4.5 Article

Investigation on the efficiency degradation characterization of low ambient temperature air source heat pump under partial load operation

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Thermodynamics

Experimental study on heat transfer characteristics of closed thermosyphon at different volumes and inclination angles for variable vacuum pressures

Halit Arat et al.

Summary: This study experimentally investigated the thermal performance of vacuumed copper pipe with different volume values and inclination angles under variable vacuum pressures. The experimental boiling heat transfer coefficients showed good agreement with existing correlations in the literature, and the best thermal resistance was achieved in the vacuumed copper pipe filled with 10 ml of water at a 90-degree inclination angle.

CASE STUDIES IN THERMAL ENGINEERING (2021)

Article Thermodynamics

A semi-theoretical model for energy efficiency assessment of air source heat pump systems

Zhaowei Xu et al.

Summary: This paper presents a semi-theoretical model for fixed speed ASHP which considers various factors for accurate energy efficiency analysis. By statistical analysis of field monitoring data, the relationship between heat pump system efficiency and operating mode is successfully established.

ENERGY CONVERSION AND MANAGEMENT (2021)

Article Thermodynamics

Impact of water volume on the energy saving potential of air source heat pump systems

Hao Li et al.

Summary: Water volume plays a significant role in the energy efficiency of air source heat pump systems, particularly in low thermal inertia heating systems in northern China. It is important to consider cycling losses, buffer tank heat loss, and overmatching in order to optimize efficiency and economy. A recommended total water volume allocation index of 30 to 40 L/kW under nominal heating capacity is proposed for rural houses in northern China.

INTERNATIONAL JOURNAL OF REFRIGERATION (2021)

Review Thermodynamics

'Coal-to-electricity' project is ongoing in north China

Xu Shuxue et al.

ENERGY (2020)

Article Green & Sustainable Science & Technology

Characterisation of efficiency losses in ground source heat pump systems equipped with a double parallel stage: A case study

J. Garcia-Cespedes et al.

RENEWABLE ENERGY (2020)

Article Green & Sustainable Science & Technology

Atmospheric air quality in Beijing improved by application of air source heat pump (ASHP) systems

Zhaowei Xu et al.

JOURNAL OF CLEANER PRODUCTION (2020)

Article Thermodynamics

Seasonal cooling performance of air conditioners: The importance of independent test procedures used for MEPS and labels

Carsten Palkowski et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2019)

Review Green & Sustainable Science & Technology

Advances in vapor compression air source heat pump system in cold regions: A review

Long Zhang et al.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2018)

Article Thermodynamics

Experimental study on R-22, R-427A, R-161 and R-290 in air-source heat pump for space heating at low ambient temperatures

Xiaoning Chen et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2018)

Article Construction & Building Technology

Annual performances of reversible air-to-water heat pumps in small residential buildings

Francesco Madonna et al.

ENERGY AND BUILDINGS (2013)

Article Thermodynamics

Partialization losses of ON/OFF operation of water-to-water refrigeration/heat-pump units

J. M. Corberan et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2013)

Article Thermodynamics

Cycling losses in refrigeration equipment: An experimental evaluation

Giacomo Bagarella et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2013)

Article Thermodynamics

Theoretical and experimental investigation of startup and shutdown behavior of residential heat pumps

Michael Uhlmann et al.

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID (2012)

Article Construction & Building Technology

A techno-economic comparison of ground-coupled and air-coupled heat pump system for space cooling

Hikmet Esen et al.

BUILDING AND ENVIRONMENT (2007)