Results 31 to 40 of about 284,823 (311)

Experimental Study on the Performance of a Household Dual-Source Heat Pump Water Heater

open access: yesEnergies, 2018
A household dual source heat pump water heater is proposed to utilize the energy of wastewater and air heat in a bathroom. The heat pump system integrates a wastewater source heat pump (WSHP), air source heat pump (ASHP), and a preheater.
Xiang Gou   +5 more
doaj   +1 more source

Analysis of retrofit air source heat pump performance : results from detailed simulations and comparison to field trial data [PDF]

open access: yes, 2011
In the UK, gas boilers are the predominant energy source for heating in housing, due primarily to the ready availability of natural gas. The take-up of heat pumps has lagged far behind Europe and North America.
Cockroft, J., Kelly, N.J.
core   +1 more source

Optimisation of Air Source Heat Pumps in Residential Retrofits [PDF]

open access: yesJournal of Sustainable Design and Applied Research in Innovative Engineering of the Built Environment, 2020
Correctly applied air source heat pumps (ASHPs) are a proven technology that can reliably and effectively replace fossil fuel heating systems and achieve targeted heating-related CO2 reductions. However, poor-quality system design, installation or commissioning can lead to higher than expected running costs and poorly-performing heating systems, thus ...
Hoyne, Seamus   +2 more
openaire   +3 more sources

Application and Analysis of a Heat Pump System for Building Heating and Cooling Using Extracting Heat Energy from Untreated Sewage

open access: yesBuildings, 2023
Heat pump technology can extract low-level heat energy from urban sewage to heat or cool buildings, which can alleviate the two major problems of energy shortage and environmental pollution to a certain extent.
Zhaoyi Zhuang   +5 more
doaj   +1 more source

New Method of Heat Compensation for Defrosting of Air Source Heat Pump System in Winter

open access: yesZhileng xuebao, 2006
Frost removing of air-source heat pump results in shortage of heat output,chilly air flow,and less comfortable interior environment in winter.In our study,a new method to solve the problem of frost-removing in air-source heat pump units was proposed ...
陈超, 欧阳军, 王秀丽, 刘铭
doaj   +2 more sources

Experimental study of an instantaneous-heating air source heat pump water heater with a temperature stratified water tank

open access: yesAdvances in Mechanical Engineering, 2016
An instantaneous-heating air source heat pump water heater with a temperature stratified water tank was put forward. The instantaneous-heating air source heat pump water heater was designed to produce hot water instantly by three modes, namely condenser ...
Mingjing Lei   +3 more
doaj   +1 more source

Investigation of Optimal Heating and Cooling Systems in Residential Buildings [PDF]

open access: yes, 2008
This article compares four heating and cooling systems. The systems are: a high efficiency furnace and electric air conditioner; a ground source heat pump; an absorption air conditioner and direct heating; and a thermally driven heat pump; the last two ...
Bolling, Angela L., Mathias, James A.
core   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Impact of residential energy system sizing and control over heat pump’s system cost and reliability [PDF]

open access: yes, 2011
Using a simulation-based approach, this work analyses the impact that different energy unit sizes and control methodologies will have over the capital and running costs of an air source heat pump (ASHP) system to be installed in a refurbished dwelling. A
Cooper, Catherine   +3 more
core  

Modelling and simulation of a heat pump for simultaneous heating and cooling [PDF]

open access: yes, 2012
International audienceThe heat pump for simultaneous heating and cooling (HPS) carries out space heating, space cooling and hot water production for small office and residential buildings. It works under heating, cooling and simultaneous modes to produce
Byrne, Paul   +2 more
core   +3 more sources

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