The Heat Pump Ontology (HPOnt)

The Heat Pump Ontology (HPOnt) is a domain ontology developed to formalize and represent all relevant information about heat pumps, including their components, operational parameters, performance metrics, and integration with building energy systems. HPOnt provides a structured vocabulary for describing heat pump types, working fluids, control strategies, installation contexts, and maintenance procedures. The ontology supports semantic annotation of heat pump data, enabling interoperability between smart building systems, energy management platforms, and research databases. HPOnt is designed for extensibility and can be adapted to represent new heat pump technologies, regulatory requirements, and sustainability metrics. By providing a standardized framework, HPOnt facilitates advanced analytics, predictive maintenance, and optimization of heat pump operation in residential, commercial, and industrial settings. The ontology is actively maintained and extended as part of the REACT project and is aligned with European Union research and innovation initiatives.

Example Usage: Annotate a smart building energy management system with HPOnt terms to specify the types of heat pumps installed, their operational parameters (e.g., COP, setpoints), maintenance schedules, and integration with renewable energy sources, enabling semantic search and optimization of building energy performance.

Metrics & Statistics

Graph Statistics

Total Nodes

84

Total Edges

143

Root Nodes

16

Leaf Nodes

43
Knowledge Coverage Statistics

Classes

4

Individuals

6

Properties

12
Hierarchical Metrics

Maximum Depth

4

Minimum Depth

0

Average Depth

1.13

Depth Variance

1.98
Breadth Metrics

Maximum Breadth

16

Minimum Breadth

2

Average Breadth

6.00

Breadth Variance

27.20
LLMs4OL Dataset Statistics

Term Types

5

Taxonomic Relations

0

Non-taxonomic Relations

0

Average Terms per Type

2.50

Usage Example

Use the following code to import this ontology programmatically:

from ontolearner.ontology import HPOnt

ontology = HPOnt()
ontology.load("path/to/HPOnt-ontology.owl")

# Extract datasets
data = ontology.extract()

# Access specific relations
term_types = data.term_typings
taxonomic_relations = data.type_taxonomies
non_taxonomic_relations = data.type_non_taxonomic_relations