽  
Ground Source ◽  
Heat Transfer Theory

Based on transient heat transfer theory and finite element method, a 3D finite element model was created to simulate the heat transfer of the vertical U type berried pipe of the ground source heat pump system. At the same time, the pipe algorithm applied successfully in the numerical simulation of concrete temperature field was introduced. The corresponding program was written. Taking the true experiment conditions as the input data and boundary condition of the computation model, the 3D dynamic simulation of the heat transfer between the berried pipe and sandy soil was carried out. The calculated temperatures of the output water of the pipe and the measure points in soil at different times met the experiment results very well, which verified the effectiveness and the reliability of the algorithm and the model. Beneficial exploration is made for providing more detailed and accurate data for the designer.

scholarly journals Design and Analysis of a Distributed Water Heat Pump System for Near- and Net-Zero Energy Commercial Buildings

2021 ◽  
Author(s):  
Maudud Hassan Quazi
Keyword(s):  
Natural Gas ◽  
Heat Pump ◽  
Cooling Tower ◽  
Heat Pumps ◽  
Base Case ◽  
Hvac System ◽  
Pump System ◽  
Heat Pump System ◽  
Heating And Cooling ◽  
Net Zero

This objective of this project is to determine the energy and environmental potential of distributed common loop water source heat pump system in a near or net-zero commercial office building, which has simultaneous heating and cooling load in winter and shoulder seasons. It is expected that the perimeter zones will have heating demand during those months, while the core zones will have consistent cooling demand throughout the year. The motive is to reclaim the rejected heat from the cooling operation and transfer it to the zones requiring heating. The building under study is a 60,000 ft2 three storey commercial office building, which has private offices along the perimeter, and open work area in the core. In the first part of the analysis, the base building has been modelled and simulated to the minimum requirements of ASHRAE 90.1-Energy Standard for Buildings except Low-Rise Residential Buildings using simulation software eQuest 3.65. The Heating Ventilation and Airconditioning (HVAC) system used is four-pipe fan coil system serving individual zones. The fan coil units use a centralized natural gas boiler and a variable capacity centrifugal chiller as external source of heating and cooling respectively. The base case consumes a total of 524.54 x 1000 kWh of electricity and 1,056 million Btu of natural gas annually. The second part is the modelling and simulation of a proposed case, which uses the same building envelope, occupancy, lighting and equipment as the base case. The HVAC system used is a distributed common loop heat pump system connected to a cooling tower for heat rejection, and a condensing boiler for heat addition. During the occupied hours, when simultaneous cooling and heating loads exist in the building, the cooling zone heat pumps rejects exhaust heat into the common loop, and the heat is subsequently used by the heat pumps operating in heating mode. Using this method, the heat pump system reduces its dependence on the cooling tower and the boiler, which only operate to maintain the loop temperature in an acceptable range. There is 9,510 kWh (1.81%) increase in electricity consumption by proposed case comparing to the base building. Natural gas consumption has been reduced by 353.65 million Btu (33.48%). Annual utility bill has increased by $1,483.00 which is 1.88% higher than the base case. 15.7 tonnes of greenhouse gas can be reduced if the proposed case is adopted.

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