In order to verify the versatility of the experimental correlations of the previous work, and the same experimental method from the previous work is selected to obtain the heat transfer characteristics of the salt and subcritical water in the model of tube-shell heat exchanger. and it is...

The hybrid heating system consisting of loop heat pipe solar collector (LHPSC) and ground source heat pump (GSHP) was proposed to maintain greenhouse temperature in Harbin (the coldest provincial capital of China) in this paper. The thermal model was developed to predict transient greenhouse and...

The deployment of renewable energy technologies in the home, such as heat pump systems, is increasingly encouraged in many countries to curb climate change and dependence on fossil fuels. However, the adoption process is not well-understood. In this paper, we develop an agent-based model to...

The performance of a fabricated heat pipe with an elliptical cross-section area and different aspect ratios was evaluated and compared to that of a circular heat pipe operating under the same conditions. This single heat pipe thermal system is designed and assembled to be used as a heat sink for...

District heating grids worldwide are still powered predominantly by combustion of fossil fuels. In order to decarbonize them, new designs for the district heating and cooling systems are required. This paper describes the laboratory at the research center for Combined Smart Energy Systems...

The sustainable development of deep geothermal is restricted by resource quality and insufficient reinjection. A horizontal-well deep borehole closed-loop heat exchanger (DBHE) is presented in this paper, enlarging the heat exchange area between the working fluid and hydrothermal reservoir....

To promote the heat transfer capacity of the condenser end in the heat pipe heat exchanger, the experimental and numerical investigation have been carried out to study the heat transfer and fluid flow characteristics for three densely longitudinal fins enhanced annular heat exchanger (AHE)...

Ice accretion seriously impairs the aerodynamics performance of the aircraft wing surface. In this paper, the influence of power density and actuator configuration on stream-wise plasma heat knife anti-icing is studied. And the anti-icing performance of two kinds of electric heating film is...

The feasibility of using air-water heat pumps to provide residential and industrial buildings with heating, cooling and ventilation requires taking into account a large number of different factors, such as the estimated and average outdoor temperature for the heating period in the considered...

Among various types of ground heat exchangers (GHEXs), a coaxial-type GHEX exhibits outstanding thermal performance owing to the geometric characteristics of the concentric tube-in-tube configuration. In this study, a computational fluid dynamics (CFD) model was developed and verified using...

With the implementation of the "carbon peaking and carbon neutral" strategy, energy efficiency in buildings is becoming increasingly important, and heat transfer in the envelope as an important component of building energy consumption needs to be studied. Wall implanted with heat pipes (WIHP) is...

Renewable energy is a key for sustainable development all over the world and renewables used in many areas including water heating. For water heating, among many options, electrical and solar energy can be used to assist heat pumps. This study explores usage of photovoltaic and thermal...

This paper presents advanced analysis of state-of-the-art Machine Learning (ML) model with explainable AI (XAI) tools – namely SHAP (Shapley Additive exPlanations). The model analyzed is a deep neural network (DNN) predicting heat demand in Warsaw District Heating Network – the largest...

In the context of promoting "carbon peaking" and "carbon neutral" energy, the complementary use of multiple energy sources has been further developed. This paper studies a type of combined solar thermal- Photovoltaic (ST-PV) power generation and heating system to explore the coupling of various...

Chlorinated organic compounds (COCs) are persistent organic pollutants (POPs) often found in groundwater near industrial sites or in industrial wastewaters. Adsorption on activated carbon is a common strategy to remediate these waters but spent activated carbon results in a toxic residuum to...

Inefficient energy pricing hinders economic development in many countries. We examine long-run effects of a recent heating reform in China that replaced a commonly-used fixed-payment system with individually-metered pricing. Using staggered policy rollouts and administrative data on...

We examine the effects of cold weather periods on family budgets and on nutritional outcomes in poor American families. Expenditures on food and home fuels are tracked by linking the Consumer Expenditure Survey to temperature data. Using the Third National Health and Nutrition Examination...

In the UK, the largest proportion of household energy use is for space heating. Popular media make claims of a green hypocrisy: groups which have the strongest attitude towards the environment have the highest emissions. This study examines whether environmental attitudes and behaviors are...

This paper studies consumer heterogeneity in the valuation of lifetime heating energy costs. The valuation is expressed as the willingness to pay higher upfront costs to obtain savings over the lifetime of the heating system. The analysis relies on administrative register data on new residential...

The UK has adopted ambitious climate targets aiming to reach net zero GHG emissions by 2050). One pathway for decarbonisation is the electrification of space heating, at the same time as the power system is decarbonised through a rising share of renewable sources. Heat pumps (HP) offer a...

Previous research finds that moving home can serve as a starting point for more sustainable living practices, specifically lower energy consumption. This research examines whether changes in occupancy or tenure at residential properties is also associated with decisions on overhauling a...

The People's Republic of China (PRC) has taken bold actions since 2016 to utilize low-grade industrial excess heat to improve the energy efficiency of district heating systems. This study aims to draw policy insights into the PRC's field experience of overcoming barriers to energy efficiency...

UK and Scottish Governments are both considering regulatory frameworks for heat networks. BEIS has committed to establishing an effective long term market framework, to ensuring sufficient consumer protections, growing investment in the sector and maximising the potential for decarbonisation. In...

In the Kyrgyz Republic, access to reliable and affordable heating is critical given the cold and long winters in its mountainous regions. With central heating solutions such as district heating limited to the capital city Bishkek and other urban areas, over 80 percent of households resort to...

Fostering the uptake of heating technologies based on renewable resources is an important part of the EU energy policy. Yet, despite efforts to promote their diffusion, heating systems based on fossil fuels are still predominant. In order to better tailor energy policies to citizens preferences,...

District heating plays an important role in many countries with cold climates. District heating are local systems and in most cases, they organized as natural monopoly markets. This article examines the three variants for the formation of prices for household consumers on monopoly district...

Steel is the inevitable material for the infrastructure and has the strategic importance for the growth of the country. Iron and steel making industry is one of the most energy-intensive industries, with 5% of the worlds total energy consumption. Therefore, it is required to develop suitable and...

Previous research finds that moving home can serve as a starting point for more sustainable living practices, specifically lower energy consumption. This research examines whether changes in occupancy or tenure at residential properties is also associated with decisions on overhauling a...

This study provides cost data for different heating appliances, covering: gas boilers, oil boilers, biomass boilers (pellet), air source heat pumps, ground source heat pumps, air-air heat pumps (air conditioners), direct acting electric heaters (panel heaters), storage heaters (high heat...

Solar thermal roof-top installations offer the potential to meet an important share of residential water and space heating demand in Germany. These systems are subsidised with grants under the so-called market incentive program. The political goal is to encourage the adoption of renewable energy...

Residential heating accounts for almost one-fifth of Germany’s final energy consumption. This report evaluates an extensive database of heating bills for buildings with two or more apartments, representing more than two-thirds of the total housing stock in Germany. Despite commitments to...

Growth in energy demand together with the expansion of variable renewables has significant implications for the future electricity system. The increased volatility from growing intermittent production requires new sources of flexibility at a much greater scale to help maintain system balance. In...

Addressing the growing concerns of climate change necessitates the decarbonisation of energy sectors globally. The heating sector is the largest energy end-use, accounting for almost half of the total energy consumption in most countries. This paper presents an extensive review of previous works...

The process of water heating consumes enormous amounts of energy. South African households may see up to 40% of their total energy be allotted to the heating of water. The implementation of energy efficient or renewable energy source technologies, for the main purpose of heating water, may...

This paper explores heterogeneity in preferences for renewable home heating, more specifically heat pump systems, using a novel combination of psychological construct statements, based on the theory of planned behavior, and a discrete choice experiment. We employ a latent class analysis of a...

In the context of reducing greenhouse gas emissions in the residential sector, fuel switching from coal and oil to natural gas is considered as a policy option. The paper considers fuel choice decisions among households within 30 metres of the Irish natural gas network. Consistent with earlier...

The percentage of U.S. homes heated with electricity has increased steadily from 1% in 1950, to 8% in 1970, to 26% in 1990, to 39% in 2018. This paper investigates the key determinants of this increase in electrification using data on heating choices from millions of U.S. households over a...