Results 91 to 100 of about 90,105 (214)

Heat Pump With a Condenser Including Solid-Liquid Phase Change Material

, 2012
The growing usage of heat pumps increases the global electricity demand. During winter, the external temperature peak is at noon whereas electricity peak is at the end of the afternoon. Latent heat storage can be used to benefit from the time lag between
Dalicieux, Pascal, Maaraoui, Samer, Maaraoui, S., Clodic, D., Clodic, Denis, Dalicieux, P.   +5 more
core  

Dynamic characteristics of a two-phase mechanically pumped cooling loop for avionics

Case Studies in Thermal Engineering
Given the varying flight conditions and mission requirements that affect aircraft cold sources and heat loads, it is crucial to investigate the dynamic behavior of a two-phase mechanically pumped cooling loop (MPCL) for avionics.
Shaohuan Qi, Zhaohao Xu, Jiale Wang, Yu Xu   +3 more
doaj   +1 more source

Performance of a Compact Absorption Heat Pump Containing Microchannel Absorber Components

, 2012
Novel microchannel absorbers have been scaled-up and incorporated into a 5-kW-scale ammonia-water absorption heat pump. The planar microchannel absorbers operate with thin wick structures to enhance mass transfer in the absorption channels which are ...
Humble, Paul H, TeGrotenhuis, Ward E, King, Dale A, Caldwell, Dustin D., Krishnan, Shankar   +4 more
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Research Status and Trends on Industrial Heat Pump and Network Utilization of Waste Heat

Zhileng xuebao, 2017
Plenty of low-grade heat is produced duringindustrial energy consumption. Waste heat reuse significantly contributesto energy-savings ifhigh-efficiency technologies are employed for heat recovery.
Wang Ruzhu, Wang Liwei, Cai Jun, Du Shuai, Hu Bin, Pan Quanwen, Jiang Long, Xu Zhenyuan   +7 more
doaj  

A study of optimal control approaches of water-to-water CO2 heat pump for domestic hot water use

Case Studies in Thermal Engineering
Carbon dioxide (CO2) heat pumps are not causing ozone layer depletion, while offering high temperature water. Typical control (TC) can realize normal operation of water-to-water CO2 heat pump.
Yantong Li, Natasa Nord, Huibin Yin, Gechuanqi Pan, Changhong Wang, Tingting Wu, Inge Håvard Rekstad   +6 more
doaj   +1 more source

The Effect of Inner Grooved Tubes on the Heat Transfer Performace of Air-Cooled Heat Exchangers of Co2 Heat Pump System

, 2012
In the CO2 heat pump system, Poly alkyl glycol (PAG) oil is commonly used for lubrication of the compressor, while it is reported that the PAG oil has influence on the heat transfer performance due to its immiscibility against CO2 within its working ...
Fujino, Hirokazu, Kaji, Ryuhei, Yoshioka, Shun   +2 more
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Heat Pump for High School Heat Recovery

, 2006
The heat pump system used for recycling and reusing waste heat in s high school bathroom was minutely analyzed in its coefficient of performance, onetime utilization ratio of energy, economic property and so on.
Wang, H., Huang, K., Zhou, X.
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Data-driven systematic methodology for predicting optimal heat pump integration based on temperature levels and refrigerants

In the context of the industrial shift towards carbon neutrality and electrification, high temperature heat pumps have emerged as feasible solutions for decarbonizing the heat supply at temperatures previously associated only to fired or resistive ...
Bongartz, Dominik, Cortvriendt, Lander, Florez Orrego, Daniel Alexander, Maréchal, François   +3 more
core   +1 more source

Modeling and simulation of a gas absorption heat pump

, 2014
Rising energy costs, increasing requirements in terms of home energy efficiency and greater environmental awareness have brought about great interest in gas absorption heat pumps (GAHP).
CARLUCCIO, FEDERICA, STARACE, Giuseppe, C. Bongs   +2 more
core  

Thermodynamic analysis of a high-temperature heat pump using low GWP natural working fluids for upgrading district heating to process heating

Entropie
Mohsen Sadeghi, Tage Petersen, Zhenyu Yang, Benjamin Zühlsdorf, Kim Stenholdt Madsen, Ahmad Arabkoohsar   +5 more
doaj   +1 more source