Experimental and numerical study of a heat pump for simultaneous heating and cooling using air as a balancing source
type: Dataset
description: Nowadays, the trend which combines a reinforcement of thermal insulation of buildings and an increase of internal gains due to more and more electric devices (such as computers, domestic appliances...) leads to a decrease of heating loads but can generate cooling loads in mid-season and summer. Heating and cooling loads become more and more balanced during a day and during a year in general. Moreover, domestic hot water (DHW) production takes an increasing part in the total energy needs, which provokes a partial simultaneity of heating and cooling needs as soon as cooling is required. A heat pump producing heat and cold simultaneously associated to a short time energy storage system appears then as an interesting solution. The Heat Pump for Simultaneous heating and cooling1 (HPS) developed by our research team is a hot and cold water production system designed to carry out space heating, space cooling and DHW production for hotels, luxury dwellings and smaller office buildings. The key features of the concept reside in the conception of the frigorific circuit and in the control of the operating modes and the defrosting sequence. Heat and cold productions are adapted to building loads using an ambient air (free source easily available) balancing coil, working either as a condenser or an evaporator. During the heating period, the HPS stores some energy, obtained by subcooling of the refrigerant, on the cold water loop. This energy is used subsequently at the water evaporator in order to improve the performance by an increase of the evaporating temperature and if necessary, to carry out defrosting without stopping the heat production. The defrosting energy is provided by a thermosiphon formed between the two evaporators at different temperatures. The use of a subcooler imposes a high pressure control system to ensure a complete condensation in the useful water condenser. The high pressure control system is composed of a two-phase refrigerant receiver connected at the t…
issued: 2026-05-16T12:03:36.127189
language: fr
modified: 2026-05-16T12:03:36.127195
contact point: Organization
  fn: CCSD
keyword: chauffage
keyword: co2
keyword: conception
keyword: cooling
keyword: design
keyword: domestic-hot-water
keyword: eau-chaude-sanitaire
keyword: fluides-frigorigenes
keyword: heat-pump
keyword: heating
keyword: infoeu-reposemanticsdoctoralthesis
keyword: machine-frigorifique
keyword: modelisation
keyword: modelling
keyword: physmecameflphysics-physicsmechanics-physicsfluid-mechanics-physicsclass-ph
keyword: physmecatherphysics-physicsmechanics-physicsthermics-physicsclass-ph
keyword: pompe-a-chaleur
keyword: production-simultanee
keyword: prototype
keyword: r407c
keyword: rafraichissement
keyword: refrigerants
keyword: refrigeration
keyword: simulation
keyword: simultaneous-production
keyword: spimecameflengineering-sciences-physicsmechanics-physicsmed-phfluids-mechanics-physicsc
keyword: spimecatherengineering-sciences-physicsmechanics-physicsmed-phthermics-physicsclass-ph
keyword: thermofrigopompe
keyword: theses
landing page: https://theses.hal.science/tel-00702941

Experimental and numerical study of a heat pump for simultaneous heating and cooling using air as a balancing source
type: Distribution
format: HTML
issued: 2026-05-16T12:03:36.148884
modified: 2026-05-16T12:03:35.986003
access URL: https://theses.hal.science/tel-00702941

test_moissonnage_selune
type: Agent