Simulated Evaluation of Combined Use of Building Thermal Mass and Thermal Storage in Solar Hybrid Heat Pump System for Demand Response

2016 ◽  
Author(s):  
Kyoung-ho Lee ◽  
Joo Jae-Hyeok
Keyword(s):  
Heat Pump ◽  
Demand Response ◽  
Thermal Storage ◽  
Thermal Mass ◽  
Pump System ◽  
Heat Pump System ◽  
Combined Use ◽  
Hybrid Heat Pump

Simulation of a multi-source hybrid heat pump system with seasonal thermal storage in cold regions

2017 ◽  
Vol 116 ◽  
pp. 292-302 ◽  
Author(s):  
Zongwei Han ◽  
Lejian Qu ◽  
Xiao Ma ◽  
Xiaobei Song ◽  
Changming Ma
Keyword(s):  
Heat Pump ◽  
Thermal Storage ◽  
Pump System ◽  
Cold Regions ◽  
Heat Pump System ◽  
Hybrid Heat Pump

Experimental performance study on a dual-mode CO2 heat pump system with thermal storage

2017 ◽  
Vol 115 ◽  
pp. 393-405 ◽  
Author(s):  
Fang Liu ◽  
Weiquan Zhu ◽  
Yang Cai ◽  
Eckhard A. Groll ◽  
Jianxing Ren ◽  
...  
Keyword(s):  
Heat Pump ◽  
Thermal Storage ◽  
Performance Study ◽  
Dual Mode ◽  
Pump System ◽  
Heat Pump System ◽  
Experimental Performance

Modeling of a Smart Heat Pump Made of Laminated Thermoelectric and Electrocaloric Materials

2016 ◽  
Vol 138 (4) ◽  
Author(s):  
Dudong Feng ◽  
Shi-Chune Yao ◽  
Tian Zhang ◽  
Qiming Zhang
Keyword(s):  
Heat Pump ◽  
Temperature Difference ◽  
Coefficient Of Performance ◽  
Pump System ◽  
Laminated Structure ◽  
Heat Pump System ◽  
Simple Arrangement ◽  
Parametric Effects ◽  
Hybrid Heat Pump ◽  
Physical Features

In this study, a smart heat pump, which could be used for the cooling of electronics, made of laminated structure of thermoelectric (TE) and electrocaloric (EC) materials, is studied. A simple arrangement of two TE layers sandwiched with one EC layer is modeled. This smart heat pump utilized the newly developed EC materials of giant adiabatic temperature change and the TE materials of high figure of merit. The system has the advantages of no moving parts, made of solid state, operable over large working temperature difference, and can be formed into very small size. The operation of the device is numerically modeled considering the three major parametric effects: EC operation as a function of time, electric current applied on TE, and temperature difference between the hot and cold sinks. The results on coefficient of performance (COP) and heat flow per unit area are discussed. This study is performed as an early attempt of analyzing the basic physical features of TE–EC–TE laminated structure heat pump and extends the understanding by further discussing the tradeoff between lower COP and larger overall temperature difference coverage in the TE/EC hybrid heat pump system with multilaminated structure.

Experimental and simulation study on the plate absorber for hybrid heat pump system

2013 ◽  
Vol 27 (12) ◽  
pp. 3903-3909 ◽  
Author(s):  
Seung Sun An ◽  
Chung Woo Jung ◽  
Minsung Kim ◽  
Seong Ryong Park ◽  
Chaedong Kang ◽  
...  
Keyword(s):  
Heat Pump ◽  
Simulation Study ◽  
Pump System ◽  
Heat Pump System ◽  
Hybrid Heat Pump ◽  
Plate Absorber

scholarly journals Energy assessment of hybrid heat pump systems as a retrofit measure in residential housing stock

2019 ◽  
Vol 111 ◽  
pp. 01064
Author(s):  
David Keogh ◽  
Mohammad Saffari ◽  
Mattia de Rosa ◽  
Donal P. Finn
Keyword(s):  
Heat Pump ◽  
Fossil Fuel ◽  
Energy Savings ◽  
Housing Stock ◽  
Primary Energy ◽  
Pump System ◽  
Heat Pump System ◽  
Energy Assessment ◽  
Electric Heat ◽  
Hybrid Heat Pump

Hybrid electric-gas heat pump systems are a possible retrofit option in older residential buildings. Older buildings can be challenging to retrofit and in this context hybrid systems can offer an intermediate route to decarbonisation of building heating energy demand. This is especially the case, where deep retrofit measures coupled with monovalent electric heat pump systems may not be feasible from an economic perspective. The aim of the current paper is to examine the suitability of a hybrid electric-gas heat pump system in comparison to electric heat pump systems as a retrofit measure for Irish housing stock and to benchmark both options against existing fossil fuel baseline systems. A detailed building energy model of a residential dwelling was developed and calibrated to within acceptable ASHRAE standards. An energy assessment was carried out which investigates each retrofit scenario. Key findings include: (i) both the all-electric and hybrid heat pump systems deliver primary energy savings compared to the fossil fuel baseline systems, (ii) hybrid systems attain higher primary energy savings compared to all-electric heat pump, where the hybrid system incorporates flexible delivery temperatures compared to a fixed delivery temperature tor the all-electric heat pump system.

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