Results 51 to 60 of about 286,442 (312)
Energy Efficiency Technologies – Air Source Heat Pump vs. Ground Source Heat Pump
Journal of Sustainable Development, 2009 Heat pump deserves the name of eco-innovation. It uses ‘free energy’ - warmth collected in the soil or in the air to provide heat ing and cooling. There are two main types of heat pumps – air source heat pump and ground source heat pump. How do they work? What are the benefits of each system? How do they compare?
openaire +2 more sources
Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling
Advanced Engineering Materials, EarlyView.Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer +3 more
wiley +1 more source
Heating performance of an air source heat pump with a portable thermoelectric subcooler
Case Studies in Thermal EngineeringThis study investigates the heating performance of an integrated air-source heat pump (ASHP) with a thermoelectric subcooler (TES) module, revealing significant performance enhancements, particularly in colder temperatures. Results show that adding the portable TES boosts the ASHP's heating capacity, making it feasible for residential applications. The
Yifeng Hu +3 more
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Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres
Advanced Engineering Materials, EarlyView.This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann +3 more
wiley +1 more source
Investigation on the performance of air source heat pump system with new environment friendly refrigerants for a low carbon building [PDF]
, 2016 Energy is an important development factor. It is consumed in different format from different sources in daily human activities. Solar energy, as the most fundamental renewable energy resource, serves in a clean, domestic and environmentally friendly way
Cuce, E, Ding, Y, Lu, C, Riffat, S
core
Development of concepts for a zero-fossil-energy greenhouse [PDF]
, 2008 Dutch government and greenhouse horticultural practice aim for strongly reduced fossil energy use and of environmental loads in 2010 and energy neutral greenhouses in 2020.
Bot, G.P.A. +4 more
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Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Dynamic thermal simulation of ground heat exchangers for renewable heating of buildings [PDF]
, 2016 The temperature of deep soil is relatively stable throughout a year and the thermal energy stored in soil can be used to provide renewable heat or coolth for a building.
Gan, Guohui
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Research Progress of Air Source Heat Pump Heat Storage System
Zhileng xuebao, 2017 The combination of heat storage technology and air source heat pump (ASHP) can provide heat source for air source heat pump defrosting, solve the problem of variable heat due to the fluctuation of outdoor air parameters, alleviate the contradiction ...
Ni Long +3 more
doaj
Advances in Mechanical Engineering, 2013 Due to the low temperatures, the heating efficiency of air source heat pump systems during the winter is very low. To address this problem, a low-temperature solar hot water system was added to a basic air source heat pump system. Several parameters were
Jinshun Wu +8 more
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